Gate Valve  
    Product Name: Slab Gate Valve  
    Related Tags: gate valve,flat gate valve,flat gate,plate gate valve  
    Product introduction

    Cast and weld two structures with the body
    The seat ring uses the floating seat ring structure with O-seal ring sealed and pre-tightening force applied to have inlet and outlet dual-way sealed; and the open-close moment with this structure is 1/2 that of the common valves only, able to lightly open and close valves.
    The seat ring uses the sealing face inlaid with PTFE, so has dual seals of PTFE to metal and metal to metal, the PTFE sealing face also acts as removing the dirt on the wedge disc.
    For the valve with metal to metal seal, there is grease injector outside of it, grease gets into the sealing face through the injector and the seat ring to have the valve up to null leak.
    The wedge disc of the valve with flow guide hole is always fitted with the sealing face whether in full open or full close status to have the sealing face protected without being directly eroded by the medium so as to extend the duration.
    When fully opened, the valve’s channel is smooth and linear with an extremely small flow resisting coefficient and no pressure loss, and the pipeline can be cleaned with hair-ball through it.
    This valve uses the packing structure with the ability of self-seat, needs no contact adjustment, features very light open and close and a reliable seal. An assisting sealing grease injection structure is set in the packing to have the sealing performance absolutely reliable and get a true null leak, setting the problem for the packing place of universal valves to be easiest leak outwards.
    Automatic removal of the high pressure in the internal cavity when the valve is about to close, so as to ensure safety.
    Fully sealed structure leaves a good protective property, suitable for the requirement of 24 hour duty.
    An indication rod or viewing window is set with the valve to show the open-close condition.
    Applicable standards and specifications
    Design and manufacturing: ASME B16.34/API 6D
    Face to face: ASME B16.10/API6D
    Flanged ends: ASME B16.5
    Butt-welding ends: ASME B16.25, MSS SP44
    Inspection and test: API 6D
    Class: 150LB~900LB
    Size: 1”~40”
    Operating: gear box, pneumatic, electric
    Materials: A216 WCB, A351 CF8, CF8M, CF3, CF3M

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