We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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.

How it compares

Measured against everything we stock in Compressors, Inflators & Vacuum Pumps, at today’s prices. Recalculated every night.

Price $400.99
Pricier than about 91% of the 1,520 comparable items (median $36.99).

Specifications

Product
Brand nameSPEEDAIRE

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.

More in Compressors, Inflators & Vacuum Pumps

Similar items