Hammer Unions (Weco Type)
PME Hammer Unions are manufactured from high-strength alloy steel forgings with advanced heat treatment to ensure even metallographic structure and superior pressure-bearing capacity. Fully compliant with ASTM, AISI, and API 16C standards.
- CWP Range: 1,000 PSI to 22,000 PSI
- Main Models: FIG 100, 200, 206, 602, 1002, 1502, 2202
- Connections: Threaded, Butt Weld, Non-pressure Seal
Technical Superiority & Design Features
Reliable Sealing
Our lug unions feature precision-machined primary and secondary seals to ensure zero-leakage performance during high-pressure oilfield operations.
Color Identification
For easy site identification, different pressure grades have distinct color markings with obvious models and pressure ratings on the wing nut.
H2S/Sour Gas Service
Specialized welding unions (FIG 602, 1002, 1502, 2202) are available for H2S service, meeting NACE MR0175 safety requirements.
Pressure Ratings & Figure Models
| Figure Model | Cold Working Pressure (CWP) | Type / Application | End Connection |
|---|---|---|---|
| FIG 100 | 1,000 PSI (7 MPa) | Standard Service | Threaded |
| FIG 200 / 206 | 2,000 PSI (14 MPa) | Standard Service / O-Ring | Threaded / BW |
| FIG 602 | 6,000 PSI (42 MPa) | Resilient Seal Ring | Threaded / BW |
| FIG 1002 | 10,000 PSI (70 MPa) | High Pressure Service | Threaded / BW |
| FIG 1502 | 15,000 PSI (105 MPa) | Heavy Duty / Fracturing | Threaded / BW |
| FIG 2202 | 15,000 – 22,000 PSI | Sour Gas (H2S) Service | Butt Weld |
Interchangeability & End Connections
Universal Compatibility: All PME Hammer Unions are fully interchangeable with major industry brands, ensuring seamless integration into existing flowlines.
Versatile Connection: Available in Pipeline Thread, Tubing Thread, and Butt Weld configurations to suit various piping requirements.
Forged Strength: Made from forged alloy steel to withstand extreme vibration and pressure surges in well control systems.
Request for Quote: When ordering, please specify the Figure Number (e.g., FIG 1502), size, end connection (Threaded or Butt Weld), and service type (Standard or H2S). PME Industrial provides full technical drawings and test reports upon request.