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: Lug 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°CButterfly Valve Conform to API 509, DIN 3202.
They 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"

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