LGS Hi-Flow Safety Relief Valves

Multi Purpose valves suitable for Liquid, Gas and Steam Applications

All our valves are available from DN15 to DN50 (1/2" to 2" BSP Female Connections)

Pressure Range is 0.2 to 24 bar g. (depending on seal and duty)

The LGS HI-FLOW range is now UKCA approved and marked.

The PTFE & EPDM sealed range of LGS HI-FLOW valves have WRAS approval.

Also the LGS HI-FLOW valves have KUKreg4 approval Regulation 4 (1)a of the Water Supply (Water Fittings) Regulations 1999 England & Wales: 2009 Northern Ireland and 2014 Byelaw Scotland.

Part Number	Inlet Connection	Range (Bar)	DN	Material	Fitting	Seal
H3615A3A77	1/2" BSP Female	0.2 to 24	15	Bronze	Open Leaver	PTFE
H3620A3B07	3/4" BSP Female	0.2 to 24	20	Bronze	Open Leaver	PTFE
H3625A3C37	1" BSP Female	0.2 to 24	25	Bronze	Open Leaver	PTFE
H3632A3D67	1 1/4" BSP Female	0.2 to 24	32	Bronze	Open Leaver	PTFE
H3640A3E97	1 1/2" BSP Female	0.2 to 24	40	Bronze	Open Leaver	PTFE
H3650A3F27	2" BSP Female	0.2 to 24	50	Bronze	Open Leaver	PTFE

H3615A1A77	1/2" BSP Female	0.2 to 24	15	Bronze	Sealed Cap	PTFE
H3620A1B07	3/4" BSP Female	0.2 to 24	20	Bronze	Sealed Cap	PTFE
H3625A1C37	1" BSP Female	0.2 to 24	25	Bronze	Sealed Cap	PTFE
H3632A1D67	1 1/4" BSP Female	0.2 to 24	32	Bronze	Sealed Cap	PTFE
H3640A1E97	1 1/2" BSP Female	0.2 to 24	40	Bronze	Sealed Cap	PTFE
H3650A1F27	2" BSP Female	0.2 to 24	50	Bronze	Sealed Cap	PTFE

H3615A3A76	1/2" BSP Female	0.2 to 24	15	Bronze	Open Leaver	EPDM
H3620A3B06	3/4" BSP Female	0.2 to 24	20	Bronze	Open Leaver	EPDM
H3625A3C36	1" BSP Female	0.2 to 24	25	Bronze	Open Leaver	EPDM
H3632A3D66	1 1/4" BSP Female	0.2 to 24	32	Bronze	Open Leaver	EPDM
H3640A3E96	1 1/2" BSP Female	0.2 to 24	40	Bronze	Open Leaver	EPDM
H3650A3F26	2" BSP Female	0.2 to 24	50	Bronze	Open Leaver	EPDM

H3615A1A76	1/2" BSP Female	0.2 to 24	15	Bronze	Sealed Cap	EPDM
H3620A1B06	3/4" BSP Female	0.2 to 24	20	Bronze	Sealed Cap	EPDM
H3625A1C36	1" BSP Female	0.2 to 24	25	Bronze	Sealed Cap	EPDM
H3632A1D66	1 1/4" BSP Female	0.2 to 24	32	Bronze	Sealed Cap	EPDM
H3640A1E96	1 1/2" BSP Female	0.2 to 24	40	Bronze	Sealed Cap	EPDM
H3650A1F26	2" BSP Female	0.2 to 24	50	Bronze	Sealed Cap	EPDM

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DN15 LGS HI-FLOW Relief Valve H3615A3A77

SKU: H3615A3A77

15mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas and SteamNotes:Maximum Pressure when used on Saturated Steam is 14 bar g. (203 psi g.)Overpressure = Set pressure +10% (o...

DN20 LGS HI-FLOW Relief Valve H3620A3B07

SKU: H3620A3B07

20mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas and SteamNotes:Maximum Pressure when used on Saturated Steam is 14 bar g. (203 psi g.)Overpressure = Set pressure +10% (or...

DN25 LGS HI-FLOW Relief Valve H3625A3C37

SKU: H3625A3C37

25mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas and SteamNotes:Maximum Pressure when used on Saturated Steam is 14 bar g. (203 psi g.)Overpressure = Set pressure +10% (or...

DN32 LGS HI-FLOW Relief Valve H3632A3D67

SKU: H3632A3D67

32mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas and SteamNotes:Maximum Pressure when used on Saturated Steam is 14 bar g. (203 psi g.)Overpressure = Set pressure +10% (or...

DN40 LGS HI-FLOW Relief Valve H3640A3E97

SKU: H3640A3E97

40mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas and SteamNotes:Maximum Pressure when used on Saturated Steam is 14 bar g. (203 psi g.)Overpressure = Set pressure +10% (or...

DN50 LGS HI-FLOW Relief Valve H3650A3F27

SKU: H3650A3F27

50mm Nominal Bore Single Trim Enclosed Discharge Relief Valve for Liquid, Gas and SteamNotes:Maximum Pressure when used on Saturated Steam is 14 bar g. (203 psi g.)Overpressure = Set pressure +10% (or...