Thos. Somerville Co. | Backflow Preventers

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Backflow Preventers

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: AB&A™ (4)
Apollo™ (20)
Barnes & Jones® (1)
Caleffi (2)
HOMEWERKS® (1)
Jaclo® (4)
LEGEND® (3)
Prier® (1)
Sioux Chief (1)
Ward Mfg (3)
: Air/Heat Coils for Space Heating, Process Air Heater, Shell and Tube Heat Exchanger, Make-Up Air Coils, Textile Dry Cans, Steam Boilers, Storage Heaters, Jacketed Kettles, Steam Main Zoning and One Pipe Steam Non-Electric Valve (1)
Commercial and Residential (1)
Continuous Pressure and Health Hazard (3)
For All Application (1)
For Health Hazard Applications (1)
For Non-Health Hazard Applications (2)
For Non-Health Hazard, Light Commercial and Residential Applications (1)
For Plumbing and Hydronics (1)
For non-health hazard applications in smaller supply lines, such as laboratory equipment, processing tanks, sterilizers, dairy equipment, and specifically for boiler feed lines (2)
For use on post-mix carbonated beverage equipment and dispensing equipment for tea and coffee (1)
: Lead Free Copper Silicon Alloy (8)
Brass (18)
Bronze (24)
Cast Iron (1)
PVC (4)
Forged Brass (6)
Cast Copper Silicon Alloy (18)
304 Stainless Steel (11)
Nylon (1)
Stainless Steel (5)
: 10 in L x 5-7/8 in H (2)
10-3/4 in L x 6-1/4 in H (2)
12-5/8 in L x 3 in W (1)
14-1/2 in L x 6-1/4 in H (2)
14-5/8 in L x 3-1/4 in W (1)
17-3/8 in L x 6-3/4 in H (1)
17-7/8 in L x 6-3/4 in H (2)
2 in H x 4.38 in L (3)
20-1/8 in L x 5-3/8 in W (1)
21-3/8 in L x 8-3/4 in H (2)
: Import (18)
Domestic (87)
: FGHT x MGHT (1)
Female Threaded NPT (3)
Flange Joint (3)
Male Thread (1)
Non-Rising Stem Flange (1)
OSY Flanged (1)
Grooved (3)
FNPT (33)
NPT (19)
MNPT (4)
: Black (3)
Bronze (2)
Cast Copper Silicon Alloy (19)
Epoxy Coated (1)
Fused Epoxy Coated (6)
Matte Black (1)
Polished Chrome (4)
Satin Brass (1)
Satin Nickel (1)
: Steel (3)
: 1 in (15)
1-1/2 in (12)
1-1/4 in (11)
1/2 in (17)
1/4 in (1)
2 in (8)
2-1/2 in (3)
3 in (8)
3/4 in (29)
3/8 in (8)
: 4ALF-100 (4)
4ALF-200 LBF (3)
4FP-300 (2)
4NLF-300 (1)
957-FS (3)
9D (1)
DBF (4)
DCAP (2)
DCLF4A (1)
LF009-FS (11)

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Apollo™ 4ALF3A44A DuCLF4A Backflow Preventer, 3/4 in Nominal, FNPT End Style, Bronze Body, Dual Check

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Apollo™ 4ALF3A44A DuCLF4A Backflow Preventer, 3/4 in Nominal, FNPT End Style, Bronze Body, Dual Check

Part #420616

MFG #4ALF3A44A

Apollo™ 4FPLF3A55A 4FP-300 Backflow Preventer, 1 in Nominal, FNPT End Style, Bronze Body, Dual Check

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Apollo™ 4FPLF3A55A 4FP-300 Backflow Preventer, 1 in Nominal, FNPT End Style, Bronze Body, Dual Check

Part #1281806

MFG #4FPLF3A55A

WATTS® F122766 LF909-FS Small Inline Backflow Preventer, 1-1/2 in Nominal, Male Thread End Style, Quarter-Turn Ball Valve, Copper Silicon Alloy Body, Reduced Pressure Zone, 7.5 fps Flow Rate

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WATTS® F122766 LF909-FS Small Inline Backflow Preventer, 1-1/2 in Nominal, Male Thread End Style, Quarter-Turn Ball Valve, Copper Silicon Alloy Body, Reduced Pressure Zone, 7.5 fps Flow Rate

Part #1230547

MFG #F122766

WATTS® 88004115 LF009-FS In-Line Backflow Preventer, 2 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Reduced Pressure Zone

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WATTS® 88004115 LF009-FS In-Line Backflow Preventer, 2 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Reduced Pressure Zone

Part #1216291

MFG #88004115

AB&A™ 66206 3 in PVC BackWater Valve with Riser Kit (Valve, Adapter, Riser, and Lid)

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AB&A™ 66206 3 in PVC BackWater Valve with Riser Kit (Valve, Adapter, Riser, and Lid)

Part #1273764

MFG #66206

U/M

WATTS® 0063190 BBFP Dual Check Valve, 1/2 in, Female Union, Forged Brass Body

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WATTS® 0063190 BBFP Dual Check Valve, 1/2 in, Female Union, Forged Brass Body

Part #429711

MFG #0063190

U/M

WATTS® 0386462 911 Combination Fill Valve and Backflow Preventer, 1/2 in Nominal, Union Solder x NPT End Style, Bronze Body

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WATTS® 0386462 911 Combination Fill Valve and Backflow Preventer, 1/2 in Nominal, Union Solder x NPT End Style, Bronze Body

Part #421002

MFG #0386462

U/M

Caleffi 573403A Continuous Backflow Preventer with Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check

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Caleffi 573403A Continuous Backflow Preventer with Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check

Part #420046

MFG #573403A

U/M

Jaclo® DBF-MBK Dual Backflow Preventer, FNPT End Style, Double Check Valve, Matte Black

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Jaclo® DBF-MBK Dual Backflow Preventer, FNPT End Style, Double Check Valve, Matte Black

Part #2124279

MFG #DBF-MBK

Jaclo® DBF-PCH Dual Backflow Preventer, FNPT End Style, Double Check Valve, Polished Chrome

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Jaclo® DBF-PCH Dual Backflow Preventer, FNPT End Style, Double Check Valve, Polished Chrome

Part #2124287

MFG #DBF-PCH

Apollo™ 4ALF3A44A DuCLF4A Backflow Preventer, 3/4 in Nominal, FNPT End Style, Bronze Body, Dual Check

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Apollo™ 4ALF3A44A DuCLF4A Backflow Preventer, 3/4 in Nominal, FNPT End Style, Bronze Body, Dual Check

Part #420616

MFG #4ALF3A44A

Apollo™ 4FPLF3A55A 4FP-300 Backflow Preventer, 1 in Nominal, FNPT End Style, Bronze Body, Dual Check

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Apollo™ 4FPLF3A55A 4FP-300 Backflow Preventer, 1 in Nominal, FNPT End Style, Bronze Body, Dual Check

Part #1281806

MFG #4FPLF3A55A

WATTS® F122766 LF909-FS Small Inline Backflow Preventer, 1-1/2 in Nominal, Male Thread End Style, Quarter-Turn Ball Valve, Copper Silicon Alloy Body, Reduced Pressure Zone, 7.5 fps Flow Rate

Compare

WATTS® F122766 LF909-FS Small Inline Backflow Preventer, 1-1/2 in Nominal, Male Thread End Style, Quarter-Turn Ball Valve, Copper Silicon Alloy Body, Reduced Pressure Zone, 7.5 fps Flow Rate

Part #1230547

MFG #F122766

WATTS® 88004115 LF009-FS In-Line Backflow Preventer, 2 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Reduced Pressure Zone

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WATTS® 88004115 LF009-FS In-Line Backflow Preventer, 2 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Reduced Pressure Zone

Part #1216291

MFG #88004115

AB&A™ 66206 3 in PVC BackWater Valve with Riser Kit (Valve, Adapter, Riser, and Lid)

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AB&A™ 66206 3 in PVC BackWater Valve with Riser Kit (Valve, Adapter, Riser, and Lid)

Part #1273764

MFG #66206

U/M

WATTS® 0063190 BBFP Dual Check Valve, 1/2 in, Female Union, Forged Brass Body

Compare

WATTS® 0063190 BBFP Dual Check Valve, 1/2 in, Female Union, Forged Brass Body

Part #429711

MFG #0063190

U/M

WATTS® 0386462 911 Combination Fill Valve and Backflow Preventer, 1/2 in Nominal, Union Solder x NPT End Style, Bronze Body

Compare

WATTS® 0386462 911 Combination Fill Valve and Backflow Preventer, 1/2 in Nominal, Union Solder x NPT End Style, Bronze Body

Part #421002

MFG #0386462

U/M

Caleffi 573403A Continuous Backflow Preventer with Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check

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Caleffi 573403A Continuous Backflow Preventer with Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check

Part #420046

MFG #573403A

U/M

Jaclo® DBF-MBK Dual Backflow Preventer, FNPT End Style, Double Check Valve, Matte Black

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Jaclo® DBF-MBK Dual Backflow Preventer, FNPT End Style, Double Check Valve, Matte Black

Part #2124279

MFG #DBF-MBK

Jaclo® DBF-PCH Dual Backflow Preventer, FNPT End Style, Double Check Valve, Polished Chrome

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Jaclo® DBF-PCH Dual Backflow Preventer, FNPT End Style, Double Check Valve, Polished Chrome

Part #2124287

MFG #DBF-PCH

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