Product Description Model NO.: D71 Connection Form: Wafer Seal Form: Force Sealed Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa) Material of Seal Surface: Soft Sealed Characteristic: Concentric Butterfly Valve Pre-Temp. Rating: Asme B16.34 Ends Connection: Wafer, Lug or Flanged Certificate 1: Dnv CE 0575 Certificate 3: API 600 Trademark: VATAC/OEM Origin: China Driving Mode: Manual Structure: Centre Sealing Valve Stem: Normal Working Temperature: Medium Temperature (120°CThey are tested according to API 598, and marked as per MSS SP-25.

1. Construction is as follows:

- Concentric Type

- Single Type Body

- Soft Seated

- Double Half Stem

- Through Stem With Pin

- Uni-direction or Bi-direction

- Flanged Ends to ASME B16.5

- Wafer or Lug Suit to Flanged(ASME B16.5 or B16.47)

2.  Main Part & Materials

Part Names	Part Materials
Body	Cast Iron			Ductile Iron
	A126 B	GG25	FC 20	A536	A395	GGG40	GGG50
Disc	Ductile Iorn/CF8/CF8M/CF3/CF3M/Alum-Bronze
Stem	SS410/SS420/SS416/SS304/SS316/Monel
Seat/Seat Ring	NBR/EPDM/PTFE
Packing	Graphite/PTFE
Gasket	SS304+Graphite/SS304+Graphite
Suitable Medium	Water, Waste Water, Sewage
Suitable Temperature	-29~150 °C

3. Normal Pressure Rating
PN6~PN16, CLASS150

4. Normal Size Range
DN50~DN1400, 2"~56"

Contact us if you need more details on Wafer Type Concentric Butterfly Valve. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Cast Iron Concentric Butterfly Valve、API509 Concentric Butterfly Valve. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Butterfly Valve > High Performance Butterfly Valve