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: High Performance 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: Double-Eccentric Sealing Valve Stem: Normal Working Temperature: Medium Temperature (120°CButterfly Valve Conform to API 509.
They are tested according to API 598, and marked as per MSS SP-25.

1. Construction is as follows:

- Double or Triple Eccentric

- Single Type Body

- Renewable Sealing Ring

- Fire Safe Design

- Anti-static Design

- Uni-direction or Bi-direction

- Butt Weld Ends to ASME B16.25

- 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	WCB	LCB	WC6	CF8	CF8M	CF3	CF3M
Disc	WCB	LCB	WC6	CF8	CF8M	CF3	CF3M
Stem	F6a	F304	F6a	F304	F316	F304L	F316L
Seat/Seat Ring	PTFE/RPTFE/NYLON/DEVLON/PEEK or METAL
Packing	Graphite/PTFE
Gasket	SS304+Graphite/SS304+Graphite
Bolts/Nuts	B7/2H	L7/4	B16/4	B8/8	B8M/8M	B8/8	B8M/8M
Suitable Medium	W.O.G etc.			HNO3, CH3OOH etc.
Suitable Temperature	-29~425 °C	-46~340 °C	-46~340 °C	-196~427 °C	-196~427 °C	-196~427 °C	-196~427 °C

3. Normal Pressure Rating
PN10~PN64, CLASS150~600

4. Normal Size Range
DN50~DN1800, 2"~72"

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Product Categories : Butterfly Valve > High Performance Butterfly Valve