Hammer Union Pressure Transmitters

Model 509 Hammer Union Pressure Transmitter

Model 509 Hammer Union Pressure Transmitter

Our exclusive semi flush design provides a lower cavity volume to prevent clogging. This eliminates the need for tedious cleaning, especially in cementing applications.



Full Scale Pressure Ranges:
0-5K, 10K, 15K, 20K PSIG (0-345, 689, 1034, 1379 bar)
Combined Accuracy (BFSL):
(Non-Linearity, Hysteresis & Repeatability) ≤± 0.25% FSO
Full Scale Output (FSO):
16.00 mA ±1% FSO @70°F
  Zero Balance: 4 mA ±1% FSO @70°F
  Long-Term Stability: ≤±0.25% FSO per 6 months

Response Time:

≤2.5 mSec to reach 90% of FSO
  Compensated Temperature Range: -20°F to 185°F (-29°C to 85°C)
  Operating Temperature Range: -40°F to 200°F (-40°C to 93°C)
  Storage Temperature Range: -67°F to 302°F (-55°C to 150°C)
  Thermal Effect on Zero: ≤±1% FSO per 100°F (37°C)
Thermal Effect on Span: ≤±1% FSO per 100°F (37°C)



Output Signal:
4 - 20 mA at 70°F (21°C)
Supply Voltage:
9-30 Vdc (10.5 to 28 Vdc w/approval)
Power Supply Regulation Effect (Calibrated at 12 Vdc)
≤±0.01% FSO per Volt
  Load Impedance: 750 Ohms maximum at 24 Vdc
  Circuit Protection: Varistor protected across the input leads for surges above 1000V at 50 microseconds
  RFI / EMI:

<1% FSO output change with 3V Rms from 150 kHz to 80 MGz

(80% AM modulated at 1 kHz) applied to power supply and signal lines

[IEC 61000-4-6 radio frequency common mode immunity],

1% output change when exposed to a radiated electromagnetic

field of 10 V/m from 80 MHz to 1 GHz AM modulated at 1 kHz and 3 V/m

1.4 GHz to 2.7 GHz. [IEC 61000-4-3 Radiated electromagnetic field immunity]

Voltage Spike Protection: Withstand 1000 volt spike per EN 61000-4-5
Insulation Resistance: ≥100 MegOhms to case ground
Response Time: < 1 millisecond to reach 90% of FSO
Range Calibration Signal: 100% of FSPR
Calibration Power Supply Voltage: 9-30 Vdc at 15 mA nominal
Calibration Signal Accuracy: ≤±0.2% FSO. The exact signal to pressure correlation is provided with each unit
Bridge Resistance: 10K Ohms nominal
Standard Electrical Connection: Mates with Bendix P/N PT06E-10-6S or equivalent
PIN OUTS: PIN A +Power/Signal

PIN B -Power/Signal

PIN C No connection

PIN D No connection

PIN E +Calibration

PIN F -Calibration

Some models are provided with customer specified wiring. Consult Viatran for exact wiring connections.



Standard Pressure Port:
Male hammer union 2 inch #1502
Pressure Cavity Volume:
0.4 cubic inches
  Proof Pressure: 1.67 times the FS or 22.5K PSI (1550 bar) for union #1502
30K PSI (2068 bar) for union #2002 whichever is less
  Burst Pressure:

≥3 times FSPR, limited by union #1502: 22.5K PSI (1550 bar)




Wetted Materials:

Inconel X-750, heat treated per MR0175-2000

Enclosure Material:

304 stainless steel
Laser etched onto body
  Shock Limitation: 100 G’s
  Enclosure Rating: NEMA 4X
  Weight: 5.5 lbs nominal (2.4 kg)
  * Pending approvals




Special range


Special calibration run


CE label


CSA Intrinsic Safety label



FM Intrinsic Safety label


Low cavity volume sensor design


Russia Intrinsic Safety


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