PSB - Model NG - SR - Single Vessel Manual Regeneration Fuel Gas Dryer
From NGV Fuel Station Gas Dryers
PSB type NG-SR is an ideal system for drying small to medium volumes of natural gas for stations with intermittent use. Each unit is conservatively sized to remove moisture from gas upstream of the natural gas compressor.When the initial charge of desiccant has-reached maximum drying capacity, it can be regenerated manually with the operator initiated, external regeneration package. A 'DDP' Digital Dew Point Meter is provided to indicate the effluent dew point, confirming performance, and need for regeneration. PSB's standard package includes factory fit pre filter for removing dirt/aerosols and after filter for removing desiccant dust.
Options
- CWP (Cold Weather Package) is available for regeneration in freezing conditions. Includes heat tracing and insulation on condensate sump / chain
lines and includes PLC control panel heater. - PSV Vent Stack Assembly. Includes relief valve exit piping and stack vent to 10 foot elevation. Ships separate due to height. Dryer vessel PSV is included as standard.
- 200 MWP is standard. High pressure dryer options are 300, 500,635, 875, 1100,1250, and 1250 MWP-PSIG.
Features
- Adsorber vessel designed, manufactured and stamped per ASME code Section VIII Alternatives available
- Piping designed per ASME B31.3
- NEMA / NEC electrical construction standard
- Closed-loop regeneration of the molecular sieve adsorbent
- Three valve block and bypass piping arrangement for isolation of the dryer
- Pre filter and after filter complete with differential pressure indicators
- Insulated adsorber vessel and electric heater for heat conservation
- Incoloy sheath low watt density flanged immersion type electric heater
- Stainless steel desiccant screens and
- diffiisers
- Desiccant chain and fill port on vessel
- Air cooled gas cooler with non-sparking fan and TEFC motor.
NG-SRDiver Instrument and Control Features:
- Electi'ical enclosures for operation in Class 1, Division 2, Group D areas
- Fully programmed PLC based dryer control system
- Panel mounted regen start, regen stop, and alarm reset pushbuttons. Status lights and remote ESD and alarm customer contacts
- Heater element and over-temperature shutdowns and blower/heater interlocks
- Local temperature and pressure gauges for monitoring process and regeneration.
- Requires only a 460/3/60 power input. Optional voltages available
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