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  • 950XLTDA

    950XLTDA

    Designed for installation on water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply. A test cock plug is provided to protect against fouling caused by insects, dirt and debris. Assembly shall provide protection where a potential non-health hazard exists. Body is made from bronze, and carries a UL/FM, ASSE 1048 approval for horizontal and vertical installation. Equipped with OSY shut off valves, and metered with a 3/4" 350 double check assembly.

  • 950XLTDABF

    950XLTDABF

    Designed for installation on potable water connections in fire sprinkler systems to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Model 950XLTDABF shall provide protection where a potential health hazard does not exist. Incorporates metered by-pass to detect leaks and unauthorized water use. The main body is cast from bronze, and carries a UL/FM and ASSE 1048 approval for horizontal & vertical installation. The bypass is a 3/4" 350, and the main unit has butterfly valve monitoring switches.

  • 350ADA

    350ADA

    The Wilkins 350A and 350ADA are double check assemblies. Production of the 3/4"-2" began in 2004. The 3/4"-2" use a bronze housing which holds a glass field Noryl body containing the check mechanism. The checks are inline modular design. Spring tension is contained when the checks are removed from the body. Production of the 2 1/2"-10" began in 1998. The 12" began in 2007. The 2 1/2"-12" body is made of epoxy coated ductile iron. The check springs are contained. The checks are a glass filled Noryl. Modular checks are contained in the body by clips. The spring tension is contained when the checks are removed from the body. Do not relieve spring tension when changing the check discs. The model 350 is a straight horizontal piping orientation. The model 450 is able to be changed to provide an up and down or vertical piping orientation. Repair parts will be the same in both models. In 2004 the 350 became available in an "A" model. The A model uses a grooved end valve body configuration as opposed to a flanged end valve body.

  • 350ASTDA

    350ASTDA

    Designed for installation on water lines in fire protection systems to protect against both backsiphonage and backpressure of polluted water into the potable water supply. Model 350ASTDA shall provide protection where a potential health hazard does not exist. Incorporates metered by-pass to detect leaks and unauthorized water use. Ideal for use where Lead Free* valves are required.

  • 450DA

    450DA

    The Wilkins 450 and 450DA are double check assemblies. Production of the 3/4"-2" began in 2004. The 3/4"-2" use a bronze housing which holds a glass field Noryl body containing the check mechanism. The checks are inline modular design. Spring tension is contained when the checks are removed from the body. Production of the 2 1/2"-10" began in 1998. The 12" began in 2007. The 2 1/2"-12" body is made of epoxy coated ductile iron. The check springs are contained. The checks are a glass filled Noryl. Modular checks are contained in the body by clips. The spring tension is contained when the checks are removed from the body. Do not relieve spring tension when changing the check discs. The model 350 is a straight horizontal piping orientation. The model Wilkins 450 is able to be changed to provide an up and down or vertical piping orientation. Repair parts will be the same in both models. In 2004 the 350 became available in an "A" model. The A model uses a grooved end valve body configuration as opposed to a flanged end valve body.