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.

Colton Industries manufactures seven types of silent check valves: cast iron wafer body, cast iron flanged body, cast carbon steel wafer body, cast carbon steel flanged body, cast stainless steel threaded/socket weld body, cast stainless steel wafer body, and cast stainless steel flanged body. The various silent check valves are available in sizes from 2" to 24", 2" to 16", 2" to 12", and 1/4" to 4".

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.

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.

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.

Watts Water Technologies Inc. manufactures cast iron silent check valves in 2" to 10" sizes, and cast iron silent check valves with flanged ends. The flanged end check valves are available in sizes from 2" to 6". Both silent check valves types feature maximum pressure of 200 psi, and are used in commercial and industrial HVAC applications.

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.

Specialty Valves & Controls distributes DFT-brand silent threaded check valves, silent wafer check valves, and silent flanged check valves that are used in liquid, gas, or stem applications.

Sureflow Eqiupment Inc. designs and manufactures cast iron, silent check valves; stainless steel, wafer silent check valves; and cast iron, globe silent check valves. The three check valve types are available in 2" through 12" sizes, and 2" through 24" sizes. Used for municipal water systems, industrial class HVAC, industrial piping systems, and irrigation systems, the check valves feature vertical or horizontal installation and pressures of 150 psi, 200 psi, 275 psi, or 285 psi.