China Good Price Pressure Relief Valve Pilot-Operated Globe and Angle Body UL FM
Model No.: RV 1
China Good Price Pressure Relief Valve Pilot-Operated Globe and Angle Body ul fm
Model RV-1 Pressure Relief Valve
2 to 8 Inch (DN50 to DN200), 250 psi (17,2 bar) Pilot-Operated, Globe and Angle Body Styles
The TYCO Model RV-1 Pressure Relief Valves, 2 through 8 inch (DN50 through DN200), are factory assembled and fully trimmed valve arrangements for relief of excess water pressure. These valves are typically used to automatically relieve excess pressure in a fire protec-tion system that utilizes a fire pump. Pilot-controlled, the Model RV-1 Valve maintains a relatively constant system pressure at the pump discharge as flow demands change.
The Model RV-1 Pressure Relief Valve may be field-set to a nominal relief "set pressure" of 30 to 250 psi (2,1 to 17,2 bar).
Features are as follows:
• Globe or angle pattern
• Installation in any orientation
• One-piece, one-moving-part diaphragm
• Ceramic enamel-coated interior
• Standard nylon-coated exterior
• Accurate pressure Control
• In-line service
• No need to bleed trapped air from the diaphragm chamber
• One pilot valve sub-assembly that
provides for any outlet "set pressure";
that is; 30 to 250 psi (2,1 to 17,2 bar)
UL Listed; FM Approved
Maximum Inlet Pressure
250 psi (17,2 bar)
50°F to 175°F (10°C to 80°C)
Field Relief "Set Pressure" Range
30 to 250 psi (2,1 to 17,2 bar)
NFPA 20 Recommended
•2 Inch (DN50): 250 GPM (946 LPM)
•3 Inch (DN80): 500 GPM (1893 LPM)
•4 Inch (DN100): 1000 GPM (3785 LPM)
•6 Inch (DN150): 2500 GPM (9462 LPM)
•8 Inch (DN200): 5000 GPM (18925 LPM)
Refer also to Figure 4 for inlet pres-sure versus flow characteristics.
Threaded end connections are avail-able as NPT threaded or threaded per ISO 7/1. Flanged end connections are available as drilled per Table A.
•Body: Rilsan1 blue-coated ductile iron per ASTM A536-77, Grade 65-4512
•Diaphragm Cover: Rilsan blue-coated ductile iron per ASTM A53677, Grade 65-45-12
•Diaphragm: Nylon fabric-reinforced, natural rub-ber per ASTM D2000
•Diaphragm Cover Fasteners: Galvanized carbon steel
•Pilot Valve: Cast bronze and stainless steel with nylon fabric reinforced, natural rubber per ASTM D2000 diaphragm
•Pressure Gauges: 2-1/2 inch (65 mm) diameter, stain-less steel case, 0 to 350 psi (25 bar).
•Strainer, Tube, Fittings, and Needle Valve: Stainless steel
|Body||Nominal Valve Size|
|End Connection||2 Inch||3 Inch||4 Inch||6 Inch||8 Inch|
|Globe||Flange x Flange||•||•||•||•||•|
|Angle||Thread x Thread||•||N/A||N/A||N/A||N/A|
|Flange x Flange||N/A||•||•||•||•|
|• Available||N/A = Not Available|
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