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D671N pneumatic soft sealing butterfly valve

Nylon environmental protection butterfly valve, contain anti-corrosive, anti-wearing, and non-toxic, antibacterial, antifungal, small operation torque, convenient maintenance, beautiful shape.

Main features

1、  nylon material, ensure complete isolation between media and metal, improve reliability of product

2、  good anti-wearing

3、  can be installed at any position, convenient maintenance

4、  sealing parte can be changed, sealing performance can reach double-way sealing, no leakage

5、  nylon material, without any toxicity, and anti-bacterial, anti-mildew

nominal diameter DN（mm） 50～2000

nominal pressure PN（MPa） 0.6 1.0 1.6

test pressure: strength test 0.9 1.5 2.4

sealing test  0.66 1.1 1.76

gas sealing test0.6 0.6 0.6

suitable media: air, water, sewage, steam, gas, oil

drive mode: manual, worm transmission, gas transmission, electric transmission