Regulators
Hydraulic, Water Glycol
Hydraulic piston-sensed regulators are for use on liquid applications. With pressures up to 1,380 bar (20K psi), they can also incorporate captured vent.
Pressure Tech HYD691
The HYD691 is a low-flow hydraulic pressure regulator. Specifically targeting mineral oil applications, it has been designed as a compact and economical alternative to the LF690, yet still incorporates all of its key features including a ceramic seat. In comparison, the LF690 offers more extensive Cv options and caters for the harsh services encountered on water-based hydraulic applications such as water glycol.
Pressure Tech LF690
The LF690 is a piston-sensed low-flow reducing regulator with ceramic seating to provide the ultimate protection against the harsh service encountered on hydraulic applications such as water glycol.
Its unique seating cartridge ensures the main valve is fully supported during operation to prevent ‘chattering’. The LF690 is supplied with a segregated captured vent to prevent deterioration to the loading mechanism and making the regulator easier to service.
Pressure Tech LF691
The LF691 is a piston-sensed low-flow reducing regulator with ceramic seating to provide the ultimate protection against the harsh service encountered on water-based hydraulic applications such as water glycol. In addition, the LF691 offers a plug design for supply above 690 bar (10,000 psi).
Its unique seating cartridge ensures the main valve is fully supported during operation to prevent ‘chattering’. The LF691 is supplied with a segregated captured vent to prevent deterioration to the loading mechanism and allowing media to be piped off to the return tank.
Pressure Tech LGC690
The LGC690 is a piston-sensed low-pressure hydraulic reducing regulator. It provides accurate control on Logic Control Systems used on Wellhead Control Panels where low deadband and repeatable pressure control is critical.
With a balanced main valve as standard, the LGC690 offers an easy to service main valve cartridge assembly and self-venting via its captured port.
Pressure Tech MF414
The MF414 is a medium-flow piston-sensed pressure regulator with a balanced main valve design to provide stable control under varying inlet pressures. Its versatility enables use on liquid (with a ceramic seat) or gas (with a PEEK™ seat) applications.
Both designs feature a segregated captured vent to allow pressure reduction of the outlet pressure through a 1/4” NPT port on the side of the regulator’s body.
