Water Separators

High-Efficiency Walker Filtration Alpha Series Water Separators

Protect your downstream air dryers and particulate filters from heavy condensate slugs with <strong>Walker Filtration Centrifugal Water Separators</strong>. Integrating seamlessly into industrial compressed air networks, the Alpha Series combines proven high-velocity centrifugal separation technology with an innovative housing design to eliminate up to <strong>99% of bulk liquid water</strong> while maintaining an exceptionally low differential pressure drop.

Engineered without internal consumable components, these industrial moisture separators require no replacement filter elements, making them a highly cost-effective solution for moisture control. Every unit features a custom-designed internal spinner configuration with specialized vanes to eliminate low-efficiency zones, alongside a built-in vortex arrestor that stops moisture re-entrainment across the full range of system airflows.

Key Performance Engineering & Specifications:

  • Broad Flow Range capacities: Supports operating configurations from 6 SCFM up to 1500 SCFM.</li>
  • Advanced Flow Efficiency: Designed to maintain maximum moisture separation efficiency even at lower air velocities.</li>
  • Simplified System Maintenance: Equipped with an externally accessible automatic float drain valve, allowing service without disconnecting the main housing.
  • Rugged Housing Design: Features internal and external electrophoretic painting under an exterior polyester powder coating for maximum corrosion protection.
  • Certified Performance Standards: Fully tested and compliant in accordance with international <strong>ISO 12500-4:2009</strong> testing protocols.

Whether installed directly following an air compressor after-cooler or a wet receiver tank, Walker Filtration water separators deliver the reliable liquid extraction needed to maximize system lifespan. Browse our available model sizes and NPT connection profiles below to optimize your facility's air treatment framework.

Alpha Water Separators

Unique Centrifugal Module

Removes up to 99% of bulk water even at low velocities

External Drain Valve

Eliminates the need to access inside the water separator housing when servicing the drain

Modular Construction

Low cost connecting kits and new filter head design enables easy close coupling assembly

Integrating into Walker Filtration’s compressed air filtration range, the Alpha Water Separator combines proven Alpha centrifugal technology with a new forward thinking housing design to deliver market leading water removal efficiencies– eliminating up to 99% bulk water with continuously low differential pressure.

The custom engineered centrifugal module features unique vanes to eliminate points of low efficiency, and a vortex arrestor to stop re-entrainment - ensuring minimal operating pressure loss and maintaining excellent liquid removal, even at low velocities.

No replacement components are required, making Walker Filtration’s Water Separators a viable and cost effective solution for removing bulk water from compressed air.

  Auto Drain Manual Drain
Recommended Temp Range 34 ~ 176°F 34 ~ 248°F
Max Working Pressure 232 psig 300 psig
Typical Pressure Loss 0.8 psi
  • Energy Saving Water separators operate with consistently low differential pressure reducing both energy consumption and operating costs
  • Flexible Installation Modular design and accessible fixings enable simple close coupling assembly
  • Cost Effective No replacement components required
  • Externally Accessible Drain Valve Drain valve can be removed externally on larger models
  • Product Safety in Mind Guaranteed safe housing closure with rotational safety stop
  • Corrosion Protection Internal and external electrophoretic painting followed by a tough exterior polyester powder coating

A30006WS to A31500WS - Technical Specs

Flow Rates 6 SCFM to 1500 SCFM

Pipe Size Inlet Flow Rate
(SCFM)*		 Dimensions (Inches) Weight
(Lbs)		 Unit Model
A B C D
1/8" 6 1.97 0.67 6.18 2.36 0.6 A30006WS
1/4" 15 1.97 0.67 6.18 2.36 0.6 A30015WS
1/4" 25 2.76 0.91 9.09 2.76 1.3 A30025WS
3/8 35 2.76 0.91 9.09 2.76 1.3 A30032WS
1/2" 50 2.76 0.91 9.09 2.76 1.3 A30050WS
1/2" 70 5 1.26 11.22 3.15 3.7 A30070WS
3/4" 125 5 1.26 14.57 3.15 3.7 A30125WS
1" 175 5 1.26 14.57 3.15 3.7 A30175WS
1.25" 280 5.51 1.61 18.74 3.35 6.6 A30280WS
1.5" 320 5.51 1.61 18.74 3.35 6.6 A30320WS
1.5" 400 6.69 2.08 20 3.94 10.8 A30400WS
2" 700 6.69 2.08 27.87 3.94 10.8 A30700WS
2.5" 850 8.66 2.75 16.54 3.94 17.6 A30850WS
3" 1500 8.66 2.75 16.54 3.94 17.6 A31500WS

*Rated flow at 100 psig, reference conditions at 14.7 psi(a), 68°F

PRO XF Water Separators

Unique Centrifugal Module

Removes up to 99% of bulk water even at low velocities

External Drain Valve

Eliminates the need to access inside the water separator housing when servicing the drain

Threaded & Flanged Connections

2", 2 ½", 3" threaded and ANSI compatible 150lb (3" and 4") flanged connections

The PRO XF Water Separator uses centrifugal force to remove 99% of bulk water found in compressed air systems to avert water contamination. PRO XF Water Separators enhance the reliability of a compressed air system, eliminate the problem of costly downtime and are tested in accordance with ISO 8573-9.

Designed as part of the PRO XF range, the PRO XF Water Separator can be used individually or multi-banked with PRO XF Filter Modules to create a space-saving and cost effective filtration solution.

The centrifugal module has been custom engineered to feature unique vanes to eliminate points of low efficiency, and a vortex arrestor to stop re-entrainment - ensuring minimal operating pressure loss and maintaining excellent liquid removal, even at low velocities.

Available in 2", 2 1/2" and 3" threaded and ANSI compatible 150lb (3" and 4") flanged connections for pressures up to 232 psig. No replacement components are required for the PRO XF Water Separator, making it a viable, cost effective solution to removing bulk water from compressed air.

Recommended Temp Range: 35 ~ 176°F
Max Working Pressure: 232 psig
  • Energy Saving Operates with consistently low differential pressure, reducing both energy consumption and operating costs
  • Cost Effective No replacements components are required
  • Space Saving Modular Construction The PRO XF Water Separator can be installed individually or banked to PRO XF Filter Modules using slim-line connectors and one set of inlet and outlet ports
  • Corrosion Protection Internal and external electrophoretic coating
  • Externally Accessible Drain Valve Drain valve can be removed externally, without having to gain access to the internal of the filter. Simply unscrew from the bottom and remove

XF200WS to XF400WS - Technical Specs

Flow Rates 700 SCFM to 3000 SCFM

Pipe Size Inlet Flow Rate
(SCFM)*		 Dimensions (Inches) Weight
(Lbs)		 Unit Model
A B C D E
2" 700 9.13 4.57 25.59 11.81 6.73 26.0 XF200WS
2.5" 850 9.13 4.57 25.59 11.81 6.73 26.0 XF250WS
3" 1500 9.13 4.57 25.59 11.81 6.73 26.0 XF300WS
3" Flanged 1500 13.86 4.57 25.59 11.81 6.73 34.6 XF300FWS
4" Flanged 3000 18.00 4.57 25.59 11.81 13.50 64.6 XF400FWS

*Rated flow at 100 psig, reference conditions at 14.7 psi(a), 68°F

All PRO XF Water Separators can be multi-banked to PRO XF Filter Modules to create compact and space saving filtration solutions.

Example: Air Purity Classification 1,-,1

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