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Continuing the tradition of inovation.
Exclusive Manufacturer of Parmatic ® filtration products.


Products: Differential Pressure Indicator / Switch

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Product Overview

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: In excess of 5000 psi
Burst Pressure 20,000 psi minimum
Differential Pressure Range: 1 to 200 psi
Accuracy: ± 10% at any differential pressure setting
Temperature Range: -65 F to 275 F - standard
Surge Suppression: Response time delay up to 2 seconds
Thermal Lockout: Available on all units
Weight: 0.8 ounces
Vibration, Shock Impulse: Exceeds applicable requirements of Specifications: MIL-F-8815, MIL-E-5272,
MIL-S-901, MIL-STO-167
Materials: Aluminium or stainless steel
Body: Inert material

Typical Aplications

  • Marine
  • Hydraulic
  • Pneumatic
  • Fuel
  • Cryogenic


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