Technical Specifications

• Pressure Ratings:
• American Standards: ASME B16.11 (2000#, 3000#, 6000#).
• European Standards: EN 1092-1 for flanged unions.
• DIN Standards: DIN 2950 for threaded unions.
• Temperature Ranges: Designed for -50°C to 650°C, depending on seal type.
• Seal Options: Metal-to-metal, elastomeric, or PTFE seals for leak-proof operation.
• Finish: Shot-blasted, polished, or galvanized for corrosion resistance.

Sizes

• NPS sizes: ½ inch to 4 inches (DN15 to DN100).
• Custom sizes are manufactured based on specific project needs.

Materials and Grades

• Carbon Steel:
• ASTM A105, EN 10216-2 P235GH, DIN St37.2.
• Stainless Steel:
• ASTM A182 Grades F304, F316, F321, F347, EN 1.4401, EN 1.4307, DIN X2CrNiMo17-12-2.
• Alloy Steel:
• ASTM A182 F11, F22, EN 1.7335, DIN 13CrMo4-5.
• Dielectric Materials:
• Used in unions to prevent galvanic corrosion.

Types of Unions

1.     Threaded Union: For easy screw-type connections.

2.     Socket Weld Union: Offers a leak-proof welded joint.

3.     Flanged Union: Uses gaskets for secure removable connections.

4.     Ground Joint Union: Provides a strong metal-to-metal seal.

5.     Hammer Union: Quick assembly for oilfield applications.

6.     Dielectric Union: Prevents galvanic corrosion in dissimilar metals.

7.     Pressure-Seal Union: Used for high-pressure steam systems.