Sell 289 RELIEF VALVE from Indonesia by PT. Agung Perkasa Sejahtera,Cheap Price

Product Specification 289 RELIEF VALVE

Relief Valve

Fisher™ 289 Series Relief Valves or Backpressure Regulators

Fisher 289 Series relief valves are spring-loaded throttling relief valves used as downstream pressure regulators to protect the system from overpressure. A smooth throttling action minimizes pressure surges in the system during relief operation. 289 Series relief valves are ideal for low-pressure settings due to the increased sensitivity provided by a large diaphragm area. 289 Series relief valves are designed for pressure control; they are not ASME safety relief valves.

Body Sizes and End Connection Styles

Types 289A and 289U: 1/4 NPT
Type 289H: 1, 2 NPT
Type 289HH: 1 NPT
Type 289L: 3/4, 1 NPT
Type 289U: 1/4 NPT

Maximum Allowable Relief (Inlet) Pressure

100 psig / 6.9 bar

Relief Set Pressure Ranges (5 models)

5wc to 50 psig / 25mbar to 3.5 bar

Pressure Registration


Temperature Capabilities

Nitrile (NBR) and Neoprene (CR) Elastomers: -20 to 150°F / -29 to 66°C Fluorocarbon (FKM): 20 to 300°F / -7 to 149°C Available with Types 289H and 289HH only

Approximate Weights

Type 289A and 289U: 0.75 Pounds / 0.3 kg 
Type 289H: 1 NPT - 4 Pounds / 2 kg, 2 NPT - 15 Pounds / 7 kg
Type 289HH: 4 Pounds / 2 kg
Type 289L: 15 Pounds / 7 kg

289H: Relief Adjustment Ranges

0.5 to 2.25 psig / 34 to 155 mbar

289H: Maximum Relief (Inlet) Pressure

25 psig / 1.7 bar


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We Are A Company Engaged In The Provision Of Goods And Services For Industrial Use, Both Gas And Oil Mining Industry In Indonesia And Other Sub Contractors.We always give special attention in specification, Quality, Quantity, Delivery on time and good serviceHEAD OFFICE Jalan Serdang Baru XIII No 28 Kemayoran City of Central Jakarta - DKI Jakarta Tel. (021) 4228289 Fax. (021) 4215905 Hp. 0813 1845 5549 Email:

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