Wafer butterfly valves are used in HVAC, irrigation, water treatment plants,commercial, and institutional applications and wherever positive shutoff is required to control the flow of liquids, gases, and slurries. We offer wafer butterfly valves in a range of sizes, performance ratings,materials and actuation options. Universal wafer butterfly valve no-pin type is one of the main products of VALFLO. 

Technical Standard:
1.Design Standard: GB/T 12238/API 609/JIS B 2064/DIN EN593/BS EN593.
2.Face to face: GB/T 12221/ASME B16.10/JIS B 2002/DIN 3202/BS 2080.
3.Drive Connection: ISO5211.
4.Flange Standard: GB/T 9113/ASME B16.5/JIS B 2220/DIN EN1092-1/BS EN1092-1.
5.Test Standard: GB/T 13927/API 598/JIS B 2003/DIN EN12266-1/BS EN12266-1.

Product Advantages&Our Service:
1.Completely sealed in both directions – EN 12266 (A Level) airtight grade.
2.Valve disc has a precision-machined spherical sealing surface, which has low torque and long service life.
3.Valve seat 50% rubber content, with high elastic performance.
4.Valve stem adopts no-pin design, avoid one leakage point.
5.Three self-lubricating bushings on the valve stem to prevent the valve stem from deflecting.
6.Installed in any direction.
7.Adopt epoxy painting,stronger adhesion and good weather resistance.
8.Aluminium Lever, stronger corrosion resistance.
9.Pressure Testing Report,3.1 Certificate of Material can be provided.

Face to face dimension: