PN10 Double Disc Fire Protection Resilient Gate Valve

Double Disc Water Supply Fire Protection Resilient Seat Gate Valve
 

Water Supply Gate Valve Specifications:

Water Supply Gate Valve 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.

Water Supply Gate Valve features:
 
Resilient seat gate valves are employed in the transport of clean water.
 
The valve gate or closure member is typically in the form of a wedge made of cast iron material
so as to be sufficiently rugged so as to be suitable for high pressure and high flow applications.
 
In a resilient seat gate valve, the outer surface of the valve wedge is coated with an elastomeric
material so as to offer a bubble-tight seal even at elevated operating pressures.
 
The valve wedge is operated by turning a threaded stem so as to advance or retract the valve
wedge within the waterway of the valve housing.
 
Upon valve closure, the resilient material on the edge forms a bubble-tight seal with the internal
surface of the valve body. Dirt or other contamination in the valve operating system can lead to
incomplete sealing of the wedge or other malfunction.

 
Water Supply Gate Valve 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