Focus On Triple Offset Butterfly Valve 


150lb-20 inch API standard wafer butterfly valve metal hard seal polished rod butterfly valve with is05211 platform

Model: D073h-150lb

Origin: Oubei, Wenzhou

Type: Wafer Type

Specification: 20 inches

Material: WCB

Valve Body Material: WCB

Valve Disc Material: CF8

Valve Stem Material: f304

Sealing Material: SS304 + graphite

Driving Mode: Polished Rod

product details

150lb-20 inch API standard wafer butterfly valve metal hard seal polished rod butterfly valve with is05211 platform adopts three eccentric design, with simple structure and convenient operation. It is widely used in water conservancy, petroleum and other industries.

1、 Structure introduction

API standard butterfly valve adopts three eccentric structure. The valve seat is sealed by metal multi-layer hard seal structure, which is usually the layer of metal and graphite,For example, 304 + graphite and 316 + graphite can also be made into PTFE, rptfe and ppl,EPDM, NBR, etc

Three eccentric butterfly valve features:
1. Short structure size, small volume, light weight, easy to operate
2. Using the whole shaft mechanism, the butterfly plate has high strength and large flow area
3. The unique three eccentric design reduces the friction loss of the seal and greatly prolongs the service life
4. Metal hard seal is resistant to high temperature, low temperature and high pressure, and has a wide range of applications

2、Relevant standards of API standard butterfly valve

Design and manufacture: API 609
Structural length: API 609
Connecting flange: ASME B16.5
Inspection and pressure test: API 598,
Any valve produced by our company is pressed in strict accordance with the pressure test standard, and the zero leakage butterfly valve is allowed to leave the factory only after the pressure is qualified.

Shell strengthSealing strength of high pressure waterAir seal strength

Under the above pressure, the zero leakage can be achieved.
Accept the sampling and full inspection of the third party quality inspection unit entrusted by the customer and the end customer, but explain to us in advance

3、Detailed connection size

Nominal pressureNominal sizeStructural lengthDrilling center distancediameter of flange holesNumber of flange holes
150LBNPS 20127635420

4、Material of main parts

Body: WCB
Butterfly plate: CF8
Stem: f304
Butterfly seal: SS304 + graphite
Bracket: WCB

5、About our company

Tkok Valve  is a professional high quality butterfly valves manufacturers, focusing on research and development of butterfly valve series products.
The butterfly valves produced by Tkok Valve, both the valve body and valve disc all use designed casting molds by Tkok Valve company,not use the foundry no matter the wall thickness of the valve body,flange thickness and face to face dimensions,all can meet the requirement of relevant standard.
TKOK VALVE mainly produce eccentric butterfly valves,high performance butterfly valves,and also have good supply for the centerline butterfly valves and fluorine-lined butterfly valves.

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