APG Hammer Union Pressure Transmitter HU-1502

APG Hammer Union Pressure Transmitter HU-1502

The Hammer Union Pressure Transmitter is an designed for the rugged environments of land based and offshore drilling installations including Mud Logging and Measurement while drilling. As tough as the roughnecks who use it. Everything on an oil & gas drilling rig needs to be tough. Our 1502 hammer union pressure transducer is built for extreme pressure, high vibration, and rough handling.

Certified & Ready

The 1502 HU is certified for global use in hazardous locations through CSA (Class 1, Div 1/Zone 0), ATEX (CE 0344 EX II1G Ex ia IIB T4 Ga), and IECEx (EX ia IIB T4 Ga). It's also NACE MR-01-75 and ISO 15156-3 compliant for sour gasses.

Easy Field Calibration

With the Shunt Cal feature, you can calibrate the transmitter to the right pressure range without having to pressure it up.

Handles Vibration

The welded body and durable electronics handle extreme vibration common in MWD and other high pressure processes.

Smart Design

When we first started the design for the HU, we made sure to pay attention to the details - like a wider top for easy access to the connector, and drain holes to keep it from filling with water.


  • Ranges to 15,000 psi
  • 4-20 mA or 0-5 VDC output
  • WECO® 1502 fitting for 2” line
  • Exceptional shock and vibration resistance
  • ±0.25% accuracy of full scale
  • CSA/ATEX/IECEx Approved


  • Oil and Gas Drilling
  • Measurement While Drilling
  • Cementing
  • Mud Pumps / Mud Logging
  • Fracturing
  • Acidizing
  • Standpipe
  • Stimulation



Pressure RangeUp to 20,000 psi
AccuracyB.F.S.L. ≤ 0.25% of full scale
 NIST up to ± 0.1% available in select ranges
Temperature Compensation RangeUp to -40 to 150° F (-40 to 65° C)
Temperature Effects on Zero & Span± 0.026% FSO/°C (± 0.01% FSO/°F)
Life Expectancy10 million cycles minimum
Frequency ResponseLess than 5mS


Supply Voltage10-30 VDC on sensor
Loop Resistance1124 ohms @ 30 VDC decreasing linearity to 0 ohms @ 10 VDC
Insulation Resistance>100 megohms @ 500 VAC, 70°C


 0-5 VDC
Internet Connectivitywith RST-5003 (4-20mA version only)
Output Signal @ 21° C4-20 mA: 3-30 mA max
 0-5 VDC: 110 mA inrush current
 0-5 VDC: 3.5 mA operating current


Wetted MaterialNACE MR-01-75 and ISO 15156-3 compliant Nickel Alloy
Enclosure316L SS
SizeFig. 1502


Storage Temperature-50 to 248° F (-50 to 120° C)
Operating Temperature-40 to 185° F (-40 to 85° C)
Enclosure ProtectionIP67

Download Data Sheet: Hammer Union Pressure Transmitter HU-1502

Ref: apgsensors.com