DN50 - DN300 Non Rising Resilient Gate Valves PN25 DIN-F4 / DIN-F5

PN25 DIN-F4/DIN-F5 Non Rising Resilient Seated Gate Valves DN50-DN300

PN25 Resilient Seated Gate Valve Gland Type

1. PRODUCT PROFILE

BS5163 Non-rising Stem Resilient Seated Gate Valve has many advantages against old fashioned metal seated gate valve. Lack of valve pocket for gate seat maintains smooth and unobstructed waterway; eliminates depositing of impurities which may cause ineffective shut-off and leaking from metal to metal contact in time. Resilient seat contact is easily and  perfectly maintained and this allows quick and perfect change of wedge without dismantling the valve from pipeline when the
rubber lining is worn out. In turn, when the metal-seated gate valve leaks, it should be returned to its factory for renewing and precise machining of metal seats, or it should be thrown away.

2. FEATURES

· Internally and externally coated with fusion bonded epoxy (FBE).
· Full and straight bore avoids turbulence, pressure loss and venturi effect.
· Back seal design allows for replacement of stem seals under operating pressure.
· Stem nut is separated from the wedge to avoid seizing-up.
· Unique gland seal design is differ from most of manufacturers.

· Low operating torque

· Good and clear body marking

· Online replaceable under full pressure with valve fully opened; Three o-rings protects upper stem from impurities entering from the water way

· Every valve be 100% tested and qualified before packmaterialing and delivery

3. STANDARD

· Design & manufacturing: BS5163

· Face to face: EN558-1 series 3,14,15

· Flanged ends: ISO7005-2, EN1092-2, DIN2501 PN10/PN16

· Inspection & testing: EN12266-1

4. TECHNICAL SPECIFICATION

· Working pressure: PN10 / PN16 Bar

· Size: 2″~12″ (DN50~300mm)

· Materials: cast iron, ductile iron

· Epoxy resin thickness: ≥250micron

· Applicable temperature: 0℃~+80℃

· Available with handwheel/square cap/gearbox/ electric actuator

5. APPLICATION

· Water supply system

· Waste water, sludge, sewage treatment industry

· Irrigation system

· Real estate industry

· Mining, steel industry

· Metallurgy plant, power plant

· Textile, pharmaceutical industry

· Food, pharmaceutical industry