Regulators
Pressure Tech HF Series – High Flow Regulators
Regulators
Pressure Tech HF Series – High Flow Regulators
The HF Series is a family of high-flow regulators available in both diaphragm-sensed and piston-sensed designs for gas or liquid service. With port sizes from ½″ to 3″ and Cv values up to 13.0, they are built for stable, accurate control where high capacity and high pressure performance are essential.
Why it matters
High-flow applications demand regulators that can maintain downstream stability without compromising safety or service life. The HF Series ensures accurate pressure reduction across a wide range of flows and pressures, protecting downstream systems while supporting critical process operations.

Product features
- Piston-sensed or diaphragm-sensed options
- Cv range 4.0-13.0 depending on model
- Balanced main valve design across the range
- Options for dome-loading and pilot operation
- Available with PCTFE, PEEK™, or Vespel® seats for gas or liquid service
- Stainless steel construction as standard
Models
- HF211: dome-loaded, piston-sensed regulator with Cv 13.0; supplied with MF101 or LF540 pilot as standard datasheet
- HF250: diaphragm-sensed high-flow regulator with Cv 7.0; available dome-loaded (1:1 ratio) with MF101 pilot datasheet
- HF251: piston-sensed high-flow regulator with Cv 7.0, for gas or liquid service datasheet
- HF300: non-venting diaphragm-sensed regulator with balanced main valve; PEEK™ or Vespel® seat options datasheet
- HF301: non-venting piston-sensed regulator with balanced main valve; PEEK™ or Vespel® seat options datasheet
- HF600: piston-sensed regulator for gas service, Cv 7.0, for applications requiring both high-flow and high pressure (inlet up to 600 bar / 8,700 psi) datasheet
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