Rubber Seal Butterfly Valves

We are offering rubber seal double eccentric butterfly microresistance slow close non-return valve.
h47x rubber-seal double eccentric butterfly microresistance slow close non-return valve
nominal pressure： pn1.0mpa pn1.6mpa
suitable media： fresh water、sewage、seawater、air、vapor、food、medicine、acids、alkalis、ect.
suitable temperature： -10℃～120℃
nominal diameter： 300～1000mm
product introduction:
series h47x products are latest research result of rubber-seal double eccentric flanged butterfly valve, which are used mainly for petroleum processing, chemical engineering, food, medicine, paper making, water supply and drainage, metallurgy and energy engineering system, using as the non-return valves that can ward off media?counter current and devastating water hammer.
product criterions:
(1) flange connection dimension accords with gb/t17241.6-98?cast iron tube flange dimension .
(2) construction length accords with long series construction length standard of double flange connection butterfly valve on gb12221-89?construction length of flange connection metal valve .
product features:
(1) novel design, reasonable and compact construction. Steady-going and reliable performance. Taking slow close set outside pipelines can avoid contaminative media.
(2) smooth running, no vibration and no noise. Complete seal and no leakage.
(3) double eccentric construction design can lessen flow resistance, vibration and water hammers?influences.
(4) excellent on-off trait and quick on-off. Valve open pressure is less than or amount 0.8mpa. Valves?close is adjustable, including quick and slow close mode. Slow close抯 adjustable scope is large, sp ot can fit with different working circumstances.
main performance parameters:
nominal pressure (mpa) nominal diameter (mm) testing pressure (mpa) testing temp suitable media
shell seal oc
1.0 300 -- 1000 1.5 1.1 -10 -- 120 fresh water, sewage, seawater,
air, vapor, food, medicine,
acids, alkalis, ect.
1.6 2.4 1.76
0.6 1200 -- 1800 0.9 0.66
1.0 1.5 1.1