R134a Coolant Pump for 2-Phase Liquid Cooling System

Coolant pump for a patented, two-phase evaporative precision cooling system

P-266, 266-D-001

Features & Benefits

Application

A multinational industrial equipment supplier needed a coolant pump for a patented, two-phase evaporative precision cooling system.  The system uses a non-conductive refrigerant (R134a) to transfer heat in a modularized cold-plate, rack ready design targeted mainly for Data Center cooling applications.

Our customer’s primary technical challenges were related to develop a very high reliability positive displacement pump to handle a very low viscosity, low lubricity R134a refrigerant, similar to a smaller 2-phase pump previously designed by Cascon.

Solutions

Cascon’s CS-266 pump is optimized for our customer’s high density cooling system rated for 200KW.  The pump responds dynamically to changes in heat load via an input command voltage to the electronic motor control that provides a variable, proportional, flow rate response.  The design strategy leverages Cascon’s experience developing hermetic and semi-hermetic, positive displacement pumps for aerospace and other mission critical applications.  The design features a custom designed gerotor pumping element and bearing system, with integral 3phase 460V AC hermetic motor.  The motor rotor and stator operate flooded in the working fluid to eliminate rotary seals; the design uses only static o-ring seals.  A hermetic feed-through interface plate provides electrical connectivity between the wetted motor-rotor cavity and the electronic motor control. The pump is made in the USA.

Performance Parameters

Part Number
266-D-001
Application Fluid
R-134a
Supply Operating Voltage
460 VAC / 3-Phase
Drive Type
Electric
Pump Type
Gerotor
Circuits
Max Flow Max Pressure Operating Speed
Single-circuit 25 gpm 100 psi rpm
Temperature Range
-20 degF to +150 degF
Burst Pressure
1550 psi
Agency Compliance
ROHS, UL, ANSI
Design Life
50,000 hours

For High Density Cooling System

Coolant Pump, Made in the USA