Low pressure service. Manifold and general service. NPT Threaded Female ends. 2" available with 8RD threaded ends, consult factory.
Fig. 200 is a general purpose union, while the Fig. 206 has an O-ring in male sub for improved sealing. NPT threaded ends standard.
Recommended for air, water, oil or gas service to 2,000 PSI NSCWP. A Buna-N 'O' ring is mounted on the plain sub to provide an additional seal. Subs and nuts of the Fig. 206 union are interchangeable with the Fig. 200 union. Standard subs are threaded for API line pipe. Sizes of 2" and above also available with butt weld ends. connections.
Hammer Union. Laminated rings provide electrical isolation from galvanic corrosion, with a total of 35 million ohms resistance. An O-Ring in male sub and a seal ring in female sub provide primary and secondary seals. All seal rings are field-replaceable.
“Flat Face” design for straight breakout. Unlike Standard Unions, spreading of the line is not required, allowing quick breakout. The Unions seal equally well in low or high pressure liquid or vapor service.
Ideal Steam Service Union
Recommended for air, water, oil, or gas service to 4,000 PSI NSCWP. Utilizes precision ball and cone seating surfaces for easy alignment and dependable pressure seal. Sizes over 4" are rated to 2,500 PSI NSCWP. Also available with a lip-type seal in 2" size only as Fig 402.
Recommended for air, water, oil, gas or mud service to 6,000 PSI NSCWP. This union has a replaceable lip-type seal ring of Buna-N specifically designed to minimize fluid flow turbulence. Lip- type ring provides a pressure seal and protection for metal-to-metal seating surfaces. Smaller and lighter than Fig. 600 unions and are recommended for manifold and truck mounting where size and weight are critical.
Alloy steel forgings for high-pressure manifold and treating connections, such as cementing, fracturing, and acidizing. Employs a double seal that combines an elastomeric gasket with a metal-to-metal connection.
Recommended for air, water, oil, gas and mud service to 10,000 PSI NSCWP. This union has a replaceable lip-type seal ring of Buna-N specifically designed to minimize fluid flow turbulence. The lip-type ring works similarly as in the Fig. 602 union. These unions are for use on high pressure systems and trucks.
Recommended for standard service to 20,000 PSI NSCWP. Available in butt weld end connections only. Available as Fig 2202 for sour service (15,000 PSI WP).
