Backflow Preventers

WATTS -

757DCDA Series Double Check Detector Backflow Preventer Assemblies

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Style	Model	Body Pattern	Body Style	Inlet Connection	Inlet Size	Inlet Type	Max. Temp.	Max. Working Pressure	Min. Temp.	Price (inc. VAT)
A	757-DCDA PIVXBFG-GPM 4	-	Straight	-	4"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£15,718.57	RFQ
B	757DCDA-BFG-LM 8	-	Inline	-	8"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£14,946.67	RFQ
B	757DCDA-OSY-LM 8	-	Inline	-	8"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£14,594.47	RFQ
C	757DCDA-OSY-LM 6	-	Inline	-	6"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£8,025.32	RFQ
B	757NDCDA-OSY-LM 3	-	N-Pattern	-	3"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£7,481.97	RFQ
B	757NDCDA-OSY-LM 4	-	N-Pattern	-	4"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£8,774.22	RFQ
B	757NDCDA-OSY-LM 8	-	N-Pattern	-	8"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£20,938.87	RFQ
B	757DCDA-BFG-LM 4	-	Inline	-	4"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£6,504.50	RFQ
B	757NDCDA-BFG-LM 6	-	N-Pattern	-	6"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£12,609.34	RFQ
B	757DCDA-OSY-LM 3	-	Inline	-	3"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£5,785.75	RFQ
B	757NDCDA-BFG-LM 3	-	N-Pattern	-	3"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£7,848.51	RFQ
B	757DCDA-OSY-LM 10	-	Inline	-	10"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£17,205.89	RFQ
B	757DCDA-OSY-LM 2 1/2	-	Inline	-	2-1/2"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£5,423.52	RFQ
B	757NDCDA-BFG-GPM	-	N-Pattern	-	8"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£21,431.53	RFQ
D	757DCDA-BFG-GPM	-	Inline	-	8"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£15,060.24	RFQ
D	757DCDA-BFG-CFM	-	Inline	-	8"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£15,060.24	RFQ
C	757DCDA-OSY-LM 4	-	Inline	-	4"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£6,158.07	RFQ
B	757NDCDA-OSY-LM 2 1/2	-	N-Pattern	-	2-1/2"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£7,102.48	RFQ
B	757NDCDA-OSY-LM 6	-	N-Pattern	-	6"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£12,234.19	RFQ
B	757DCDA-BFG-LM 3	-	Inline	-	3"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£6,133.61	RFQ
E	757DCDA-OSY-GPM 6	-	Inline	-	6"	Flanged Joint	140 Degree F	12.1 Bar	33 Degree F	£8,106.21	RFQ
B	757NDCDA-BFG-LM 8	-	N-Pattern	-	8"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£21,315.69	RFQ
B	757NDCDA-BFG-LM 4	-	N-Pattern	-	4"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£9,137.89	RFQ
B	757NDCDA-BFG-LM 2 1/2	-	N-Pattern	-	2-1/2"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£7,469.01	RFQ
B	757DCDA-BFG-LM 6	-	Inline	-	6"	Grooved Joint	140 Degree F	12.1 Bar	33 Degree F	£8,384.67	RFQ

WATTS -

4000B Series Reduced Pressure Zone Backflow Preventer Assemblies

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Style	Model	Body Pattern	Inlet Size	Price (inc. VAT)
A	4000B-HC 2	-	-	£4,356.93	RFQ
B	U4000B-S 1 1/2	Inline	1 1/2"	£2,098.69	RFQ
C	4000BM2-S 1	Straight	1"	£867.51	RFQ
D	4000B-LBV 3/4	Straight	3/4"	£701.49	RFQ
E	4000BM2 1	Straight	1"	£780.54	RFQ
E	4000B 1 1/4	Straight	1 1/4"	£1,222.55	RFQ
F	4000B 1/2	Straight	1/2"	£496.64	RFQ
G	4000B-OSY 2	Straight	2"	£3,748.89	RFQ
H	4000BM3-S 3/4	Straight	3/4"	£731.67	RFQ
I	4000BM3-LBV 3/4	Straight	3/4"	£512.45	RFQ
C	4000BM2-S 1 1/4	Straight	1 1/4"	£1,335.40	RFQ
J	4000BM2-S 2	Straight	2"	£1,745.06	RFQ
K	4000B-S 1/2	Straight	1/2"	£538.32	RFQ
L	4000B-LBV 1/2	Straight	1/2"	£384.54	RFQ
D	4000B-LBV 2	Straight	2"	£1,174.39	RFQ
M	4000BM3 3/4	Straight	3/4"	£661.23	RFQ
N	4000B-LBV 1 1/2	Straight	1 1/2"	£1,020.59	RFQ
O	4000B-LBV 1 1/4	Straight	1 1/4"	£945.11	RFQ
D	4000B-LBV 1	Straight	1"	£635.36	RFQ
E	4000B 2	Straight	2"	£1,517.94	RFQ
M	4000BM2 3/4	Straight	3/4"	£661.23	RFQ
C	4000BM2-S 1 1/2	Straight	1 1/2"	£1,463.33	RFQ

WATTS -

3000SS Series Double Check Detector Backflow Preventer Assemblies

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Style	Model	Inlet Connection	Inlet Size	Outlet Connection	Seat Material	Price (inc. VAT)
A	3000SS-DOSY-CFM 12	-	-	-	-	£28,117.67	RFQ
B	3000SS-DNRS-CFM 3	-	-	-	-	£6,136.50	RFQ
C	3000SS-RHOSY-GPM 4	-	-	-	-	£8,979.79	RFQ
C	3000SS-DOSY-GPM 3	-	-	-	-	£6,283.12	RFQ
D	3000SS-DOSY-FXG-GPM 10	-	-	-	-	£21,792.63	RFQ
E	3000SS-PIVXOSY-CFM 3	-	-	-	-	£6,283.12	RFQ
C	3000SS-DOSY-GPM 4	-	-	-	-	£6,797.73	RFQ
C	3000SS-DOSY-GPM 8	-	-	-	-	£15,947.13	RFQ
F	3000SS-DOSY-GPM 10	-	-	-	-	£21,792.63	RFQ
G	3000SS-DOSY-LM 3	-	-	-	-	£6,178.18	RFQ
H	3000SS-DNRS-GPM 3	-	-	-	-	£6,136.50	RFQ
I	3000SS-DNRS-GPM 6	-	-	-	-	£9,596.47	RFQ
J	3000SS-DNRS-CFM 10	-	-	-	-	£23,359.06	RFQ
K	3000SS-DNRS-LM 8	-	-	-	-	£17,312.40	RFQ
L	3000SS-DNRS-GPM 8	-	-	-	-	£17,423.44	RFQ
M	3000SS-LG-GPM 8	-	-	-	-	£12,117.74	RFQ
G	3000SS-DOSY-LM 2 1/2	-	-	-	-	£5,912.25	RFQ
G	3000SS-DOSY-LM 6	-	-	-	-	£9,321.88	RFQ
G	3000SS-DOSY-LM 8	-	-	-	-	£16,955.58	RFQ
N	3000SS-DOSY-CFM 3	-	-	-	-	£6,283.12	RFQ
F	3000SS-DOSY-GPM 2 1/2	-	-	-	-	£6,017.20	RFQ
O	3000SS-DOSY-CFM 10	-	-	-	-	£21,792.63	RFQ
M	3000SS-SR-LG-CFM 4	-	-	-	-	£9,860.89	RFQ
P	3000SS-LG-LM 4	-	-	-	-	£5,071.34	RFQ
C	3000SS-F-OSY-CFM 6	-	-	-	-	£9,425.39	RFQ

WATTS -

C500 Reduced Pressure Detector Backflow Preventer Assemblies

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Style	Model	Body Pattern	Inlet Connection	Inlet Size	Outlet Connection	Price (inc. VAT)
A	C500N-OSY-CFM 2 1/2	-	-	-	-	£5,548.58	RFQ
A	C500N-DOSY-G 4	-	-	-	-	£8,190.62	RFQ
B	C500Z-DOSY-LM 6	-	-	-	-	£12,018.56	RFQ
B	C500Z-DOSY-LM 3	-	-	-	-	£6,853.77	RFQ
C	C500N-DOSY-LM 6	-	-	-	-	£12,018.56	RFQ
D	C500-OSY-CFM 10	-	-	-	-	£24,454.83	RFQ
E	C500Z-DOSY-G 3	-	-	-	-	£6,973.09	RFQ
A	C500N-OSY-GPM 2 1/2	-	-	-	-	£5,548.58	RFQ
A	C500N-OSY-GPM 3	-	-	-	-	£6,172.43	RFQ
A	C500N-DOSY-G 2 1/2	-	-	-	-	£6,270.18	RFQ
C	C500N-DOSY-LM 2 1/2	-	-	-	-	£6,146.56	RFQ
E	C500Z-DOSY-C 4	-	-	-	-	£8,190.62	RFQ
A	C500N-OSY-CFM 4	-	-	-	-	£7,249.10	RFQ
A	C500N-OSY-CFM 3	-	-	-	-	£6,172.43	RFQ
E	C500Z-OSY-GPM 2 1/2	-	-	-	-	£5,548.58	RFQ
A	C500N-DOSY-G 3	-	-	-	-	£6,973.09	RFQ
A	C500N-DOSY-G 6	-	-	-	-	£12,139.31	RFQ
E	C500Z-DOSY-C 3	-	-	-	-	£6,973.09	RFQ
E	C500Z-DOSY-G 2 1/2	-	-	-	-	£6,270.18	RFQ
E	C500Z-DOSY-G 6	-	-	-	-	£12,139.31	RFQ
F	DC500-OSY-LM 2 1/2	-	-	-	-	£5,577.34	RFQ
G	C500-DOSY-LM 6	-	-	-	-	£10,776.59	RFQ
E	C500Z-DOSY-C 6	-	-	-	-	£12,139.31	RFQ
E	C500Z-DOSY-C 2 1/2	-	-	-	-	£6,270.18	RFQ
E	C500Z-OSY-GPM 3	-	-	-	-	£6,172.43	RFQ

WATTS -

M300NA Series Double Check Detector Backflow Preventer Assemblies

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Style	Model	Inlet Connection	Inlet Size	Outlet Connection	Price (inc. VAT)
A	M300NA-OSY-G 2 1/2	-	-	-	£6,073.24	RFQ
B	M300NA-OSY-LM 2 1/2	-	-	-	£5,946.76	RFQ
C	M300NA-OSY-C 3	-	-	-	£6,698.54	RFQ
D	M300NA-BFG-C 4	-	-	-	£8,251.00	RFQ
E	M300NA-BFG-C 2 1/2	-	-	-	£6,505.93	RFQ
F	M300NA-OSY-G 4	-	-	-	£7,819.75	RFQ
G	M300NA-BFG-G 4	-	-	-	£8,251.00	RFQ
H	M300NA-OSY-C 4	-	-	-	£7,819.75	RFQ
I	M300NA-OSY-LM 4	-	-	-	£7,690.37	RFQ
J	M300NA-BFG-C 3	-	-	-	£7,132.66	RFQ
K	M300NA-OSY-LM 3	-	-	-	£6,569.17	RFQ
L	M300NA-BFG-LM 2 1/2	-	-	-	£6,380.88	RFQ
M	M300NA-OSY-G 3	-	-	-	£6,698.54	RFQ
N	M300NA-OSY-C 2 1/2	-	-	-	£6,073.24	RFQ
O	M300NA-BFG-G 3	-	-	-	£7,132.66	RFQ
P	M300NA-BFG-G 2 1/2	-	-	-	£6,505.93	RFQ
Q	M300N(A)-DOSY-G 3	Flanged Joint	3"	Flanged Joint	£16,551.99	RFQ
Q	M300N(A)-DOSY-C 3	Flanged Joint	3"	Flanged Joint	£16,682.47	RFQ
Q	M300N(A)-DOSY-G 4	Flanged Joint	4"	Flanged Joint	£19,477.06	RFQ
Q	M300N(A)-DOSY-C 4	Flanged Joint	4"	Flanged Joint	£19,591.43	RFQ
Q	M300N(A)-DOSY-G 2 1/2	Flanged Joint	2 1/2"	Flanged Joint	£15,025.72	RFQ
Q	M300N(A)-DOSY-C 2 1/2	Flanged Joint	2 1/2"	Flanged Joint	£15,149.35	RFQ
R	M300NA-BFG-LM 3	Grooved Joint	3"	Grooved Joint	£7,004.73	RFQ
S	M300NA-BFG-LM 4	Grooved Joint	4"	Grooved Joint	£8,124.48	RFQ

WATTS -

709DCDA Series Double Check Detector Backflow Preventer Assemblies

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Style	Model	Bypass Size	Inlet Size	Item	Max. Temp.	Max. Working Pressure	Min. Temp.	Outlet Size	Valve Type	Price (inc. VAT)
A	709DCDA-OSY-GPM	-	-	Backflow Preventer	-	-	-	-	-	£13,126.07
B	709DCDA-DOSY-GPM 10	-	10"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	10"	Outside Stem And Yoke Gate Valve	£35,524.95	RFQ
B	709DCDA-DOSY-GPM 4	-	4"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	4"	Outside Stem And Yoke Gate Valve	£10,274.93	RFQ
B	709DCDA-DOSY-GPM 6	-	6"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	6"	Outside Stem And Yoke Gate Valve	£15,074.60	RFQ
B	709DCDA-DOSY-CFM 6	-	6"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	6"	Outside Stem And Yoke Gate Valve	£15,074.60	RFQ
B	709DCDA-DOSY-CFM 3	-	3"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	3"	Outside Stem And Yoke Gate Valve	£9,684.15	RFQ
B	709DCDA-DOSY-GPM 3	-	3"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	3"	Outside Stem And Yoke Gate Valve	£9,684.15	RFQ
B	709DCDA-DOSY-CFM 8	-	8"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	8"	Outside Stem And Yoke Gate Valve	£27,509.71	RFQ
A	709DCDA-OSY-CFM	-	-	Backflow Preventer	-	-	-	-	-	£13,126.07
B	709DCDA-DOSY-GPM 8	-	8"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	8"	Outside Stem And Yoke Gate Valve	£27,509.71	RFQ
B	709DCDA-OSY-CFM 3	-	3"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	3"	Outside Stem And Yoke Gate Valve	£9,050.24	RFQ
B	709DCDA-DOSY-CFM 4	-	4"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	4"	Outside Stem And Yoke Gate Valve	£9,602.20	RFQ
B	709DCDA-OSY-CFM 4	-	4"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	4"	Outside Stem And Yoke Gate Valve	£9,602.20	RFQ
B	709DCDA-LF-GPM 8	-	8"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	8"	No Shutoff Valve	£21,101.90	RFQ
B	709DCDA-LF-GPM 10	-	10"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	10"	No Shutoff Valve	£27,248.91	RFQ
B	709DCDA-OSY-GPM 8	-	8"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	8"	Outside Stem And Yoke Gate Valve	£27,509.71	RFQ
B	709DCDA-OSY-CFM 6	-	6"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	6"	Outside Stem And Yoke Gate Valve	£14,088.51	RFQ
B	709DCDA-OSY-GPM 6	-	6"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	6"	Outside Stem And Yoke Gate Valve	£14,088.51	RFQ
B	709DCDA-OSY-CFM 8	-	8"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	8"	Outside Stem And Yoke Gate Valve	£27,509.71	RFQ
B	709DCDA-OSY-CFM 10	-	10"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	10"	Outside Stem And Yoke Gate Valve	£35,524.95	RFQ
B	709DCDA-OSY-GPM 10	-	10"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	10"	Outside Stem And Yoke Gate Valve	£35,524.95	RFQ
B	709DCDA-DOSY 10 3/4GPM	-	10"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	10"	Outside Stem And Yoke Gate Valve	£35,524.95	RFQ
B	709DCDA-DOSY-CFM 10	-	10"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	10"	Outside Stem And Yoke Gate Valve	£38,011.99	RFQ
B	709DCDA-DOSY-GPM3/4 6	-	6"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	6"	Outside Stem And Yoke Gate Valve	£14,088.51	RFQ
B	709DCDA-DOSY-GPM3/4 3	-	3"	Double Check Valve Assembly	110 Degree F	12.1 Bar	33 Degree F	3"	Outside Stem And Yoke Gate Valve	£9,684.15	RFQ

WATTS -

909RPDA Series Reduced Pressure Detector Backflow Preventer Assemblies

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Style	Model	Inlet Size	Max. Temp.	Max. Working Pressure	Min. Temp.	Outlet Size	Type	Valve Type	Price (inc. VAT)
A	909RPDA-DOSY-GPM 2 1/2	2-1/2"	140 Degree F	12.1 Bar	33 Degree F	2-1/2"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£11,526.96	RFQ
A	909RPDA-OSY-GPM 2 1/2	2-1/2"	140 Degree F	12.1 Bar	33 Degree F	2-1/2"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£10,773.73	RFQ
B	909RPDA-LF-CFM 3	3"	140 Degree F	12.1 Bar	33 Degree F	3"	Valve to Accessory	No Shutoff Valve	£8,700.93	RFQ
A	909RPDA-DOSY-GPM 3	3"	140 Degree F	12.1 Bar	33 Degree F	3"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£13,111.04	RFQ
C	SR909RPDA-OSY-CFM 4	4"	140° F	175 PSI	33° F	4"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£17,207.73	RFQ
D	909RPDA-LF-GPM 4	4"	140 Degree F	12.1 Bar	33 Degree F	4"	Valve to Accessory	No Shutoff Valve	£10,878.65	RFQ
C	SR909RPDA-OSY-GPM 4	4"	140° F	175 PSI	33° F	4"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£17,207.73	RFQ
C	SR909RPDA-OSY-GPM 6	6"	140° F	175 PSI	33° F	6"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£25,006.38	RFQ
D	909RPDA-LF-CFM 6	6"	140 Degree F	12.1 Bar	33 Degree F	6"	Kit	No Shutoff Valve	£15,809.14	RFQ
C	SR909RPDA-OSY-CFM 6	6"	140° F	175 PSI	33° F	6"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£25,006.38	RFQ
E	SR909RPDA-OSY-GPM 8	8"	140° F	175 PSI	33° F	8"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£41,819.27	RFQ
B	909RPDAM1-LF-CFM 8	8"	140° F	175 PSI	33° F	8"	Kit	No Shutoff Valve	£26,437.09	RFQ
E	SR909RPDA-OSY-CFM 8	8"	140° F	175 PSI	33° F	8"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£41,819.27	RFQ
B	909RPDAM1-LF-GPM 8	8"	140° F	175 PSI	33° F	8"	Valve to Accessory	No Shutoff Valve	£26,437.09	RFQ
E	SR909RPDA-OSY-CFM 10	10"	140° F	175 PSI	33° F	10"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£55,386.27	RFQ
B	909RPDAM1-LF-CFM 10	10"	140° F	175 PSI	33° F	10"	Valve to Accessory	No Shutoff Valve	£35,012.21	RFQ
E	SR909RPDA-OSY-GPM 10	10"	140° F	175 PSI	33° F	10"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£55,386.27	RFQ

ZURN -

375ST Reduced Pressure Principle Assembly Backflow Preventers

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Style	Model	Price (inc. VAT)
A	34-375ST	£2,569.51
A	1-375ST	£2,800.39
A	12-375ST	£2,157.29

ZURN -

950XL Double Check Valve Backflow Preventors

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Style	Model
A	34-950XL	RFQ
A	112-950XL	RFQ
A	1-950XL	RFQ
A	2-950XL	RFQ

WATTS -

3000B Series Double Check Detector Backflow Preventer Assemblies

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Style	Model	Price (inc. VAT)
A	3000BM1-OSY-LM 2	£6,468.55	RFQ
B	3000B-OSY-CFM 2	£6,569.17	RFQ
C	3000B-OSY-LM 2	£6,468.55	RFQ
D	3000BM1-OSY-GPM 2	£6,570.62	RFQ
E	3000BM1-OSY-CFM 2	£6,570.62	RFQ
F	3000BM1-DOSY-CFM 2	£8,515.49	RFQ
G	3000BM1-DOSY-GPM 2	£8,515.49	RFQ

APOLLO VALVES -

4ALF-100 Series Double Check Valves
Apollo 4ALF-100 Series double check valves are used in water supply systems to prevent backflow and contamination. They ensure the safe and reliable flow of potable water by preventing the reverse flow of contaminated water, safeguarding public health and water quality. These double check valves have lead-free bronze construction for enhanced safety in potable water systems, meeting regulatory standards and protecting public health. They feature a FNPT connection that offers compatibility with standard pipe fittings, simplifying installation and allowing for easy integration into existing plumbing systems. These 4ALF-100 Series valves can operate at temperatures ranging from - 33 to 180 degrees F.

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Style	Model	Height	Length	Size	Width	Price (inc. VAT)
A	4ALF104A2F	3.5"	12.75"	3/4"	3"	£289.91
A	4ALF103A2F	3.25"	11"	1/2"	2.5"	£294.36
A	4ALF105A2F	4"	14.63"	1"	3.25"	£338.88
A	4ALF106A2F	4.5"	18.625"	1.25"	4.75"	£749.26
A	4ALF107A2	4.5"	18.75"	1.5"	4.75"	£823.82
A	4ALF108A2F	5"	21.125"	2"	5.38"	£939.91

WATTS -

Ames Colt Series LFC500 Reduced Pressure Detector Assemblies

A

B

Style	Model	Inlet Size	Max. Temp.	Price (inc. VAT)
A	LFC500-OSY-GPM 2 1/2	2 1/2"	110° F	£5,343.03	RFQ
A	LFC500-OSY-CFM 2 1/2	2 1/2"	110° F	£5,343.03	RFQ
A	LFC500-OSY-CFM 3	3"	110° F	£5,903.64	RFQ
A	LFC500-OSY-GPM 3	3"	110° F	£5,903.64	RFQ
A	LFC500-OSY-GPM 4	4"	110° F	£6,960.15	RFQ
A	LFC500-DOSY-C 4	4"	110° F	£7,862.87	RFQ
A	LFC500-OSY-CFM 4	4"	110° F	£6,960.15	RFQ
B	LFC500-DOSY-LM 4	4"	110° F	£7,742.15	RFQ
A	LFC500-OSY-GPM 6	6"	110° F	£10,218.87	RFQ
A	LFC500-OSY-CFM 6	6"	110° F	£10,218.87	RFQ
A	LFC500-DOSY-C 6	6"	110° F	£11,547.07	RFQ
A	LFC500-DOSY-C 8	8"	140° F	£18,170.67	RFQ
A	LFC500-OSY-CFM 8	8"	110° F	£18,170.67	RFQ
A	LFC500-OSY-GPM 8	8"	110° F	£18,170.67	RFQ
A	LFC500-OSY-CFM 10	10"	110° F	£25,921.04	RFQ
A	LFC500-OSY-GPM 10	10"	110° F	£25,921.04	RFQ

WATTS -

Ames Colt Series LFC500N Reduced Pressure Detector Assemblies

A

Style	Model	Inlet Size	Max. Temp.	Price (inc. VAT)
A	LFC500N-OSY-CFM 4	4"	110° F	£7,683.21	RFQ
A	LFC500N-OSY-CFM 6	6"	110° F	£11,390.40	RFQ
A	LFC500N-DOSY-LM 6	6"	140° F	£12,740.17	RFQ
A	LFC500N-DOSY-C 8	8"	140° F	£19,798.16	RFQ
A	LFC500N-OSY-GPM 8	8"	110° F	£19,798.16	RFQ
A	LFC500N-OSY-GPM 10	10"	110° F	£29,601.52	RFQ

WATTS -

719 Series Double Check Valve Assemblies
Watts 719 Series double check valve assemblies are used in plumbing systems to prevent the backflow of water and protect the potable water supply from contamination. These backflow preventers feature bronze alloy construction for structural rigidity and corrosion resistance. They are further coupled with elastomers that resist the effects of chloramine. These backflow preventers have a separate access and a top-entry check valve arrangement that facilitates convenient maintenance procedures. They have a maximum working pressure of 175 psi (12.06 bar).

A

B

Style	Model	Inlet Connection	Inlet Size	Inlet Thread Type	Max. Temp.	Max. Working Pressure	Min. Temp.	Outlet Connection	Outlet Size	Price (inc. VAT)
A	719-AQT-R10 3/4	-	3/4"	-	180 Degree F	12.1 Bar	33 Degree F	-	3/4"	£786.99	RFQ
B	719-LF 1 1/4	-	1-1/4"	-	180 Degree F	12.1 Bar	33 Degree F	-	1-1/4"	£677.77	RFQ
A	719QTS 2	-	2"	-	180 Degree F	12.1 Bar	33 Degree F	-	2"	£1,380.67	RFQ
B	719QT-S-R10 3/4	-	3/4"	-	180 Degree F	12.1 Bar	33 Degree F	-	3/4"	£633.91	RFQ
B	719QT-S-R10 1/2	-	1/2"	-	180 Degree F	12.1 Bar	33 Degree F	-	1/2"	£633.91	RFQ
B	719-LF 3/4	Female Threaded	3/4"	FPT	180° F	175 PSI	33° F	Female Threaded	-	£434.11	RFQ
B	719-QT-LH 1	Female Threaded	1"	-	180° F	175 PSI	33° F	Female Threaded	-	£537.62	RFQ
B	719-LF 1/2	Female Threaded	1/2"	FPT	180° F	175 PSI	33° F	Female Threaded	-	£398.19	RFQ
B	U719-QT-S 2	Union Joint	2"	NPT	180° F	175 PSI	33° F	Union Joint	-	£1,644.44	RFQ

FEBCO -

Master Series 856ST Double Check Detector Backflow Preventer Assemblies

A

B

C

D

E

Style	Model	Inlet Size	Price (inc. VAT)
A	856STDCDA-OSY-GPM 2 1/2	2 1/2"	£5,095.80	RFQ
B	856STDCDA-LG-GPM 2 1/2	2 1/2"	£3,188.28	RFQ
A	856STDCDA-DOSY-GPM 2 1/2	2 1/2"	£5,095.80	RFQ
A	856STDCDA-OSY-CFM 2 1/2	2 1/2"	£5,095.80	RFQ
A	856STDCDA-DOSY-CFM 2 1/2	2 1/2"	£5,095.80	RFQ
C	856STDCDA-DOSY-LM 2 1/2	2 1/2"	£5,058.38	RFQ
A	856STDCDA-DOSY-GPM 3	3"	£6,202.64	RFQ
A	856STDCDA-DOSY-CFM 3	3"	£6,202.64	RFQ
C	856STDCDA-DOSY-LM 3	3"	£6,163.82	RFQ
D	856STDCDA-LG-GPM 3	3"	£3,876.82	RFQ
A	856STDCDA-OSY-GPM 3	3"	£6,202.64	RFQ
A	856STDCDA-OSY-CFM 3	3"	£6,202.64	RFQ
A	856STDCDA-OSY-CFM 4	4"	£6,400.99	RFQ
A	856STDCDA-DOSY-GPM 4	4"	£6,400.99	RFQ
E	856STDCDA-DOSY-LM 4	4"	£6,363.62	RFQ
A	856STDCDA-OSY-GPM 4	4"	£6,400.99	RFQ
A	856STDCDA-DOSY-CFM 4	4"	£6,400.99	RFQ
D	856STDCDA-LG-GPM 4	4"	£4,001.87	RFQ
D	856STDCDA-LG-GPM 6	6"	£6,255.82	RFQ
A	856STDCDA-OSY-GPM 6	6"	£10,006.12	RFQ
A	856STDCDA-DOSY-GPM 6	6"	£10,006.12	RFQ
A	856STDCDA-OSY-CFM 6	6"	£10,006.12	RFQ
A	856STDCDA-DOSY-CFM 6	6"	£10,006.12	RFQ
E	856STDCDA-DOSY-LM 8	8"	£19,739.04	RFQ
A	856STDCDA-OSY-CFM 8	8"	£19,775.86	RFQ

WATTS -

Ames Colt Series C500N Reduced Pressure Detector Assemblies

A

Style	Model	Inlet Size	Price (inc. VAT)
A	C500N-DOSY-C 4	4"	£8,190.62	RFQ
A	C500N-DOSY-G 8	8"	£18,676.51	RFQ
A	C500N-OSY-LM 8	8"	£18,570.94	RFQ
A	C500N-DOSY-C 8	8"	£18,676.51	RFQ

WATTS -

957N Series Reduced Pressure Zone Assemblies

A

B

C

D

E

F

Style	Model	Inlet Size	Inlet Type	Max. Temp.	Max. Working Pressure	Min. Temp.	Outlet Size	Type	Valve Type	Price (inc. VAT)
A	957N-OSY 2 1/2	2 1/2"	Flanged Joint	140° F	175 PSI	33° F	2-1/2"	Kit	Outside Stem And Yoke Gate Valve	£6,586.43	RFQ
B	957N-DNRS 3	3"	Flanged Joint	140° F	175 PSI	33° F	3"	Kit	Non Rising Stem Gate Valve	£13,129.71	RFQ
C	957N-NRS 3	3"	Flanged Joint	110 Degree F	12.1 Bar	33 Degree F	3"	Valve to Accessory	Non Rising Stem Gate Valve	£5,229.46	RFQ
D	957N-BFG 3	3"	Grooved Joint	110 Degree F	12.1 Bar	33 Degree F	3"	Valve to Accessory	Gear Operated Butterfly Valve	£7,911.73	RFQ
E	957N-OSY 3	3"	Flanged Joint	140° F	175 PSI	33° F	3"	Kit	Outside Stem And Yoke Gate Valve	£7,194.47	RFQ
D	957N-BFG 4	4"	Grooved Joint	110 Degree F	12.1 Bar	33 Degree F	4"	Valve to Accessory	Gear Operated Butterfly Valve	£9,622.33	RFQ
D	957N-NRS 6	6"	Flanged Joint	110 Degree F	12.1 Bar	33 Degree F	6"	Valve to Accessory	Non Rising Stem Gate Valve	£10,612.75	RFQ
D	957N-BFG 6	6"	Grooved Joint	110 Degree F	12.1 Bar	33 Degree F	6"	Valve to Accessory	Gear Operated Butterfly Valve	£15,530.28	RFQ
F	957N-OSY 6	6"	Flanged Joint	110 Degree F	12.1 Bar	33 Degree F	6"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£14,117.23	RFQ
F	957N-OSY 8	8"	Flanged Joint	110 Degree F	12.1 Bar	33 Degree F	8"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£21,572.27	RFQ
D	957N-NRS 8	8"	Flanged Joint	110 Degree F	12.1 Bar	33 Degree F	8"	Valve to Accessory	Non Rising Stem Gate Valve	£14,008.01	RFQ
F	957N-OSY 10	10"	Flanged Joint	110 Degree F	12.1 Bar	33 Degree F	10"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£25,572.07	RFQ

WATTS -

LF909 Series Reduced Pressure Zone Assemblies

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

Style	Model	Body Material	Inlet Size	Inlet Type	Max. Temp.	Max. Working Pressure	Mfr. Series	Min. Temp.	Outlet Size	Price (inc. VAT)
A	LF909M1-DOSY-FS	-	-	-	-	-	-	-	-	£22,660.17
B	LF909-DOSY-FS	-	-	-	-	-	-	-	-	£3,808.11
C	LF909-DNRS-FS	-	-	-	-	-	-	-	-	£6,294.34
D	LF909-DNRS-FS	-	-	-	-	-	-	-	-	£4,816.50
B	LF909-DOSY-FS	-	-	-	-	-	-	-	-	£4,290.37
E	LF909-DOSY-FS	-	-	-	-	-	-	-	-	£5,275.20
F	LF909-DOSY-FS	-	-	-	-	-	-	-	-	£12,268.64
D	LF909-DNRS-FS	-	-	-	-	-	-	-	-	£5,119.30
G	LF909-DOSY 6	Cast Iron	6"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	6"	£20,234.11	RFQ
H	LF909-DOSY 4	Cast Iron	4"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	4"	£13,923.18	RFQ
I	LF909-DNRS 2 1/2	Cast Iron	2-1/2"	Flanged Joint	110 Degree F	12.06 Bar	LF909 Large	33 Degree F	2-1/2"	£5,257.35	RFQ
J	LF909-QT-S-FDA 3	Cast Iron	3"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	3"	£14,147.44	RFQ
J	LF909-QT-S-FDA 4	Cast Iron	4"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	4"	£17,903.20	RFQ
K	LF909-LF 3	Cast Iron	3"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	3"	£6,963.03	RFQ
L	LF909-OSY-S-FDA 6	Cast Iron	6"	Flanged Joint	110 Degree F	12.1 Bar	LF909 Large	33 Degree F	6"	£22,479.56	RFQ
M	LF909-NRS 4	Cast Iron	4"	Flanged Joint	110 Degree F	12.06 Bar	LF909 Large	33 Degree F	4"	£7,830.52	RFQ
N	LF909-LF 6	Cast Iron	6"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	6"	£12,646.76	RFQ
O	LF909-NRS-S-FDA 4	Cast Iron	4"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	4"	£7,830.52	RFQ
L	LF909-OSY-S-FDA 2 1/2	Cast Iron	2-1/2"	Flanged Joint	110 Degree F	12.1 Bar	LF909 Large	33 Degree F	2-1/2"	£10,533.66	RFQ
O	LF909-NRS-S-FDA 6	Cast Iron	6"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	6"	£12,607.83	RFQ
P	LF909-DOSY 3	Cast Iron	3"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	3"	£11,141.73	RFQ
N	LF909-LF 4	Cast Iron	4"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	4"	£8,702.35	RFQ
Q	LF909-NRS 6	Cast Iron	6"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	6"	£12,607.83	RFQ
I	LF909-DNRS 3	Cast Iron	3"	Flanged Joint	110 Degree F	12.06 Bar	LF909 Large	33 Degree F	3"	£5,635.30	RFQ
P	LF909-OSY 3	Cast Iron	3"	Flanged Joint	110° F	175 PSI	LF909 Large	33° F	3"	£11,141.73	RFQ

WATTS -

909RPDA Series Reduced Pressure Detector Assemblies

A

B

C

D

E

Style	Model	Inlet Size	Max. Temp.	Max. Working Pressure	Min. Temp.	Outlet Size	Type	Valve Type	Price (inc. VAT)
A	D909RPDA-OSY-CFM 2 1/2	2-1/2"	140 Degree F	12.1 Bar	33 Degree F	2-1/2"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£11,526.96	RFQ
A	909RPDA-OSY-CFM 2 1/2	2-1/2"	140 Degree F	12.1 Bar	33 Degree F	2-1/2"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£10,773.73	RFQ
A	909RPDA-OSY-CFM 3	3"	140 Degree F	12.1 Bar	33 Degree F	3"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£12,251.42	RFQ
A	909RPDA-OSY-GPM 3	3"	140 Degree F	12.1 Bar	33 Degree F	3"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£12,251.42	RFQ
A	909RPDA-D0SY-CFM 3	3"	140 Degree F	12.1 Bar	33 Degree F	3"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£13,111.04	RFQ
B	909RPDA-LF-CFM 4	4"	140 Degree F	12.1 Bar	33 Degree F	4"	Kit	No Shutoff Valve	£10,878.65	RFQ
A	909RPDA-D0SY-CFM 4	4"	140 Degree F	12.1 Bar	33 Degree F	4"	Kit	Outside Stem And Yoke Gate Valve	£15,314.67	RFQ
A	909RPDA-OSY-CFM 4	4"	140 Degree F	12.1 Bar	33 Degree F	4"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£15,314.67	RFQ
A	909RPDA-OSY-GPM 4	4"	140 Degree F	12.1 Bar	33 Degree F	4"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£15,314.67	RFQ
A	909RPDA-DOSY-GPM 4	4"	140 Degree F	12.1 Bar	33 Degree F	4"	Kit	Outside Stem And Yoke Gate Valve	£16,387.06	RFQ
B	909RPDA-LF-GPM 6	6"	140 Degree F	12.1 Bar	33 Degree F	6"	Valve to Accessory	No Shutoff Valve	£15,809.14	RFQ
A	909RPDA-DOSY-GPM 6	6"	140 Degree F	12.1 Bar	33 Degree F	6"	Kit	Outside Stem And Yoke Gate Valve	£22,258.54	RFQ
A	909RPDA-OSY-GPM 6	6"	140 Degree F	12.1 Bar	33 Degree F	6"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£22,258.54	RFQ
A	909RPDA-OSY-CFM 6	6"	140 Degree F	12.1 Bar	33 Degree F	6"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£22,258.54	RFQ
C	909RPDAM1-DOSY-GPM 8	8"	140 Degree F	12.1 Bar	33 Degree F	8"	Kit	Outside Stem And Yoke Gate Valve	£39,827.23	RFQ
D	909RPDAM1-OSY-GPM 8	8"	140° F	175 PSI	33° F	8"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£37,220.82	RFQ
D	909RPDAM1-OSY-CFM 8	8"	140° F	175 PSI	33° F	8"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£37,220.82	RFQ
C	909RPDAM1-DOSY-CFM 8	8"	140 Degree F	12.1 Bar	33 Degree F	8"	Kit	Outside Stem And Yoke Gate Valve	£37,220.82	RFQ
E	909RPDAM1-LF-GPM 10	10"	140° F	175 PSI	33° F	10"	Valve to Accessory	No Shutoff Valve	£35,012.21	RFQ
D	909RPDAM1-OSY-GPM 10	10"	140° F	175 PSI	33° F	10"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£49,295.27	RFQ
C	909RPDAM1-DOSY-CFM 10	10"	140 Degree F	12.1 Bar	33 Degree F	10"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£49,295.27	RFQ
C	909RPDAM1-DOSY-GPM 10	10"	140 Degree F	12.1 Bar	33 Degree F	10"	Valve to Accessory	Outside Stem And Yoke Gate Valve	£49,295.27	RFQ

WATTS -

994 Series Reduced Pressure Zone Assemblies

A

B

C

D

E

Style	Model	Inlet Connection	Inlet Size	Inlet Type	Outlet Connection	Outlet Size	Outlet Type	Type	Valve Type	Price (inc. VAT)
A	994-NRS 3	Flanged Joint	3"	Flanged Joint	Flanged Joint	3"	Flanged Joint	Valve to Accessory	Non Rising Stem Gate Valve	£6,083.32	RFQ
B	994-DOSY 4	Flanged Joint	4"	Flanged Joint	Flanged Joint	4"	Flanged Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£7,924.69	RFQ
C	994-LF 10	Flanged Joint	10"	Flanged Joint	-	10"	-	Valve to Accessory	No Shutoff Valve	£21,119.22	RFQ
D	994-LF 8	Flanged Joint	8"	Flanged Joint	-	8"	-	Valve to Accessory	No Shutoff Valve	£16,254.35	RFQ
A	994-NRS 8	Flanged Joint	8"	Flanged Joint	Flanged Joint	8"	Flanged Joint	Valve to Accessory	Non Rising Stem Gate Valve	£19,415.48	RFQ
B	994-OSY 3	Flanged Joint	3"	Flanged Joint	Flanged Joint	3"	Flanged Joint	Kit	Outside Stem And Yoke Gate Valve	£6,695.69	RFQ
B	994-OSY 2 1/2	Flanged Joint	2 1/2"	Flanged Joint	Flanged Joint	2-1/2"	Flanged Joint	Kit	Outside Stem And Yoke Gate Valve	£5,758.43	RFQ
B	994-DOSY 2 1/2	Flanged Joint	2 1/2"	Flanged Joint	Flanged Joint	2-1/2"	Flanged Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£6,162.37	RFQ
B	994-DNRS 3	Flanged Joint	3"	Flanged Joint	Flanged Joint	3"	Flanged Joint	Valve to Accessory	Non Rising Stem Gate Valve	£6,083.32	RFQ
B	994-OSY 10	Flanged Joint	10"	Flanged Joint	Flanged Joint	10"	Flanged Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£28,111.55	RFQ
B	994-OSY 8	Flanged Joint	8"	Flanged Joint	Flanged Joint	8"	Flanged Joint	Kit	Outside Stem And Yoke Gate Valve	£20,628.03	RFQ
A	994-NRS 6	Flanged Joint	6"	Flanged Joint	Flanged Joint	6"	Flanged Joint	Valve to Accessory	Non Rising Stem Gate Valve	£11,091.40	RFQ
C	994-LF 6	Flanged Joint	6"	Flanged Joint	-	6"	-	Valve to Accessory	No Shutoff Valve	£9,182.47	RFQ
B	994-OSY 4	Flanged Joint	4"	Flanged Joint	Flanged Joint	4"	Flanged Joint	Kit	Outside Stem And Yoke Gate Valve	£7,404.34	RFQ
E	994-NRS 2 1/2	Flanged Joint	2 1/2"	Flanged Joint	Flanged Joint	2-1/2"	Flanged Joint	Valve to Accessory	Non Rising Stem Gate Valve	£5,387.60	RFQ
B	994-OSY 6	Flanged Joint	6"	Flanged Joint	Flanged Joint	6"	Flanged Joint	Kit	Outside Stem And Yoke Gate Valve	£11,782.84	RFQ
B	994-DOSY 3	Flanged Joint	3"	Flanged Joint	Flanged Joint	3"	Flanged Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£7,164.28	RFQ
B	994-OSY-GXG 6	Grooved Joint	6"	Grooved Joint	Grooved Joint	6"	Grooved Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£12,607.93	RFQ
B	994-OSY-GXG 4	Grooved Joint	4"	Grooved Joint	Grooved Joint	4"	Grooved Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£7,924.69	RFQ
B	994-OSY-GXG 2 1/2	Grooved Joint	2 1/2"	Grooved Joint	Grooved Joint	2-1/2"	Grooved Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£6,162.37	RFQ
B	994-OSY-GXG 8	Grooved Joint	8"	Grooved Joint	Grooved Joint	8"	Grooved Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£22,072.21	RFQ
B	994-OSY-GXG 3	Grooved Joint	3"	Grooved Joint	Grooved Joint	3"	Grooved Joint	Valve to Accessory	Outside Stem And Yoke Gate Valve	£7,164.28	RFQ

WATTS -

Ames Colt Series LFC500Z Reduced Pressure Detector Assemblies

A

Style	Model	Inlet Size	Price (inc. VAT)
A	LFC500Z-OSY-CFM 2 1/2	2 1/2"	£5,882.07	RFQ
A	LFC500Z-OSY-GPM 2 1/2	2 1/2"	£5,882.07	RFQ
A	LFC500Z-OSY-CFM 4	4"	£7,683.21	RFQ
A	LFC500Z-OSY-CFM 8	8"	£19,798.16	RFQ

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