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ZR/ZT oil-free air compressors for all your applications

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ZR/ZT oil-free rotary screw compressor

ZR/ZT oil-free air compressors for all your applications

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ZR/ZT oil-free air compressors for all your applications

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ZR/ZT oil-free air compressors for all your applications

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Optimize your installation with air compressor control systems

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air compressor optimizer 4.0

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Our newest central controller, the Optimizer 4.0 stabilizes your system and lowers your energy cost.
air compressor optimizer 4.0

Optimize your installation with air compressor control systems

Our newest central controller, the Optimizer 4.0 stabilizes your system and lowers your energy cost.
air compressor optimizer 4.0

Optimize your installation with air compressor control systems

Our newest central controller, the Optimizer 4.0 stabilizes your system and lowers your energy cost.
air compressor optimizer 4.0

Optimize your installation with air compressor control systems

Our newest central controller, the Optimizer 4.0 stabilizes your system and lowers your energy cost.
air compressor optimizer 4.0

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WSD, IWD, EWD, WD, TWD SERIES

Water separators and drains

WSD water separators and IWD, EWD, WD & TWD drains

Our IWD, EWD, WD and TWD solve all compressed air condensate discharge problems, even with heavily contaminated systems. The water separators and drains offer safe, dependable and economical condensate management.

Water separators and drains

Key technical specifications

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Description

Reliable and clean air

The air that leaves a compressor reaches 100% humidity. It also contains oil (unless you are using an oil-free compressor) and solid particles. Together, they form an abrasive, often acidic, oily sludge. Without air treatment, this murky mix will enter your compressed air system, corroding pipe work, damaging pneumatic tools and potentially compromising final products.

WSD Water separators

Our WSD water separators increase the lifespan and reliability of your compressed air cooler through efficient condensate management. The water separator prevents condensed water from building up in your air system. The separator comes as standard with Atlas Copco’s aftercoolers and can also be installed at any point in your system. Made entirely of rustproof material, these cyclone-based separators remove water aerosols to protect system components such as dryers and filters. Maintenance-free and without moving parts, they come with an automatic or a manual drain.

WSD water separators

Atlas Copco offers a wide range of drains, extending our premium quality throughout your compressed air.

The remaining humidity in compressed air turns into water as the air cools while it moves through the system. Because water causes corrosion and damage, drains must be installed throughout your network. Atlas Copco has a range of drains; automatic, electronic or timer drains, that will keep your aftercooler, dryer, air receiver, and other equipment working optimally.

Water drain

Discover our range of drains

Our IWD, EWD, WD and TWD solve all compressed air condensate discharge problems, even with heavily contaminated systems. The water separators and drains offer safe, dependable and economical condensate management.

IWD electronic drains

IWD electronic drains

IWD: LD 101C

The IWD electronic drain collects and removes liquid moisture from your air system effectively, reliably and efficiently. The zero-loss drain only releases its moisture content when it reaches a pre-set level. Leaving a minimal amount of moisture, the IWD ensures no energy can escape as the receiver empties. Thanks to its special housing, the IWD can be used in oil-lubricated and oil-free installations.

EWD electronic drains

EWD electronic drains

The EWD range of electronic drains offers safe, dependable and efficient condensate drainage. The intelligent drain function monitors condensate build-up and removes the liquid only when necessary, avoiding compressed air loss. Special EWD drains are also available for oil-contaminated condensate. The range can be delivered with additional hard coating for oil-free and aggressive condensate.

EWD 75

WD automatic drains

WD automatic drains

EWD 75

The WD 80 drain valve provides completely automatic drainage of the water that collects at the lowest point of a compressed air system (e.g. at the bottom of a receiver or cyclone separator). Its patented design ensures minimal maintenance.

TWD timer drain

TWD timer drain

The TWD timer drain removes condensate using a solenoid valve in combination with an electronic timer. Pre-selecting the timing and length of each drain cycle minimizes compressed air loss. Compact, easy to install and fully automatic, the TWD is a cost effective drain solution for compressed air filters and vessels.

TWD timer drain

Get a free quote from our Atlas Copco experts

Benefits

Technical benefits

Minimal maintenance, high reliability
With no moving parts, the water separators offer high reliability while requiring minimal maintenance. Both automatic and manual drain options are available.
Energy savings
The intelligent drain function monitors condensate build-up with liquid level sensors. It evacuates the condensate only when necessary to avoid wasting compressed air and to generate considerable energy savings.
Choose from a wide range
A wide range of EWD drains is available for oil-contaminated condensate. This includes models with an additional hard coating for use with oil-free and aggressive condensate.
EWD electronic drain

Specifications

WSD water separators technical specifications

Water separator type

Capacity range

Maximum working pressure

Connections

 

Dimensions

 

 

l/s

cfm

Bar

Inlet/outlet

WSD 25

7-60

15-127

20

G 1

WSD 80

50-150

106-318

20

G 1½

WSD 250

125-350

265-742

20

G 2½

WSD 750

300-800

636-1695

20

83 mm

IWD electronic drains technical specifications

Water separator type Capacity range Maximum working pressure Connections Dimensions  
  l/s cfm Bar Inlet/outlet Height mm Width mm Length mm
WSD 25 Jul-60 15-127 20 G 1 332 130 185
WSD 80 50-150 106-318 20 G 1½ 432 130 185
WSD 250 125-350 265-742 20 G 2½ 532 160 230
WSD 750 300-800 636-1695 20 83 mm 532 160 230

EWD electronic drains technical specifications

Drain type Maximum compressor capacity Maximum dryer capacity Maximum working pressure Dimensions  
  l/s cfm l/s cfm Bar Height mm Width mm Length mm
EWD 50 65 138 130 275 16 115 70 171
EWD 50 A 65 138 130 275 16 115 70 171
EWD 50 B 650 1380 1729 3640 16 115 70 171
EWD 50 L 650 1380 1729 3640 16 115 70 171
EWD 75 98 208 194 411 16 141 65 150
EWD 75 C 98 208 194 411 16 141 65 150
EWD 75 CHP 98 208 194 411 63 141 65 150
EWD 330 433 917 866 1835 16 162 93 212
EWD 330 C 433 917 866 1835 16 162 93 212
EWD 330 CHP 433 917 866 1835 25 162 93 212
EWD 1500 1950 4132 3900 8264 16 180 120 252
EWD 1500 C 1950 4132 3900 8264 16 180 120 252
EWD 16K C 21670 45920 43340 91830 16 280 254 280

WD automatic drains technical specifications

Drain type Maximum working pressure Drain capacity Connections  Dimensions  
  Bar l/h   Height mm Width mm Length mm
WD 80 20 200 G ½ 182 132 132

TWD timer drains technical specifications

Drain type Maximum working pressure Connections Dimensions  
  Bar Inlet Valve Height mm Width mm Length mm
TWD 16 G ½-¼ G ½ 126.5 131 95

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