>Type: “MODEL B” Type Gate Valve
>The MODEL B gate valve is a bidirectional  valve that utilizes a slab gate and floating seats to provide sealing in a wide variety of applications. This valve is available at 2000 and 20000 psi working pressures and can be supplied in sizes up to 4 1/16. Nonrising stem has back seating capability allowing packing and stem bearings to be replaced under pressure. Shear pin on stem for over-torque prevention. Floating seats and gate provide metal-to-metal, gate-to-seat and seat-to-body seals. Body cavity is filled with grease to prevent accumulation of foreign materials or hydrates. one safety-capped grease fitting provided on the bonnet so that grease can be added at any time. Seats can be easily replaced on-line; solid one-piece slab gate; metal-to-metal bonnet seal. Full bore/thru-conduit flow and no discontinuities at sealing surfaces minimize pressure drop. Stem packing is spring-loaded  nonelastomeric  material. Handwheel attached with quick-release clip pin. Forged valve body and bonnet.