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Lightweight Resilient Seated Gate Valve Stainless Steel Bonnet Bolts

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Good quality Cast Steel Gate Valve for sales
Good quality Cast Steel Gate Valve for sales
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Lightweight Resilient Seated Gate Valve Stainless Steel Bonnet Bolts

China Lightweight Resilient Seated Gate Valve Stainless Steel Bonnet Bolts supplier

Large Image :  Lightweight Resilient Seated Gate Valve Stainless Steel Bonnet Bolts

Product Details:

Place of Origin: Shanghai , China
Brand Name: OEM
Certification: WRAS / UL / CE / FM / ISO 9001
Model Number: Z45X

Payment & Shipping Terms:

Minimum Order Quantity: 1 sets / pcs
Price: USD 10 ~ 10,000 /pcs
Packaging Details: ruggedization plywood case suit for sea delivery and protect the goods
Delivery Time: within 25 days after payment
Supply Ability: 99,000 pcs / month
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Detailed Product Description
Name: Resilient Seated Gate Valve Pressure: PN 16 , PN25
Feature: Lightweight Temperature: -20 ~ 120 C
Body: DI GGG 50, Cast Iron GG25 Wedge: Iron Coating EPDM / NBR
Flange: DIN 3352 , JIS 10 K, EN 7005.2 Test: Test Strength By 2.4Mpa

Lightweight Resilient Seated Gate Valve Stainless Steel Bonnet Bolts

 

Resilient Seated Gate Valve Design features:

 

Spindle’s gaskets O-ring - “DRY THREAD” - replaceable under pressure.


Stainless steel spindle with rolled thread and bearing.


Total sufrace rubbered wedge with replaceable spindle nut.

 

Resilient seated gate valve to EN 1074-1 and 2 / EN 1171, with WRAS approved EPDM
rubber parts.

 

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.

 

Another object of the present invention is to provide a resilient seat gate valve having an

improved wedge operator system which readily overcomes the deleterious effects of contamination introduced either during construction or entrained within product carried to the valve.

 

These and other objects of the present invention which will become apparent from studying the

appended description and drawings are provided in a valve arrangement, that comprises a valve

housing that defines a water passageway and a valve seat within the valve passageway.

 

A valve wedge disposed within the housing passageway moves along a direction of operation

between a closed position in contact with the valve seat to block flow of water through the valve

passageway and an open position allowing flow of water through the valve passageway.

 

A pair of spaced apart tracks are disposed within the valve housing on either side of the wedge

and extend along the direction of operation. A pair of opposed wings carried on the valve wedge,

travel in each track. A valve stem coupled to the valve wedge moves the valve wedge in opposite reciprocating directions between valve open and valve closed positions.

 

A. Stem sealing


Three independent stem seals offering triple safety:


•  A NBR wiper ring protects against dirt from outside.


•  A polyamid bearing with 4 NBR O-rings protects against galvanic corrosion.


• An EPDM rubber manchette sealing acts as the main hydraulic seal to the flow.


B. Body/bonnet connection


The unique assembly of the valve body and bonnet ensures a durable tightness:


•  A round rubber bonnet gasket fits into a recess in the valve bonnet preventing it

   from being blown out by pressure surges.


•  The stainless steel bonnet bolts are countersunk in the valve bonnet, encircled

    by the bonnet gasket and sealed with hot melt. Thus there is no risk of corrosion

    as the bolts are not exposed to the medium or soil.

 

C. Wedge nut


The fixed, integral wedge nut reduces the number of movable valve parts thus

minimizing the risk of corrosion and malfunction. The wedge nut is made of
dezincification resistant brass with lubricating abilities providing optimum compatibility

with the stainless steel stem.

 
Resilient Seated Gate Valve Specifications:

 

NO

Part name

Material

1

Body

Ductile cast iron

2

Wedge

Ductile cast iron + EPDM

3

Stem nut

ZCuAl10Fe3 Gunmetal

4

Gasket

EPDM

5

Bonnet

Ductile cast iron

6

Gland gasket

ZCuAl10Fe3 Gunmetal

7

Stem

2Cr13  S.S.x 20Cr13

8

Gland

Ductile cast iron

9

Rubber wiper

EPDM/NBR

10

Hand wheel

Ductile cast iron

 
 

Resilient Seated 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 . 

 

Applications : 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.

 

 

Lightweight Resilient Seated Gate Valve Stainless Steel Bonnet Bolts       

 

Contact Details
Shanghai kangquan Valve Co. Ltd.

Contact Person: Mr. Steve

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