Focus On Triple Offset Butterfly Valve 


22 inch SS 304 butterfly valve

Model: D373w-150lb

Origin: Oubei, Wenzhou

Type: Wafer 

Specification: 22 inches

Valve body: CF8

Valve Disc: CF8

Valve Stem: F304

Sealing Material: RPTFE

Driving Mode: Worm Gear

product details

22 inch SS 304 butterfly valve is one of the most widely used Cr Ni stainless steel, which has good corrosion resistance, heat resistance, low temperature strength and mechanical properties. It is resistant to corrosion in the atmosphere. If it is in industrial atmosphere or heavily polluted area, it needs to be cleaned in time to avoid corrosion.

1、 Structure introduction

API standard butterfly valve adopts three eccentric structure, seat seal and soft seal ROTFE. RPTFE is also called reinforced polytetrafluoroethylene, which is a kind of material with good corrosion resistance. Our company can also produce SS304 + graphite, SS316 + graphite, or SS316 + PTFE, EPDM, NBR sealed butterfly valves.

Three eccentric butterfly valve features:
1. Short structure size, small volume, light weight, easy operation
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 22154692420

4、Material of main parts

Valve body: CF8
Butterfly plate: CF8
Stem: F304
Butterfly seal: RPTFE
Bracket: WCB
The default configuration, support is WCB, worm gear box is ductile iron, our company can also produce stainless steel support, stainless steel worm gear box butterfly valve according to customer demand.

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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