US3502300A - Diaphragm with tapered ribs - Google Patents

Diaphragm with tapered ribs Download PDF

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Publication number
US3502300A
US3502300A US563496A US3502300DA US3502300A US 3502300 A US3502300 A US 3502300A US 563496 A US563496 A US 563496A US 3502300D A US3502300D A US 3502300DA US 3502300 A US3502300 A US 3502300A
Authority
US
United States
Prior art keywords
diaphragm
ribs
valve
rounded
sides
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US563496A
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English (en)
Inventor
Derek John Harris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crane Process Flow Technologies Ltd
Original Assignee
Saunders Valve Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saunders Valve Co Ltd filed Critical Saunders Valve Co Ltd
Application granted granted Critical
Publication of US3502300A publication Critical patent/US3502300A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/123—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on the bottom of the fluid line

Definitions

  • a diaphragm for a flow control valve having a conical side opening in the valve body running tangentially into the valve bore and the diaphragm having a hollow conical body with a flat peripheral flange with two diametrically opposed ribs upstanding from the body and tapering in height and base width.
  • This invention relates to fluid controlling valves of the kind having a substantially straight through bore and a seating formed by an opening extending from one side of the valve casing, of generally tapering form running tangentially into the valve bore, the closure member being a diaphragm of shape corresponding to the seating, moulded in a form corresponding to the closed portion of the valve and clamped at its margin to the valve casing.
  • Valves of this kind are well known and a further development of such valve in which there is a markedly more rounded junction between the side and clamped margin of the diaphragm and in which this margin is not flat but continues the slope of the side through less steeply is also well known.
  • valve in order to give the diaphragm adequate strength with the necessary flexibility, it has been provided with a plurality, say six, of ribs on the back.
  • the compressor has been shaped to match the back of the ribs and not the diaphragm because the latter would involve grooving the compressor, while by pressing on the ribs rather than the diaphragm between the ribs, pressure is concentrated and a better seal made to the relevant part of the seating.
  • a diaphragm for a diaphragm type flow control valve having a conical side opening in the valve body running tangentially into the valve bore, said diaphragm comprising a hollow conical body rounded to hemispherical form at its apex and provided with a flat peripheral flange by which it is to be clamped in position in use, the concave interior surface of the body having two diametrically opposed ribs upstanding therefrom, such ribs tapering in height and base width to maxima at the base of the hemispherical portion of the body.
  • the ribs taper from the maxima to nothing at the clamped zone and are arranged to come at the sides when in place in the valves,
  • the ribs are made of trapezoidal cross section with inwardly curving sides, well rounded corners and fillets at the junctions with the rest of the diaphragm. It has been found that with this form of diaphragm not only is the production of scrap reduced,
  • valve is easier to open than with the known forms of diaphragm referred to above. Also that other things being equal, a tight closure can be made with rather less pressure, this easier closing being most marked at low line pressures.
  • the diaphragm of the present invention is preferably similarly dimensioned in regard to axial length.
  • FIGURE 1 is a cross section
  • FIGURE 2 is a plane view of FIGURE 1
  • FIGURE 3 is a detail section on the line III-III of FIG. 1.
  • the diaphragm illustrated comprises a conical portion 12 terminating at its apex in a hemispherically contoured part 13 to match the cross-section of the lower part of the valve bore.
  • the centre part is bounded by a transverse flat 14.
  • the mass of material thus formed provides material for the embedding of the head 15 of a screwed stud 16, by which attachment to the diaphragm is made.
  • the diaphragm has a sweeping curve 24 extending from the conical portion 12 towards the edge of diaphragm and in this particular example a circumferential rib 25 is provided which helps to ensure a tight seal when the diaphragm is clamped in the valve.
  • these ribs are of trapezoidal cross-section but sides are inwardly curved, the upper comers are well rounded and there is a good fillet joining each side at the base to the rest of the diaphragm.
  • a diaphragm for a diaphragm type flow control valve having a conical side opening in the valve body running tangentially into the valve bore, said diaphragm comprising a hollow conical body rounded to hemispherical form at its apex and provided with a flat peripheral flange by which it is to be clamped in position in use, the interior surface of the body having two diametrically opposed ribs upstanding therefrom, such ribs tapering in height and base width from maxima in the region of the hemispherical portion of the body to minima in the region of the flange, said diaphragm formed by moulding therein the ribs of trapezoidal cross-section with the convergent sides of the trapezium inwardly curved to facilitate release of the diaphragm from the mould in which it is formed, and, wherein the curvature of the convergent sides of the ribs is such that the top face of each rib is of substantially uniform width from end to end.
  • a diaphragm for a diaphragm type flow control valve having a conical side opening in the valve body running tangentially into the valve bore, said diaphragm comprising a hollow conical body rounded to hemispherical form at its apex and provided with a flat peripheral flange by which it is to be clamped in position in use, the interior surface of the body having two diametrically opposed ribs upstanding therefrom, such ribs tapering in height and base width from maxima in the region of the hemispherical portion of the body to minima in the region of the flange, said diaphragm formed by moulding therein the ribs of trapezoidal cross-section with the convergent sides of the trapezium inwardly curved to facilitate release of the diaphragm from the mould in which it is formed and wherein the curvature of the convergent sides of the ribs is such that the top face of each rib is of substantially uniform width from end to end, and where

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Valve Housings (AREA)
  • Reciprocating Pumps (AREA)
  • Diaphragms And Bellows (AREA)
  • Lift Valve (AREA)
US563496A 1965-07-26 1966-07-07 Diaphragm with tapered ribs Expired - Lifetime US3502300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31774/65A GB1090868A (en) 1965-07-26 1965-07-26 Diaphragm valves and diaphragms therefor

Publications (1)

Publication Number Publication Date
US3502300A true US3502300A (en) 1970-03-24

Family

ID=10328207

Family Applications (1)

Application Number Title Priority Date Filing Date
US563496A Expired - Lifetime US3502300A (en) 1965-07-26 1966-07-07 Diaphragm with tapered ribs

Country Status (4)

Country Link
US (1) US3502300A (en:Method)
DE (1) DE1550506C3 (en:Method)
GB (1) GB1090868A (en:Method)
NL (1) NL148394B (en:Method)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181151A (en) * 1977-03-17 1980-01-01 Cla-Val Co. Diaphragm valve
USD268048S (en) 1979-10-31 1983-02-22 Asahi Yukizai Kogyo Kabushiki Kaisha Diaphragm valve
USD268049S (en) 1979-10-31 1983-02-22 Asahi Yukizai Kogyo Kabushiki Kaisha Diaphragm valve
USD290640S (en) 1984-03-19 1987-06-30 Frigoscandia Contracting Ab Valve diaphragm
US6454243B2 (en) 2000-02-14 2002-09-24 The Meyer Company Springless seat cup
US20080121297A1 (en) * 2005-01-03 2008-05-29 Mark Indigne Stopcock Closure Plug

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2629621C3 (de) * 1976-07-01 1979-02-22 Clouth Gummiwerke Ag, 5000 Koeln Membran für Membranventil
ATA270879A (de) * 1978-05-13 1985-06-15 Wurzer Lothar Membran aus elastischem material und deren anordnung und betaetigung in zugeordneten gehaeusen
DE202020104788U1 (de) 2020-08-18 2020-11-18 Sartorius Stedim Biotech Gmbh Ventilblock zur einmaligen Verwendung in einem Bioprozess

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840339A (en) * 1953-05-13 1958-06-24 Saunders Valve Co Ltd Diaphragm valves and diaphragms therefor
US3021532A (en) * 1960-12-14 1962-02-20 Stanley B Gross Force cup

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840339A (en) * 1953-05-13 1958-06-24 Saunders Valve Co Ltd Diaphragm valves and diaphragms therefor
US3021532A (en) * 1960-12-14 1962-02-20 Stanley B Gross Force cup

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181151A (en) * 1977-03-17 1980-01-01 Cla-Val Co. Diaphragm valve
USD268048S (en) 1979-10-31 1983-02-22 Asahi Yukizai Kogyo Kabushiki Kaisha Diaphragm valve
USD268049S (en) 1979-10-31 1983-02-22 Asahi Yukizai Kogyo Kabushiki Kaisha Diaphragm valve
USD290640S (en) 1984-03-19 1987-06-30 Frigoscandia Contracting Ab Valve diaphragm
US6454243B2 (en) 2000-02-14 2002-09-24 The Meyer Company Springless seat cup
US20080121297A1 (en) * 2005-01-03 2008-05-29 Mark Indigne Stopcock Closure Plug

Also Published As

Publication number Publication date
DE1550506C3 (de) 1975-07-24
NL148394B (nl) 1976-01-15
NL6609947A (en:Method) 1967-01-27
GB1090868A (en) 1967-11-15
DE1550506A1 (de) 1969-10-09
DE1550506B2 (de) 1974-11-21

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