GSS
Gas supply system

GSS <br/>Gas supply system

GSS
Gas supply system

Features

Gas supply systems of the GSS range are specially designed for contact-free operated, gas-lubricated mechanical seals. The gas supplied from the supply network (e.g. air or nitrogen) is regulated/monitored by the GSS in accordance with the requirements of the seals being supplied. The GSS systems are equipped with alarm and/or switch-off points depending on specific safety requirements. Centralized monitoring of the measurement values is also possible on request.

Circulation in accordance with API 682 / ISO 21 049: Plan 72, Plan 74

Advantages

  • Available with a wide range of different instruments
  • Safe operation thanks to incorporated pressure regulator with integrated filter
  • System mounted on a plate or in housing
  • Three variants of the housing version available: painted steel, stainless steel, glass fabric
  • Easy wall or rack mounting
  • For operating pressures of up to 16 bar (232 PSI)

Functional description

Buffered, gas-lubricated mechanical seals may only be used in conjunction with adequately pressurized gas (e.g. from a closed circular nitrogen pipeline provided by the operator). For Plan 74 systems the barrier gas pressure level p3 must always be higher than the pressure level p1 of the sealed product, whatever the operational state of the machine. The minimum pressure overlay level (Δp) is specified for the individual seal types.

Main GSS functions:
  • Filtering of the buffer and flushing gas
  • Pressure monitoring and regulation
  • Flow monitoring


Typical tasks for the GSS:
  • Buffer/barrier gas supply for double seals
  • Gas flushing for single seals
  • Gas supply for tandem seals

Notes

To assure a sufficient supply of the mechanical seal, pressure at entry of the supply system must be min. 2 bar (29 PSI) above max. barrier pressure always.



Product variants

GSS4016/A1... range
(system mounted on a plate)
Description GSS4016/
A100
GSS4016/
A110
GSS4016/
A101
GSS4016/
A111
GSS4016/
A102
GSS4016/
A112
GSS4016/
A103
GSS4016/
A113
Pressure gauge PI PI PIA L PIA L PI PI PIA L PIA L
Flow for small
measuring range
FI FI FI FI
Flow for large
measuring range
FI FI FI FI FIA H FIA H FIA H FIA H

GSS4016/A2... range
(system in housing)
Description GSS4016/
A200
GSS4016/
A210
GSS4016/
A201
GSS4016/
A211
GSS4016/
A202
GSS4016/
A212
GSS4016/
A203
GSS4016/
A213
Pressure gauge PI PI PIA L PIA L PI PI PIA L PIA L
Flow for small
measuring range
FI FI FI FI
Flow for large
measuring range
FI FI FI FI FIA H FIA H FIA H FIA H

GSS4016/A3... range
(system in stainless steel, in housing)
Description GSS4016/
A300
GSS4016/
A310
GSS4016/
A301
GSS4016/
A311
GSS4016/
A302
GSS4016/
A312
GSS4016/
A303
GSS4016/
A313
Pressure gauge PI PI PIA L PIA L PI PI PIA L PIA L
Flow for small
measuring range
FI FI FI FI
Flow for large
measuring range
FI FI FI FI FIA H FIA H FIA H FIA H

GSS4016/A... range
(system in housing)
Description GSS4016/
A250-D1
GSS4016/
A350-D1
Preferred system
for agitator seal type
AGSZ AGSZ
Pressure gauge PIA L PIA L
Flow for small
measuring range
FIA L FIA L
Flow for large
measuring range
FIA H FIA H
Pressure to be sealed 0.5 ... 11 bar
(7.5 ... 160 PSI)
0.5 ... 11 bar
(7.5 ... 160 PSI)
Barrier pressure mechanical seal 2.5 ... 13 bar
(36.5 ... 189 PSI)
2.5 ... 13 bar
(36.5 ... 189 PSI)
Design pressure 13 bar (189 PSI),
max. 16 bar (232 PSI)
at 20 °C (68 °F)
13 bar (189 PSI),
max. 16 bar (232 PSI)
at 20 °C (68 °F)
Material housing Steel, lacquered Stainless steel

GSS6000/A4... range
(System acc. to API682 4. edition, mounted on a plate)
Designation GSS6000
A4M001-D0
GSS6000
A4M001-D0
API-Plan 72 74
Design code ASME VIII, Div. 1 ASME VIII, Div. 1
Allowable pressure 40 bar (580 PSI) 40 bar (580 PSI)
Allowable temperature -20 °C ... +50 °C
(-4 °F ... +122 °F)
-20 °C ... +50 °C
(-4 °F ... +122 °F)
Process connections Flange 1/2", 600 lbs Flange 1/2", 600 lbs
Metal parts 316/316L 316/316L

Other versions on request.

PI: Pressure gauge
PIA L: Pressure gauge with MIN contact
FI: Flow meter
FIA L: Flow meter with MIN contact
FIA H: Flow meter with MAX contact


GSS4016
mounted on a plate