Description

Durco G4 plug valves offer tighter shutoff than other rotary design valves and emissions containment equal to or better than specially designed severe service valves. They are a best choice for difficult chemical applications and for isolation of pumps, tanks, reactors and other critical equipment. Compared to our standard G4 plug valves, the plug valve series G4Z comes in fire sealed design. Flowserve has provided thousands of Durco HF Alkylation valves to refineries throughout the world. Phillips licensing listed and UOP process division approved! They are a best choice where drop-tight shutoff is an absolute requirement. Fire sealed sleeveline valves incorporate special Grafoil packing rings at the stem and Grafoil gaskets at the top cap that reduce atmospheric leakage to a negligible amout should fire destroy the PTFE sleeve and diaphragm. A metal diaphragm keeps the Grafoil packing in place if the top seal is destroyed.

Product features

Type Plug Valve
Operations Chainwheel, Electric Actuator, Pneumatic double-acting, Pneumatic single-acting, Lever, Topflange (I
Sizes 1/2", 3/4", 1", 1 1/2", 2", 3", 4", 6", 8", 10", 12", 14", 16", 18"
Flange connection ANSI 300
Face-to-face ANSI B 16.10
Body material Monel
Packing gland Graphite
Pressure range Class 300
Sealing Graphite
Connection F/F, Flanges

Additional product literature

PDF documents

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