Hammer union is mainly used in oil industry in high-pressure pipline connectio. Size have 1" to 5", work the pressure 7Mpa to140Mpa(1000psi-20000psi), the API 6A and 16C  cetification, prevent H2S union according to the NACE MR 0175.

Design features:

1.with self-lockubf type ACME thread design;

2. repd tightening and remove;

3. made by international standard, and can be interchangeable with imported parts;

4. Seal with high pressure resistance;

5.Using NC mechine tool processing Seiko degree is high;

6. Type, specification identifies die forging on the wing nut, identification and convenient;