High Pressure

This range of high pressure regulators are primarily for use on gas applications. They are piston-sensed regulators covering pressure ranges up to 1,034 bar (15,000 psi). Cv 0.06-2.0

Pressure Tech LF311

The LF311 is a single-stage piston-sensed pressure regulator for applications that require higher supply pressures in addition to an extended life cycle.

Based on the LF301, the LF311 also offers a ‘solid disk’ seat design which is more robust for aggressive or high temperature applications.


Pressure Tech LF540

The LF540 is a compact and economical piston-sensed, low-flow regulator with precision machined sensing elements to allow fine pressure control up to 414 bar (6,000 psi).

Its load bearings and large handwheel offer low torque adjustment, and the LF540 can be supplied as non-venting or self-venting, non-captured (on gas only).

Please Note: Cv 0.3 is only available as non-venting.


Pressure Tech LF792

The LF792 is a piston-sensed low-flow pressure regulator with a Tecasint® seat for use on high pressure gases. It uses a range of precision-machined sensing elements to provide pressure control up to 1,034 bar (15,000 psi).

The LF792 features an unbalanced main valve as standard for up to 1,034 bar (15,000 psi) inlet pressure with a flow coefficient of 0.1. Alternatively, a balanced option can be supplied with up to 690 bar (10,000 psi) inlet pressure and a flow coefficient of 0.3.

The LF792 offers all of the same great features as the LF692, but with enhanced support on the seat cartridge.



“Very impressed with their attention to detail and commitment to designing a system which caters not only for our immediate needs, but also looking forward to our future needs. Their holistic approach has given us the confidence that they will always recommend the most appropriate choice and that they really look after their customers.”

CR - Sydney

“I have been dealing with Haldatec for the past 15 years. In that time, they have consistently delivered beyond my expectations. From technical innovations to personalised site support, I can thoroughly recommend Haldatec for your pressure control / instrumentation requirements.” 

TW – Melbourne

“Great end to end service from Haldatec. They really took the time to understand our needs, then design and manufacture a solution for us. They have also provided ongoing support and advice whenever we’ve needed it since 1998.”

DP – Sydney

Contact Us

  • Phone+61 3 9872 5822
  • Fax+61 3 9872 5129
  • PostPO Box 3067, Nunawading VIC 3131
  • VisitUnit 11, 27-33 Thornton Crescent,
    Mitcham VIC 3132 View map

Send an Enquiry