YEOMANS PUMPS
Series 4000 SHONE® Pneumatic Ejectors
The SHONE Pneumatic Ejector is the superior pumping solution for low-flows, high heads and heavy solids applications. It is the ultimate in long-life sewage handling systems; typical operating life is measured in decades!

- Simple batch cycling; typically sized for 30 second filling / 30 second discharge
- Variable volume pumping while preserving consistent discharge scouring velocities
- No springs, diaphragms, seals or bearings to wear out
- Duplex units can be mechanically interlocked and/or alternated
- No electrical devices at or near the pumped media
- Air operation is standard; optional operation by plant steam system if desired
- Hermetically sealed cast iron receiver pot eliminates mess and odors
- Eliminates the need for open wet-wells or sumps
- Superior non-clog performance; ideal for handling large solids
- Easily handles liquids with entrained air or methane gas; ideal for scum handling service
- 25-Year Warranty
- Complete package systems including air compressors and storage tanks are available
- Virtually no maintenance is required
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NAVIGATION
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