China Good Price Pressure Relief Valve Pilot-Operated Globe and Angle Body UL FM

Model NO.: RV 1 Handle Color: Blue Surface Treatment: Chrome Plated Connection: Flange X Flange, Thread X Thread, Flange X Flange Working Pressure: 250 Psi (17, 2 Bar) Trademark: Tyco Specification: 2 thru 8 Inch (DN50 thru DN200) Certification: FM UL Handle Thickness: 2.0mm Body Material: Ductile Iron International Certification: FM UL Temperature Range: 50°f to 175°f (10°c to 80°c) Transport Package: as Customer Require Origin: China
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


General    Description
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)



Technical  Data


Approvals
UL Listed; FM Approved

Maximum Inlet Pressure
250 psi (17,2 bar)

Temperature Range
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
Maximum Flow

•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.



End Connections



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.


Construction 


•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
Style
		(DN50)	(DN80)	(DN100)	(DN150)	(DN200)
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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