Title:
ADJUSTMENT VALVE
Document Type and Number:
WIPO Patent Application WO/2006/025466
Kind Code:
A1
Abstract:
[PROBLEMS] An adjustment valve that enables easy flow regulation, that can be remotely operated, that has excellent anti-corrosion characteristics, that is compact, and whose cost can be reduced. [MEANS FOR SOLVING PROBLEMS] A first diaphragm (4) is integrally constructed from an installation section (19) fitted to a lower section of a rod (7), a joining section (31) to which a valve body (5) is fixed, a thin film section (20) extending in a radial direction from a shoulder section (18), a thick wall section (21) continuous to the thin film section (20), and a seal section (22) provided at a peripheral edge of the thick wall section (21). On the other hand, a second diaphragm (6) is integrally constructed from a thin film section (25) having a center hole (23) and extending in the radial direction from a thick wall section (24) in the periphery of the center hole, and from a seal section (26) provided in the peripheral edge of the thick wall section (24). The second diaphragm (6) is held and fixed at a shoulder section (28) of the rod (7) by a diaphragm hold-down member (8) penetrating the center hole (23), a lower section of the rod (7) is provided in a loose fit in a through hole (15) in the bottom of a cylinder (2), and the rod (7) is supported by a spring (9) fitted between a step section (34) of the cylinder (2) and the lower surface of the shoulder section (28) of the rod (7).
Inventors:
YAMAMOTO TAKASHI (JP)
Application Number:
PCT/JP2005/015941
Publication Date:
March 09, 2006
Filing Date:
August 31, 2005
Export Citation:
Assignee:
ASAHI ORGANIC CHEM IND (JP)
YAMAMOTO TAKASHI (JP)
YAMAMOTO TAKASHI (JP)
International Classes:
F16K7/16; F16K1/48; F16K7/17
Foreign References:
| JPS5634058U | 1981-04-03 | |||
| JP2004038571A | 2004-02-05 | |||
| JP2001153239A | 2001-06-08 | |||
| JPS582434U | 1983-01-08 | |||
| JPH05346185A | 1993-12-27 | |||
| JPH05240370A | 1993-09-17 |
Attorney, Agent or Firm:
ETO LAW & PATENT OFFICE CORP. (1-23 Asahi 1-chome, Miyazaki -city Miyazaki 03, JP)
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