The signal butterfly valve

Signal butterfly valve use eccentric disc,camshaft contact with button signal,provide signal of on and off effectively,and it can output connective sound and light device,supply signal of sound and light,generally,It is fitted for fire-control device.

2)Design Features

Nominal diameter DN(mm):50~200
Nominal pressure PN(MPa):0.6 1.0 1.6
Test pressure Ps(Mpa):
Shell test 0.9 1.5 2.4
Seal test 0.66 1.1 1.76
Gas seal test 0.6 0.6 0.6

3)Component Materials

Packing:Fluoroplastics flexible graphite

Seal Ring:Nitrile butadiene rubber fluorine rubber

Body Material:Cast iron Cast steel

Disc:Cast iron Cast steel

Stem:2Cr13