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Metal desiccant dryer, four-stage, compact rectangular shape, NPT fittings visible

Value Brand

Value Brand SPEEDAIRE 4UDK5 Desiccant Dryer 4 Stage 15 CFM

SKU CH-YEKJ-5QNQD

A four-stage desiccant dryer delivering 15 CFM at 125 psi with a -40 °F dew point for clean, dry compressed air

  • Delivers ISO Class 2 air purity for sensitive applications
  • Four-stage filtration removes particles down to 0.01 micron
  • Handles 15 cfm flow at 125 psi maximum pressure
  • Achieves -40 °F dew point for moisture-critical processes
  • Compact metal body measures 11 in long by 14 in wide

Desiccant Dryer for Compressed Air Systems

The SPEEDAIRE 4UDK5 is a four-stage desiccant dryer rated at 15 CFM with a -40 °F dew point. It delivers ISO Class 2 air quality for applications such as paint spray, lab air and air gauging equipment. The unit accepts 1/2 inch NPT inlet and outlet connections. Metal bowls hold 6 oz and 32 oz capacities.

Four-Stage Filtration and Metal Construction

Staged filtration at 0.01 micron, 5 micron, 40 micron and 70 micron removes particulates and moisture before air reaches downstream tools. All bowls are metal for durability under a maximum operating pressure of 125 psi. The overall footprint measures 11 1/4 in length by 14 1/4 in width. Filters are included with the dryer.

Practical Limits of Desiccant Technology

Desiccant media must be regenerated or replaced once saturated, so continuous high-demand use requires planned downtime. The 15 CFM maximum flow rate restricts the dryer to smaller compressors or point-of-use installations. Pressure drop across four filter stages can affect tools sensitive to inlet pressure. Buyers needing higher continuous flow or lower maintenance intervals should consider alternative drying methods.

Highlights

  • Delivers ISO Class 2 air purity for sensitive applications
  • Four-stage filtration removes particles down to 0.01 micron
  • Handles 15 cfm flow at 125 psi maximum pressure
  • Achieves -40 °F dew point for moisture-critical processes
  • Compact metal body measures 11 in long by 14 in wide

Specifications

BrandSPEEDAIRE

Questions about this item

What does the 1/2 in NPT inlet and outlet limit the dryer to in practice?

The 1/2 in NPT connections support the rated 15 cfm flow at up to 125 psi; larger piping would be needed for higher volumes.

What clearance is needed to mount the unit given its overall length and width?

The dryer measures 11 1/4 in long by 14 1/4 in wide, so allow at least that footprint plus access room for the filter bowls.

How is the dryer installed, and which step is commonly missed?

Connect the 1/2 in NPT inlet and outlet, then fill the 6 oz and 32 oz metal bowls with desiccant before pressurising — skipping the fill is the frequent error.

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