DFT Inc. manufactures three series' of silent check valves, each offering over 50 models to choose from. The PDC Series is specially designed for use on the discharge side of reciprocating air or gas compressors. The GLC Series are spring-assisted, center guided, in-line, flanged silent check valves.

Crispin-Multiplex Mfg. Co. produces globe and wafer silent check valves. Globe silent check valves can be mounted vertically or horizontally, and are available in sizes from 2-1/2" through 36". Wafer silent check valves are available in sizes from 2" to 10" and are for potable water or drip tight applications.

Mueller Steam Specialty manufactures standard wafer silent check valves and globe-style silent check valves comprised of cast iron, bronze, carbon steel, or cast stainless steel. The valves are available in a number of ratings including class 125, 150, 250, 300, 600, and 1500. The company also produces screwed-end and cast iron/cast bronze, compact wafer types.

NIBCO manufactures cast iron, silent check valves for hot and cold water, HVAC, steam, gas, and other utility services. The company's line of silent check valves types include twin disc grooved style, flanged globe style, wafer style, twin disc wafer style, and flanged globe style.

The Metraflex Company produces globe-style silent check valves, wafer-style silent check valves, FM approved globe-style silent check valves, and FM approved wafer-style silent check valves. The globe-style check valves are available in sizes from 2-1/2" to 30" and 2-/12" to 12". The wafer-style valves come in sizes from 2" to 10" and are rated to 125lbs. and 250lbs. All the check valves activate at 1/4 and 1/2 psi.

Flomatic Corporation manufactures silent check valves and globe-style silent check valves. The silent check valves are built with a cast iron body and epoxy coating, and feature a flanged connection ANSI 125. The globe-style check valves are available in 2" to 24" sizes and used for regulating flow in a pipeline.