Oberdorfer S417 Stainless Steel Gear Pump with W88 Gears and Carbon Bearings
The Oberdorfer S417 is a precision-built gear pump end made for facilities that can't afford a pump failure mid-process. Its 316 stainless steel housing and shafts stand up to aggressive chemistries, while the W88 stainless steel drive and idle gears add an extra layer of hardness and wear resistance where metal-on-metal contact matters most. Carbon graphite sleeve bearings, slotted for continuous lubrication, keep the shaft and gears running smoothly even under sustained duty cycles, and the three-piece, O-ring sealed housing comes apart easily whenever service is needed.
This pump isn't limited to one type of operation. It's equally at home moving corrosive chemicals on a processing line, transferring high-purity fluids in a pharmaceutical setting, handling ingredients in food and beverage production, or working inside an OEM skid system built by a third-party equipment manufacturer. With flow up to 10 GPM, pressure capability up to 150 PSI, and a temperature range spanning -50°F to 450°F, it's engineered to flex across a wide range of industrial, agricultural, and marine fluid-handling needs rather than being boxed into a single niche.
Day-to-day reliability comes from thoughtful details: bi-directional flow so the same pump can serve reversing applications, self-priming performance with up to 20 feet of suction lift, and a CHEMKIT rebuild kit available simply by adding a "K" to the model number. For engineers and maintenance teams who need a pump that's easy to specify, install, and eventually service without guesswork, the S417 is built to make that process straightforward.
Key Features
- 316 stainless steel three-piece housing for broad chemical compatibility
- W88 stainless steel drive and idle gears for added hardness and wear resistance
- Carbon graphite sleeve bearings, slotted for continuous shaft and gear lubrication
- Helical gear design that reduces operating noise
- Bi-directional flow capability for reversing-service applications
- Self-priming operation with up to 20 feet of suction lift
- O-ring sealed, thru-bolt construction for fast disassembly and service
- CHEMKIT repair kit available (add "K" to the model number) for full-pump rebuilds
Applications
- Chemical processing and corrosive liquid transfer
- Pharmaceutical and high-purity fluid handling
- Food and beverage production
- OEM equipment and skid-mounted fluid systems
- General industrial fluid transfer and recirculation
- Agricultural liquid transfer
- Marine fluid transfer systems
Specifications
- Model: S417 (Part Number OBS41716CA)
- Port Size: 3/4" FNPT or BSPT
- Flow Rate: Up to 10 GPM (37.9 LPM)
- Pressure: Up to 150 PSI (10.3 bar)
- Temperature Range: -50°F to 450°F (-46°C to 232°C)
- Viscosity Handling: Up to 100,000 cP at reduced shaft speeds
- Housing Material: 316 Stainless Steel
- Shaft Material: 316 Stainless Steel
- Gear Material: W88 Stainless Steel (drive and idle gears)
- Bearing Material: Carbon Graphite, slotted for lubrication
- Mounting: NEMA and IEC compatible, metric hardware
- Configuration: Pump end only (close-couples to motor or connects via flexible coupling)
Frequently Asked Questions
Q: Can the Oberdorfer S417 handle high-viscosity fluids?
A: Yes. At reduced shaft speeds, it can move fluids up to 100,000 centipoise, so it works for thick or syrupy liquids as well as thin, free-flowing chemicals.
Q: What's the advantage of W88 gears over standard stainless steel gears?
A: W88 stainless steel offers greater hardness and wear resistance than standard 316 stainless, which helps the gear set maintain tighter clearances and hold up longer under repeated cycling.
Q: Is a rebuild kit available for this pump?
A: Yes. Adding a "K" to the end of the model number (OBS41716CAK) orders a CHEMKIT repair kit with the seals, bearings, gears, O-rings, shafts, keys, and retaining rings needed for a complete rebuild.
Q: Does this listing include a motor?
A: No, this is the pump end only. It's designed to close-couple to a NEMA- or IEC-frame motor, or connect through a flexible coupling for direct-drive setups.
Q: Can the S417 run in reverse?
A: Yes. The gear design supports bi-directional flow, so it can be used in systems that need reversing flow without swapping internal components.
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