Advanced Specialty Gas Equipment Valves RV5570, RV5580 Series Relief Valves

RV5572 Series Relief Valve VALVES
RV5570, RV5580 Series
Relief Valves

Relief valves are commonly used downstream of pressure regulators to protect the regulator,delivery pressure gauge and downstream system from damage due to overpressurization caused by a regulator failure. They may be used with hazardous gases because they have 1/4" NPT outlets which permits vented gas to be piped to a safe disposal system.

RV5580 Series Relief Valve Specifications
Adjustable Range/Set Pressure:

Reseat Pressure: 70% of set pressure

Flow Coefficient:

Inlet Connection:1/4" NPT male

Outlet Connection:
RV5570:1/4" NPT male
RV5580: 1/4" NPT female

Approximate Weight:
RV5570: 2 oz
RV5580: 8 oz

Materials of Construction
Body:
Seals:
RV5570: Teflon® coated on Viton®
RV5580: Viton®

Table I, Non-Field Adjustable Relief Valves

Part No.	Set Pressure (psig)	Body Material	Flow Coefficient (Cv)
RV5572-50	50	Brass	0.37
RV5572-100	100	Brass	0.37
RV5572-250	250	Brass	0.37
RV5572-500	500	Brass	0.37
RV5572-800	800	Brass	0.37

RV5573-50	50	Chrome-Plated Brass	0.37
RV5573-100	100	Chrome-Plated Brass	0.37
RV5573-250	250	Chrome-Plated Brass	0.37
RV5573-500	500	Chrome-Plated Brass	0.37
RV5573-800	800	Chrome-Plated Brass	0.37

RV5574-50	50	Type 316 Stn. Stl.	0.37
RV5574-100	100	Type 316 Stn. Stl.	0.37
RV5574-250	250	Type 316 Stn. Stl.	0.37
RV5574-500	500	Type 316 Stn. Stl.	0.37
RV5574-800	800	Type 316 Stn. Stl.	0.37

Table II, Field Adjustable Relief Valves

Part No.	Adjustable Range (psig)	Body Material	Flow Coefficient (Cv)
RV5580-225	10–225	Type 316 Stn. Stl.	0.60
RV5580-350	50–350	Type 316 Stn. Stl.	0.41
RV5580-750	350–750	Type 316 Stn. Stl.	0.41
RV5580-1500	750–1500	Type 316 Stn. Stl.	0.41
RV5580-2250	1500–2250	Type 316 Stn. Stl.	0.41
RV5580-3000	2250–3000	Type 316 Stn. Stl.	0.41
RV5580-4000	3000–4000	Type 316 Stn. Stl.	0.41
RV5580-5000	4000–5000	Type 316 Stn. Stl.	0.41
RV5580-6000	5000–6000	Type 316 Stn. Stl.	0.41