All Categories > Systems > Foam Systems Accessories > CPSV1
The Chemguard pressure-sustaining valve is used in balanced pressure foam proportioning systems to maintain a set system pressure. The valve is used in combination with the foam concentrate pump to maintain consistent upstream pressure regardless of system demand.
The basic valve is a single seated, line pressure operated, diaphragm actuated, pilot controlled globe valve. The valve is sealed by means of a corrosion resistant seat and resilient, rectangular seat disc. These and other parts are replaceable in the field; and all such service and adjustments are possible without removing the valve from the system pipework. The stem of the valve is guided top and bottom by integral bushings. All internal and external ferrous surfaces are coated with a high quality, two part epoxy primer; the exterior then receives a coat of baked enamel paint. The pilot control system includes a direct acting, normally closed, spring loaded diaphragm actuated pilot valve with the stem guided between the diaphragm assembly and seat disc. To ensure precise pressure regulation, the appropriately rated pilot valve is field adjustable within the pressure control range of the spring. Such adjustment is not to exceed a ratio of 6:1. The valve is operationally and hydrostatically tested with the appropriate pilot in place prior to shipping and carries a one-year limited warranty against failure due to defects in workmanship or materials.
Model CPSV (Brass)