Pressure Relief Valves Set 175psi- Series FP53L

Underwriters Laboratory listed ½" N.P.T. (20mm)

Watts No. FP53L is designed for use in fire protection grid systems to provide protection against excessive water pressure caused by thermal expansion or line surge. It has a standard 175 psi pressure relief setting and can be installed horizontally or vertically. Bronze body construction with stainless steel spring to inhibit corrosion. The valve is constructed with a precision stem guide to ensure proper reseating. The test lever affords periodic manual testing and flushing of waterways and seating surfaces.

WARNING

As thermal expansion conditions develop, pressure builds up to the setting of the relief valve. this will cause discharging of small quantity of water.

Pressure Relief Valves should be tested periodically to ensure that the product has not been affected by corrosive water conditions and to ensure that the valve and discharge piping have not been altered or tampered with.

FEATURES

Underwriters Laboratory listed
Forged stainless steel spring
Bronze body construction for superior strength and to prevent corrosion
Manual test lever
Valve stem is guided to enhance reseating
½" male inlet x female outlet
175 psi pressure setting

SPECIFICATIONS

For applications requiring a UL approved relief valve to provide pressure relief protection from water pressure in excess of 175 psi. Each valve shall be bronze body construction with forged stainless steel spring. It shall have a test lever and the valve shall be guided to enhance reseating and to decrease chance of the seat being misaligned. Watts Regulator Company Model No. FP53L.

DIMENSIONS - WEIGHT

No.	Size	Height	Width	Weight
FP53L	½"	3 ½"	1 ⁷/₈"	½ lb.

Pressure Relief Valves Set 175psi- Series FP53L

North California Office :- 285-A Bel Marin Keys Blvd - Novato, CA - 94949 PH: (415) 382 - 9710 FAX: (415) 382 - 9720