RESTRICTION ORIFICE UNIONS

sales@imperialco.net   P.O. Box 352262  Los Angeles, California 90035 (USA)

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Imperial Flange and Fitting offers the following orifice unions: Orifice, Screwed (FNPT), Socket Weld, Copper Sweat, Butt Weld, Insert, Combination, Tube, Reducing, Elbow, Safety Wire Lock, Dielectric, Male (MNPT), and Bulkhead. All of the orifice unions are described in the table below:

Orifice Size range: 1/8" to 5" Fitting class: 3000, 6000 Seat: O-ring & flat face Type: All union types can be orifice	Screwed (FNPT) Size range: 1/8" to 5" Fitting class: 3000, 6000 Seat: O-ring & integral seat Also available: BSPT	Socket Weld Size range: 1/8" to 5" Fitting class: 3000, 6000, 9000 Seat: O-ring & integral seat Schedule: 10, 40, 80, 160, XXH	Copper Sweat Size range: 1/8" to 3" Fitting class: 3000 Seat: O-ring & integral seat Type: K, L, M
Butt Weld Size range: 1/8" to 5" Fitting class: 3000, 6000, 9000 Seat: O-ring & integral seat Schedule: 10, 40, 80, 160, XXH	Insert Size range: 1/8" to 5" Fitting class: 3000, 6000, 9000 Seat: O-ring & integral seat Schedule: 10, 40, 80, 160, XXH	Combination Size range: 1/8" to 5" Fitting class: 3000, 6000 Seat: O-ring & integral seat Type: All union types can be crossed	Tube Size range: 1/8" to 4" Fitting class: 3000, 6000 Seat: O-ring & integral seat Schedule: To match your tube
Reducing Size range: 1/8" to 5" Fitting class: 3000, 6000 Seat: O-ring & integral seat Size step: Can be stepped down 3 sizes Example: 1" to 1/2" Type: All union type can be reduced	Elbow Size range: 1/8" to 2" Fitting class: 150# Seat: O-ring & integral seat Type elbow: FNPT, SW, tube, copper sweat Type Tailpiece: All unions	Safety Wire Lock Size range: 1/8" to 5" Fitting class: 3000 Seat: O-ring & integral seat Type: FNPT, SW Also available: Twist pliers & extra safety wire	Dielectric Size range: 1/8" to 5" Fitting class: 3000, 6000 Seat: O-ring Note: Tailpiece has to be FNPT or MNPT
Male (MNPT) Size range: 1/8" to 5" Fitting class: 3000, 6000 Seat: O-ring & integral seat Schedule: 10, 40, 80, 160, XXH Also available: BSPT	Bulkhead Size range: 1/8" to 2" Fitting class: 150# Seat: Gasket (only viton or buna) Type: FNPT, SW, tube, copper sweat