Valve assembly for gas cylinder and pressure reducing valve used

Details Valve assembly for gas cylinder and pressure reducing valve used Valve assembly for gas cylinder and pressure reducing valve used

1998-09-18

2000-04-11

Recla, Henry J.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

13750525, F16K 3112

Patent

active

06047727&

ABSTRACT:
A stop valve (7) and a pressure reducing valve (8) are arranged in series with each other within a housing (3). A first check valve (11) is arranged in a gas charging passage (10) provided in parallel to the pressure reducing valve (8). The pressure reducing valve (8) is adapted so as to move a piston member (59) for opening and closing by a balance between a spring force for valve opening and a secondary pressure for valve closing. A first coned disc spring (F) urges the piston member (59) toward an opening direction. The first coned disc spring (F) is connected in series with a second coned disc spring (S). The second coned disc spring (S) is compressed by a pushing member (66) projecting from a cap member (61).

REFERENCES:
patent: 4354666 (1982-10-01), McHale
patent: 4499914 (1985-02-01), Schebler
patent: 5309945 (1994-05-01), Sakai et al.

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