Ductile Iron Wafer Type Butterfly Valve Gearbox SS Disc

Wafer type butterfly valve

1. PROFUCT PROFILE

Wafer type butterfly valve is one type of central lined butterfly valve, which is one normal type of butterfly valve in need of big quantity.In the case of a Wafer-style butterfly valve, the body is annular with a few non-tapped centring holes. Some Wafer types have two while others have four.

The flange bolts are inserted through the bolt holes of the two pipe flanges and the centering holes of the butterfly valve. By tightening the flange bolts, the pipe flanges are pulled towards each other and the butterfly valve is clamped between the flanges and held in place.Prosper Flow can produce the wafer butterfly valve rubber lined in accordance with EN593, API609 and AMSE B16.34.

2. FEATURES

· Compact structure and Light weight, easy installation.
· 90° ON/OFF quick operation.
· 2-way bearing Disc with perfect sealing.
· Strong wash and brush resistance.
· Centre-line structure, small torque to open
· 10,000 life time testing from Open/Close.
· Cutting off and regulation medium available.
· No pin structures.

3. TECHNICAL SPECIFICATION

· PN10 / PN16 / 125LB / 150LB / JIS10K / 150PSI / 200PSI

· Size: 1-1/2″~40″ (40~1000mm)

· Materials: A126 B (GG25), A536 65-45-12 (GGG40/50)

· Epoxy coating with thickness ≥ 250μm

· Working temperature: 0℃~+80℃

4. STANDARD

· Design and Manufacture Conform to EN 593, API609, JIS

· Flange dimensions Conform to EN 1092-2 PN10, PN16, JIS5K, JIS10K,ANSI B16.1,DIN2501,BS4504

· Face to Face dimensions Conform to EN558 series

· Top Flange dimensions Conform to ISO5211

· Testing Conform to API598,EN12266-1

5. APPLICATION

1. Water works, water projects
2. Environment protection
3. Public facilities
4. Power plant
5. Real estate
6. Petroleum, chemical industry
7. Steel work, metallurgy
8. Paper plant
9. Food & beverage
10. Water treatment plant