FISHER 289HH-1 relief Valves or Backpressure Regulators

FISHER 289HH-1 belongs to the 289 series of pressure relief valves or back pressure regulators, the following is its relevant introduction:

Connection size: 1 inch NPT female threaded connection, this connection is easy to install, can be well connected with a variety of piping systems, the caliber size is suitable for specific flow requirements.

Pressure parameters

Maximum Allowable Pressure Relief (Inlet) Pressure: Typically 100psig/6.9bar.

Pressure Relief Setting Pressure Range: 45-75PSI (3.1-5.2bar), adjustable by spring setting according to actual system pressure protection requirements.

Temperature range: - 20 to 150°F (-29 to 66°C) for NBR and CR seals; 20 to 300°F (-7 to 149°C) for FKM (289H and 289HH models only).

Weight: Approx. 4 lb/2 kg for easy installation and handling, with low impact on load pressures at the mounting location.

Other features: Discharge flow rate up to 3200Nm³/h, can meet the needs of larger flow pressure relief, effective protection of system safety. Simple structure, reliable performance, can be installed in any position, suitable for industrial and civil users, can be used for natural gas, artificial gas, liquefied petroleum gas, air and other gases.