Hammer Union-WECO® 2202, 2 inch, pressure transmitter

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The Stellar Technology WECO® 2202 hammer union pressure transmitter is designed specifically to meet the demanding high-pressure requirements of hydraulic fracturing in shale oil and shale gas formations.

This 2-inch Stellar Technology hammer union pressure transmitter has been field tested by well servicing companies to validate superior performance, reliability, endurance, and service life when compared with competitive units.

2-Inch WECO® 2202 Product Information

The Stellar Technology 2-inch WECO® 2202 hammer union pressure transducer is ideal for a wide variety of high pressure drilling and well servicing applications. The pressure transducer’s all-welded construction ensures there are no fastener failures.

The one-piece Inconel 2202 male sub and pressure sensing diaphragm will withstand the sour gas environments encountered in many well servicing applications. Since field failure is often due to the failure of the electrical receptacle, Stellar Technology’s WECO® 2202 Hammer Union pressure transducers incorporate an extra rugged bolt-on receptacle with proprietary shell. Customers can also specify hermetic welded electrical receptacles or their own preferred type of electrical connection.

Each 2-inch hammer union pressure transmitter is manufactured with special processes to enhance shock and vibration immunity—characteristics vital for today’s well servicing environments. Special design features for the WECO® 2202 hammer union are included to counteract the possible effects of EMI and RFI interference.

Additional design features for the WECO® 2202 include:

  • Four equally spaced drain-holes around the connector base to ensure moisture does not build up around the electrical receptacle.
  • A flexible vinyl-covered steel carrying handle, allowing the 2202 nut to be installed without removing the handle.

The Stellar Technology WECO® 2202 hammer union pressure transducer has a static accuracy of 0.2% of full scale output (BFSL) and comes in standard ranges of 10,000, 15,000 psi, and 20,000 psi.

All Stellar Technology 2202, 2-inch, hammer union pressure transmitters are ATEX and/or CSA certified intrinsically safe with 4-20 mA output. The part number reference indicates whether the hammer union pressure transmitter is ATEX certified, CSA certified, or dual certified.

(See 1502 hammer union data sheet for WECO® 1502 specifications. Also, refer to data sheets for GT23XX and GT25XX product for explosion proof configurations.) WECO® is a registered trademark of FMC Technologies.


WECO® 2202 Hammer Union – Standard Features

  • +/- 0.2% accuracy
  • Field tested and proven
  • 4-20 mA output
  • Intrinsically safe (ATEX, CSA)
  • Rugged all-welded construction complies with NACE standard MR0175/ISO15156 (2003)
  • Vibration and shock protection
  • RFI/EMI protection
  • Robust oilfield-specific electrical receptacles


2-inch WECO® 2202 Hammer Union Optional Features

  • Integral temperature sensor
  • Customer specific electrical receptacles (i.e., Jupiter, Amphenol, Glenair, Rota, etc.)
  • Digital output (non-IS)
  • Molded-over adapter cables