Resilient Seated Gate Valve - F4, With Hand Wheel

     RESILIENT SEATED GATE VALVE

• Non-maintance design,inside and outside electrostatic epoxy resin powder coating,the valve can be installed under the ground directly.
• The valve adopts the back seal and the stem seal,those double seals can avoid any top leakage when installation.
• The customer can easily replace the top seal "O" rings under the pressure.
• The valve adopts flat bottom designing ensures no dead space and very little flow resistance.
• The wedge adopts bidirectional groove design ensures the best reliable seal.
• A set of seal pressure angle adopts gradual design.
• The pressured surface of setm adopts high strength self-lubricated materials,the valve can be opened and closed easily.
• The bonnet,body castings adopts equal thickness design to avoid the outside leakage by the stess function.

Sumary;
Flat bottom seat ring intergral with the body, inside and outside epoxy resin coating, wedge wholly bonded with rubber, three O ring sealing, these all insure excllent corrosion protection and reliable sealing capability. Upon request, the gate valve can be actuated by operating lever, hand wheel, electrial actuator and so on.
Unique Design:
Compact design: one-piece bonnet,non-rising stem.
Stem nut is separated from wedge,no seizing-up.
Flat bottom seat ring insure no dead space.
O ring design for stem back sealing leasds to maintenenance-free.
Excellent anti-corrosion protection:
Inside epoxy resin coating or vitreous enamel(upon request),outside epoxy resin
coating.
Socket head cap bolts,sealed with glue on the top.
Reliable health nature:
Epoxy resin coating complies with the GB/T17219
Wedge bonded with rubber for the health inspection.
Trims are made of stainless steel or bronze.
Scope of application:
Potable water supply,industrial fields.

Design standard:DIN EN 1172(DIN 3352)
Flange: DIN EN 1092-2(DIN2501, GB/T17241)
Face to face dimension:DIN EN558-1(DIN3202,ISO5752)
Testing stabdard: DIN12266-1(DIN3230.ISO5208)
Working temperature: NBR≤80℃
EPDM≤120℃

Technical characteristics

零 Main components and their materials