Regulators

Pressure Tech Hydraulic / Water-Glycol Regulators – HYD691, LF690, LF691, LGC690, MF414

Regulators

Pressure Tech Hydraulic / Water-Glycol Regulators – HYD691, LF690, LF691, LGC690, MF414

These piston-sensed regulators are designed for liquid service, specifically hydraulic fluids and water-glycol systems. With ceramic seating and segregated captured venting, these regulators are built to withstand cavitation, erosion, and wear in demanding hydraulic applications.

Why it matters

Hydraulic and water-glycol systems operate under tough conditions that can quickly damage standard regulators. These specialised models extend service life, provide positive shut-off, and maintain stable control, reducing downtime and maintenance costs in critical operations.

Pressure Tech Hydraulic / Water-Glycol Regulators – HYD691, LF690, LF691, LGC690, MF414

Product features

  • Piston-sensed designs for durability in liquid service
  • Ceramic seating to resist cavitation and provide positive shut-off
  • Segregated captured vent to protect the loading mechanism
  • Balanced main valve options for improved control accuracy
  • Designed for long service life in hydraulic and water-glycol applications

Models

  • HYD691: piston-sensed regulator designed for water-glycol and other hydraulic services with ceramic seating datasheet
  • LF690: piston-sensed low-flow regulator with ceramic seating, engineered for hydraulic service datasheet
  • LF691: piston-sensed low-flow regulator with ceramic seating and plug design for pressures above 690 bar (10,000 psi) datasheet
  • LGC690: piston-sensed regulator for hydraulic control systems, designed with ceramic seating for cavitation resistance datasheet
  • MF414: piston-sensed medium-flow regulator with ceramic seating, designed for water-based hydraulic applications datasheet

Need help specifying the right regulators?

Talk to a Haldatec engineer about your application, site conditions and the standards you operate to.

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