Restriction Orifice Unions
An alternative design to control flow, with a wide range of options.
Restriction orifice unions feature a single piece metal orifice plate that fits perfectly into the union seat, eliminating the need for a gasket. Orifice unions are commonly used in fire pump systems, since they have the ability to handle higher levels of pressure while maintaning a smaller overall pipe size.
- Available with pressure ratings of 3000 and 6000 psig.
- Threaded and socket-weld connections available
- Unions are available in A105 carbon steel or 316 stainless steel, along with other materials
- Available in pipe sizes ranging from 1/8” – 2”
Material Options: A105 carbon steel or 316 stainless steel
Industries: Any industry that requires flow measurement, including coolants, gases, steam and water.