Piston Valve

  Tank Bottom Valve
  Multi-way Valve
  Gate Valve
  Slide Valve
  Globe Valve
  Ball Valve & Plug Valve
  Butterfly Valve
  Check Valve
  Piloted Safety Valve
     
     
   
  法国(贵聪)






  Application FieldsPetrochemicals    General chemicals     Plastics and polymers    
Fine chemicals    Nuclear and navy   Cryogenic service    Other applications
Gate Valve
GUICHON VALVES manufacture gate valves in welded construction, mainly for in-line on/off service with liquids, gases or powdery medium.

Their double disc arrangement with ball and socket ensure very good tightness performance and their full bore construction guarantees maximum flow. For higher working pressures, the parallel seated type - free expansion discs - offers optimum operation.
 
 
Various optional arrangements are available : 
  • double spindle tightness with bellows and packing (type 709)
  • special seat for complete flow out of viscous mediums on vertical lines (type 702)
  • heating or cooling jacket
  • extended stem for cryogenic service (types 704 and 707)
  • bonnet with cooling ribs (type 705)
  • hard faced seating surfaces

Operation

  • handwheel, with manual gear if required
  • pneumatic, electric
  • hydraulic actuator

Materials
These valves can be manufactured in a wide choice of stainless steels and special alloys available for fabricated (welded) construction.

Range
Size 3/8” to 48”                                               150 to 2,500 Lbs
DN 10 to DN 1200                                             PN 10 to 400

Product
 

Double disc gate valve
Type : 700, 720, 750

  • Fabricated construction 
  • Size 1/2 in. to 36 in., class 150 to 2,500
  • Stainless and duplex steels, nickel alloys and special alloys
 

Polymer gate valve
Type : 702, 722, 752

  • Fabricated construction
  • DN 15 to 250, PN 10 to 63, stainless steel
  • Installation on vertical line
  • Upstream tightness
  • Fully jacketed
 

Parallel seated gate valve
Type : 706, 726, 756

  • Fabricated construction
  • Size 1 in. to 16 in., class 150 to 600 Lbs
  • Stainless and duplex steels, nickel alloys, special alloys
 

Bellow sealed gate valve
Type : 709, 729, 759

  • Fabricated construction
  • Size 1/2 in. to 12 in., class 150 to 300lbs
  • Stainless and duplex steels, nickel alloys, special alloys