HP251 Frontline

HP251 Frontline

Cylinder station

2x1 cylinder (bundle) dual stage with automatic changeover

The HP 251 is a dual stage panel for central gas supply with automatic changeover and internal purging.

It serves the safe supply of pure and mixed gases from 2 single or 2 bundled cylinders. The changeover takes place as soon as the pressure in the first side sinks below a predetermined level. This is controlled by two installed regulators with connected outlets.

The station is mounted on a stainless steel console consisting of a pressure regulator with in and outlet pressure gauges as well as a relief valve and shut-off valve for the process gas and purge gas.

Special characteristics:
Modular design of the pressure regulator and multifunction block. Assembly and disassembly of all fixtures from the front.

Diaphragm shut-off valve in block design for process and purge gas with open and close display. Expandability for 1x2 or 2x2 cylinder/ bundle is already integrated. Options for external gas purging can be retrofitted without any problem.

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  • Technical Details
  • Application Area
  • Order Details
Body: stainless steel 1.4404 electropolished or brass nickel and matt chrome plated
Diaphragm: 1.4435
Leakage Rate: 10-8 mbar l/s He against atmosphere
Gas purity: < 6.0
Max. inlet pressure: 300 bar
Outlet pressure ranges: 0.1-1, 0.1-3, 1-6bar
Cv: 0.06
Operating temp.: -20°C to +70°C
Gauges: safety version to: EN 837-1 KL1.6
Dimensions (wxhxd): 480 x 205 x 140 mm
Weight: 7.7 kg
Connections: NPT 1/4“ f

Especially for gases with high requirements on purity to 6.0. secure and leak-proof were an uninterrupted supply over night and at weekends must be guaranteed.

Through options such as contact gauges and gas alarm boxes is the supply concept optimised.

Through our special cleaning system our pressure regulators are suitable for ECD – applications.

To identify the correct order code for your HP251 Frontline

Start with "HP251-", then add the appropriate number options from columns A, B, C & D  in the table below followed by the gas to be used.

HP251-2-1-2-1-Argon specifies a HP251 model in brass with 200 bar inlet pressure, 0.1-3 bar outlet pressure & standard gauges, for use with Argon gas.

Material Inlet pressure (p1) Outlet pressure (p2) Gauges
1 = stainless steel 1 = 200 bar 1 = 0.1 - 1 bar 1 = standard gauge
2 = brass 2 = 300 bar 2 = 0.1 - 3 bar 2 = contact gauge ex
    3 = 1 - 6 bar