Product Description
It's serviced in the circumstance where the heat preservation of fluid is needed,such as the equipment of polyester,ethylene,urea,etc. Body including inlet and outlet flange is heat preserved ,so the effect is very well.The function of vapor flushing can be added,if needed.Balanced bellows construction protects set pressure from being affected by variable back pressure ,and the parts in bonnet,such as spring ,from being corroded.The standard materials for the inside parts(Valve clack,valve seat)are all austenitic stainless steel and bead welding cobalt-base hard ally.