... small-scale combination valve, automatic compensation for plunger shut-off valve, self sealing valve and double-headed valve. Our products ... 11ms Operating life,5000 times Material & connection Valve body,LY12-CZValve core:,1Cr18Ni9TiSealing,EPDM(E),metallic ... M26×1.5 Accessories Metal protection caps(LY12-CZ),O-ring,Plastic protection caps,Meter connector,Inflatable valve metal Combination valve