NH3 Pump Solutions for Agricultural, Industrial, and Refrigeration Applications
Anhydrous Ammonia (NH3) plays a vital role in agriculture, refrigeration, and chemical manufacturing, among many other industries. For decades, Smith Pumps has provided trusted pumping solutions that help customers transfer ammonia safely, efficiently, and with confidence.
Smith Pumps offers pump solutions with flow rates from 2.5 to 250 GPM (9 to 946 LPM) for a wide range of applications, including cylinder filling, high-volume bulk transfer (such as nurse tanks), truck delivery, loading/offloading, ISO containers, and industrial refrigeration systems. With proven designs and a worldwide distribution network, Smith Pumps continues to be a reliable choice for agricultural, industrial, and refrigeration professionals who depend on consistent, well-engineered anhydrous ammonia transfer equipment.
Applications
- Cylinder Filling
- High-volume Bulk Transfer
- Ground Pumps
- Truck Delivery
- ISO Containers
- Recirculation Systems
Operating Parameters/Approvals
Smith Precision Products Company’s Quality Management System is registered to meet the requirements of ISO 9001:2015 Certified by NQA. In addition, our NH3 products comply with applicable UL and EU/UK approvals, including the PED, Machinery Directive, and ATEX/UKEX when applicable.
Performance Specifications
Rated Flow Capacity:
2.5 to 250 GPM (9.5 to 946 LPM)
Temperature Range:
-40°F to +100°F (-40°C to +38°C)*
Maximum Allowable Working Pressure:
400 psi (28 bar)*
Maximum Differential Pressure:
75 psi (5 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.
