large size EPDM seat ductile iron gate valve
large size EPDM seat ductile iron gate valve,Resilient Non Rising Stem Gate Valve
large size EPDM seat ductile iron gate valve,Resilient Non Rising Stem Gate Valve
Resilient Non Rising Stem Gate Valve
BRIEF INTRODUCTION:
The non rising stem gate valve, the whole body of strobe is treating with rubber to redeem
distortion, and reaching the good seal finally. To conquer the phenomenon such as badness
seal, slack , rustiness and soon. Saved the fixing space effectively. This valve widely applied in the liquid pipes for opening or closing fixing in such water, sewage disposal, electric power, energetics pipe , chemical, shipping, energy sources etc.
FEATURES
⊙Shot-blasting
protective surface finished by shot-blasting and the surface is smooth and neatness.
⊙Flatting seat
Smooth continuous bore way without seating recess, it is not easy to get impurity pilled up.
Making the liquid straightway.
⊙Treating with rubber
Both inner and outer are coated with advanced knowledge of rubber vulcanization then making
sure of the elasticity of rubber ,and make sure the exact geometry dimension. Rubber and ductile cast iron valve hand together hardly. This can avoid fall-off due to long-term use.
⊙Anti- corrosion
Both inner and outer are coated with non-toxic powder epoxy resin to strengthen the capacity of Corrosion resisting and raise the quality of water supply.
⊙Ruggedization
The older ductile iron valve is easy to rupture after being impacted by nonego. It can stop
rupture depend on the good mechanics capability of ductile iron .
⊙Three “○” sealed ring
With the three “O” – rings, the leakage can be greatly reduced and the “O” – ring can be
replaced under this condition with pressure and without stopping water. The thrust axletree
reduces the frictional resistance and lowers the operational torque. And it can be switch seal
ring without opening and closing.
⊙Rigid round body
The body is founded minutely, the rigid geometry size ensure inner sealing of valve without any process.
⊙Light weight
This body is made of ductile iron, it is 20%-30% lighter than the olds. Easily to fixing and
servicing.
TECHNIC CRITERION
Nominal pressure:1.0~1.6MPa
Applicable medium: water, sewage, oil, gas etc.
Applicable temperature:≤120℃
Main material of valve: ductile iron、iron.
APPLICABLE STANDARDS
⊙American Standard
Design to ANSI/AWWA C509
Face to face dimension to ASME B16.10-2000(ISO 3 series)
Flange and drilling To SME/ANSI B16.42-1998
⊙British Standard
Design to BS5163、BS5150
Face to face dimension to BS5163(ISO 3series、ISO19 series)
Flange and drilling To BS4504 part1(EN1092)
⊙Germany Standard
Design to DIN3352
Face to face dimension to DIN3202(F4:ISO 14 series;F5: ISO 15 series)
Flange and drilling to BS EN1092