Check & Relief Valves, Strainers & Drain Cocks


'Y' IN-LINE STRAINERS

Strainers with stainless steel mesh to catch particles. Filter mesh may be cleaned without removing strainer from pipeline. Compression or threaded ends as specified below. Maximum working temperature: 110°C

P/N 7532 -7538 to 16 bar
P/N 7539 -7542 to 14 bar
P/N 7543, 7544 to 12 bar
P/N 7532, 7533 are DZR (dezincification resistant brass).

Other strainers are brass. For hot or cold water, or oil.
Mesh size: 7532 and 7533: 0.28mm (280 micron). 7534 to 7544: 0.50mm (500micron).

Part No.	Description	Unit Price	Qty
7532	15 mm x 15 mm compression Y in-line strainer	£9.95
7533	22 mm x 22 mm compression Y in-line strainer	£13.98
7534	1/4"F x F (BSP parallel both ends) Y in-line strainer	£4.01
7535	3/8" F x F (BSP parallel both ends) Y in-line strainer	£3.72
7536	1/2" F x F (BSP parallel both ends) Y in-line strainer	£3.74
7537	3/4" F x F (BSP parallel both ends) Y in-line strainer	£5.68
7538	1" F x F (BSP parallel both ends) Y in-line strainer	£8.86
7539	1.1/4"F x F (BSP parallel both ends) Y in-line strainer	£13.49

Part No.	Description	Unit Price	Qty
7540	1.1/2" F x F (BSP parallel both ends) Y in-line strainer	£17.62
7541	2" F x F (BSP parallel both ends) Y in-line strainer	£29.18
7542	2.1/2" F x F (BSP parallel both ends) Y in-line strainer	£56.14
7543	3" F x F (BSP parallel both ends) Y in-line strainer	£92.43
7544	4" F x F (BSP parallel both ends) Y in-line strainer	£176.26


WATER SERVICE VACUUM RELIEF VALVE

Water service vacuum relief valve. Automatically vents a closed system, if vacuum occurs. Allows air to enter a system, relieving a vacuum condition which could syphon the water from the system and burn out a water heater or collapse a tank.

SPECIFICATION :
Maximum working pressure :	200 p.s.i. (13.8 bar)
Maximum temperature :	121°C
Size :	1/2" or 3/4" BSP male inlet connection
Venting capacity :	425 litres/minute (air)

Part No.	Description	Unit Price	Qty
13181	1/2" vacuum relief valve	£15.42
13182	3/4" vacuum relief valve	£18.46


SPRING SAFETY VALVES

Brass safety valves operated by an internal spring. The relief pressure may be adjusted by rotating the external nut. If the set pressure is exceeded the valve vents to atmosphere.

Part No.	Description	Unit Price	Qty
7512	1/2" BSP parallel male	£1.78
7513	3/4" BSP parallel male	£4.31


SWING CHECK VALVES

Brass swing check valves with metal seat and swing type metal disc. For hot or cold water, or oil. Horizontal fixing, or vertical fixing for upward flow only. For low pressure systems.

Threads: BSP paraIIel, female x female. Maximum working temperature: 100°C. Maximum working pressure: ½" to 3": 16 bar. 4": 10 bar.

Part No.	Description	Unit Price	Qty
7518	3/8" F x F swing check valve	£5.78
7462	1/2" F x F swing check valve	£2.75
7463	3/4" F x F swing check valve	£3.96
7464	1" F x F swing check valve	£6.02
7465	1.1/4"F x F swing check valve	£9.46
7466	1.1/2" F x F swing check valve	£13.42
7467	2" F x F swing check valve	£19.78
7468	2.1/2" F x F swing check valve	£35.37
7519	3" F x F swing check valve	£24.91
7520	4" F x F swing check valve	£41.09


SINGLE CHECK VALVES

Brass female x female single check valves, spring loaded. May be fitted horizontally, vertically, or obliquely.

Threads : BSP paraIIel female x BSP parallel female.
Max. working temp. : 110°C. Max.
working pressure : 1/4" to 1" 16 bar ; 1.1/4" to 2" 10 bar ; 2.1/2" to 4" 8 bar.
For hot or cold water.

Part No.	Description	Unit Price	Qty
7521	1/4" F x F single check valve	£3.36
7522	3/8" F x F single check valve	£2.92
7523	1/2" F x F single check valve	£2.82
7524	3/4" F x F single check valve	£3.83
7525	1" F x F single check valve	£5.07
7526	1.1/4"F x F single check valve	£7.92
7527	1.1/2" F x F single check valve	£9.96
7528	2" F x F single check valve	£14.98
7529	2.1/2" F x F single check valve	£33.42
7530	3" F x F single check valve	£46.63
7531	4" F x F single check valve	£74.19

Brass female x female check valves, spring loaded. May be fitted horizontally, vertically, or obliquely.

Threads : BSP parallel female x BSP parallel female.
Max. working temp : 90°C.
Max. working pressure : 1⁄2" to 1" - 16 bar, 1.1⁄4" to 2" - 10 bar.
For hot or cold water.

Part No.	Description	Unit Price	Qty
18792	1⁄2" F x F	£1.46
18793	3⁄4" F x F	£2.24
18794	1" F x F	£3.37
18795	1. 1⁄4" F x F	£4.89
18796	1. 1⁄2" F x F	£7.58
18797	2" F x F	£10.92


BACKFLOW PREVENTION DEVICES
Single Check Valves

Brass spring loaded single check valves.

Part No.	Description		Unit Price	Qty
8149	15 mm brass	1-49	£1.53
	15 mm brass	50+	£1.38
8150	22 mm brass	1-49	£2.80
	22 mm brass	50+	£2.52
8147	28 mm brass		£8.57


Double Check Valves

P/Ns 8151 and 8152 are WRAS approved.

Part No.	Description		Unit Price	Qty
8151	15 mm DZR	1-49	£3.93
	15 mm DZR	50+	£3.54
8152	22 mm DZR	1-49	£6.62
	22 mm DZR	50+	£5.96
8220	3/4" F x F DZR		£21.63
8221	1" F x F DZR		£37.38
12767	1.1/4" F x F DZR		£115.71


Double Check Valve With Isolation Valve

DZR double check value with isolation valve. WRAS approved.

	Part No.	Description		Unit Price	Qty
	15584	15 mm DZR		WAS £8.38 NOW £6.50


DRAIN COCKS
Brass and DZR drain cocks. DZR drain cocks are preferred (and/or specified) in areas where the water removes zinc from conventional brass. The lockshield prevents easy operation of the drain cock without a key. 15 mm drain cocks have a capillary male end. 1/2" and 3/4" draincocks have a BSP male parallel thread.


Type A To BS 2879

Part No.	Description		Unit Price	Qty
6921	15 mm brass	1-49	£0.91
	15 mm brass	50+	£0.82
7491	15 mm DZR		£1.31

	Part No.	Description		Unit Price	Qty
	21358	22 mm, brass		£3.12

	Part No.	Description		Unit Price	Qty
	7490	15 mm brass with lockshield		£1.17

Part No.	Description		Unit Price	Qty
6920	1/2" brass	1-49	£1.05
	1/2" brass	50+	£0.94
7496	3/4" brass		£3.10
7493	1/2" DZR		£1.58

Part No.	Description	Unit Price	Qty
7492	1/2" brass with lockshield	£1.28
7494	1/2" DZR with lockshield	£2.52


Self-Cutting

For providing a drain point on 15mm pipe systems

Part No.	Description	Unit Price	Qty
21359	15 mm, brass, self-cutting drain cock	£2.80
17036	15 mm self-cutting drain cock	£3.54


Self-Cutting Valve Adaptor

Adaptor for self-cutting valves (SCV) to fit 22 mm pipe.

	Part No.	Description		Unit Price	Qty
	21437	SCV adaptor, 22 mm		£3.12


Type B

Part No.	Description		Unit Price	Qty
6923	15 mm brass	1-49	£0.52
	15 mm brass	50+	£0.46

	Part No.	Description		Unit Price	Qty
	6922	1/2" brass		£0.98


SLUDGE COCKS

Sludge cocks made from DZR (dezincification resistant brass).

Part No.	Description	Unit Price	Qty
7545	15 mm x 15 mm compression	£9.54
7546	22 mm x 22 mm compression	£11.55


WATER SYSTEM DRAIN COMPONENT

Drain valve for water for boilers and manifolds, with ring nut and closing cap with plastic junction drain valve cover.

	Part No.	Description		Unit Price	Qty
	13180	1/2" system drain component		£5.11