Hydra-Test Test Point Plugs
Test Point Plugs are installed in hydraulic systems at strategic points to provide easy access for the Hydra-Test Probes described later. Plugs may be installed temporarily during commissioning and fault finding, or left permanently installed to assist in routine servicing and maintenance.
A plug for every
conceivable location
Basic Test Point Plugs
Basic plugs are fitted into the system utilising existing threaded ports or ports specifically designed for the purpose. A wide choice of thread types and sizes is available to make fitting as simple as possible. Thread options include: BSPP and NPTF up to 3/8”, UNF up to 9/16-18, Metric up to M14 x 1.5 and 1/8” BSPT.
  • 400 bar working pressure.
  • Passivated steel or 316 stainless steel.

Soft Seat Test Point Plugs
Similar to the Basic Plug but for air, gas or liquid systems where bubble-tight sealing is essential.

  • Threads BSPP or NPTF.
  • 400 bar working pressure.
  • Positive ‘0’-ring sealing.
  • Passivated steel or 316 stainless steel.

Test Point Plugs For All Locations
A very wide range of adapted or specially designed plugs permit installation where a basic plug would not be feasible. The variety available means that Test Points can be placed at the most effective and/or convenient parts of the hydraulic system.

  • 400 bar working pressure.
  • Steel construction with corrosion resistant plating.

The following types are available:

  • Large sizes for access ports up to 1.1/2” BSPP or for attachment to 60° cone hose end fittings.
  • Staplelock for ports which conform to NCB638 requirements. These plugs are complimentary to the Staplelock Probes described later.
  • Bulkhead mounting with rear port internally threaded for 1/8” BSPF or NPTF pipe connection.
  • ‘T’ fittings for mounting into inch pipework from 1/4” to 1.1/2” dia and metric pipework from 6mm to 25mm dia.
  • Blanking cap adaptors for connection to DIN pipe fittings from l2mm to 38mm diameter and J.l.C. 37° cone fittings from 7/16” to 1.5/16” UNF.
  • Standpipe adaptors to fit into standard inch size compression type tube fittings from 1/4” to 1.1/2” 0.D. or metric sizes from 6mm to 42mm dia.
  • Hose coupling adaptors for fitting between the end of a flexible hose and the system hardware. For BSPP hose sizes from 1/4” to 1.1/2”, 0.R.F.S. hose sizes from 9/1 6” to 1.11/16” UNF and J.l.C. 37° cone hose sizes from 7/16” to 1.7/8”.