Check Valves – Streamline offers four styles of check valves.
Inline Check Valves
Our Inline check valves are machined from drawn brass rod and offer an enhanced internal design for maximum flow and minimum pressure drop. A soft neoprene seat provides positive isolation and pulsation dampening. A stainless steel spring allows the valve to operate (close) in any position.
Four-Bolt Check Valves
Four-bolt check valves feature forged brass bodies that exceed the most stringent quality standards in the industry. The four-bolt flanges allow easy removal and reassembly of internal components. Suitable for either horizontal or vertical installation, the "Y" type design provides increased flow capacity and minimal pressure drop. The non-asbestos gasket material and O-ring seal ensure absolute seal integrity while heat-stabilized Teflon seats provide a positive seal across wide temperature ranges. Our four-bolt check valves also feature backpressure shutoff at low pressure differentials and special springs for various differential applications.
Screw Bonnet Check Valves
Our screw bonnet check valves feature forged brass bodies that exceed the most stringent quality standards in the industry. The flexible design allows easy removal and reassembly of internal components. Designed to provide minimal pressure drop and increased flow capacity, Screw bonnet check valves are available with copper tube extensions and special spring alternatives.
Magnetic check valves
Magnetic check valves offer the latest technology with DuraForm processing to eliminate the use of braze materials that can overheat and damage internal components. Hermetically formed copper body ensures zero leak potential while mechanically formed solder cup stops provide easy installation. Design offers flexible installation positioning and offers a built-in 30 mesh stainless steel screen.
Compatible with all CFC, HCFC and HFC refrigerants and oils
Operating temperature ranges from -40° F to 300° F
Max. work pressure of 700 psig.
Recognized for use in the USA and Canada
UL /cUL recognized and CE certified