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. It is mounted between two matching flanges of the piping with bolts & nuts. Most wafer-style butterfly valves are engineered with four holes that align with the connected pipeline. The valve is designed to clamp between two flanges in your pipe work. Most wafer butterfly valves fit the majority of flange standard. The rubber or EPDM valve seat creates an exceptionally strong seal between the valve and flange connection.Unlike lug-style butterfly valves, wafer-style butterfly valves cannot be used as pipe ends or end-of-line service. The entire line must be shut down if either side of the valve requires maintenance. Wafer style butterfly valves are manufactured to be compatible with either pneumatic or electric actuation. Disc and seat material should be determined based on application and flow media.

2. FEATURES

· Simple structure and easy operation

· Easy installation and good sealing

· Long service life and high reliability

· Good interchangeability of parts and cost saving

· Wafer type butterfly valve with concentric design

· Using backless structure, Rubber fusion bonded on valve body

· Replaceable, resilient seat

· Streamlined disc, one-piece stem

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