HF valves

HF valves

HF valves - Dutch Valve Vision

HF valves conform UOP (Conocophillips)

The Alkylation units is a conversion processes used in petroleum refineries. It is used to convert isobutane and low-molecular-weight alkenes (primarily a mixture of propene and butene) into alkylate, a high octane gasoline component. This process occurs in the presence of a strong acting acid such as sulfuric acid or hydrofluoric acid (HF) as catalyst. Depending on the acid used, the unit takes the name of SAAU (Sulphuric Acid Alkylation Unit) or HFAU (Hydrofluoric Acid Alkylation Unit).

The material(s) of valves will be determined to which pipe class they will fall under and to which HF concentration they are suitable to use.

Pipe : Class :  Body : material : Trim : Class : HF concentration

  • HF1; HF10  Monel  Monel  300, 600, 800  80 to 98
  • HF2; HF20  Carbon steel  Monel  300, 600, 800  0,4 to 98
  • HF4; HF40   Carbon steel  Monel  150  1ppm to 50ppm
  • HF5; HF50  Carbon steel  Monel  300  1ppm to 50ppm HF4/5  Carbon steel  Monel  800  1ppm to 50ppm HF6  Carbon steel  CS, F6  150  Non acid process
  • HF7  Carbon steel  CS, F6  300  Non acid process


Scope of supply

We can supply below HF valves for alkylation services conform to UOP & Conocophillips standards.

  • Gate valves
  • Bellow sealed globe valves
  • Piston check valves
  • Swing check valves
  • Plug valves

All parts and valves are conform to the highest quality standards in the market .

Please send us an e-mail through our website to inquire further.

Please use the button below to get in touch

Contact us