The valve is an inexpensive, easily replaced example of the dozens of parts that can elicit a check engine light and associated vexing investigation. It can also be the source of oil leaks.

Engineered for strength and durability, the standard AWWA C508 Swing Check Valve offering features an ASTM A536 ductile iron ...

An example of the latter is offered by Crane, which suggests using the loss coefficient model: The conversion to flow coefficient C is given by the derived equation Where d = inside pipe diameter (or ...