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Many systems have the need for liquids to be drained from gas systems.  The most typical application would be draining water from compressed air tanks.  Ambient water vapor gets compressed along with air as it passes through an air compressor, but as the pressure of air rises its ability to hold moisture decreases.  This results in liquid water literally being squeezed out of the compressed air.  This water collects in low spots in compressed air piping system.  Water also gets carried along with the compressed air through the piping as it travels to air tools and paint booths.  Because water is corrosive to most air piping systems, and because water can damage air tools, air cylinders and other equipment, draining water from air compressor tanks is a constant requirement.  Since steam traps perform a similar function draining condensate from steam systems, they are commonly used, with slight modifications, as liquid drain traps.

Watson McDaniel manufactures a broad range of liquid drain traps suitable across a wide array of applications.

bulletSeries WLDE Float Type Liquid Drainers
bulletSeries WLD600 Float Type Liquid Drainers
bulletSeries WLD1800 Guided Float Liquid Drainers
bulletSeries WLD1600 Float Type Liquid Drainers
bulletSeries WLD1500 Inverted Bucket Liquid Drainers
bulletSeries WLD1700 Thermodynamic Liquid Drainers
bulletSeries WLD9000 Blast Discharge Liquid Drainers


Series WLDE

The Series WLD1600 Liquid Drainers are industrial grade ultra high capacity float type drain traps designed for process applications with very high loads or low differential pressures.  These traps uniquely feature ductile iron bodies, all stainless steel internals, and parallel piping connections.  Certainly the most advanced high capacity float type liquid drainers available today.

Series WLDE

bulletCapacities: to 314000 lbs/hr [142000 kg/hr], SG=1.0
bulletMaximum operating pressure: 200 psig [13.8 bar]
bulletSizes: 1-1/2", 2", and 2-1/2"
bulletConnections: NPT
bulletInternal materials: Stainless steel
bulletBody material: Ductile iron
bulletWeight: 23 to 92 lbs [10 to 42 kg]


Series WLD600

The Series WLD600 Liquid Drainers are industrial grade float  type drain traps.  With bodies constructed of cast steel and all stainless steel internals, this unit is designed to class 400 with shell design for 600 psig piping systems.  These drainers are ideal for process applications in the HPI/CPI industries.

Series WLD600

bulletCapacities: to 78000 lbs/hr [35400 kg/hr], SG=1.0
bulletMaximum operating pressure: 465 psig [32.1 bar]
bulletSizes: 3/4", 1", 1-1/2", and 2"
bulletConnections: NPT, socket weld, flanged
bulletValve plug and seat: Hardened stainless steel
bulletBody material: Cast A216 Grade WCB carbon steel,
   optional cast A351 grade CF3 stainless steel
bulletWeight: 25 to 107 lbs [11 to 49 kg]


Series WLD1800

The Series WLD 1800 Liquid Drainers are all stainless steel, non repairable, float type drain traps.  They are designed to discharge unwanted moisture and condensate from compressed air and other systems.  The stainless steel internals and body construction provides corrosion resistance in aggressive environments.

Series WLD1800

bulletCapacities: to 2150 lbs/hr [975 kg/hr], SG=1.0
bulletMaximum operating pressure: 400 psig [27.6 bar]
bulletSizes: 1/2" and 3/4"
bulletConnections: NPT
bulletValve plug and seat: Hardened stainless steel
bulletBody material: 304 stainless steel
bulletWeight: 3 lbs [1.4 kg]

Series WLD1800R


Series WLD1600

The Series WLD1600 Liquid Drainers are economical, float actuated type, drain traps.  They are designed to continuously discharge unwanted moisture and condensate from compressed air systems.

Series WLD1600

bulletCapacities: to 6040 lbs/hr [2740 kg/hr]
bulletMaximum operating pressure: 125 psig [8.6 bar]
bulletSizes: 3/4", 1", 1-1/4", 1-1/2", and 2"
bulletConnections: NPT
bulletValve, seat, float materials: Stainless steel
bulletBody material: Cast iron
bulletWeight: 7-1/2 to 40 lbs [3 to 18 kg]


Series WLD1500

The Series WLD1500 Liquid Drainers are economical, inverted bucket type, drain traps.  They are designed to continuously discharge unwanted moisture or condensate from compressed air systems.  These units have the ability to handle dirt and oil since the discharge port is located at the top.

Series WLD1501, WLD1502, WLD1504

bulletCapacities: to 4835 lbs/hr [2190 kg/hr]
bulletMaximum operating pressure: 200 psig [13.8 bar]
bulletSizes: 3/4" and 1"
bulletConnections: NPT
bulletInternals: stainless steel w/ hardened plug and seat
bulletBody material: Cast iron
bulletWeight: 5 to 30 lbs [2.3 to 14 kg]

Series WLD1521, WLD1522, WLD1524


Series WLD1700

The Series WLD1700 Liquid Drainers are economical disc type drain traps.  They are designed to discharge unwanted moisture and condensate from compressed air systems.  The stainless steel construction will provide years of trouble free service.

Series WLD1700

bulletCapacities: to 955 lbs/hr [430 kg/hr]
bulletMaximum operating pressure: 600 psig [41.4 bar]
bulletSizes: 1/2"
bulletConnections: NPT
bulletBody Material: Hardened 420 stainless steel
bulletWeight: 3/4 to 3 lbs [0.3 to 1.4 kg]

Series WLD1700S shown with optional blowdown valve


Series WLD9000

The patented WLD9000 Liquid Drainer is constructed to be the state of the art system for removing unwanted moisture and condensate from compressed air systems.  The toggle actuated system is either fully open or fully closed.  This produces a blasting effect that virtually eliminates any possibility of clogging due to dirt, rust, or residual oil in the system.  The discharge valve is pneumatically actuated, and this portion of the drainer can be configured to operate from a variety of gas sources.  For ease of installation, it can operate with compressed air taken directly from the main body of the WLD9000.  It can also operate with gas from a clean dry air source or even bottled gas.  This configuration gives the best performance and the most trouble free installation available in the market today because the valve actuation system is totally isolated from the dirty, oily air system.

Series WLD9000

bulletCapacities: to 500 gal/hr [1890 kg/hr]
bulletMaximum operating pressure: 200 psig [13.8 bar]
bulletSizes: 
bulletInlet: 3/4"
bulletBalance: 1/2"
bulletOutlet: 1/2"
bulletConnections: NPT
bulletInternals: Stainless steel
bulletBody material: High tensile strength aluminum
bulletWeight: 14 lbs [6.4 kg]
 

Watson McDaniel Company
975 Madison Avenue
Valley Forge Corporate Center
Norristown, PA 19403
610.666.5711 (phone)        610.666.0404 (fax)

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