DN15 LGS HI-FLOW Relief Valve H3615A3A77

15mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas and Steam

Notes:

Maximum Pressure when used on Saturated Steam is 14 bar g. (203 psi g.)

Overpressure = Set pressure +10% (or 0.1 bar g., whichever is greater)

Blowdown pressure (Gas & Steam) = Set pressure -15% (or 0.3 bar g., whichever is greater)

Blowdown pressure (Liquid) = Set pressure -20% (or 0.6 bar g., whichever is greater)

Liquid (Water)

Pressure (bar g.)	0.2	1.0	5.0	10.0	15.0	20.0	24.0
Flow Rate (kg/Hour)	1,097.19	2,453.40	5,485.96	7,758.32	9,501.97	10,971.93	12,019.15

Liquid (Hot Water)

Pressure (bar g.)	0.2	1.0	5.0	10.0	15.0	20.0	24.0
Flow Rate (kg/Hour)	1,603.59	3,585.74	8,017.95	11,339.09	13,887.49	16,035.90	17,566.44

Gas (Air)

Pressure (bar g.)	0.2	1.0	5.0	10.0	15.0	20.0	24.0
Flow Rate (kg/Hour)	64.86	121.64	374.90	694.48	1,008.06	1,324.64	1,577.90

Steam (Saturated Steam)

Pressure (bar g.)	0.2	1.0	5.0	10.0	14.0
Flow Rate (kg/Hour)	38.38	77.10	229.94	417.54	566.71

Min Pressure	0.2 bar g. (2.9 psi g.)
Max Pressure	24 bar g. (348 psi g.) 14.00 bar g. (203.00 psi g.) on steam
Temperature Range	-60°C to 200°C
Flow Area	176.62 mm² (15mm inlet bore diameter)
Inlet Connection	1/2" BSP female
Outlet Connection	3/4" BSP female
Flow Rate	Refer to Flow Tables
Materials	Bronze
Seal Material	PTFE
Test Certifications	Supplied free of charge
Approval	UKCA – PE(S)R, BS EN ISO 4126-1, PED Pressure Equipment Directive (CE Marked), EAC customs union (Russia, Belarus and Kazakhstan)