Tech Master GPD4000 series – Low to Medium Flows

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High pressure isolation valves
Two stage pressure regulation
Process line isolation valve
Encapsulated seat design
Twin cylinder configuration


  • brass barstock body
  • high strength alloy bonnet
  • Neoprene outlet diaphragm
  • First stage diaphragm 316L stst
  • Polyamide (Nylon) seat
  • 10 Micron 316L stst filter

Item #: 1237
Quantity Available: 100

100 in stock


4.5 Purity Two Stage Brass Bar-stock Diaphragm BS EN ISO 7291 Differential Auto-change Gas Control Panel

The Tech Master GPD4000 series two stage differential auto change control panels are designed for primary pressure gas control of non-corrosive or toxic, technical gases up to grade 4.5 purity (99.995%), on gas distribution systems where constant delivery pressure is required.

Future rated with 300 Bar inlet, separate line isolation valves, additional ports to add further connectivity and mounted on a stainless steel laser cut backing board gives the Tech Master GPD4000 series the winning edge to control your gases.


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Maximum Inlet     –        60 bar (870 PSI) / 300 bar (4350 PSI)*   Pressure

Delivery Pressure –       3.5 bar (50 PSI)/6 bar(90 PSI)/10 bar        Range                                        (150 PSI)

Gauge                  – 50mm (2”) Diameter

Ports                   –  ¼” NPT Female

Temperature Range   –    -20° C to +60° C (-4° F to +140° F)

Flow Coefficient (Cv)   –    0.078

Weight                           –               8.00kg (17.64 lbs)****



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