msn:
  You are here:home>product


Product Name: Slab Gate Valves
Product sort:  →
Product material:
 Product standard:
Hits: 12

  

SGV Series-Slab Gate Valves

The CNZDV Valves Model SGV is an advanced fabricated body design slab gate valve manufactured and tested to API-6D. The fabricated body allows for a wide selection of material choices. The floating slab gate uses the natural force of line pressure to obtain a dynamically tight downstream seal in high-pressure differential applications. Low-pressure sealing is accomplished with coil springs that energize the seat pushing it against the gate.

Ease of maintenance and versatility make the SGV the leading gate valve in the industry. The two-piece stem/common yoke simplifies operator mounting and conversions. The two-piece stem design allows different materials to be used in wetted areas while standard material is used for stem threads. Combined with the bolted packing retainer, the two piece stem allows quick operator and extension changes in the field with the valve under pressure. For valves with ribs, a new rib system has been developed to make painting and coating easier.

Available in line sizes 2" - 48", class 150-2500.

1.turdy stem roller bearing lower torque and minimize jamming or  sticking problems.
2.Flanged top yoke tube lends itself to easy adaptability for  any mode of operation.
3.All packing rings are located in yoke flange for better  service and dependability.
4.Bonnet to body yoke tube to bonnet connections are secured by  dual seals. Primary seal is established by flexible graphite  gasket with stainless steel anti-extrusion rings. Secondary  seal is established by metal-to metal
contact between the bonnet and body and bonnet and yoke tube.
5.Heavier valve body casting than comparable valves in its class.
6.Seat faces are protected from flow and extend the valve life.
7.Sealant injection fittings for emergency situations.
8.Full Bore through conduit design minimizes pressure drop and turbulence.
9.Spring loaded seat/floating gate combination provides low and high pressure seal
10.Seat faces are outside the flow stream in the fully open or closed position considerably extending seal life
11.Two-piece stem design simplifies motor operator mounting
12.Full thru-conduit port for passage of pigs, wipers, and scrapers
13.Internal pressure relief to upstream side
14.Secondary stem seal/packing injector
15.Top entry for inline maintenance
16.Double Block and Bleed
   

 
 
 
Copyright © 2008-2011 ZHEJIANG ZHONGDONG VALVE CO.,LTD. All Right Reserved. [Manager]