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  • 009 / LF009

    009 / LF009

    The Watts 009 Backflow Preventer is a Reduced Pressure Principle Assembly. Production of the Watts 009 began in 1989. All versions of the Watts 009 in the 1/2"-2" sized are bronze bodies. The check modules and relief stem assembly of the Watts 009 can be removed through a single cover. The checks are modular, All seats are replaceable, and check springs are contained. There is spring tension on the cover from the relief valve spring. There have been several modifications over the years but all versions are similar in construction. Repair parts are different for each model. The Watts 009 was the original model that was produced from 1989-1991. It was modified in 1991 to the Watts 009 M1 model in sizes 1 1/4"-2" which was produced from 1991-1992. In the Watts 009 M1 model there was a change in the check seat dimensions. The Watts 009 M2 design began in 1992. The major difference in the  Watts 009 M2 design was the downsizing of the body and the internal repair parts. Internal checks are mostly plastic. The 1/2" model Watts 009 was introduced in 1992. The 3/4" 009M3 began in 1998. A model U009 was developed in sizes 1/2"-2". This unit incorporates a union end into the body. The U009A utilizes the same union with a 90 degree elbow for an up and down piping orientation. The model Watts 009 PC is a polymer coated bronze assembly available in sizes 3/4"-2". The model SS 009 is available in 1/4"-1" sizes and is similar to the Watts 009 except the body is made of stainless steel instead of bronze.

     

  • SS009

    SS009

    The Watts Backflow Preventer 009 is a Reduced pressure assembly. Production of the Watts 009 began in 1989. All versions of the Watts 009 in the 1/2"-2" are bronze bodies. The check modules and relief stem assembly of the Watts 009 can be removed through a single cover. The checks are a modular, All seats of the are replaceable, and check springs are contained. There is spring tension on the cover from the relief valve spring. There have been several modifications over the years but all versions are similar in construction. Repair parts are different for each model. The Watts 009 was the original model that was produced from 1989-1991. It was modified in 1991 to the Watts 009 M1 model in sizes 1 1/4"-2" which was produced from 1991-1992. In the Watts 009 M1 model there was a change in the check seat dimensions. The Watts 009 M2 design began in 1992. The major difference in the  Watts 009 M2 design was the downsizing of the body and the internal repair parts. Internal checks are mostly plastic. The 1/2" model Watts 009 was introduced in 1992. The 3/4" 009M3 began in 1998. A model U009 was developed in sizes 1/2"-2". This unit incorporates a union end into the body. The U009A utilizes the same union with a 90 degree elbow for an up and down piping orientation. The model Watts 009 PC is a polymer coated bronze assembly available in sizes 3/4"-2". The model SS 009 is available in 1/4"-1" sizes and is similar to the Watts 009 except the body is made of stainless steel instead of bronze.

     

  • 919 / LF919

    919 / LF919

    Watts 919 RPZ (reduced pressure assembly) was first produced in 2003. The body is made of a bronze alloy. The checks have a poppet style check. Check covers unscrew from the body. The check springs are not contained. There will be tension from the relief valve spring as you remove the cover.

     

  • 909 / LF909 / LF909HW

    909 / LF909 / LF909HW

    Watts Series LF909 Lead Free* Reduced Pressure Zone Assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of a Lead Free* Cast Copper Silicon Alloy body construction, bronze ball valve shutoffs, and bronze test cocks. Series LF909 features a "air-in/water-out" design principle for protection during emergency combined backsiphonage and backpressure conditions. It is ideal for health hazard cross-connections or for containment at the service line entrance. Check with local water authorities for installation requirements. Maximum Working Pressure: 175ps

     

  • 909 (2.5"-10") / LF909 (2.5"-10")

    909 (2.5"-10") / LF909 (2.5"-10")

    Watts 909 Backflow Preventer is a reduced pressure backflow assembly (Watts RPZ 909). Production of the Watts 909 backflow preventer began in 1979. The Watts 909 3/4"-3" size body is constructed of bronze. The Watts 909 2 1/2"-10" size check body is cast iron with a fused epoxy coating. The Watts 909 2 1/2" and 3" are available in bronze and cast iron. Watts 909 also has a hot water option available in the 3/4"-2" which is good up to 210° F. The model Watts 909M1 was introduced in 1989 in the 3/4"-2" and 4"-10" sizes. The 3/4"-2" size was changed by having the nipple between the body and the shutoff cast into the body instead of being a separate nipple. The Watts 909 design had a bronze relief valve body. In the Watts 909M1 modification the relief body was changed to fused epoxy coated cast iron. The relief valve spring assembly was also changed. In the 8"-10" 909M1 sizes there was a change in the relief valve body. The relief valve utilizes the internal parts of the 4"-6" 909 unit. In the Watts 909M1 series the relief valve rubber repair parts will be the same in 4"-10". The check seats are replaceable and springs are contained when the covers are removed. The 2 1/2"-10" has an external relief valve sensing line and the relief valve body can be detached from the check body on these sizes.

     

  • 957 / 957N / 957Z

    957 / 957N / 957Z

    Watts 957 is a reduced pressure assembly. This model manufactured by Hunter from 2000-2002. In 2002 Watts bought the Hunter models and began production as the model 957. This model is also the Ames model C400. The body is stainless steel tubing. To access the check components a movable sleeve is mounted over the access cover. On the 2 1/2"-6" size the sleeve slides over the body to access the check components. On the 8"-10" size the sleeve is attached by two grooved couplings. The checks are modular and constructed of Noryl plastic. The check has a torsion spring which is contained when the check module is removed from the body. The check spring must be extended and controlled with a pin or screwdriver to replace the check disc. The check disc may be either an EPDM or silicone rubber. The body length dimensions may be up to 1" shorter than shown on versions produced before 2003.

     

  • 994 / 994BLT / 994HBM

    994 / 994BLT / 994HBM

    Watts 994 is a reduced pressure assembly. Production began in 1998. In 1997 the Watts Company purchased the Ames Company and began marketing the Ames 4000 SS as the Watts 994. The body is made of stainless steel with a single access cover. The check design is modular. In the 2 1/2"-6" size the check assemblies are not field repairable and the whole check module must be replaced for repair. The check is made of glass filled Noryl and is cam operated. The relief valve is attached to the check body by threads and uses an external sensing line.

     

  • 990 / 992

    990 / 992

    Watts rpz 990 is a reduced pressure assembly. The Watts 990 Backflow Preventer was discontinued in 1997. The checks are made of ductile iron with fused epoxy coating. The check is a toggle linkage mechanism. The check springs are contained. The spring tension must be released to repair the assembly. The bronze check seats are replaceable but a seat removal tool is needed. Vulcanized clapper plates are used to seal the checks. The relief valve body bronze and is attached to the check body by a threaded pipe connection. The relief seat is replaceable. An external relief valve sensing line is used. The shutoffs on the 992 had flange dimensions different than a standard sized shutoff.

    This series is currently Obsolete!

     

  • 995

    995

    Watts 995 RPZ (reduced pressure assembly). Discontinued in 2003. In the 1/2"-1 1/2"" size the body is nickel plated copper. There is a single cover for the checks. The checks are modular. Springs are contained and the seats are replaceable. The check modules thread into the body. The relief valve is attached to the check body by a union and utilizes an external sensing line. The 3"-6" size have a stainless steel body. The checks are modular and are accessed from a single access cover. The checks are repairable and screw into the body. The relief valve is pressurized from an external sensing line.

    .This model is currenlty obsolete! Some parts do remain, please call for availability:

    Chicago Office: (866) 836-8692

    Dallas Office: (866) 562-7740

    Detroit Office: (844) 727-8742

    Indianapolis Office: (877) 353-4386

    Denver Office: (844) 622-0186