High Performance Wafer Butterfly Valve

Short Description:

• Excellent durability of seat part and low operating torque by non-rubbing characteristics with triple offset construction.
• Bi-directional zero leakage service by resilient metal sealing and torque seating.
• Unrestricted selection of face to face dimensions for API, ASME (ANSI), BS, ISO, etc. and perfect interchangeability of gate, ball, plug, high performance butterfly, and other valves.
• Low emission by quarter turn construction and good performance at automation by virtue of low operating torque and low cost.

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Product Detail

Product Tags

Body

• The valve body shall be one piece cast or fabrication.
• The body can be supplied with different types of materials in wafer, lug, or flanged and butt welding end connections to satisfy all installation requirements.

Body Seat

• The valve seat shall be integrated with the body.
• Stellite or stainless steel shall be applied on the seating surfaces of valve body.
• The valve seat is designed for inclined cone to ensure non-rubbing, non-jamming, bi-directional shutoff, and zero leakage.

Technical Specification

Structural formation	Single eccentric structure/double eccentric structure / three eccentric structure/ variable eccentric structure
Design reference	CJ GB JB	API
Driving manner	Hand - operated, worm wheel & worm screw pneumatic operated, Electric - driving
Design standard	GJ/T 216 GB/T 12238 JB/T8527	API 609 MSS.SP - 68
Face to face	GB/T 12221	ASME B16.10 API 609 MSS.SP - 68
Flanged ends	JB/T 79. JB/T 82 BG/T9113 GB/T 17241.6	ASME B16.5 ASME B 16.47
Test & inspection	GB/T 13927 JB/T 9092	API 598

Note: The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.

Major Parts Material Form

NO.	Part name	Materials
1	Body	WCB.CF8 CF8M CF8C CF3 CF3M LCB、QT450-10
2	Stem	12Cr13.20Cr1306Cr18Ni9Ti06Cr18Ni12Mo2Ti
3	Disc	WCB+F4WCB+Stainless steel composite partsQT450-10+NBR WCB+F6CF8CF8M、QT450-10+EPDM
4	Packing seat	20Cr13
5	Packing	Graphite
6	Stuffing cover	WCB.CF8 CF8M
7	Yoke	WCB.CF8 CF8M CF3 CF3M
8	Worm device

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