Improvements in or relating to valves for steam and other fluids

Abstract

Abstract 587,597. Valve closure members. ENGINEERING SPECIALISTS, Ltd., GRAINGER, J. E., and CRAIG, G. W. Oct. 23, 1944, No. 20480. [Class 135] In a valve of the kind having a lift member A with a hollow ported cylindrical extension or piston C projecting into a stationary guide sleeve D having a seating face E co-operating with a corresponding face B on the lift member, a rib E<1> on the guide projects into a groove B<1> in the lift member, a rib B<2> on the lift member projects into a groove E<2> in the guide, both, grooves and guides lying' within the seating surfaces B, E and the whole of the area of the port C<1> in the piston lying below the rib B<2>. More than one port C<1> may be provided and these may be open at the lower end. In a modification, the surface E is chamfered. Specification 201,809, [Class 135], is referred to.

Inventors

No inventors recorded.

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