CN105181316A - PE ball valve test machine - Google Patents

PE ball valve test machine Download PDF

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Publication number
CN105181316A
CN105181316A CN201510575386.3A CN201510575386A CN105181316A CN 105181316 A CN105181316 A CN 105181316A CN 201510575386 A CN201510575386 A CN 201510575386A CN 105181316 A CN105181316 A CN 105181316A
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CN
China
Prior art keywords
ball valve
lid
test machine
movable sealing
inlet chamber
Prior art date
Application number
CN201510575386.3A
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Chinese (zh)
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CN105181316B (en
Inventor
王铁苗
王楠
王铁霞
Original Assignee
杭州欣卓科技有限公司
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Priority to CN201510575386.3A priority Critical patent/CN105181316B/en
Publication of CN105181316A publication Critical patent/CN105181316A/en
Application granted granted Critical
Publication of CN105181316B publication Critical patent/CN105181316B/en

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Abstract

The invention discloses a PE ball valve test machine. The PE ball valve test machine comprises a rack, wherein one side in the rack is provided with a fixed sealing cover, the opposite side of the side provided with the fixed sealing cover in the rack is provided with a moving sealing cover capable of translating towards the fixed sealing cover, the back side of the moving sealing cover is provided with a translation driving mechanism, at least one of the fixed sealing cover and the moving sealing cover is provided with a test air hole, the rack is further internally provided with a torque test mechanism, the torque test mechanism is arranged between the fixed sealing cover and the moving sealing cover, and the torque test mechanism comprises a sliding table sliding between the two sealing covers. The PE ball valve test machine solves problems of low ball valve test efficiency, inconvenient mounting and clamping and incapability in carrying out airtightness test and torque test simultaneously, and is further advantaged in that high ball valve test efficiency, convenient mounting and clamping and capability in carrying out airtightness test and torque test simultaneously are realized.

Description

A kind of PE ball valve test machine

Technical field

The present invention relates to ball valve test machine field, particularly relate to the PE ball valve test machine of a kind of double air tightness test and torsion-testing.

Background technology

Ball valve be gas or liquid communication time conventional opening and closing element, be generally used for gas ductwork and water conservancy transports two important industries, therefore, all need before dispatching from the factory to carry out sealing propertytest and torsion-testing, not so have larger potential safety hazard.

Prior art is comparatively traditional to the test method of ball valve, when carrying out air tightness test, usual employing sealing gasket or O-ring seal are placed in the outside at ball valve two ends, be clamped in ball valve two ends with the force application apparatus such as lifting jack or hydraulic cylinder simultaneously, thus sealing gasket or O-ring seal and ball valve two ends are formed seal, ball valve after whole sealing is immersed in the water, then passes into pressure gas toward ball valve inside and check its sealing property; When carrying out torsion-testing, usually directly adopt dial torque wrench, and can only eye observation, manually record numerical value.

Utilize and test with upper type, compare and consume manually, efficiency is extremely low, and corporate image is bad; Therefore, market occurs some integrate the Full-automatic tester of air tightness test and torsion-testing.

Summary of the invention

In order to solve, current ball valve air tightness test efficiency is low, clamping is inconvenient in the present invention, can not carry out the problem of air tightness test and torsion-testing simultaneously, proposes that a kind of testing efficiency is high, convenient mounting and clamping, can carry out the ball valve test machine of air tightness test and torsion-testing simultaneously.

To achieve these goals, the present invention is by the following technical solutions: a kind of PE ball valve test machine, comprise a stand, the inner side of described stand is provided with fixing seal lid, the offside that stand inside is provided with fixing seal lid side is provided with and to the movable sealing lid of fixing seal lid translation, can be provided with translational drive mechanism on rear side of movable sealing lid; A gland bonnet is had at least to be provided with test pore in described fixing seal lid and movable sealing lid; Described stand inside is also provided with torsion-testing mechanism, torsion-testing mechanism is between fixing seal lid and movable sealing lid, described torsion-testing mechanism comprises a slide unit that can slide between two gland bonnets, a motor, a torque sensor and a turnbarrel is provided with from lower to upper successively on the upside of described slide unit, be connected with torque sensor upper end bottom turnbarrel, torque sensor lower end is driven by motor and rotates; Described slide unit is provided with the locating rack of two location ball valves, two locating rack symmetrical mirror pictures are arranged, described locating rack upper surface is an arc surface of fitting with ball valve surface, each locating rack both sides are respectively hinged with an anchor ear arm, with two anchor ear arm one end on locating rack and locating rack hinged, the other end is provided with the snap close that can lock each other; Described stand is provided with some parallel polished rods, is provided with the slide block that can slide along polished rod, has at least on a polished rod and have balancing spring wedging ring to be located at slide unit both sides on the downside of described slide unit.

As preferably, be provided with one on front side of described movable sealing lid and enter valve head, enter inside valve head and be provided with test pore, enter on valve head lateral wall and be arranged with gas-flow closure circle; Be provided with one on rear side of described movable sealing lid and help sealing pneumatic cylinder, the described sealing pneumatic cylinder that helps comprises a cylinder body, dividing plate is provided with in described cylinder body, inner chamber of cylinder block is divided into ball valve inlet chamber and sealing power-assisted chamber by dividing plate, a power piston is provided with in described ball valve inlet chamber, described sealing power-assisted chamber is provided with one and helps packed-piston, and described power piston and helping between packed-piston is connected by a piston rod running through dividing plate; The sidewall of described ball valve inlet chamber is provided with the ball valve draft tube that the test pore that covers with movable sealing is communicated with; Ball valve inlet chamber is separated into direct inlet chamber and change inlet chamber by described power piston, and described direct inlet chamber is communicated with outside gas circuit; Described help helping to seal between pneumatic cylinder inner face and being provided with a returning spring of packed-piston and sealing side, power-assisted chamber, described sealing power-assisted chamber is provided with the cavity of returning spring with helping by one between gas-flow closure circle and seals tracheae and be communicated with.

As preferably, described enters location ring flat-plate or the locating groove that valve head is provided with gas-flow closure circle.

As preferably, described movable sealing lid is positioned at and is provided with sealing ring pad into valve head peripheral place.

As preferably, described fixing seal lid and movable sealing lid internally survey the wedging flange that surface is all provided with annular mutually.

As preferably, survey in the wedging flange that described fixing seal lid and movable sealing cover and be provided with sealing ring.

As preferably, described slide unit is erect and has a valve rod locating sleeve, turnbarrel is positioned at valve rod locating sleeve and surveys.

As preferably, survey in described valve rod locating sleeve upper shed and be provided with fillet or chamfering.

As preferably, described turnbarrel and torque sensor are for removably connecting, there is the counterbore of a ball-valve valve rod coupling turnbarrel upper end, and there is a polygonal socket lower end, and torque sensor upper end is a projection mated with turnbarrel lower end polygonal socket.

Therefore, the present invention has following beneficial effect: 1, clamping automatically, test, more convenient operation; 2, can carry out nothing and enter ability of swimming air tightness test, it is more convenient to test; 3, torsion-testing can be carried out simultaneously, enhance productivity.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is the structural representation of torsion-testing mechanism of the present invention.

The structural representation of the turnbarrel bindiny mechanism of Tu3Shi torsion-testing mechanism.

The structural representation of another angle of Tu4Shi turnbarrel bindiny mechanism.

Fig. 5 is the structural representation of movable sealing lid in embodiment 1.

Fig. 6 is the structural representation helping sealing pneumatic cylinder in Fig. 5.

Fig. 7 is the structural representation of movable sealing lid in embodiment 2.

Fig. 8 is the structural representation of embodiment 2 test mode.

1: stand; 2: translational drive mechanism; 3: movable sealing lid; 4: fixing seal lid; 5: torsion-testing mechanism; 6: slide unit; 7: motor; 8: torque sensor; 9: turnbarrel; 10: locating rack; 11: anchor ear arm; 12: polished rod; 13: balancing spring; 14: valve rod locating sleeve; 15: jack; 16: projection; 17: counterbore; 18: sealing ring pad; 19: gas-flow closure circle; 20: location ring flat-plate; 21: ball valve; 22: help sealing tracheae; 23: enter valve head; 24: test pore; 25: ball valve draft tube; 26: outside gas circuit; 27: help sealing pneumatic cylinder; 28: power piston; 29: cylinder body; 30: piston rod; 31: help packed-piston; 32: returning spring; 33: sealing power-assisted chamber; 34: dividing plate; 35: ball valve inlet chamber; 36: change inlet chamber; 37: directly inlet chamber; 38: wedging flange; 39: sealing ring; 40: snap close.

Embodiment

Below in conjunction with accompanying drawing and specific embodiments, the present invention will be further described.

Embodiment 1: see Fig. 1 to Fig. 6, a kind of PE ball valve test machine, comprise a square stand 1, described stand 1 inner right side is provided with a fixing seal lid 4, and left side is provided with a movable sealing lid 3, movable sealing lid 3 and fixing seal lid 4 are oppositely arranged, further, movable sealing lid 3 can to fixing seal lid 4 translation, for pinch seal ball valve 21 two ends, be provided with the translational drive mechanism 2 of movable sealing lid 3 on rear side of movable sealing lid 3, described translational drive mechanism 2 is cylinder or hydraulic cylinder; Described fixing seal lid 4 and movable sealing lid 3 are all provided with test pore 24, for carrying out the air tightness test of ball valve 21.

Described stand 1 inside is also provided with torsion-testing mechanism 5, torsion-testing mechanism 5 is between fixing seal lid 4 and movable sealing lid 3, described torsion-testing mechanism 5 comprises a slide unit 6 that can slide between two gland bonnets, slide unit 6 mechanism comprises the parallel polished rod 12 of three that stand 1 inner bottom surface is arranged, the slide block that can slide along polished rod 12 is provided with on the downside of slide unit 6, wherein, a polished rod 12 there is balancing spring 13 wedging ring to be located at slide unit 6 both sides, make the torsion-testing mechanism 5 on slide unit 6, when not by External Force Acting, all the time the centre position of polished rod 12 can be returned to, convenient operation personnel place ball valve 21.Be provided with a motor 7, torque sensor 8 and a turnbarrel 9 on the upside of described slide unit 6 from lower to upper successively, be connected bottom turnbarrel 9 with torque sensor 8 upper end, torque sensor 8 lower end is driven by motor 7 and rotates.Described turnbarrel 9 and torque sensor 8, for removably connecting, are convenient to the turnbarrel 9 changing different size, are adapted to different ball valves 21.Wherein, there is the counterbore 17 of a ball valve 21 valve rod coupling turnbarrel 9 upper end, and there is a quadrilateral jack 15 lower end, and torque sensor 8 upper end is a projection 16 mated with turnbarrel 9 lower end quadrilateral jack 15.6 four angles are supported with a padded platform by four root posts to described slide unit, and padded platform is provided with the locating rack 10 of two location ball valves 21; Two locating rack 10 symmetrical mirror pictures are arranged, described locating rack 10 upper surface is an arc surface of fitting with ball valve 21 surface, each locating rack 10 both sides are respectively hinged with an anchor ear arm 11, with two anchor ear arm 11 one end on locating rack 10 and locating rack 10 hinged, the other end is provided with the snap close 40 that can lock each other.When placing ball valve 21, first ball valve 21 is put on the arc surface of two locating racks 10, then two anchor ear arms 11 on each locating rack 10 are rotated around pin joint, around ball valve 21, finally lock snap close 40, hold fixing ball valve 21 tightly; Be provided with circular hole in the middle of padded platform, have alignment bearing in circular hole, be embedded outside alignment bearing in the middle of padded platform in circular hole, inner side is set on turnbarrel 9, vertically locates for turnbarrel 9.The padded platform of described slide unit 6 is also erect and has a valve rod locating sleeve 14, valve rod locating sleeve 14 is the cylinder of a vertical placement, both ends open, survey in valve rod locating sleeve 14 upper shed and be provided with fillet, be convenient to locate when ball valve 21 is placed, turnbarrel 9 is positioned at valve rod locating sleeve 14 and surveys.

Be provided with one on front side of described movable sealing lid 3 and enter valve head 23, entering valve head 23 is a horizontal right cylinder, the movable sealing lid 3 entering valve head 23 periphery place is provided with sealing ring pad 18, can be used in seal ball-valve 21 end face, enter inside valve head 23 and be provided with test pore 24, enter on valve head 23 lateral wall and be arranged with gas-flow closure circle 19, and enter the location ring flat-plate 20 that valve head 23 is provided with gas-flow closure circle 19, prevent gas-flow closure circle 19 from offseting, be provided with one on rear side of described movable sealing lid 3 and help sealing pneumatic cylinder 27, help sealing pneumatic cylinder 27 in right cylinder, the described sealing pneumatic cylinder 27 that helps comprises a cylinder body 29, cylinder body 29 bosom position is provided with a dividing plate 34, dividing plate 34 with help that to seal pneumatic cylinder 27 end face parallel, cylinder body 29 inner chamber is divided into ball valve inlet chamber 35 and sealing power-assisted chamber 33, a power piston 28 is provided with in described ball valve inlet chamber 35, described sealing power-assisted chamber 33 is provided with one and helps packed-piston 31, described power piston 28 and help the piston rod 30 running through dividing plate 34 by between packed-piston 31 to connect, the sidewall of described ball valve inlet chamber 35 is provided with the ball valve draft tube 25 be communicated with the test pore 24 on movable sealing lid 3, ball valve inlet chamber 35 is separated into direct inlet chamber 37 and change inlet chamber 36 by described power piston 28, and described direct inlet chamber 37 is communicated with outside gas circuit 26, described help helping to seal between pneumatic cylinder 27 inner face and being provided with a returning spring 32 of packed-piston 31 and sealing side, power-assisted chamber 33, described sealing power-assisted chamber 33 is provided with the cavity of returning spring 32 with helping by one between gas-flow closure circle 19 and seals tracheae 22 and be communicated with.When outside gas circuit 26 does not carry out air feed to direct inlet chamber 37, cut off by power piston 28 between direct inlet chamber 37 and ball valve draft tube 25, connect between change inlet chamber 36 and ball valve draft tube 25; When outside gas circuit 26 carries out air feed to direct inlet chamber 37, power piston 28 forward, after the interface that power piston 28 is moved past ball valve draft tube 25, connects between direct inlet chamber 37 and ball valve draft tube 25.

Described fixing seal lid 4 is consistent with movable sealing lid 3 structure.

When testing, first ball valve 21 is put on the arc surface of two locating racks 10, the middle valve rod of ball valve 21 down, the counterbore 17 aiming at turnbarrel 9 inserts to be placed, the central axis that ball valve 21 central axis and gland bonnet enter valve head 23 keeps overlapping substantially, then rotates, two anchor ear arms 11 on each locating rack 10 around ball valve 21 around pin joint, finally lock snap close 40, hold fixing ball valve 21 tightly; Start the translational drive mechanism 2 on rear side of movable sealing lid 3, movable sealing lid 3, toward fixing seal lid 4 direction translation, when movable sealing lid 3 is first with corresponding ball valve 21 end contact, promotes whole torsion-testing mechanism 5 and moves along slide unit 6; The valve head 23 that enters of two gland bonnets successively stretches into ball valve 21 two ends, and the sealing ring pad 18 entering valve head 23 periphery extrudes with ball valve 21 end contact, realizes sealing first; Then, outside gas circuit 26 is to direct inlet chamber 37 air feed helping sealing pneumatic cylinder 27, move in propulsion power piston 28, drive helps packed-piston 31 to move simultaneously, thus the air in sealing power-assisted chamber 33 is charged in gas-flow closure circle 19, gas-flow closure circle 19 is expanded and is close to ball valve 21 inwall, realize secondary seal.After the interface that power piston 28 is moved past ball valve draft tube 25, direct inlet chamber 37 is communicated with ball valve inlet chamber 35, and outside gas circuit 26 is by entering in ball valve 21, as test gas from ball valve draft tube 25 after direct inlet chamber 37.After test terminates, outside gas circuit 26 is lost heart step-down, in ball valve 21, pressure gas part Ke Yanyuan gets rid of from ball valve draft tube 25 on road, meanwhile, owing to there being the effect of returning spring 32 in sealing power-assisted chamber 33, packed-piston 31 is helped to retreat, in gas-flow closure circle 19, pressure reduces, lose sealing effectiveness, and then let out except pressure in ball valve 21, complete an air tightness test.

When ball valve 21 is fixedly clamped by movable sealing lid 3 and fixing seal lid 4, can not rock, be conducive to carrying out ball valve 21 torsion-testing, and when doing ball valve 21 torsion-testing, need to carry out under a certain pressure.Therefore, carry out torsion-testing doing in air tightness test process to intert, can automatic open-close ball valve 21, realize the switching that ball valve 21 tests cavity size, can torque data be recorded again, effectively improve production efficiency.When carrying out torsion-testing, drive torque sensor 8 and turnbarrel 9 to rotate by the motor 7 on slide unit 6, and then drive ball valve 21 valve rod to rotate, torque sensor 8 just can by record in torque data automatic transport to controller.

Embodiment 2: see Fig. 1 to Fig. 4, and Fig. 7, Fig. 8, the difference of the present embodiment and embodiment 1 is the structure changing fixing seal lid 4 and movable sealing lid 3, and other content is consistent.Fixing seal lid 4 described in the present embodiment and movable sealing lid 3 are plane, and two gland bonnets internally survey the wedging flange 38 that surface is all provided with annular mutually, and survey the sealing ring 39 being provided with silica gel and making in wedging flange 38.When two gland bonnets are to ball valve 21 translation, during pinch seal, wedging flange 38 and the end contact of ball valve 21, embedded by extruding and reach certain sealing effectiveness, then to be extruded with ball valve 21 end face by the sealing ring 39 inside wedging flange 38 and realize secondary seal.

Claims (9)

1. a PE ball valve test machine, comprise a stand (1), it is characterized in that: described stand (1) inner side is provided with fixing seal lid (4), the offside that stand (1) inside is provided with fixing seal lid (4) side is provided with and to the movable sealing lid (3) of fixing seal lid (4) translation, can be provided with translational drive mechanism (2) on rear side of movable sealing lid (3); A gland bonnet is had at least to be provided with test pore (24) in described fixing seal lid (4) and movable sealing lid (3);
Described stand (1) inside is also provided with torsion-testing mechanism (5), torsion-testing mechanism (5) is positioned between fixing seal lid (4) and movable sealing lid (3), described torsion-testing mechanism (5) comprises a slide unit (6) that can slide between two gland bonnets, described slide unit (6) upside is provided with a motor (7), a torque sensor (8) and a turnbarrel (9) from lower to upper successively, turnbarrel (9) bottom is connected with torque sensor (8) upper end, and torque sensor (8) lower end is driven by motor (7) and rotates;
Described slide unit (6) is provided with the locating rack (10) of two location ball valve (21), two locating rack (10) symmetrical mirror pictures are arranged, described locating rack (10) upper surface is an arc surface of fitting with ball valve (21) surface, each locating rack (10) both sides are respectively hinged with an anchor ear arm (11), with two anchor ear arm (11) one end on locating rack (10) and locating rack (10) hinged, the other end is provided with the snap close (40) that can lock each other;
Described stand (1) is provided with some parallel polished rods (12), and described slide unit (6) downside is provided with the slide block that can slide along polished rod (12), has at least on a polished rod (12) and has balancing spring (13) wedging ring to be located at slide unit (6) both sides.
2. a kind of PE ball valve test machine according to claim 1, it is characterized in that: described movable sealing lid (3) front side is provided with one and enters valve head (23), enter valve head (23) inner side and be provided with test pore (24), enter on valve head (23) lateral wall and be arranged with gas-flow closure circle (19), described movable sealing lid (3) rear side is provided with one and helps sealing pneumatic cylinder (27), described sealing pneumatic cylinder (27) that helps comprises a cylinder body (29), dividing plate (34) is provided with in described cylinder body (29), cylinder body (29) inner chamber is divided into ball valve inlet chamber (35) and sealing power-assisted chamber (33) by dividing plate (34), a power piston (28) is provided with in described ball valve inlet chamber (35), described sealing power-assisted chamber (33) is provided with one and helps packed-piston (31), described power piston (28) and helping between packed-piston (31) is connected by a piston rod (30) running through dividing plate (34), the sidewall of described ball valve inlet chamber (35) is provided with the ball valve draft tube (25) be communicated with the test pore (24) on movable sealing lid (3), ball valve inlet chamber (35) is separated into direct inlet chamber (37) and change inlet chamber (36) by described power piston (28), and described direct inlet chamber (37) is communicated with outside gas circuit (26), described help helping to seal between pneumatic cylinder (27) inner face and being provided with a returning spring (32) of packed-piston (31) and sealing power-assisted chamber (33) side, described sealing power-assisted chamber (33) is provided with the cavity of returning spring (32) with helping by one between gas-flow closure circle (19) and seals tracheae (22) and be communicated with.
3. a kind of PE ball valve test machine according to claim 2, is characterized in that: described enters location ring flat-plate (20) or the locating groove that valve head (23) is provided with gas-flow closure circle (19).
4. a kind of PE ball valve test machine according to claim 2, is characterized in that: described movable sealing lid (3) is positioned at and is provided with sealing ring pad (18) into valve head (23) peripheral place.
5. a kind of PE ball valve test machine according to claim 1, is characterized in that: described fixing seal lid (4) and movable sealing lid (3) internally survey the wedging flange (38) that surface is all provided with annular mutually.
6. a kind of PE ball valve test machine according to claim 5, is characterized in that: survey in the wedging flange (38) on described fixing seal lid (4) and movable sealing lid (3) and be provided with sealing ring (39).
7. a kind of PE ball valve test machine according to claim 1, is characterized in that: the upper setting of described slide unit (6) has a valve rod locating sleeve (14), and turnbarrel (9) is positioned at valve rod locating sleeve (14) and surveys.
8. a kind of PE ball valve test machine according to claim 7, is characterized in that: survey in described valve rod locating sleeve (14) upper shed and be provided with fillet or chamfering.
9. a kind of PE ball valve test machine according to right arbitrary in claim 1 to 8, it is characterized in that: described turnbarrel (9) and torque sensor (8) are for removably connecting, there is the counterbore (17) of ball valve (21) valve rod coupling turnbarrel (9) upper end, there is a polygonal socket (15) lower end, and torque sensor (8) upper end is a projection (16) mated with turnbarrel (9) lower end polygonal socket (15).
CN201510575386.3A 2015-09-11 2015-09-11 A kind of PE ball valves test machine CN105181316B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510575386.3A CN105181316B (en) 2015-09-11 2015-09-11 A kind of PE ball valves test machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510575386.3A CN105181316B (en) 2015-09-11 2015-09-11 A kind of PE ball valves test machine

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CN105181316A true CN105181316A (en) 2015-12-23
CN105181316B CN105181316B (en) 2017-11-03

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105738041A (en) * 2016-05-18 2016-07-06 宣月罗 Automatic valve test equipment
CN105758592A (en) * 2016-05-18 2016-07-13 宣月罗 Automated air impermeability testing device
CN105784285A (en) * 2016-05-18 2016-07-20 宣月罗 Automatic valve leak-checking device
CN105823605A (en) * 2016-05-18 2016-08-03 宣月罗 Device for automatically testing sealing performance of valve
CN105910769A (en) * 2016-05-18 2016-08-31 宣月罗 Automated leakage detection device
CN108844732A (en) * 2018-08-22 2018-11-20 邹凯 A kind of detection device of polyethylene ball valve
CN109596285A (en) * 2018-12-29 2019-04-09 黄晓亮 A kind of pipe joint gas leakage pre-detection device in place

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CN202362134U (en) * 2011-12-01 2012-08-01 机化阀门(沈阳)有限公司 Valve pressure and torque comprehensive testing device
CN203785881U (en) * 2014-03-28 2014-08-20 章荣生 Ball valve test machine
KR20140004740U (en) * 2013-02-14 2014-08-22 한전케이피에스 주식회사 Leak test device and method for close torque control moter operated parallel gate valve
CN203848989U (en) * 2014-03-28 2014-09-24 北京京燃凌云燃气设备有限公司 Detection apparatus
CN204556179U (en) * 2015-05-14 2015-08-12 杭州戴雷科技有限公司 Ball valve air tightness test machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202362134U (en) * 2011-12-01 2012-08-01 机化阀门(沈阳)有限公司 Valve pressure and torque comprehensive testing device
KR20140004740U (en) * 2013-02-14 2014-08-22 한전케이피에스 주식회사 Leak test device and method for close torque control moter operated parallel gate valve
CN203785881U (en) * 2014-03-28 2014-08-20 章荣生 Ball valve test machine
CN203848989U (en) * 2014-03-28 2014-09-24 北京京燃凌云燃气设备有限公司 Detection apparatus
CN204556179U (en) * 2015-05-14 2015-08-12 杭州戴雷科技有限公司 Ball valve air tightness test machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105738041A (en) * 2016-05-18 2016-07-06 宣月罗 Automatic valve test equipment
CN105758592A (en) * 2016-05-18 2016-07-13 宣月罗 Automated air impermeability testing device
CN105784285A (en) * 2016-05-18 2016-07-20 宣月罗 Automatic valve leak-checking device
CN105823605A (en) * 2016-05-18 2016-08-03 宣月罗 Device for automatically testing sealing performance of valve
CN105910769A (en) * 2016-05-18 2016-08-31 宣月罗 Automated leakage detection device
CN105823605B (en) * 2016-05-18 2018-05-01 盐城旭东机械有限公司 A kind of equipment of automatic test valve tightness
CN105758592B (en) * 2016-05-18 2018-05-18 广东堭基管道系统有限公司 A kind of automatic air tightness testing device
CN105910769B (en) * 2016-05-18 2018-06-05 佛山市迅科管道探测有限公司 A kind of automation leakage detection apparatus
CN105784285B (en) * 2016-05-18 2018-06-08 江苏盐电阀门有限公司 A kind of automation valve leak-checking equipment
CN108844732A (en) * 2018-08-22 2018-11-20 邹凯 A kind of detection device of polyethylene ball valve
CN109596285A (en) * 2018-12-29 2019-04-09 黄晓亮 A kind of pipe joint gas leakage pre-detection device in place

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