HCNG Series

Dual Tower Continuous Duty Purifiers

Pressure through 5000PSIG/345 BarG.  HCNG systems are ideal for large gas flow continuous duty service after the natural gas compressor. Systems are completely self-contained with pre-wired and pre-piped components. One tower purifies while the other regenerates.

 Quality Features

•  Particulate prefilters...one per tower
• Particulate afterfilters...one per tower
• Two desiccant towers (see page 4)
• Two tower pressure gauges
• NEMA 7 electrical control panel for automatic and continuous operation
• Two inlet valves
• Two outlet valves
• Two exhaust valves
• Two regeneration valves
• Pilot air filter
• Gas heater and controller with safety shut down

Options

1. Three valve block and by-pass system
2. Pioneer dewpoint analyzer plus with alarm, dedicated filter protection, inlet/outlet valving, and visual moisture indicator - NEMA 4, 7, or 12
3. Duplex prefilter with block and by-pass
4. Duplex afterfilter with block and by-pass
5. Stainless steel condensate accumulator and automatic drain system
6. Two pressure relief valves
7. Coalescing prefilter
8. Demand cycle control

 Operation

In high pressure purifiers, one tower dries while the other regenerates similar to the LCNG purifiers. The key difference is that in the HCNG purifiers, the moisture-laden purge gas is returned to the gas compressor inlet.

The Pioneer design includes filters at inlet and outlet of each tower for enhanced system reliability.

 Typical Flow Diagram HCNG Series

1. Exhaust valve
2. Tower Pressure Gauge
3. Inlet Valve
4. Exhaust Orifice
5. Repressurizing Orifice
6. Repressurizing Valve N/C
7. Purge Adjustment Regulator
8. Pressure Gauge
9. Purge Flow Orifice
10. Relief Valve
11. Heater
12. Check Valves

HCNG Series Specifications

Recommended Specifications 

The HCNG Purifier Model ______ shall include : 

• Dual pre & after filters...one per tower
• Two desiccant towers
• Two tower pressure gauges
• Two pressure relief valves
• NEMA 7 electrical control panel for automatic and continuous operation
• Two inlet valves
• Two outlet valves
• Two exhaust valves
• Two regeneration valves
• Pilot air filter
• Gas heater and controller with safety shut down

 Option Quote

• Three valve block and by-pass system
• Pioneer dewpoint analyzer plus with alarm, dedicated filter protection, inlet/outlet valving, and visual moisture indicator - NEMA 4, 7, or 12
• Duplex prefilter with block and by-pass
• Duplex afterfilter with block and by-pass
• Stainless steel condensate accumulator and automatic drain system
• Two pressure relief valves
• Coalescing prefilter
• Demand cycle control