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Flanged Soft Seal Butterfly Valve Product Overview

  • Author:RKSfluid Newsroom
  • Release on :2019-12-13
RKSfluid's professionally produced flanged soft-seal butterfly valve has the advantages of simple structure, small flow resistance coefficient, straight flow characteristics, no debris retention, light weight, convenient installation and low driving torque. This valve can be used both for cutting off the medium and for regulating the flow of the medium. Selection of parts made of different materials, with different materials of sealing rings, can adapt to different media and working conditions, to achieve the best results in cost and performance. Lever flange type soft seal butterfly valves are widely used for temperatures ≤120 ℃, nominal pressure ≤ 1.6MPa water supply and drainage, sewage, food, heating, gas, marine, hydropower, metallurgy, energy systems and light textile industries, especially suitable for two-way seals and valve body easy to rust occasions, for regulating flow and interception medium.

Product Features of Flange Type Soft Seal Butterfly Valve:
1. Compact and lightweight, easy to disassemble and maintain, and can be installed in any position.
2.Simple and compact structure, small operating torque, 90 ° rotation to open quickly, convenient operation, labor-saving and dexterous.
3. The flow characteristics are straight, and the adjustment performance is good.
4. The connection between the butterfly plate and the valve stem adopts a pinless structure, which overcomes the possible internal leakage points.
5. The outer circle of the butterfly plate adopts a spherical shape, which improves the sealing performance and prolongs the service life of the valve. It still maintains zero leakage when it is opened and closed under pressure for more than 50,000 times.
6. The sealing material is resistant to aging and corrosion, the seals are replaceable, and the seal is reliable to achieve a two-way seal.
7. The butterfly board can be spray coated according to user requirements, such as nylon or PTFE.
8. The valve can be designed into flange connection and wafer connection.



Lever Flange Soft Seal Butterfly Valve Performance Specifications:
Sealing ring material:
Natural rubber (NR) -20 ℃ ~ + 85 ℃
Ethylene-propylene rubber (NBR) -40 ℃ ~ + 125 ℃
Nitrile rubber (EBR) -20 ℃ ~ + 82 ℃
Silicone rubber (SI) -70 ℃ + 150 ℃
Fluoro rubber (VITON) -23 ℃ ~ + 150 ℃
Fluoroprene rubber (CR) 0 ~ + 80 ℃
Butyl rubber (IIR) -40 ℃ ~ + 100 ℃
Polytetrafluoroethylene (PTFE) + 10 ℃ ~ + 150 ℃
Butterfly valve applicable medium: fresh water, sewage, sea water, air, steam, food, medicine, various oils, acids, alkalis, salts, etc.