Hammer Unions

Figure 1003

Figure 1003

Color Code:
Black Nut, Green Sub

- Three lug nuts and self-locking ACME threads provide quick make-up and break-out
- Color coded for quick identification
- Unique identification for sour gas unions
- Meet or exceed National Association of Corrosion Engineers standard NACE MR-01-75 and API RP-14E
- Manufactured from quality steel meeting ASTM and/or AISI standards
- All unions provide pressure-tight & positive sealing for low-pressure services (500 to 2,000 PSI)|
- The spherical surface male sub and angular surface female sub form a metal-to-metal seal, the ball and tangent provides a perfect seal
- Range from 1/2” to 12” with cold working pressures from 500 to 20,000 PSI

Compatible with other brands

Seal Options:
NBR/Nitrile (standard service), Viton® (sour gas service)

At a glance:


- Figure 1003 unions are used in air, water, oil, mud, gas service, high pressure manifold, drilling rig where alignment of piping components is a problem
- Replaceable o-ring on mae sub provides primary sealing
- Available in both threaded and butt weld ends
- 5" unions are available in butt weld ends only*

Size Nut Radius Length Total Pressure Rating (PSI) Weight (LBS)
Inches Inches Inches Standard
Sour Gas
Test Cold
3 4.80 8.87 10000 15000 7500 11250 47.50
4 6.00 10.90 7500 11250 5000 7500 78.15
5* 6.00 10.90 7500 11250 5000 7500 79.62

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