Sigma Flow Controls

The Sigma Flow Control's unique design provides three separate functions at a cost well below that of any single function device now on the market.

It is an accurate metering valve and a return check valve built into a 360° swivel elbow connector.

Tough plastic body material completely eliminates corrosion. The tapered fine thread needle gives a wide range of adjustment of flow in the controlled direction. A solid center stud provides an excellent bearing surface for full 360° rotation.