MXPA98004668A - Distributor of multiple valves for use with a processing device of pres - Google Patents

Abstract

The present invention relates to an integral valve distributor body (120) for a pressure transmitter having four instrument mounting holes (160, 161, 162, 163) the centers of which define corners of an imaginary prism. The valve chambers defining the respective valve seats (148, 152, etc.) are positioned so that the valve seats of at least a portion of each of the valve chambers are all within the imaginary prism. Two valve holes, preferably vent valves (148, 152). Machined at one (125) of the peripheral walls of the distributor body. They are provided with valves of the type where the valve stem is sealed against the valve chamber (14, 152) in place of the cap. All the passages (142, 145, etc.) of the distributor passages system are straight, placed within the prism, and parallel with at least one of the flat outer walls (123, 124, 125, etc.) of the distributor block to facilitate the manufacture

Description

DISTRIBUTOR OF MULTIPLE VALVES FOR USE WITH A PRESSURE PROCESSING DEVICE BACKGROUND OF THE INVENTION The present invention relates to valve distributors as described in the preamble of m 1. The pressure transmitters serve for the purpose of monitoring the flow variables of a process fluid in a pipeline. A pressure transmitter has a first and a second fluid inlet of the process. In operation, each of the two inputs communicates, with a separate point in a process fluid pipe. The pressure transmitter typically transmits pressure values or pressure differentials at the two points. The transmitted values are then used in the extrapolation of the various conditions that prevail in the pipeline. An example of an operative arrangement of a pressure transmitter is shown in the U.S.P. 4,466,290 (Frick) issued on August 21, 1984 and another prior art referred to below. In pipe systems, there is often limited space around a pressure transmitter. The different separation between the centers of the outputs of the source of the process fluid in the pressure transmitter has to be adjusted with the minimum points of potential leaks. For this reason, pressure transmitters have recently been mounted directly on a valve manifold. Valve manifolds of this type are solid blocks provided with a number, usually three or five, of valves. The valves control the passage through the block from a source of process or cleaning fluid to the transmitter and / or to an exhaust discharge. The block is interposed between the pressure transmitter and the source of the process fluid. The limited space available around a pressure transmitter results in attempts to reduce the size of the dispenser such that the distributor and valves mounted on the distributor require as little space as possible, while allowing safe and convenient manual operation of the valves. valves in the handling of the flow of process or cleaning fluid through the distributor. US Patent 5,277,224 issued January 11, 1994 (Hutton et al.) Which is incorporated herein by reference, presents an example of a dispenser where the space required for the operation of the dispenser is reduced. However, viewed from a viewpoint of the present invention, there is still a part of the dispenser projecting laterally beyond the periphery defined by the mounting holes that are typically adapted to correspond to the mounting holes or bolts of a transmitter. of associated pressure. Examples of additional prior art references showing the state of the art include, for example, U.S. Patent No. 3,596,680 (Adams), issued August 3, 1971; U.S. Patent No. 3,756,274 (ol fgrartim), issued September 4, 1973. Patent No. 1,797,591 (Sartakoff) issued March 24, 1931 and other references. It is an object of the present invention to further promote the technique of the dispensers for the purpose described and to provide a dispenser that will allow the safe operation of a multi-valve manifold, where the space required for the operation of the valves is further reduced and where simplifies the total arrangement of the passages within the distributor block to reduce production costs. The object is satisfied by the characteristic feature of ms 1 to 12. In particular, the features of the characteristic se of ms 1-9, 11 and 12, improve the space saving advantage while m 10 provides a improvement in manufacturing facilitation. The invention will be described by way of two exemplary preferred embodiments, with reference to the accompanying drawings, simplified, schematic, not to scale. The drawings show: Figure 1 a perspective view of the upper part and the front showing a first embodiment of the distributor block that includes the invention; 2 shows a perspective view of the bottom and the rear part of the distributor block of FIG. 1; Figure 3 a view of the upper part of the distributor according to Figure 1; Figure 4 a front view thereof; Figure 5 a view of the bottom thereof; Figure 6 section VI-VI of Figure 4; Figure 7 section VII-VII of Figure 4; Figure 8 section VIII-VIII of Figure 4; Figure 9 section IX-IX of Figure 5; Figure 10 section X-X of Figure 5; Figure 11 section XI-XI of Figure 5; Figure 12 a perspective view of the upper part and the front showing a second embodiment of the distributor block including the invention; Figure 13 a perspective view of the bottom and rear part of the distributor block of Figure 12; Figure 14 a plan view of the upper part of the dispenser shown in Figure 12; Figure 15 a front view thereof; Figure 16 a plan view of the bottom thereof; Figure 17 section XVII - XVII of the Figure fifteen; Figure 18 section XVIII - XVIII of the Figure fifteen; Figure 19 section XIX -XIX of Figure 16; Figure 20 section XX-XX of Figure 16; Figure 21 (on the sheet of Figure 17) the right side view in the representation of Figure 15, the left side view thereof being identical; Figure 22 is an enlarged partial view in the line of section XXII -XXII of Figure 4, but showing the relief valves installed in the block; and Figure 23 a partial view, enlarged in section line VI-VI of Figure 4, but showing a compensating valve installed in the block. With reference first to the embodiment shown in Figures 1-11, the dispenser has a body of the type of a solid block 120 made, in the embodiment shown, of stainless steel, which is understood that the choice of material is optional and depends on the particular application. The block is in the form of a rectangular prism and includes opposite top and bottom walls, or first and second surface sections 121, 122, a first side wall 123, a second side wall 124, a front wall 125 and a rear wall 126. Walls 123-126 are also referred to as "peripheral walls" since they enclose the periphery of block 120 and are generally referred to as "a peripheral section". In the second surface section 122, a first process fluid inlet orifice 127 and a second process fluid inlet orifice 128 are machined. The first inlet 127 is communicated, via a first process passage 129 (Figure 10) inclined upwards and inwards with a horizontal branch 130 defining an inwardly directed, coaxial extension of a first block valve chamber 131 coaxial with a first block valve opening 132, threaded. The threaded opening 132 in effect forms a threaded outer portion of a block valve mounting hole comprised of the valve chamber 131 and the opening 132. Each valve chamber of the block defines a valve seat as will be described later. The remaining valve mounting holes described throughout this specification have the same functional arrangement. The second inlet opening 128 is also communicated, via a second process passage 133, inclined upwards and inwards with a horizontal, short branch 134 defining an inwardly directed, coaxial extension of a coaxial valve chamber with a second block valve opening 136. The transition between the horizontal branch 130 at its entrance in the valve chamber 131 defines a valve seat co-operating with a valve member (not shown) to selectively block the fluid inlet from the pressurized process in the valve chamber 131. Similarly, the transition between the branch 134 at its entrance in the valve chamber 135 defines a valve seat co-operating with a valve member (not shown) to selectively block the inlet of the second pressurized process fluid. in the valve chamber 135. The valve chamber 131 communicates permanently through a first radial channel 137, short with a first instrument cavity 138. Similarly, the valve chamber 135 communicates via a second radial, short conduit 139 with a second instrument cavity 140. The cavity 138 is also in permanent communication with an inlet of the oblique conduit 141 that slopes in the direction of the upper wall towards the bottom wall 122 and obliquely towards the second side wall 124, as best seen in Figure 10. outlet of conduit 141, in turn, communicates permanently with a coaxial extension conduit 142 of compensating valve chamber 143, which in turn is coaxial with outer, threaded portion 144 of the compensating valve bore. The cavity 140 communicates permanently through a vertical conduit 150 and an oblique conduit 145, with the compensating valve chamber 143. The general structure of the compensating valve chamber 143 is similar to what was described above. That is, the transition between the valve chamber 143 and the extension conduit 142 defines a valve seat for a valve member of a valve (not shown) normally secured in a threaded manner in the hole 144. In this way, it will be appreciated that with the compensating valve open, the valve chamber 143, Figure 6 and the extension conduit 142, and thus the two cavities 138, 140, are in communication for fluids to compensate for the pressure in the cavities 138, 140. cavity 138 is further communicated, through an oblique conduit 146 that slopes from the upper wall 121 towards the bottom wall 122 and obliquely towards the rearward wall 126 (Figure 8), with an extension conduit 147 coaxial with a first cylindrical valence chamber 148, which, in turn, is coaxial with a hole 149 valve, threaded a first vent valve. As mentioned above, the conduit 150 connects the cavity 140 with the oblique conduit 145 and thus with the chamber 143 of the compensating valve. Figure 7 shows that the lower portion of the vertical conduit 150 also connects the cavity 140 with a short extension conduit 151, which forms a coaxial extension of a second cylindrical chamber 152 of the relief valve which, in turn, is coaxial with a threaded part 153 of the hole 153-152 of the valve assembly of a second relief valve. Although certain structural differences are discussed later, the exhaust valve chambers 148 and 152 and their extension conduits 147, 151 are arranged similar to the remaining valve chambers since there is a valve seat at the inlet of each conduit of extension 147, 151 in its associated chamber 148, 152.

The seat is compatible with a closure member, the structure of which will be described later. The end of the first vent valve chamber 148 away from the associated threaded first valve hole 149 communicates with the inlet port of a transverse conduit 154, FIG. 11. As best seen from FIG. Inlet port of conduit 154 is located in the side wall of valve chamber 148, near the valve seat of chamber 148. The downstream end of transverse conduit 154 is, in permanent communication with a first vent outlet 155 ( Figure 11). The end of the second shorter chamber 152 of the vent valve in its valve seat is similarly in permanent communication with an inlet (Figure 9) of a second transverse passage 156 and through this with a second outlet 157 of venting. The exhaust outlets 155, 157 are adapted to become connected to suitable discharge ducts, external to the body of the distributor and which do not form part of the invention. There are two threaded holes 158, 159 in the rear wall 126. They serve the purpose of securing the body 120 to a support. Additionally, four mounting holes 160-163 are provided for the bolts securing a pressure transmitter complementary to the upper surface 121 of the body 120, in a sealing engagement with the cavities 138, 140. One of the features of the present invention it is seen from Figures 3, 5 and 6. In particular, apart from the relatively small thickness as measured between the upper and lower surface 121, 122, these Figures show that there are four mounting holes 160-163 placed around the periphery of the block 120. The axes of the holes 160-163 are perpendicular to the first surface section 121. Also, it can be seen that the axes of the holes 160-163 coincide with the sides of a reference prism. In the embodiment shown, the reference prism is a four-sided prism where the axes each actually define a junction or corner between two adjacent side sites. The number of mounting holes is optional and is usually given by the arrangement of mounting holes in a flange of a pressure transmitter or similar instrument to be used with block 120. However, even if the number of mounting holes is more than as shown, the arrangement is such that at least some of the axes of the mounting holes define corners of the reference prism. Both embodiments of the described block show a block for a five-valve distributor. There are elaborate provisions for mounting two block valves, one compensating valve and two vent valves. Those skilled in the art will readily appreciate, however, that the features of the present invention can be applied in a three-valve embodiment that typically has only two block valves and a balancing valve. It is true that the advantages of the reduced design size of the block of the present invention are best appreciated in a five-valve manifold. Yet, it can be said that there are "at least three" valve mounting openings, specifically threaded holes 132 and 136 for two block valves to selectively block the passage of process fluid and a mounting hole 144 of the compensating valve. It is noted that the inner ends of the valve chambers associated with the mentioned mounting holes, specifically the valve chambers 131, 135 and the compensating valve chamber 143 are all placed with their inner ends (where the valve seats are located). respective) placed inside the imaginary prismatic surface. Of course, in a five-valve manifold, the two remaining valve chambers 148, 152 satisfy the same criteria as the "at least three" chambers 131, 135, 143 with respect to their location relative to the mounting holes 160- 163 The drawings further show that the same compact size can be achieved, according to the invention, for a five-valve manifold, where at least one, and preferably two, valve chambers 148, 152 and the mounting holes are of a reduced diameter compared to the chambers 131, 135, 143, but they are relatively large to adjust the type of a valve, where the valve seat is located in the valve stem and does not engage the valve cap, but the inside from the valve chamber itself. This allows the use of an axially reduced length of the cap which, in combination with a hexagonal head at the outer end of the valve stem, provides a space saving feature, whereby two valves can be placed side by side valve, in the example mode, on each side of a compensating valve. It is preferred that the valves in which the seal is inside the valve chamber and the rod have a hexagonal head for coupling by a spanner or the like, are vent valves. The hexagonal heads provide a composite additional safety feature that with the distinct appearance virtually eliminates the possibility of the inadvertent height of the two valves instead of one of the three remaining valves. Yet another feature or feature seen from the drawings of the first embodiment is that a compact five-valve manifold is provided, wherein the inlet of the process fluid and the vent outlet or outlets are arranged on the same surface 122 of the body. This provides additional reduction of the required space compared to the existing five valve manifold, where the venting outlets usually have to be directed laterally and thus require additional space on the side of an installed manifold, for connection to the piping. venting. Despite the extremely small, total area of the block surface 122, there is a sufficient space provided between the inlets of the process fluid and the exhaust outlets for the use of the normal couplings for the sealed connection. This is due to the fact that the use of a valve chamber 148, 152 cuts placed on both sides of the compensating valve, but at a different level thereof, allows connection by passage 154, 156 easily worked to machines, short , for exhaust outlet orifices placed on an axis generally central to the block and perpendicular to the axis in which the process fluid inlet orifices 127, 128 are placed. Another notable feature of the distributor block shown in Figures 1-11, but also in Figures 12 to 20, is that all the passages are comprised of straight passage sections. These sections are all straight and are either perpendicular to the surfaces of the block, or if they are inclined, they are still parallel with at least one of the flat outer walls of the block. An example of this inclined passage section is the oblique conduit 145 which is at an acute angle to the axis of the chamber 143 of the compensating valve., but is parallel with the upper surface 121. This is contrary to the known manifolds of multiple valves where the valves are placed in at least two different planes, parallel with the upper surface, where there is a number of so-called angled, composite passages (ie, passages that slope obliquely with respect to any of the six basic surface walls 121-126). The machining of the angled, composite passages presents a complex and thus costly and time-consuming task in block production. Their elimination is facilitated mainly by the use of the vent valve chambers 148, 152 (and also 248, 253) which have a specifically designed length that depends on the location of the vent holes 155, 157 of the vent valve to the process input ports 127, 128 (and also 255 and 255 compared to 227, 228 as described below by reference to FIGS. 12, 13). The same applies to all other sections of the oblique or inclined passage, for example 129, 133, 146, 154, 156 and their counterparts 229, 235, 244 of the second embodiment which will now be described in greater detail. Reference can now be made to Figures 12-20 which show the second embodiment of the distributor block according to the invention. In many aspects, the second embodiment includes features or features similar to those described with reference to Figures 1-11, as stated, for example, by the comments in the preceding paragraph. As in the first embodiment, a block 220 is provided in the form of a prism, preferably rectangular, but not exclusively made of solid stainless steel. As in the preceding embodiments, the block has an upper wall and bottom 221, 222, a first side wall 223, a second side wall 224 a front wall 225 and a rear wall 226. Figure 16 shows the first and second holes of the second wall. entrance 227, 228 worked to maguina in the bottom wall 222, for the process fluid. The inlet 227 communicates, via a first passage 229 inclined upwards and inwards with an extension 230 of a first co-axial block valve chamber 231 with a first block valve opening 232, sought. The valve chamber 231, in turn, communicates with a connecting conduit 233, short with a first instrument cavity 234. The second inlet 228 is communicated in the same way, via the second passage 235, the extension 236 and the valve chamber 237, coaxial with the desired hole 238 of the second block valve, and then via a vertical connection conduit 239 , short with the second instrument cavity 240. The first instrument cavity 234 is further communicated via a first vertical, short, compensating channel 241 with a horizontal-oblique channel 242 (Figure 17) the discharge end of which is connected to a chamber 243 of the compensating valve. Similarly, the second instrument cavity 240 communicates via a channel 244 that slopes downward and inward, the outlet of which joins with an inward end of an extension channel 245 of the compensating valve (Figures 17, 20) coaxial with the chamber 243 of the compensating valve. Each of the circular cavities 234, 240 is connected to the respective vent conduit. The cavity 234 is connected via a vertical duct 246 (Figure 14) with a horizontal extension line 247 (Figures 18,19) coaxially and in communication with a first relief valve chamber 248 which, in turn, is connected through of a short vertical line 249 with a vent hole 250, threaded. In an identical manner, the cavity 240 is connected via a conduit 251 (Figures 14, 17), a horizontal extension 252 coaxial with the second relief valve chamber 253, the chamber 253 and a short vertical line 254 (Figures 18, 19). ) with a vent hole 255, threaded. It is noted that the length of the relief valve chambers 248, 253 is the same, but is greater than that of any of the remaining valve chambers 232, 237 and 243. This is to facilitate the orientation of the passage sections 249, 254 that can be machined perpendicular to the second surface 222 and straight at the holes 250, 255 of the relief scale (Figure 19). As in the preferred embodiments, the threaded holes 256, 257 (Figure 17) serve for the purpose of securing the block 220 to a suitable support or the like (not shown) and the four mounting holes 258-261 serve for the purpose of adjusting the bolts holding a pressure transmitter in sealing engagement with the upper surface 221 and thus with the cavities 234, 240. It is noted that, in the second embodiment the valve chambers 248, 253 of the mounting holes of the vent valve are of a uniform length. This feature adjusts the second preferred embodiment where the pairs of the process fluid inlet orifices 227, 228 and ventlets 250, 255 are each on a separate reference line, parallel to the other reference line, as the opposite in cross-arrangement of the reference line of the first modality. Referring now to Figure 22, as mentioned above, the enlarged representation generally corresponds to a cross-sectional, partial view on line XXII-XXII of Figure 4. With reference to the structure of the block itself, a pair of relief valves 301, 302 installed in the first embodiment of the distributor block of the invention. The long vent valve 148, and the threaded, coaxial, associated hole 149 and the cross conduit 154 and the extension conduit 147 are as shown in Figure 5. Screwed into the thread of the first vent valve hole 149 there is a cap 303 having a hexagonal, exterior portion 304, compatible with spanner. The cassette 303 has a threaded, coaxial tap hole 305 that is threadably engaged by a scraped portion of a poppet valve poppet 306. The inner part of the rod 306, marked with the reference number 307, moves freely inside the valve chamber 148. It is provided. At a point near the cap 303, with a seal mounting groove into which is placed a pair of Teflon backing rings 308, 309 and with an O-shaped ring 310 placed intermediately, made of a material suitable elastomeric The end of the rod 307 carries a hemispherical tip 311 compatible with a valve seat 311. In this manner, the tip 310 c / o operates with the valve seat 311 to selectively block or open the fluid passageway from the extension conduit 147. to the transverse conduit 154 and thence to the first vent outlet 155. The opposite, outer end of the rod 307 has attached thereto a hexagonal head compatible with a suitable spanner. Accordingly, the vent valve can be opened only or closed when using a suitable tool. The valve mounted in the second vent valve assembly hole comprised (Figure 7) of the second vent hole, threaded valve 153, and the second coaxial vent valve chamber 152, communicating with the short extension conduit 151 and with the cross conduit 156 (Figure 11) ending in the second vent outlet 157. The total arrangement of the second vent valve 302 is the same as that of the first vent valve described above, except for the length of the inner part 307a of the valve stem 306a. Therefore, the parts of the second relief valve 302 and the associated second valve mounting hole are not described in detail. Figure 22 shows the valves 301, 302 in an open state. Using a suitable wrench, the rod 306 can be rotated to cause an axial displacement of the rod 306 towards the seat 312 until the tip 311 sealingly engages the seat 312 to interrupt the flow of the fluid from the extension line 147 to the transverse conduit 154. The The described operation of the distributors is a typical operation of a five-valve distributor that is known per se and therefore does not have to be described. It will suffice to mention briefly that under normal circumstances, when a pressure differential is to be sensed or monitored in the pressure transmitter or the similar pressure processing apparatus, the lock valves mounted in the mounting holes 132, 136 or 232, 238 open allowing communication between the process inlet and the cavities. If the absolute pressure is going to be perceived, one of the block valves closes. If the pressure is equal on both sides of a diaphragm of the sensing device, the compensation valve opens. And vent valves are opened when one or both cavities in the instrument are to be released from pressure. Now reference should be made to the arrangement shown in Figure 23. While the drawings of the present specification are not to scale, an effort has been made to show the true relative size of the components shown in Figure 23. The distributor block is the same as that of Figure 23, as indicated by the reference numeral 125 which designates the front wall of the block. As described, the mounting hole of the compensating valve comprises the valve chamber 143 (Figure 6) and a threaded hole 144 in the front wall 125. The valve chamber 143 communicates via an opening in the valve seat 320 with the extension conduit 142 and via, an opening in the side wall of the valve chamber 143, with the oblique conduit 145. The threaded hole 144 threadably receives a cap 321 of a compensating valve referenced with the reference number 322 The compensating valve 322 and thus the mounting hole 144, 143 of the compensating valve are the type typically used in the valve manifold of this type. That is, the valve 322 is of the type in which a valve rod 323 is threadably received in the cap 321. The cap has an external thread 325 mounted in the mounted hole 144, as is well known in the art. The cap defines a packing chamber that receives a package 326 held in place and compressed by a packing packer 327 threaded on the outer end of the packing chamber and secured in position by a lock nut 328. The axially outer portion and packing interior 327 is threaded with a thread compatible with that on the outside of the stem 323. A pole cap 329 protects the threaded connection between the rod 323 and the packer 327. The inner end of the rod 323 is provided with a member 330 of closure, hemispherical compatible with the seat 320 so that operation of the valve 322 by the handle 331 results in the selective closing or opening of the fluid flow from the extension conduit 142, through the valve chamber 143 and of the oblique canal. Valve 322 is one of the many commercially available valves of the type with packing inside the cap. It can be readily appreciated that the valve 322 requires substantially more space on the exterior of the manifold (i.e., in the vicinity of the front wall 125) both in comparison to the total maximum length as a distance from the wall 125, and with respect to the total diameter. The vent valve 301 or 302, with the other part, requires a much shorter outside length and a smaller diameter, not mentioning that the selectively designed length of the valve chamber 184 or 152 can be used in the simplification of the structure of the conduits of the distributor by bringing the respective valve seat and the outlet orifice to a position where the connecting conduits do not need to be at a complex angle of a double oblique inclination with respect to the surface of the block.

Those skilled in the art will appreciate that there are additional embodiments that differ from those described, without departing from the scope of the present invention as set forth in the appended claims. For example, as one of the many variants, while the five-valve arrangement is preferred, it is not beyond the scope of the present invention to provide an arrangement where a vent valve mounting hole will be provided (and thus just a relief valve). Another easily conceivable variant is that where, in some installations, the relief valve structure used in the preferred embodiments could be used for other types of valves. Therefore, you want to protect by the patent letter. what may be issued in the present application all these modalities as fall clearly within the scope of the contribution to the technique.

Claims (15)

1. A valve manifold for use with a pressure determining apparatus, comprising, in combination with: (a) an integral body (120, 220) including a first surface section (121, 221), a second section of surface (122, 221) generally parallel with the first surface section (122, 221) and a peripheral section (123-126; 223-226) preferably quadrilateral, multilateral, extending between the first and second surface sections; (b) a process fluid inlet orifice means (127, 128; 227, 228) in the second surface section (122) and a process fluid outlet orifice means (138, 140) in the first surface section (121, 221), the process fluid outlet orifice means (138, 140) that is complementary to the inlet ports of an associated pressure determining apparatus; (c) a system of passages comprised of a plurality of passages (129-130-131-137; 128-133-134-139, etc.) which communicate for fluid the outlet inlet orifice means relative to each other; (d) a plurality of apparatus mounting holes (160-163; 258-261) provided in the first surface section (121, 221), and positioned around the periphery of the first surface section (121, 221) , preferably near the corner of the peripheral section, to receive the bolts that operatively secure the pressure determining apparatus to the first surface section (121, 221); (e) the mounting holes of the apparatus (160-163; 258-261) having axes generally perpendicular to the first surface section (121, 221), these axes defining sides of a reference prism having coplanar end with the first and second surface sections, at least some of the axes that are coincident with the corners of the reference prism; (f) a plurality of valve mounting holes (132, 136, 144, 149, 149, 153; 232, 238, 243, 305), each hole extending from a point in the peripheral section (123-126; 223-226) into the body, each hole of the valve assembly (132, 136 etc.) which includes an outer end portion, threaded in the peripheral section (123-126; 223-226) and a valve chamber in general cylindrical, coaxial (131, 135, 143, 148, 152, 231, 237, 243, 248, 253) defining an inner end portion of the hole, which forms a part of the system of passages; (g) each valve chamber including a valve seat coinciding with an outlet of an upstream section of a respective passage (130, 134, 145 etc.) in the respective valve chamber (131, 135, 143 etc.); (h) each valve chamber (131, 135, 143 etc.) which is further communicated through a hole provided in a sidewall thereof, with a downstream section (37, 139, 145 etc.) of the passageway respective; characterized in that the valve seat of each of the valve chambers (131, 135, 143, 148, 152, 231, 237, 243, 248, 253) is located within a space delimited by the reference prism.

2. The valve manifold according to claim 1, characterized in that (i) the manifold comprises a pair of vent outlet orifice means (155, 157; 250, 255) (ii) both exhaust outlet orifice means are placed in a second surface section (102), (iii) each exhaust outlet orifice means communicates for fluids with a communication hole provided in the side wall of its associated valve chamber (148, 152; 248, 253) near the venting valve seat therefrom, (iv) the venting valve chambers are both provided in the same of the peripheral walls, each defining part of one of a stopper of venting valve assembly holes, (v) the length of the relief valve chambers is larger than that of any of the remaining valve chambers (131, 135, 143, 231, 237, 243).

3. The dispenser according to claim 1, including two, three, four or five valve mounting holes (132, 136, 144, 149, 149, 153; 232, 238, 243, 305) and comprising exhaust outlet orifice means (155, 157, 250, 255), characterized in that the exhaust outlet orifice means (155, 157, 250, 255) are placed in the second surface section (122).

4. The dispenser according to claim 3, wherein the process fluid inlet orifice means is a pair of inlet orifices (127, 128) and the exhaust outlet orifice means (155, 157) is a pair of orifices. vent outlet, characterized in that the inlet holes (127, 128) have centers placed on a first reference line coinciding with the second surface section (122), and the centers of the exhaust outlet orifices (155, 157) are placed on a second reference line coincident with the second surface section (122) and which intersects the first reference line at generally straight angles, the point of intersection of the reference lines which is generally placed in a manner of the second surface section (122).

5. The dispenser according to claim 3, wherein the process fluid inlet orifice means is a pair of inlet orifices (227, 228) and the outlet outlet orifice means is a pair of exhaust outlet orifices ( 250, 255), characterized in that the inlet orifices (227, 228) have centers placed on a first reference line coincident with the second surface section (222), and that the exhaust outlet orifices (250, 255) they have centers placed on a second reference line coincident with the second surface section (222) and generally parallel with the first reference line.

6. The dispenser according to any of claims 2, 3, 4 or 5, wherein the peripheral section (123-126) comprises a plurality of generally flat peripheral walls. (123-126), one (125, 225) of the peripheral walls that are provided with a pair of parallel mounting holes (149,153), each relief valve chamber (148, 152; 248, 253) of the holes of valve assembly communicating for fluids, via a communication hole, with one end of a vent pipe (154, 156; 249, 254) the other end of the venting conduit communicating for fluids with a vent outlet respective (155, 157, 250, 255), characterized in that the axes of the relief valve chambers (148, 152, 248, 253) are also separated from the first surface section (121, 221) and that the orifice of respective communication is located near the valve seat of the exhaust valve chamber, respectively (148, 152, 248, 253).

7. The dispenser according to claim 6, as dependent on claim 4, characterized in that the relief valve chambers (148, 152) are of a different length, by which the communication holes are each at a different distance from one another. (125) of the peripheral walls.

8. The dispenser according to claim 2 or claim 7, wherein each venting valve mounting hole (149, 153) of the pair is provided with a valve assembly including a threaded valve rod (306, 306A) in a cap. (303) compatible with a threaded outer portion (149, 153), and having a valve closure member (311) at a free end of the rod (306), for coupling with the respective valve seat and a seal (310) for sealingly engaging the rod (306, 306A) characterized in that the valve assembly is of the type where the seal (310) is adapted to additionally couple by sealing the respective cylindrical valve chamber, the seal (310) which is placed at a location of rod (306, 306A) between the closure member and the cap (303), the cap that is devoid of a seal coupling with the rod and thus is of reduced overall diameter.

9. The compliance distributor according to any of claims 6, 7 or 8, characterized in that a third, preferably, a compensating valve mounting hole (143, 144) is provided in one (125) of the peripheral walls, the third valve mounting hole (143, 144): (a) which is generally parallel with the pair of relief valve mounting holes (149, 153); (b) which is positioned between the pair of vent valve mounting holes and a closer spacing from one (121) of the surface sections; (c) having a valve seat closer to one (125) of the peripheral walls than the valve seat of either of the pair of exhaust valve mounting holes (149, 153).

10, The dispenser according to claim 2 or 9, comprising two block valve mounting holes, provided one in each of the two peripheral, generally flat, additional walls (123, 124, 223, 224) of the body ( 120), characterized in that the additional peripheral walls (123, 124) are two peripheral, opposite, parallel walls different from one (125) of the peripheral walls.

11. A valve distributor according to any of the preceding claims, wherein the passages (129-130-131-137 etc.) are comprised of a plurality of sections of straight passages (129, 130, etc.) communicating with each other , with the orifice means and with the valve chambers, characterized in that, the passage sections (129, 130 etc.) are placed and arranged so that each passage section is parallel with at least one of the surfaces ( 121, 122; 221, 222) or the peripheral walls (123, 124, 223, 224) or the front and rear walls (125, 126; 225, 226), whereby the machining of the sections of passage

12. The valve distributor according to any of the preceding claims, characterized in that (a) the axes of the three valve mounting holes (132, 136, 144, etc.) are placed in a first reference plane parallel to the sections of surface (121, 122 etc.); and (b) the axes of the two remaining holes (149, 153) of the three valve mounting holes (144, 149, 153) are placed in a second reference plane parallel with the surface sections (121, 122; 221, 222) and they are separated from the first reference plane.

13. The valve manifold according to claim 12, characterized in that the two (149, 153; 248, 253) of the three valve mounting holes are exhaust valve mounting holes.

14. The dispenser according to claim 8, characterized in that an outlet end of the exhaust valve stem of the exhaust valve assembly away from the valve closure member is formed for coupling with a complementary branch or the torque induction tool of the valve. forces, easily removable, similar.

15. The dispenser according to any of the preceding claims, wherein the centers of the process fluid inlet orifice means (127, 128; 227, 228) and of the process fluid outlet orifice means (138, 140; 234, 240) are placed within a space delimited by the reference prism.