Find high quality nbr lined butterfly valve with competitive price here. Please rest assured to buy nbr lined butterfly valve with Zhejiang Zhengfeng Valve Co.,Ltd

ZFV NBR lined butterfly valve. Seat/linbed material is NBR ( nitrile rubber ), which have good performance anti-oil, often be used for oil seal. Below are other soft material produced as valve seat/ line :

NR ( Natural rubber ) NR good elasticity, good overall performance, but poor cold and poor alkali resistance.

EPDM ( ethylene propylene diene rubber ), good insulation for wear-resistant materials or high-pressure electrical materials

Neoprene rubber. good wear resistance, for the mat Chlorosulfonated polyethylene CSM cold good

Polytetrafluoroethylene ( PTFE / TEFLON ) 

Plastic king, excellent acid and alkali resistance, can be resistant to fluoride. Uses a wide range of corrosive liquid can be used for the pipeline.