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Universal 1 Series - 420/520 High Capacity - Positive Displacement Pumps

Positive Displacement Pumps designed to overcome the challenge of accurate pumping at high-volume capacities.
MODEL DISPLACEMENT
PER REVOLUTION		 NOMINAL
CAPACITY TO		 PRESSURE
PSI
420-UHC 1.62 Gal. (6.129 Liter) 640 GPM (145.4 m³/hr.) 200 PSI (13.8 bar)
423-UHC 1.62 Gal. (6.129 Liter) 640 GPM (145.4 m³/hr.) 200 PSI (13.8 bar)
520-UHC 2.38 Gal. (8.990 Liter) 830 GPM (188.5 m³/hr.) 150 PSI (10.3 bar)
523-UHC 2.38 Gal. (8.990 Liter) 830 GPM (188.5 m³/hr.) 150 PSI (10.3 bar)

MODELS 420-UHC AND 423-UHC

0-400 RPM speed range. 6", 150# flanged port size; suitable to 200 PSI (13.8 bar) differential pressure. Temperature range -40°F (-40°C) to 300°F (149°C).

Double barriers or seals protect at every opening to the pump chamber. Live steam or a sterile fluid is circulated between these double seals at the ports, in the cover and at the shaft seals form an impenetrable barrier to contaminants.

  AO CP D I J L O U 2X FLANGE SIZE
IN 27.25 49.60 18.75 33.60 9.75 39.19 14.25 3.875 22.50 ANSI
6"
MM 692.2 1259.8 476.2 853.4 247.6 995.4 362 98.42 571.5

Approximate shipping weight: 2600 lb. (1180 kg.).

Pump Curve 95-07086 for Model 420-UHC & 423-UHC || PDF

NOTES: Dimensions are for guidance purposes only. Contact your WCB Representative if more detailed measurements are needed. Waukesha Cherry-Burrell (WCB) curves are intended for use as an aid for preliminary selection of pumps by trained and qualified engineers. All selections must be reviewed by authorized WCB personnel prior to placing an order. WCB is not responsible for unauthorized or incorrect selections resulting from the use of these curves.

Body Standard:  316L Stainless Steel Options:

  • Flush taps for future double seals
  • Body retaining screws

Ports Standard:  S-Line Options:

  • Bevel Seat, I-Line, Q-Line; European DIN, SMS or RJT
  • Male NPT, 150 lb. & 300 lb. Flanges. (150 lb. standard on Model 320)
  • Rectangular Flange Inlet or Aseptic ports
  • Extended ports
  • Optional port sizes on 6, 18, 30 and 60 Models

Covers Standard:  316L SS plain cover, hex cover nuts Options:

  • Vent or drain connections
  • Aseptic, jacketed or vented

Rotors Standard:  Alloy 88 Twin Wing. Standard clearance for up to 180° F (82° C) Options:

  • Hot clearance to 300° F (149° C)
  • Clearance above 300° F (149° C) on application
  • Special & front face clearances and slotted rotor hub for special applications

O-Rings Standard: Buna-N Options:

  • Fluoroelastomer (FKM)
  • EPDM
  • Silicone
  • EPDM-SF

Seals Standard: Single Mechanical Options:

  • Double Mechanical
  • Seal faces:  Ceramic, Silicon Carbide, Tungsten Carbide, Carbon, John Crane Type 8B2 Carbon,  Seal Faces

Gearcase Standard: Painted cast iron WCB blue, 316L SS shafts, top shaft position, 17-4 PH shafts Options:

  • Steel-It paint
  • Lower shaft position
  • Pedestal shims for side mounted pumps. Left hand shaft position standard
  • Right hand shaft position on side mounted gearcase

Bases Standard: Flat plate, epoxy painted, with adjustable feet, SS coupling guard, and Lovejoy or Woods coupling Options:

  • Carbon steel channel

Drives Standard: Nord/Baldor Inline Option:

  • Right angle gear reducer