Engineered for Precision Temperature Control
Heat transfer fluids play a vital role in the transfer of thermal energy between components by circulating within a closed-loop system. Smith Pumps has been the leading manufacturer of heat transfer fluid pumps, working alongside customers who depend on accurate, repeatable temperature control in demanding environments. We design pumps that move a wide range of heat transfer fluids smoothly and reliably, with temperature ranges from -100F to +400F, flow rates from 2.5 GPM to 250 GPM (9 to 946 LPM) to support both recirculation and bulk transfer applications.
These pumps are commonly used in thermal testing chambers across essential industries such as aerospace, automotive, electronics, energy, and advanced manufacturing—where components and systems must be tested across broad temperature ranges—and in high-volume transfer systems where steady flow, material compatibility, and dependable performance are critical.
Compatible Fluids:
- Coolanol
- D-Limonene
- DowTherm SR-1
- Dynalene
- Ethylene Glycol
- FC-44
- FC-70
- FC-770
- FloCool 180
- Galden DO2TS
- HT 70
- HT 135
- Lexsol
- Methanol
- Novec 1230
- Polyalphaolefin (PAO)
- PFS-1
- Propylene
- Propylene Glycol
Applications
- Recirculation Systems (Thermal Test Chambers)
- High-volume Bulk Transfer
Operating Parameters/Approvals
Smith Precision Products Company’s Quality Management System is registered to meet the requirements of ISO 9001:2015 Certified by NQA.
Performance Specifications
Rated Flow Capacity:
2.5 to 250 GPM (9.5 to 946 LPM)
Temperature Range:
-100°F to +400°F (-73°C to +205°C)*
Inlet Pressure:
4 psiA to 400 psi (0.28 to 28 bar)*
Maximum Differential Pressure:
For liquids under 1 cP viscosity, general maximum differential pressure range between 50- 125 psi (4-9 bar).
For liquids greater than 1 cP , maximum differential pressure (intermittent duty) up to 300 psi (21 bar).
Duty Cycle:
2 hours continuously at maximum RPM. For pumps operating for more than 2 hours, we recommend our heavy-duty “NSSA” option and operating the pump at ½ the maximum drive speed. Please contact our factory for the recommended pump model/motor combination.
*Contact our engineering department if your application requires a different temperature or pressure than listed above.
**All pumps are built for their intended liquid service and cannot be interchanged due to differences in materials of construction. Never use a pump for a liquid service other than specified.
100% Tested Before Shipment
All Smith pumps are tested three times before shipment under our ISO 9001 quality management system. Mechanical seals are tested for leaks, pump casings are pressure tested, and each pump is tested to verify flow performance before leaving the factory.
Smith’s proprietary mechanical shaft seal assembly allows every seal to be pre-assembled and factory-tested prior to shipment, whether for a new pump or as a spare. The result is faster installation, reduced downtime, and dependable sealing performance you can trust. Learn more about Smith’s mechanical shaft seal design.
Testing Criteria:
- Every mechanical seal is liquid tested to inspect for leakage.
- Casings in the pumps are pressure tested to 400 psi after assembly.
- Pumps are then liquid tested to meet pump flow rate expectations.
