Description
EJECT Series — Syphon Pumps & Ejectors
The EJECT Series Syphon Pumps and Ejectors are engineered for reliable liquid movement using steam or water as the motive fluid. These units operate on the ejector principle, where a high-velocity jet creates a pressure drop that induces suction through a secondary inlet. Designed for exhausting, agitating, aerating, pumping, and mixing applications, the EJECT Series provides dependable performance in industrial, utility, and process environments. Available in Bronze or Cast Iron with threaded NPT connections, these ejectors are suitable for systems handling water or steam at pressures up to 100 PSIG.
Product Overview
- Steam or water-driven syphon pumps for industrial fluid handling
- Operates on the ejector principle to induce suction and transfer liquid
- Suitable for pumping, mixing, aeration, agitation, and exhausting applications
- Available in Bronze (1/2" to 1-1/2") and Cast Iron (2")
- Two-inlet design: primary motive inlet and secondary suction inlet
- Discharge outlet delivers induced flow efficiently with no moving parts
Material Specification
- Body (1/2" to 1-1/2"): Bronze
- Body (2"): Cast Iron
Technical Specification
- Sizes: 1/2" – 2"
- Connection: Threaded, NPT
- Maximum Operating Pressure: 100 PSIG
- Maximum Suction Fluid Temperature: 130°F
Operating Principles
Syphon Pumps and Ejectors function by directing high-velocity motive fluid (steam or water) through a nozzle. This high-speed jet creates a pressure drop at the suction inlet, drawing fluid into the device. The combined flows discharge through the outlet at a controlled pressure. With no moving parts, the system offers highly reliable operation in challenging environments.
Applications include exhausting air or gases, transferring fluids, agitating tanks, aerating water, circulating liquids, and general industrial pumping operations.
EJECT Series – Model Selection & Ratings
The following EJECT Series models are available in Bronze and Cast Iron configurations with a range of motive and suction fluid options.
| Size / Connection | Model Code | Motive Fluid | Suction Fluid | Weight (lbs) |
|---|---|---|---|---|
| 1/2" NPT | EJECT-12-N-S | Steam | Water | 0.75 |
| 1/2" NPT | EJECT-12-N-W | Water | Water | 0.75 |
| 3/4" NPT | EJECT-13-N-S | Steam | Water | 1.00 |
| 3/4" NPT | EJECT-13-N-W | Water | Water | 1.00 |
| 1" NPT | EJECT-14-N-S | Steam | Water | 0.75 |
| 1" NPT | EJECT-14-N-W | Water | Water | 0.75 |
| 1-1/4" NPT | EJECT-15-N-S | Steam | Water | 3.75 |
| 1-1/4" NPT | EJECT-15-N-W | Water | Water | 3.75 |
| 1-1/2" NPT | EJECT-16-N-S | Steam | Water | 4.75 |
| 1-1/2" NPT | EJECT-16-N-W | Water | Water | 4.75 |
| 2" NPT | EJECT-17-N-S | Steam | Water | 7.50 |
| 2" NPT | EJECT-17-N-W | Water | Water | 7.50 |
Cross Reference
Comparable to industrial steam and water ejectors used for pumping, mixing, aeration, and general fluid-handling applications.

