IT1029978B - Gas valve with axially moving plunger - tapered end of plunger has O-rings controlling flow through plunger restriction
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Gas valve with axially moving plunger - tapered end of plunger has O-rings controlling flow through plunger restriction
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Publication number
IT1029978B
IT1029978BIT4849775AIT4849775AIT1029978BIT 1029978 BIT1029978 BIT 1029978BIT 4849775 AIT4849775 AIT 4849775AIT 4849775 AIT4849775 AIT 4849775AIT 1029978 BIT1029978 BIT 1029978B
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Application filed by Ewarts LtdfiledCriticalEwarts Ltd
Priority to IT4849775ApriorityCriticalpatent/IT1029978B/en
Application grantedgrantedCritical
Publication of IT1029978BpublicationCriticalpatent/IT1029978B/en
The valve has a rotary sleeve containing an axially movable plunger (30) whose tapered end (34) contains an axial passage (42) leading to radial outlets (40) opening between a pair of O-rings (36, 38). The plunger has a radially projecting pin (66) extending through a spiral groove in the sleeve so that rotation of the sleeves causes axial movement of the plunger. The tapered end of the plunger controls flow between a passage (18) and a lower passage and by adjusting the plunger so that the O-ring nearer the end of the plunger engages the inner surface of the passage a low flow rate can be produced, with gas flowing through the axial passage (42) and the radial outlets (40).
IT4849775A1975-03-061975-03-06Gas valve with axially moving plunger - tapered end of plunger has O-rings controlling flow through plunger restriction
IT1029978B
(en)