Hammer Unions

Figure 211

Figure 211

Color Code:
Grey Nut, Blue 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:


- These Hammer Unions are used in production systems with electrolytic corrosive environments
- No metal to metal contact between the subs
- Laminated insulating rings provide 35 million Ohms resistance across the union. O-ring in male sub provides a positive primary seal
- Resilient seal ring in female sub provides secondary protection from corrosion
- Available in threaded ends

Size Nut Radius Length Total Pressure Rating (PSI) Weight (LBS)
Inches Inches Inches Standard
Sour Gas
Test Cold
2 3.03 3.45 2000 3000 N/A N/A 6.60
3 4.27 4.55 2000 3000 N/A N/A 14.08

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