Where should a vacuum breaker be placed?

A pressure vacuum breaker should be placed a minimum of 12 inches above all downstream outlets and pipings.

How to maintain a vacuum breaker?

Periodically inspect the vacuum breaker for signs of wear / damage and replace it if necessary.

How to install a vacuum breaker?

Shut the water supply off and drain the system to remove the existing water.Place the vacuum breaker as per the instructions and general codes & regulations.Test the vacuum breaker to make sure that it is working properly.Fill up the system by turning on the water supply again.

Vacuum Breakers

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Vacuum breakers are used in the chemical and pharmaceutical industries to prevent vacuum formation in a piping system. They allow air to enter the system when the pressure drops. Raptor...Read more

WATTS -

Atmospheric Vacuum Breakers

Style	Model	Inlet Size	Max. Temp.	Max. Working Pressure	Min. Temp.	Outlet Size	Price (inc. VAT)
A	LF8AC	-	-	-	-	-	£85.54
B	LF8A	-	-	-	-	-	£103.60
C	LF8	-	-	-	-	-	£87.17
D	LF8C	-	-	-	-	-	£99.01
E	LFN388-C 1/4	1/4"	180 Degree F	8.6 Bar	33 Degree F	1/4"	£177.57
F	LFN388 1/4	1/4"	180 Degree F	8.6 Bar	33 Degree F	1/4"	£115.81
G	LFN388-SC 1/4	1/4"	180 Degree F	8.6 Bar	33 Degree F	1/4"	£157.93
H	LFN388 3/8	3/8"	180° F	125 psi	33° F	3/8"	£134.38
G	LFN388-SC 3/8	3/8"	180 Degree F	8.6 Bar	33 Degree F	3/8"	£227.39
I	LFN388-C 3/8	3/8"	180 Degree F	8.6 Bar	33 Degree F	3/8"	£240.04

WATTS -

Pressure Vacuum Breaker Backflow Preventers

Style	Model	Inlet Size	Price (inc. VAT)
A	767FR 1 1/2	1 1/2"	£953.07	RFQ
A	767FR 1	1"	£334.76	RFQ
A	767FR 2	2"	£1,070.98	RFQ

WATTS -

Freeze Resistant Vacuum Breakers

Style	Model	Thread Type	Inlet Size	Inlet Thread Type	Max. Temp.	Max. Working Pressure	Min. Temp.	Outlet Size	Seat Material	Price (inc. VAT)
A	LF800M4FR 1 1/2	FPT	1 1/2"	FPT	140° F	150 psi	33° F	1-1/2"	Plastic	£914.27	RFQ
B	LF800M4FR 1/2	FPT	1/2"	FPT	140° F	150 psi	33° F	1/2"	Plastic	£297.49	RFQ
C	LF800M4FR 1 1/4	FPT	1 1/4"	FPT	140° F	150 psi	33° F	1-1/4"	Plastic	£798.95	RFQ
D	LF800M4FR 3/4	NPT	3/4"	-	140 Degree F	10.3 Bar	33 Degree F	3/4"	Plastic	£229.54	RFQ
A	LF800M4FR 2	NPT	2"	NPT	140° F	150 psi	33° F	2"	Plastic	£1,110.98	RFQ
A	LF800M4FR 1	NPT	1"	NPT	140° F	150 psi	33° F	1"	Engineered Plastic	£253.68	RFQ

WATTS -

Triple Check Vacuum Breakers

Style	Model	Inlet Size	Outlet Connection	Outlet Size	Outlet Type	Price (inc. VAT)
A	9BD-NPTM 1/4	1/4"	Male Threaded	1/4"	Male Threaded	£576.88
A	9BD-NPTMXFLARE	3/8"	Flare Joint	3/8"	Flare Joint	£551.62
A	9BD-NPTM 3/8	3/8"	Male Threaded	3/8"	Male Threaded	£529.08

WATTS -

Anti Siphon Vacuum Breakers

Style	Model	Mfr. Series	Body Material	Inlet Connection	Min. Temp.	Operation	Outlet Connection	Outlet Size	Outlet Type	Price (inc. VAT)
A	188A 2	188A	Brass	Female Threaded	-	Non Continuous	Female Threaded	2"	Female Threaded	£700.43
A	188A 1 1/2	188A	Brass	Female Threaded	-	Non Continuous	Female Threaded	1-1/2"	Female Threaded	£450.57
A	188A 1	188A	Brass	Female Threaded	-	Non Continuous	Female Threaded	1"	Female Threaded	£181.07
A	188A 1 1/4	188A	Brass	Female Threaded	-	Non Continuous	Female Threaded	1-1/4"	Female Threaded	£249.86
B	188A 3/4	188A	Brass	-	-	Non Continuous	-	3/4"	Female Threaded	£140.38
C	288A-MB 3/4	288A	Brass	-	-	Non Continuous	-	3/4"	Female Threaded	£168.42
D	288A-Z39 1/2	288A	Brass	Female Threaded	-	Non Continuous	Female Threaded	1/2"	Female Threaded	£123.52
E	288AC-MB	288A	Brass	Female Threaded	-	Non Continuous	Female Threaded	3/8"	Female Threaded	£156.51
F	800M4-QT 1 1/4	800M4QT	Bronze	Female Threaded	33° F	Continuous	Female Threaded	1-1/4"	Female Threaded	£623.14	RFQ
G	800M4QT-SH 1/2	800M4QT	Bronze	Female Threaded	33° F	Continuous	Female Threaded	1/2"	Female Threaded	£356.53	RFQ
H	800M4-QT 2	800M4QT	Bronze	Female Threaded	33° F	Continuous	Female Threaded	2"	Female Threaded	£802.18	RFQ
F	800M4QT-SH 1 1/2	800M4QT	Bronze	Female Threaded	33° F	Continuous	Female Threaded	1-1/2"	Female Threaded	£882.18	RFQ
I	U800M4QT 3/4	800M4QT	Bronze	-	33 Degree F	Continuous	-	3/4"	Union Joint	£357.92	RFQ
I	800M4-QT 1 1/2	800M4QT	Bronze	-	33 Degree F	Continuous	-	1-1/2"	Female Threaded	£667.06	RFQ
I	800M4QT-QC 3/4	800M4QT	Bronze	-	33 Degree F	Continuous	-	3/4"	Female Threaded	£342.48	RFQ
J	U800M4QT 1	800M4QT	Bronze	Female Threaded	33° F	Continuous	Union Joint	1"	Union Joint	£369.87	RFQ
K	800M4QT 1/2	800M4QT	Bronze	-	33 Degree F	Continuous	-	1/2"	Female Threaded	£313.00	RFQ
L	800M4QT-QC 1	800M4QT	Bronze	Quick Connect	33° F	Continuous	Female Threaded	1"	Female Threaded	£353.70	RFQ
F	800M4QT-SH 2	800M4QT	Bronze	Female Threaded	33° F	Continuous	Female Threaded	2"	Female Threaded	£908.17	RFQ
I	800M4QT-SH 3/4	800M4QT	Bronze	-	33 Degree F	Continuous	-	3/4"	Female Threaded	£356.53	RFQ
M	800M4QT-QC 1/2	800M4QT	Bronze	Quick Connect	33° F	Continuous	Female Threaded	1/2"	Female Threaded	£367.05	RFQ
F	800M4QT-SH 1 1/4	800M4QT	Bronze	Female Threaded	33° F	Continuous	Female Threaded	1-1/4"	Female Threaded	£732.70	RFQ
F	800M4QT-SH 1	800M4QT	Bronze	Female Threaded	33° F	Continuous	Female Threaded	1"	Female Threaded	£368.46	RFQ
N	LF008PCQT 3/4	LF008PCQT	Lead Free Bronze	-	33 Degree F	Continuous	-	3/4"	Female Threaded	£1,006.40	RFQ
O	LF008PCQT 1/2	LF008PCQT	Lead Free Bronze	Female Threaded	33° F	Continuous	Female Threaded	1/2"	Female Threaded	£611.76

WATTS -

Vacuum Breakers

Style	Model	Item	Price (inc. VAT)
A	LFFRVB-B	Atmospheric Vacuum Breaker	£106.39	RFQ
B	LFFRVB-A	Atmospheric Vacuum Breaker	£95.20	RFQ
B	2" LF800M4-QT	Pressure Vacuum Breaker	£6,548.34
C	1 1/2 LF800M4-QT	Vacuum Breaker	£1,911.61
D	1 1/4 800M4-QT	Vacuum Breaker	£1,218.32
E	3/4 LFNF8	Vacuum Breaker	£151.67
F	3/4 8FR	Vacuum Breaker	£139.84
E	3/4 NF8	Vacuum Breaker	£122.78
G	3/4 188A	Vacuum Breaker	£286.55
H	2 LF288AM2	Vacuum Breaker	£1,796.49
G	2 188A	Vacuum Breaker	£1,415.69
I	1/2 LF800M4-FR	Vacuum Breaker	£839.43
J	1/2 800M4-QT	Vacuum Breaker	£605.99
G	1 188A	Vacuum Breaker	£367.84
K	1 1/4 LF800M4-QT	Vacuum Breaker	£1,549.78
B	1 1/4 188A	Vacuum Breaker	£507.00
L	800M4-FR	Vacuum Breaker	£987.90
G	1 1/2 188A	Vacuum Breaker	£912.16
D	1 1/2 LF800M4-FR	Vacuum Breaker	£2,114.03
M	3/4 LF8BI	Vacuum Breaker	£19.86
D	1 1/2 800M4-QT	Vacuum Breaker	£1,505.52
N	3/4 8P	Vacuum Breaker	£51.02
O	3/4 8A	Vacuum Breaker	£123.16
D	2 LF800M4-FR	Vacuum Breaker	£2,183.63
D	2 800M4-QT	Vacuum Breaker	£1,549.78

WATTS -

Hose Connection Vacuum Breakers

Style	Model	Thread Type	Body Material	Inlet Size	Max. Temp.	Max. Working Pressure	Mfr. Series	Min. Temp.	Outlet Size	Price (inc. VAT)
A	LF8C 3/4	GHT	Lead Free Brass	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£80.70
B	NF-8 3/4	GHT	Brass	3/4"	180 Degree F	8.6 Bar	NF8	33 Degree F	3/4"	£50.00
C	8A 3/4	GHT	Brass	3/4"	180 Degree F	8.6 Bar	8	33 Degree F	3/4"	£53.45
D	S-8C-F	GHT	Brass	1/2"	180° F	125 psi	8	33° F	1/2"	£120.02
E	S-8C 3/8	GHT	Brass	3/8"	180° F	125 psi	8	33° F	3/8"	£103.86
F	NF-8I	GHT	Brass	3/4"	180° F	125 psi	NF8	33° F	3/4"	£60.00
B	LFNF8 3/4	GHT	Lead Free Brass	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£68.17
G	LF8AC 3/4	GHT	Lead Free Copper Silicon Alloy	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£108.09
A	LF8BC 3/4	GHT	Lead Free Brass	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£78.94
A	8BC 3/4	GHT	Brass	3/4"	180 Degree F	8.6 Bar	8	33 Degree F	3/4"	£62.81
H	LF8 3/4	GHT	Lead Free Brass	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£52.33
I	8Z-4	GHT	Brass	3/4"	180° F	125 psi	8	-	3/4"	£87.73
J	LF8FR 3/4	GHT	Lead Free Brass	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£49.28
H	8 3/4	GHT	Brass	3/4"	180 Degree F	8.6 Bar	8	33 Degree F	3/4"	£41.81
A	8BI-C	GHT	Brass	3/4"	180 Degree F	8.6 Bar	8	33 Degree F	3/4"	£67.37
G	8AC 3/4	GHT	Brass	3/4"	180 Degree F	8.6 Bar	8	33 Degree F	3/4"	£85.64
J	8FR 3/4	GHT	Brass	3/4"	180 Degree F	8.6 Bar	8FR	-	3/4"	£39.40
K	S8-PC-NPSM	GHT	Brass	1/2"	180 Degree F	8.6 Bar	8	33 Degree F	1/2"	£143.17
A	8C 3/4	GHT	Brass	3/4"	180 Degree F	8.6 Bar	8	33 Degree F	3/4"	£64.58
C	LF8A 3/4	GHT	Lead Free Copper Silicon Alloy	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£66.81
L	LF8B 3/4	GHT	Lead Free Brass	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£18.03
L	8B 3/4	GHT	Brass	3/4"	180 Degree F	8.6 Bar	8	33 Degree F	3/4"	£14.40
M	8P 3/4	GHT	Reinforced Thermoplastic	3/4"	180 Degree F	8.6 Bar	8	33 Degree F	3/4"	£12.47
N	S-8 1/2	GHT	Brass	1/2"	180 Degree F	8.6 Bar	8	33 Degree F	1/2"	£99.66
L	LF8BI 3/4	GHT	Lead Free Brass	3/4"	180 Degree F	8.6 Bar	LF8	33 Degree F	3/4"	£10.26

WATTS -

Dual Check Vacuum Breakers

Style	Model	Min. Temp.	Inlet Connection	Inlet Size	Operation	Outlet Size	Valve Type	Inlet Type	Item	Price (inc. VAT)
A	LFCLFNLF9 3/8	-	Swivel Joint	3/8"	-	-	Quarter Turn Ball Valve	Swivel Joint	Vacuum Breaker	£169.84
B	3/8 LF N9C - 3/8"	-	-	-	-	-	-	-	Dual Check Vacuum Breaker	£265.99
C	LFNLF9-HT 3/4	-	-	3/4"	-	-	Quarter Turn Ball Valve	Swivel Joint	Vacuum Breaker	£176.15
D	LFN9CD	-	-	-	-	-	-	-	Dual Check Vacuum Breaker	£333.49
E	LFN9C 3/8	33° F	Female Threaded	3/8"	Continuous	3/8"	No Shutoff Valve	Female Threaded	Vacuum Breaker	£114.60
F	LFN9C-M5 3/8	33° F	Female Threaded	3/8"	Continuous	3/8"	No Shutoff Valve	Female Threaded	Vacuum Breaker	£337.58
C	LFNLF9 3/8	33 Degree F	-	3/8"	Non Continuous	3/8"	No Shutoff Valve	Male Threaded	Vacuum Breaker	£163.07
G	LFN9-CD-C 3/4	33 Degree F	-	3/4"	Continuous	3/4"	No Shutoff Valve	Female Threaded	Vacuum Breaker	£334.76
H	LFN9-Z 1/4	33 Degree F	-	1/4"	Continuous	1/4"	No Shutoff Valve	Female Threaded	Vacuum Breaker	£263.88

WATTS -

Freeze Resistant Pressure Vacuum Breaker Backflow Preventers

Style	Model	Inlet Size	Price (inc. VAT)
A	767FR 1 1/4	1 1/4"	£847.80	RFQ
A	767FR 3/4	3/4"	£319.32	RFQ

SLOAN -

Vacuum Breakers

Style	Model	Size	Price (inc. VAT)
A	0323326	-	£56.46	RFQ
A	5323010	-	£33.09	RFQ
A	3323192	-	£4.44	RFQ
A	0393066	-	£227.40	RFQ
A	0393096	-	£138.31	RFQ
A	0393088	-	£138.31	RFQ
A	0393068	-	£142.88	RFQ
A	0393063	-	£158.73	RFQ
A	0393055	-	£124.32	RFQ
A	0393056	-	£92.40	RFQ
A	0393053	-	£176.70	RFQ
A	0393012	-	£166.20	RFQ
A	3301446	-	£25.04	RFQ
A	0323235	-	£46.50	RFQ
A	0323034	-	£66.96	RFQ
A	0323003	-	£51.25	RFQ
A	5323007	-	£33.09	RFQ
A	3396080	-	£381.24	RFQ
A	3396078	-	£121.78	RFQ
A	3396079	-	£234.47	RFQ
A	3396077	-	£115.94	RFQ
A	0393004	-	£33.09	RFQ
A	0393080	-	£94.35	RFQ
A	0393076	-	£64.83	RFQ
A	0393049	-	£69.54	RFQ

WATTS -

WATTS LF288A-DM 1/2

Model	Item	Price (inc. VAT)
LF288A-DM 1/2	CC3ECU	£169.84

MORSE DRUM -

Vacuum Breaker, Epdm

Model	Item	Price (inc. VAT)
1040-72	CD8ZCB	£31.87

MORSE DRUM -

Vacuum Breaker, Viton

Model	Item	Price (inc. VAT)
1040-73	CD8ZCC	£45.51

CASH ACME -

Vacuum Breaker, 3/4 Inch Size, GHT Connection, Brass, 1 5/16 Inch Width

Model	Item	Price (inc. VAT)
17148-0000LF	CJ3RZK	£10.56

MCDONNELL & MILLER -

Vacuum Breaker

Model	Item	Price (inc. VAT)
317354	CJ3RZL	£169.28

WATTS -

Hose Drop Vacuum Breaker, 1 Inch Size, Brass

Model	Item	Price (inc. VAT)
912HP 1	BZ2XUA	£934.83

WATTS -

Anti-Siphon Vacuum Breaker Backflow Preventer, 1/2 Inch Size, Brass

Model	Item	Price (inc. VAT)
288AC-Z32 1/2	BZ3ZWH	£155.10	See Details

GUARDIAN EQUIPMENT -

Vacuum Breaker, for L110 In-Line Vacuum Breaker

Model	Item	Price (inc. VAT)
VB	CV7AZC	£223.99	See Details

VULCAN HART -

Vacuum Breaker

Model	Item	Price (inc. VAT)
00-881760	AP4VTW	£567.61	See Details

VULCAN HART -

Vacuum Breaker Kit

Model	Item	Price (inc. VAT)
00-857015-00001	AP4TNE	£460.79	See Details

VULCAN HART -

Compartment, Vacuum Breaker

Model	Item	Price (inc. VAT)
00-856658-00001	AP4TKU	£175.74	See Details

123

Vacuum Breakers

Vacuum breakers are designed to prevent back-siphonage of water due to the generation of vacuum in water drainage systems. Raptor Supplies offers a wide range of vacuum breakers from brands like Apollo, Watts, Hayward, Wilkins, Morse, Plast-O-Matic, Sharkbite and Chicago Faucets. Apollo 38-100, 38-200, 38-500 and 38LF-100 Series vacuum breakers are ideal for a maximum pressure of 150 PSI and are available in 1/4 to 2 inch pipe sizes. The brand's 38-100 Series vacuum breakers prevent backflow of polluted water in portable water supply by breaking the vacuum generated during drainage of water. These ASSE 1001 certified breakers feature a heat-resistant silicone seat disc and a check valve with an air inlet. Watts ANSI, ASSE and NSF compliant vacuum breakers also have a maximum pressure withstanding rating of 150 PSI. These vacuum breakers are available in brass, bronze, chrome plated brass, lead free bronze, lead free brass and polished chrome body material variants.

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Vacuum Breakers

Atmospheric Vacuum Breakers

Pressure Vacuum Breaker Backflow Preventers

Freeze Resistant Vacuum Breakers

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Anti Siphon Vacuum Breakers

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Dual Check Vacuum Breakers

Freeze Resistant Pressure Vacuum Breaker Backflow Preventers

Vacuum Breakers

WATTS LF288A-DM 1/2

Vacuum Breaker, Epdm

Vacuum Breaker, Viton

Vacuum Breaker, 3/4 Inch Size, GHT Connection, Brass, 1 5/16 Inch Width

Vacuum Breaker

Hose Drop Vacuum Breaker, 1 Inch Size, Brass

Anti-Siphon Vacuum Breaker Backflow Preventer, 1/2 Inch Size, Brass

Vacuum Breaker, for L110 In-Line Vacuum Breaker

Vacuum Breaker

Vacuum Breaker Kit

Compartment, Vacuum Breaker

Vacuum Breakers

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Functionality

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Categories

Brands

Vacuum Breakers

WATTS LF288A-DM 1/2

Vacuum Breaker, Epdm

Vacuum Breaker, Viton

Vacuum Breaker, 3/4 Inch Size, GHT Connection, Brass, 1 5/16 Inch Width

Vacuum Breaker

Hose Drop Vacuum Breaker, 1 Inch Size, Brass

Anti-Siphon Vacuum Breaker Backflow Preventer, 1/2 Inch Size, Brass

Vacuum Breaker, for L110 In-Line Vacuum Breaker

Vacuum Breaker

Vacuum Breaker Kit

Compartment, Vacuum Breaker

Vacuum Breakers

Frequently Asked Questions

Where should a vacuum breaker be placed?

How to maintain a vacuum breaker?

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