The S3 fire protection pressure relief valve works using the principle of direct action. This is when the resultant force of the inlet pressure 

Factory-set pressure reducing valve. Category Hose valve. Certificate: UL Listed. Standard: ANSI / UL 1468. Function: Standpipe valve, floor control valve. W. pressure: Max inlet 300 / 400 psi. Surface: Rough / polished / chrome plated. Download Factory-set pressure reducing valve.

Fire System Pressure Reducing Valve. Series 910AF (Angle) Pressure Reducing Valve meets all requirements for UL Listed fire protection service. Automatically reduces a higher inlet pressure to an adjustable lower outlet pressure regardless of changing flow rate or varying inlet pressure.

The Zurn Wilkins Model ZW209FP Pilot Operated Pressure Reducing Valve is designed specifically for Fire Suppression Systems to reduce high inlet pressures to a 

For Fire Protection applications, our UL Listed/UL Classified Automatic Control Valves provide reliable high-performance flow control throughout sprinkler systems. Have a question or two? Visit our Customer Support page to find the answers you're looking for. Customer Support .

Pressure Reducing Valves. Cla-Val Pressure Reducing Valves (PRVs) are an indispensable part of any commercial fire protection system. The 90 Series PRVs are designed to automatically

Potter Roemer has a wide variety of fire valves in our mechanical line, including pressure reducing valves, hose gate valves, check valves, and valve 

Hydraulic Control Series 867-7UL Pressure Reducing Valve Series 867-7UL Pressure Reducing Valve Designed for Fire Protection applications Double chamber actuator provides rapid response to changing system conditions Advanced actuator design increases operating life Y Pattern valve body (Series 800) Sizes 1 ½ - 16″ | DN40 - DN400

Sep 06,  · The PRVs limit the system pressure (typically below 175 psi) below that which most sprinkler and standpipe system components are commonly designed to withstand. Mandatory requirements to include the fire protection system infrastructure within the building to perform full flow testing of PRVs did not appear in NFPA 13 until the 1999 Edition.

FM Approved Pressure Reducing Valve Reduces a higher inlet pressure to lower outlet pressure. Provides a consistent outlet pressure over a wide flow range. Pilot operated main valve is not subject to pressure fall-off. Outlet pressure is adjustable with a single screw. Can be maintained without removal from the pipeline.

Pressure reducing valves, for water - Fire protection · » Pressure Reducers ZURN WILKINS Grooved ends Class 300 2" · » Press. · » Pressure Reducers ZURN WILKINS