Wright Pump TRA20 Positive Displacement Circumferential Piston Pumps

Wright Pump, TRA20, Positive Displacement, Circumferential Piston PumpsThe reliablility of Wright Pump's TRA®20 positive displacement circumferential piston pumps has been proven over many decades. The Wright TRA®20 positive displacement circumferential piston pumps robust design and easy cleanability make it applicable for all sanitary fluids.

Wright TRA®20 circumferential piston pumps gentle action on shear-sensitive liquids, or slurries with soft solids, makes them the preferred technology for all areas of food processing, beverage and cosmetic manufacturing, worldwide.

Typical Applications:

Dairy, Bakery, Meats, Canned foods, Beverages, Candy, Flavorings, Dressings, Cosmetics, Pharmaceuticals, Industrial.


  • Time tested and proved circumferential piston design

  • Exceptional engineering and manufacturing qualit

  • Parts interchangeable with Waukesha® U2 series pump part

  • Wright TRA®20 pumps are drop-in replacements for equivalent sized Waukesha® U2 pump

  • Wright can remanufacture TRA®20 series or Waukesha® U2 series pumps up to three time

  • The TRA®20 series allows optional CIP desig

  • Most TRA® models offer higher pressure capabilities than their equivalent TRA®10 model, all of which are rated to 200 PSI (14 Bar), except the model TRA®10 0450, which is rated to 400 PSI (27 Bar)

Manufactured by Wright Pump - A Unit of IDEX Corporation

TRA®20 Series is a registered trademark of Wright Pump - A Unit of IDEX Corporation

Waukesha® is a registered trademark of United Dominion Industries/SPX Corp.


  • Helical timing gears offer higher load carrying capabilities and reduce noise for quieter operation

  • Durable powdercoated gearbox standard. Helps prevent flaking and corrosion common to painted gearboxes

  • Stainless steel bearing retainers standard. Prevents rusting common to carbon steel bearing retainers used by others

  • Hard-faced SiC/SiC single mechanical seals standard. Double seals with flush optional

  • Rotor retainers are tensioned by washers to prevent loosening. Both rotors and rotor retainers have O-ring seals to ensure CIP capabilities

  • intelligent oil plug positioning on back of pump helps keep washdown spray out of gearbox oil

  • Threaded grease fittings (not push-in) prevent dislodging. Access on both sides of pump makes greasing easier

  • Four-way gear case mounting allows horizontal or vertical porting, plus flexibility to position drive shaft to match reducer or gearmotor input

  • Optional porting for CIP models to allow vigorous flushing throughout all internal chambers

Technical Specifications:

  • Capacity Range: 0.1 to 310 gpm (0.02 to 70.4 m³/hr)

  • Pressure Range: to 500 PSI/34 Bar

  • Temperature Range: -40°F to +300°F (-40°C to +150°C) Note: Hot clearances required for high temp operation.

  • Viscosity Range: 28 to 910,000 SSU (1 to 200,000 cPs) Note: Consult factory for applications greater than 910,000 SSU/200,000 cSt. Chocolate clearances available.

TRA®20 Series Brochure

York Fluid Controls Limited, York, Fluid, Controls, Limited

Liquid Handling Equipment Specialists Since 1960

About Us

Established in 1960, York Fluid Controls Limited is a leading stocking distributor of fluid transfer and process pumps, positive displacement and centrifugal pumps, liquid filtration, valves, mixers and tanks. York offers an extensive range of services, including a complete repair and test centre, an engineering department, custom fabrication, and a machine and assembly shop. York serves organizations of all sizes and from all industries, throughout Canada. Reliability, service excellence, a desire to solve customers' problems and the highest ethical standards underpin this family-owned company and all that it does. Learn More


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