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Cast Iron Centre Sealing Wafer Butterfly Valve

Cast Iron Centre Sealing Wafer Butterfly Valve

Butterfly valve  is used for isolating or regulating  flow   and its function allows for quick shut off. There are many different kinds of butterfly valves, each adapted for different pressures and different usage in the industry.
Product Details

Flanged Center Line Type Rubber Lining Butterfly Valve

Butterfly valve  is used for isolating or regulating  flow   and its function allows for quick shut off. There are many different kinds of butterfly valves, each adapted for different pressures and different usage in the industry.


Main Features:
The turning center of the butterfly plate is on the center line of the valve body and the sealing face section of the butterfly plate. In closing, the ex-circle sealing face of the butterfly plate will extrude the valve seat made of synthetic rubber, generating elastic deformation on the seat to form an elastic force used as a sealing specific pressure so as to guarantee the tightness of the butterfly valve.


Product Description

1) Design and manufacture standards:
A) Wafer and lug: API 609, DIN3354
B) Flange and weld: BS5155 / EN598

2) Inspection and test standards: API 598, DIN3230, BS5146

3) F-to-F/E-to-E:
A) Wafer and lug: API609, DIN3202 K2
B) Flange: ISO 5752

4) End flange dimension: ASME B16.5 (for NPS<24"), ASME B16.47 series B,
API605, ASME B16.47 series A, MSS SP-44 (for NPS>24"), or BSEN 1092

5) Top flange: ISO5211

6) Connecting: Wafer, lug, flange, weld

7) Size: 1-1/2" - 40", DN40 - DN1000

8) Pressure: Class125 - Class300, PN6 - PN40

9) Temperature: -20° C - 200° C

10) Property: Longer service life and zero leakage


STANDARD MATERIAL LIST
No.Parts NameMaterial
1Bottom CoverA182 F6, F304, F304L, F316, F316L
2StudA193 B7, B7M, B8, B8M
3GasketGraphite
4BodyA216 WCB, A352 LCB, A351 CF8, CF8M, CF3, CF3M, Duplex
5StemA182 F6, F304, F304L, F316, F316L
6BoardA182 F6, F304, F304L, F316, F316L
7DiscA216 WCB, A352 LCB, A351 CF8, CF8M, CF3, CF3M, Duplex
8PinA182 F6, F304, F304L, F316, F316L
9StudA193 B7, B7M, B8, B8M
10Seal RingSS304+Graphite
11BushingSS304+PTFE
12PackingGraphite
13Yoke NutA194 2H, 2HM, 8, 8M
14Yoke StudA193 B7, B7M, B8, B8M
15YokeA216 WCB, A352 LCB, A351 CF8, CF8M, CF3, CF3M, Duplex


Our company is specialized in manufacturing and various valves . To guarantee good quality, we follow ISO9001 standards to inspect our goods. From raw material purchase to pre-shipment inspection, we keep an eye on every step to ensure the satisfaction of our customer on quality.


Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of cast iron centre sealing wafer butterfly valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.
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