Heated & Heatless Dryers

Description

FSG Heatless Dryers are used for critical applications where compressed air dew points must be maintained below -40°F.

FSG Heatless Dryers provide efficient and reliable operation with minimal maintenance.

Principle of Operation

The FSG heatless regenerative dryer consists of dual towers, each filled with desiccant.

One tower is on-line, drying the compressed air stream, while the off-line tower is being regenerated.  In the tower being regenerated, water vapor collected during the previous drying cycle is desorbed into the purge air stream and vented to atmosphere.

The dryer operation, controlled by a solid-state timer, is continuous and automatic.  The standard drying/regenerating NEMA cycle for -40°F operation is 10 minutes (5 minutes drying, and 5 minutes regenerating per tower).

Standard Features

  • NEMA 4 controls
  • ASME/CRN coded vessels
  • Flow Guard 4-way switching valve
  • Blue Moisture Indicator
  • Removable stainless steel air flow diffuser screens and desiccant support
  • Grade A activated alumina desiccant
  • Tower pressure gauges and safety relief valves
  • Purge exhaust muffler
  • Purge flow indicator and adjusting valve

Optional Features

  • Custom controls including programmable logic controllers
  • Energy saving dew point demand systems, selectable outlet dew point from -100°F to +40°F
  • High dew point alarm
  • Fail to shift alarm
  • Flow Guard dual Viton o-ring and non-lubricated 4-way switching valve
  • Mounted and pre-piped filter packages
  • Pneumatically controlled operation (NEMA 7)
  • Custom engineered systems built to owner specifications


Specifications

Model Height
(in.)
Width
(in.)
Depth
(in.)
Weight
(lbs)
Conn. Size


For dimensions of larger heatless dryers, consult FSG. Dimensions are subject to change without notice.
H-35 63 32 24 275 3/4" NPT
H-50 63 32 24 300 3/4" NPT
H-75 58 38 24 400 1" NPT
H-100 71 38 24 450 1" NPT
H-150 58 43 27 625 1 1/2" NPT
H-200 69 43 27 675 1 1/2" NPT
H-250 76 43 27 900 1 1/2" NPT
H-300 78 49 27 1,050 2" NPT
H-350 86 49 27 1,150 2" NPT
H-400 81 49 27 1,300 2" NPT
H-500 81 49 27 1,400 2" NPT
H-600 91 49 27 1,600 2" NPT
H-750 94 70 30 2,000 2 1/2" NPT
H-900 95 74 39 2,500 3" FLG
H-1100 101 74 39 2,800 3" FLG
H-1300 112 74 39 3,300 3" FLG
H-1500 101 90 42 4,000 3" FLG
H-1800 106 90 42 4,600 3" FLG
H-2100 116 90 42 5,300 3" FLG


What sets FSG apart

flow guard 4 way valve Flow Guard 4-Way Valve

Quality valve provides simplified design, minimal maintenance, and high flow coefficients.

Available in both lubricated and non-lubricated designs.

Time tested with over 40 years of industrial service and millions of cycles completed.

digital display Digital Display Dew Point Demand System

Provides maximum energy efficiency and matches purge rate to moisture loading.

Ceramic sensor reads dew point between –148°F to +68°F while being resistant to liquid water damage.

custom control packages Custom Control Packages

Systems built to meet owner specification.

Control features include: on-screen diagnostics, operator interface terminals, customer communication capabilities, and performance monitoring.

complete filtration packages Complete Filtration Packages

Custom filtration packages provide “turnkey” installation, meeting stringent air purity requirements.  Mounted and pre-piped packages reduce system installation costs.


Other FSG Air Purification Products:
  • Heated Purge Dryers
  • Blower Purge Dryers
  • Heat of Compression
  • Closed Loop Systems
  • Vacuum Assisted Dryers
  • Breathing Air Systems