Admiral Filter contact info
High Performance

Admiral's differential pressure indicators are a miniature, rugged reliable and accurate means for positively indicating if a gage or differential pressure exceeds a specified value when a red indicator/button appears.

Admiral's differential pressure indicators are installed in thousands of filter applications aboard ships and aircraft worldwide.



  • One model meets all normal requirements
  • Resistant to pressure surges
  • Very small size and lightweight
  • Modular design prevents possible loss of parts during installation
  • No moving seals
  • Shock and vibration resistant
  • Solid metal barrier isolates system pressure


  • "Built-in" variable delay surge suppressor
  • Indicator button cannot be reset until the cause of the over pressure has been corrected
  • Thermal lockout to prevent operation below a preset temperature.
  • Same size indicator even with differential pressure increases
  • Use of only one magnet to limit size and weight
  • Modular design without loose parts might require assembly


Operating Pressure:

Burst Pressure:

Differential Pressure Range:


Temperature Range:

Surge Suppression:

Thermal Lockout:


Vibration, Shock Impulse:



In excess of 5000 psi

20,000 psi minimum

1 to 200 psi

± 10% at any differential pressure setting

-65 F to 275 F - standard

Response time delay up to 2 seconds

Available on all units

0.8 ounces

Exceeds applicable requirements of Specifications: MIL-F-8815, MIL-E-5272, MIL-S-901, MIL-STO-167

Aluminium or stainless steel

Inert material

Performance range and accuracy can be extended for special requirements.

Typical Aplications

  • Marine
  • Hydraulic
  • Pneumatic
  • Fuel
  • Cryogenic


  • Variable mountings
  • Choice of materials
  • Remote indication
  • Thermal indication
  • Security lock