WATTS Relief Valves

ASME complaint safety, vacuum relief and steam safety relief valves featuring a stainless-steel spring to control the opening / closing of the seal whenever the spring force exceeds a preset value, and then discharging fluid at the outlet

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WATTS -

Steam Safety Relief Valves

Style	Model	Relief Pressure	Price (inc. VAT)
A	315M2-012	-	£152.21
A	315M2-005	5 Psi	£140.28
A	L315M2-008	8 Psi	£120.70
A	315M2-SC-008	8 Psi	£212.92
A	L315M2-SC-008	8 Psi	£212.92
A	L315M2-015	15 Psi	£158.34
B	315M2-015	15 Psi	£159.86

WATTS -

Steam Relief Valves

Style	Model	Body Material	Discharge Capacity	Inlet Connection	Inlet Size	Inlet Type	Outlet Size	Price (inc. VAT)
A	415M1-SC-008	Brass	450 pounds per hour At 15 psi	Male Threaded	3/4"	Male Threaded	3/4"	£271.35
A	415M1-008	Brass	450 pounds per hour At 15 psi	Male Threaded	3/4"	Male Threaded	3/4"	£258.26
A	415M1-010	Brass	450 pounds per hour At 15 psi	Male Threaded	3/4"	Male Threaded	3/4"	£207.53
A	415M1-015 1	Bronze	643 pounds per hour At 15 psi	Female Threaded	1"	Female Threaded	1"	£328.98
A	415-015 1 1/4	Bronze	1230 pounds per hour At 15 psi	Male Threaded	1 1/4"	Male Threaded	1-1/2"	£459.65
A	415-015 1 1/2	Bronze	1860 pounds per hour At 15 psi	Male Threaded	1 1/2"	Male Threaded	2"	£525.75

WATTS -

Iron Safety Relief Valve

Style	Model	Overall Length	BtuH	Disc Material	Seat Material	Spring Material	Factory Set Pressure	Inlet Size	Outlet Size	Price (inc. VAT)
A	3/4 374 A	2.5"	550,000	Buna-N	Metal	Brass	30 psi	3/4"	3/4"	£102.94
B	3/4 740-050	3"	1,352,000	Silicone	Bronze	Stainless Steel	50 psi	3/4"	1"	£237.73
B	3/4 740-075	3"	1,886,000	Silicone	Bronze	Stainless Steel	75 psi	3/4"	1"	£223.22
C	3/4 740	3"	925,000	Buna-N	Metal	Brass	30 psi	3/4"	1"	£213.87
C	1 740	3.5"	1,300,000	Buna-N	Metal	Brass	30 psi	1"	1.25"	£359.64
B	1 740-075	3.5"	2,649,000	Silicone	Bronze	Stainless Steel	75 psi	1"	1.25"	£407.81
B	1 740-050	3.5"	1,899,000	Silicone	Bronze	Stainless Steel	50 psi	1"	1.25"	£428.18
B	1 1/4 740-075	4.625"	4,285,000	Silicone	Bronze	Stainless Steel	75 psi	1.25"	1.5"	£672.75
B	1 1/4 740-050	4.625"	3,075,000	Silicone	Bronze	Stainless Steel	50 psi	1.25"	1.5"	£671.83
C	11/4 740	4.625"	2,105,000	Buna-N	Metal	Brass	30 psi	1.25"	1.5"	£611.00
C	11/2 740	5.25"	2,900,000	Buna-N	Metal	Brass	30 psi	1.5"	2"	£847.37
D	1 1/2 740-075	5.25"	5,909,000	Silicone	Bronze	Stainless Steel	75 psi	1.5"	2"	£926.11
B	1 1/2 740-050	5.25"	4,237,000	Silicone	Bronze	Stainless Steel	50 psi	1.5"	2"	£953.11
E	2 740-050	6.75"	7,672,000	Silicone	Bronze	Stainless Steel	50 psi	2"	2.5"	£1,319.31
F	2 740-075	6.75"	10,700,000	Silicone	Bronze	Stainless Steel	75 psi	2"	2.5"	£1,290.85

WATTS -

Relief Valves

Style	Model	Item	Price (inc. VAT)
A	3/4 3L-150	Pressure Relief Valve	£143.92
B	1/2 53L-175	Pressure Relief Valve	£120.13
C	3/4 LF3L-150	Pressure Relief Valve	£163.59
D	3/4 530-C	Pressure Relief Valve	£113.18
E	1/2 LF53L-150	Pressure Relief Valve	£157.29
F	1/2 LF53-75	Pressure Relief Valve	£184.19
G	3/4 LF53-125	Pressure Relief Valve	£188.78
H	1/2 530-C	Pressure Relief Valve	£105.97
I	1/2 LF53-125	Pressure Relief Valve	£167.51
J	1/2 530-FP	Pressure Relief Valve	£105.97
K	3/4 LF3L-075	Pressure Relief Valve	£166.99
L	1/2 53L-150	Pressure Relief Valve	£124.00
M	3/4 LFBRVM1SXSXB-125	Relief Valve	£108.40
N	3/4 LFBRVM1TXTXB-125	Relief Valve	£133.15
O	3/4 354A-030	Safety Relief Valve	£92.78
P	3/4 M335M2-030	Safety Relief Valve	£65.80
Q	3/4 335M2-030	Safety Relief Valve	£54.62

WATTS -

1450F Series, Iron/Bronze Combination Fill and Relief Valve

Style	Model	Inlet Type	Overall Length	Pressure Range	Price (inc. VAT)
A	1450F	FNPT	6.5"	10 to 100 psi	£176.77
B	S1450F	Union Solder	7"	10 to 25 psi	£158.19

WATTS -

LF530C Series, Lead-Free Brass Calibrated Adjustable Relief Valve

Style	Model	Inlet Size	Price (inc. VAT)
A	1/2 LF 530-C STD	1/2"	£87.62
A	3/4 LF 530-C STD	3/4"	£95.72

WATTS -

Safety Relief Valve, Bronze

Style	Model	Seat Material	BtuH	Disc Material	Spring Material	Factory Set Pressure	Inlet Size	Outlet Size	Overall Height	Price (inc. VAT)
A	1 1/4 174A-150	Bronze	6,340,000	Silicone	Stainless Steel	150 psi	1.25"	1.25"	8.375"	£753.40
A	1 1/4 174A-100	Bronze	4,399,000	Silicone	Stainless Steel	100 psi	1.25"	1.25"	8.375"	£828.75
B	2 174A-050	Bronze	5,575,000	Silicone	Stainless Steel	50 psi	2"	2"	11.625"	£1,384.22
C	1 174A-150	Bronze	3,795,000	Silicone	Stainless Steel	150 psi	1"	1"	5.75"	£481.58
A	1 1/2 174A-150	Bronze	7,630,000	Silicone	Stainless Steel	150 psi	1.5"	1.5"	9"	£1,134.78
A	1 174A-050	Bronze	1,470,000	Silicone	Stainless Steel	50 psi	1"	1"	5.75"	£480.03
A	1 1/4 174A-075	Bronze	3,429,000	Silicone	Stainless Steel	75 psi	1.25"	1.25"	8.375"	£798.59
D	2 174A-075	Bronze	7,770,000	Silicone	Stainless Steel	75 psi	2"	2"	11.625"	£1,384.22
D	3/4 174A-075	Bronze	1,320,000	Silicone	Stainless Steel	75 psi	3/4"	3/4"	5.125"	£168.91
D	2 174A-125	Bronze	12,170,000	Silicone	Stainless Steel	125 psi	2"	2"	11.625"	£1,610.57
D	3/4 174A-125	Bronze	2,070,000	Silicone	Stainless Steel	125 psi	3/4"	3/4"	5.125"	£168.91
D	2 174A-150	Bronze	14,370,000	Silicone	Stainless Steel	150 psi	2"	2"	11.625"	£1,453.44
A	1 1/4 174A-125	Bronze	5,370,000	Silicone	Stainless Steel	125 psi	1.25"	1.25"	8.375"	£768.48
D	3/4 174A-150	Bronze	2,445,000	Silicone	Stainless Steel	150 psi	3/4"	3/4"	5.125"	£168.91
D	3/4 174A-100	Bronze	1,695,000	Silicone	Stainless Steel	100 psi	3/4"	3/4"	5.125"	£168.86
D	3/4 174A-050	Bronze	950,000	Silicone	Stainless Steel	50 psi	3/4"	3/4"	5.125"	£169.00
D	2 174A-100	Bronze	9,970,000	Silicone	Stainless Steel	100 psi	2"	2"	11.625"	£1,610.57
E	2 174 A	Metal	3,815,000	Buna-N	Brass	30 psi	2"	2"	11.625"	£1,309.43
F	1 174A 100	Metal	2,635,000	Nonmetallic	Stainless Steel	100 psi	1"	1"	5.75"	£363.25
F	1 174A 125	Metal	3,215,000	Nonmetallic	Stainless Steel	125 psi	1"	1"	5.75"	£361.15
F	1 174A 75	Metal	2,055,000	Nonmetallic	Stainless Steel	75 psi	1"	1"	5.75"	£402.09
G	174 A-3/4"	Metal	650,000	Nonmetallic	Stainless Steel	30 psi	3/4"	3/4"	5.125"	£111.44
E	11/4 174 A	Metal	1,682,000	Buna-N	Brass	30 psi	1.25"	1.25"	8.375"	£589.41

WATTS -

Bronze Steam Safety Relief Valves

Style	Model	Compliance	Inlet Size	Outlet Size	Overall Height	Overall Length	Seat Material	Price (inc. VAT)
A	0006275	NB, ASME	3/4"	3/4"	2.75"	2.125"	Bronze	£143.76
B	0006276	NB, ASME and HV	3/4"	3/4"	2 13/16"	2.375"	Metal	£207.63
B	0006277	NB, ASME and HV	1"	1"	3.125"	2.375"	Metal	£233.00

WATTS -

Ball And Relief Valves

Style	Model	Min. Temp.	Ball Material	Body Material	Outlet Connection	Outlet Type	Port Type	Seat Material	Shaft Material	Price (inc. VAT)
A	3/4 LFBRVM1PXPXB-125	-	-	-	-	-	-	-	-	£115.74
A	BRVP-80 3/4	-	Viton	Bronze	-	Pex Crimped	Full	PTFE	Brass	£164.66
B	LFBRVP-125 3/4	-	Stainless Steel	Lead Free Copper Silicon Alloy	-	Crimped	Reduced	Virgin PTFE	Stainless Steel	£221.07
C	LFBRVPXPXP-125 3/4	-	Stainless Steel	Lead Free Copper Silicon Alloy	-	Crimped	Reduced	Virgin PTFE	Stainless Steel	£221.07
D	LFBRVT-125 3/4	-40° F	Stainless Steel	Lead Free Copper Silicon Alloy	Female Threaded	-	Full	Virgin PTFE	Stainless Steel	£200.02	RFQ
E	3/4 LBRVM1SXSXB-125	-40 Degree F	Chrome Plated Brass	Bronze	-	Socket	Full	PTFE	Brass	£115.74
A	3/4 LFBRVM1SXSXC-125	-40 Degree F	Chrome Plated Brass	Bronze	-	Socket	Full	PTFE	Brass	£115.74
F	3/4 LFBRVM1TXTXC-125	40 Degree F	Chrome Plated Brass	Bronze	-	Female Threaded	Full	PTFE	Brass	£115.74
G	3/4 LFBRVM1PXPXC-125	40 Degree F	Chrome Plated Brass	Bronze	-	Crimped	Full	PTFE	Brass	£115.74
H	3/4 LFBRVM1TXTXC-80	40 Degree F	Chrome Plated Brass	Bronze	-	Female Threaded	Full	PTFE	Brass	£115.74
I	3/4 LFBRVM1PXPXP-125	40 Degree F	Chrome Plated Brass	Bronze	-	Crimped	Full	PTFE	Brass	£115.74
A	3/4 LBRVM1TXTXB-125	40 Degree F	Chrome Plated Brass	Bronze	-	Female Threaded	Full	PTFE	Brass	£115.74
A	3/4 LFBRVM1SXSXP-80	40 Degree F	Chrome Plated Brass	Bronze	-	Crimped	Full	PTFE	Brass	£115.74
J	LFBRVS-125 3/4	99° F	Stainless Steel	Lead Free Copper Silicon Alloy	Socket	-	Full	Virgin PTFE	Stainless Steel	£200.02	RFQ

WATTS -

Vacuum Relief Valves

Style	Model	Spring Material	Body Material	Inlet Size	Inlet Type	Max. Temp.	Max. Working Pressure	Outlet Size	Pressure Range	Price (inc. VAT)
A	LFN36M1 1/2	-	Lead Free Brass	1/2"	Male Threaded	250° F	15 PSI	-	-	£97.23
A	N360-Z1	-	Brass	3/4"	Male Threaded	250° F	200 PSI	3/4"	-	£118.38
B	1/2 LF N36	302 Stainless Steel	Lead-Free Brass	1/2"	MNPT	-	-	1/2"	Up to 15 psi Steam/Up to 200 psi Water	£68.23
C	LFN36-M1-3/4"	Stainless Steel	Lead Free Brass	3/4"	Male Threaded	250 Degree F	-	3/4"	0 to 200 psi	£66.86

WATTS -

Safety Relief Valve, 3/4 Inch Size, 75 psi

Model	Item	Price (inc. VAT)
375M1-075	BP2MQT	£112.61

WATTS -

Dual Control Regulator And Relief Valve, 1/2 Inch Inlet, 6.9 Bar Pressure

Model	Item	Price (inc. VAT)
1450F-STD 1/2	BP6CBY	£290.55

WATTS -

Adjustable Relief Valve 3/4 x 1/2 175psi

Model	Item	Price (inc. VAT)
530-3/4	AC3WLC	£58.38

WATTS -

Safety Relief Valve 2 x 2-1/2 Inch 30 Psi

Model	Item	Price (inc. VAT)
2 740	AC8KTW	£1,204.16

WATTS -

Tankless Water Heater Kit, Copper Silicon Alloy, 150 Psi Max. Op Pressure

Model	Item	Price (inc. VAT)
LFTWHG2-FT-HC-RV	CU9TWE	£165.98

WATTS -

Fire Pump Relief Valve, Ansi End Connection

Model	Item	Price (inc. VAT)
F1116 8	BZ9JUA	£18,500.24	See Details

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WATTS Relief Valves

ASME complaint safety, vacuum relief and steam safety relief valves featuring a stainless-steel spring to control the opening / closing of the seal whenever the spring force exceeds a preset value, and then discharging fluid at the outlet

Steam Safety Relief Valves

Steam Relief Valves

Iron Safety Relief Valve

Relief Valves

1450F Series, Iron/Bronze Combination Fill and Relief Valve

LF530C Series, Lead-Free Brass Calibrated Adjustable Relief Valve

Safety Relief Valve, Bronze

Bronze Steam Safety Relief Valves

Ball And Relief Valves

Vacuum Relief Valves

Safety Relief Valve, 3/4 Inch Size, 75 psi

Dual Control Regulator And Relief Valve, 1/2 Inch Inlet, 6.9 Bar Pressure

Adjustable Relief Valve 3/4 x 1/2 175psi

Safety Relief Valve 2 x 2-1/2 Inch 30 Psi

Tankless Water Heater Kit, Copper Silicon Alloy, 150 Psi Max. Op Pressure

Fire Pump Relief Valve, Ansi End Connection

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Brands

WATTS Relief Valves ASME complaint safety, vacuum relief and steam safety relief valves featuring a stainless-steel spring to control the opening / closing of the seal whenever the spring force exceeds a preset value, and then discharging fluid at the outlet

Safety Relief Valve, 3/4 Inch Size, 75 psi

Dual Control Regulator And Relief Valve, 1/2 Inch Inlet, 6.9 Bar Pressure

Adjustable Relief Valve 3/4 x 1/2 175psi

Safety Relief Valve 2 x 2-1/2 Inch 30 Psi

Tankless Water Heater Kit, Copper Silicon Alloy, 150 Psi Max. Op Pressure

Fire Pump Relief Valve, Ansi End Connection

We are here to help!

Looking for a part not listed here?

Explore More

WATTS Relief Valves

ASME complaint safety, vacuum relief and steam safety relief valves featuring a stainless-steel spring to control the opening / closing of the seal whenever the spring force exceeds a preset value, and then discharging fluid at the outlet