Replacement Components and Accessories

Hellan manual strainers can be converted to automatic operation by installing a conversion kit.

Call 1-888-4-Hellan to order a manual to automatic conversion kit.


DP Gauge & Switch, Diaphragm Type

Hellan DP GaugeHellan ZH344G & ZH344H Aluminum Bronze Diaphragm Type DP Gauges provide outstanding capabilities not previously available in a modestly priced differential pressure gauge and switch.  The Aluminum Bronze body along with Monel internals provides excellent corrosion resistance in sea water applications.

Common Applications: Filter/Strainer Monitoring, Compressed Air, Hydraulic, Refrigerant, Pump Performance Testing, Heat Exchanger Pressure Drop Monitoring, Water Treatment Applications, Tank Level Monitoring Horizontal or Vertical, Flow Monitoring and Balancing.


  • Shock Tested per MIL-S-901D Grade A
  • Vibration Tested per MIL-STD-167-1 (4-50 Hz)
  • Aluminum Bronze Body
  • Monel Internal Metal Parts
  • Teflon Guide Bushings
  • Sensor magnetically coupled to the indicating pointer and optional switch
  • Weather resistant construction standard
  • Shatter resistant acrylic lens
  • 2 1/2″ Uni-Directional Dial, white with black letters
  • Total separation of high and low pressures by a Convoluted Elastomer Diaphragm
  • Over range protection to full rated working pressure


pdficonsmall Download our latest Pressure Gauge Catalog

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Quick Disconnect Coupling, with Switch

Quick Disconnect CouplingHellan Fueling Hose 2 1/2″ Quick Disconnect Coupling with Switch allows for a safe, quick method for attachment to hoses.

Manufactured from Brass, the coupling is built to Grade A Shock MIL-C-19179.


  • Shock Tested per MIL-C-19179 Grade A
  • Integral Cut-Off Switch
  • Brass Construction