Refrigerated compressed air dryer DK series

in-line

Overview
MAC3 markets the DK range of refrigeration dryers with integrated filters. These refrigeration dryers provide a compact footprint, low pressure drop and a real 3°C pressure dew point, suitable for industrial compressed air systems and tropical conditions.

Features

• Compact design
  Chassis engineered to eliminate free space and minimize floor area.
• Energy saving device
  Electronic controller with energy-saving functions and fault management.
• Aluminum exchanger
  Very low pressure drop (~100 mbar) and high thermal efficiency delivering a real dew point of 3°C.
• Accessibility
  Easy access to each component to simplify inspection and maintenance.
• Scroll compressors (from DK 140)
  Economical, durable scroll compressors used on larger models.
• Integrated in-line filters (up to DK 170)
  One X-element coalescing filter for water removal down to 1 µm and one Y-element coalescing filter for oil removal down to 0.01 ppm.

Highlights

• 3°C pressure dew point
• Very low pressure drop
• Designed for tropical conditions
• Operates with up to 60°C inlet temperature and 50°C ambient temperature thanks to R-134a refrigerant and an oversized condenser
• DIGIPRO controller (DK10–DK130) or ESD controller (DK140–DK260)

Performance

• Refrigerant: R-134a
• Maximum working pressure: 16 bar
• Maximum ambient temperature: 50°C
• Maximum inlet temperature: 60°C

Models — Key Data (table)
MODEL | VOLTAGE | AIR FLOW (m3/min) | CONNECTION | INTEGRATED FILTERS | DIMENSIONS (mm L x W x H)
DK 10 | 230/1/50 | 0.35 | 1/2" | GO 55 MX + MY | 452 x 444 x 567
DK 20 | 230/1/50 | 0.58 | 1/2" | GO 55 MX + MY | 452 x 444 x 567
DK 30 | 230/1/50 | 0.83 | 1/2" | GO 55 MX + MY | 452 x 444 x 567
DK 40 | 230/1/50 | 1.45 | 3/4" | GO 155 MX + MY | 473 x 453 x 832
DK 50 | 230/1/50 | 2.17 | 3/4" | GO 155 MX + MY | 473 x 453 x 832
DK 60 | 230/1/50 | 2.83 | 3/4" | GO 155 MX + MY | 473 x 453 x 832
DK 70 | 230/1/50 | 3.30 | 1 1/2" | GO 405 MX + MY | 553 x 503 x 874
DK 80 | 230/1/50 | 4.72 | 1 1/2" | GO 405 MX + MY | 553 x 503 x 874
DK 90 | 230/1/50 | 5.90 | 1 1/2" | GO 405 MX + MY | 553 x 503 x 874

Technical specifications

• Pressure dew point: 3°C (real dew point)
• Aluminum heat exchanger: very low pressure drop (~100 mbar)
• Refrigerant: R-134a (used across the range)
• Maximum working pressure: 16 bar
• Operating limits: up to 60°C inlet temperature and 50°C ambient temperature (tropical conditions)
• Controllers: DIGIPRO for DK10–DK130; ESD for DK140–DK260
• Compressors: scroll compressors from DK140 for improved efficiency and durability
• Integrated filtration (up to DK170): X-element coalescing filter for water removal down to 1 µm; Y-element coalescing filter for oil removal down to 0.01 ppm
• Designed for easy component access and compact footprint