Durco sleeved plug valve
June 13, 2017
400D Handgun
June 13, 2017

Durco HF valves

Durco 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.

Durco G4Z-HF valves are refinery proven and recommended: for:

HF Alkylation,H2SO4 Alkylation,Caustic & Salt Slurries,Light Ends, Flare Gas,Fuel Oil, Propane/Butane,Gasoline, Jet Fuel,Heavy Sour Crude, and Utilities

Durco G4Z-HF Alkylation Valves are available in the following sizes and end configurations:

G4Z32-HF: Class 300 Screwed End: 1/2 in through 2 inch

G4Z31-HF: Class 300 Flanged End: 1/2 in through 18 inch

G4Z35-HF: Class 300 Socketweld: 1/2 in through 2 inch


  • Quarter-Turn Operation
  • In-line adjustment of plug-sleeve compensates for wear
  • Positive Shut-Off
  • All Monel Construction, Fire-Sealed, HF indicating paint
  • All bodies radiographed to ensure sound castings.
  • Durco Alkylation Valves may be fitted with V-port plugs for precise modulating control services.

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