The Forbes Marshall spring loaded disc check valve is of wafer pattern designed to be sandwiched between flanges and are compatible with both PN and ANSI flanges.
They are compact in design as compared to the conventional swing and lift type of disc check valves. These valves offer a tight shutoff and are available in a large range of sizes.

Features

 Available in high-temperature springs, heavy duty springs, and spring-less configuration
 Stainless steel, Viton or EPDM seats available as per the media in which the valves are used.

Benefits

 Use of disc check valves at right locations, such as outlet of a float trap in a closed discharge system can help avoid severe issues such as water logging in the process equipment.
 Disc check valves can save costly equipment such as flowmeters, control valves and strainers which are susceptible to damage because of the backflow.

1.FMDCVANSI Forbes Marshall Disc Check Valve (Metal-to-Metal / Soft / Viton Seating) Compatible to ANSI Flanges

The Forbes Marshall disc check valves compatible to ANSI flanges, FMDCVANSI, are of the wafer pattern designed to be sandwiched between flanges. They are suitable for use on a wide range of fluids for applications in process lines, hot water systems, steam and condensate system etc. ace-to face F dimensions conform to EN558 part 1 series 52 Sizes and Pipe Connections 15, 20, 25, 32, 40, 50, 65, 80, 100 suitable for installation NB between ANSI class 150 and 300