Specifications

1.Zero leakage in air tight test;
2.Good sealing in bi-directional;
3.Excellent anti-corrosive performance.

1. Features:

Rubber lined butterfly valve is a kind of valve with thick polymer lining on the body and disc. The lining makes the body completely isolate from medium and provides excellent anti-corrosive performance. It is designed as a device to shut-off or regulate the working medium flow and installed in pipelines or vessels with medium of acid, alkali, salt and oxideant, reducing agent, organic solvent in chemical, petroleum, pharmacy, food , iron and steel semlting, paper making, water power plant etc. It can be served as a gate valves, globe valves as well as other shutting off or regulating valves.

 

2. Standard:

Design & Manufacture	AWWA C504 / API 609
Flange Connection	AWWA C207 / ASME N16.5 / ASME B16.47
Face to Face Dimension	AWWA C504 / API 609
Test & Inspection	AWWA C504 / API 598

 

3. Material Specification:

Ref	Description	Material
1	End Cap	Carbon Steel, Stainless Steel
2	Gasket	Rubber O-Ring, PTFE
3	Thrust Ring	Carbon Steel, Stainless Steel
4	Bushing	Bronze, PTFE, Stainless Steel
5	Body	Gray Cast Iron, Ductile Iron, Cast Steel, Stainless Steel
6	Seat Ring	NBR, EPDM, PTFE, VITON
7	Disc	Gray Cast Iron, Ductile Iron, Cast Steel, Stainless Steel, Aluminium Bronze
8	Shaft	2Cr13, 1Cr18Ni9Ti, 304, 316, 316L Stainless Steel
8	Shaft Pin	2Cr13, 1Cr18Ni9Ti, 304, 316, 316L Stainless Steel
9	Packing or "O" ring	NBR, EPDM, PTFE, VITON
10	Packing Gland	Ductile Iron, Carbon Steel, Stainless Steel
11	Yoke	Cast Iron, Cast Steel
12	Worm Gear	Cast Iron, Ductile Iron, Carbon Steel
13	Hand Lever, Hand Wheel	Ductile Iron, Malleable Cast Iron, Carbon Steel