Oberdorfer 60P-S11 Bronze Centrifugal Pedestal Pump PTFE

Oberdorfer 60P-S11 Bronze Centrifugal Pedestal Pump with PTFE Seal

The Oberdorfer 60P-S11 is the chemical-duty variant of the proven 60P series, built specifically for demanding fluid transfer applications where standard seals simply won't hold up. What sets this model apart is its PTFE (Polytetrafluoroethylene) Chemlon mechanical seal, which pushes the temperature ceiling all the way to 500°F and makes it compatible with aggressive solvents, harsh chemicals, and difficult process liquids that would otherwise degrade a standard Nitrile or even Fluoroelastomer seal. The rugged all-bronze construction provides broad corrosion resistance across a pH range of 4 to 11, while the stainless steel shaft and lifetime-lubricated ball bearings keep maintenance needs to an absolute minimum.

This pedestal-mount pump is designed without a motor — it is built to be coupled to an existing drive system, either directly via electric motors running at 1725 or 3450 RPM, or through pulley drive at any intermediate speed. With a maximum output of 24 GPM and a maximum head of 53 feet, the 60P-S11 is well-suited for laboratories, chemical processing facilities, industrial plants, and commercial operations where quiet, consistent fluid movement is a priority. The single rotating bronze impeller operates without contact with other pump components, producing smooth, vibration-reduced flow while eliminating the need for a relief valve even when the discharge line is fully closed.

Key Features

• PTFE (Chemlon) mechanical seal rated to 500°F for handling strong solvents and aggressive chemicals
• All-bronze construction with corrosion resistance across pH 4 to 11
• Stainless steel shaft (416 or 316 passivated stainless available)
• External sealed ball bearings isolated from pumped fluid — greased for life, no maintenance required
• Single rotating bronze impeller with no contact against other pump parts for quiet, efficient operation
• No relief valve required — pump will not overload motor or burst lines on closed discharge
• O-ring housing seal eliminates gasket failures
• Discharge port orientation adjustable to 8 positions
• Designed for pulley drive or direct motor drive at 1725 or 3450 RPM
• Compact, portable pedestal design — pump head only, no motor included
• Handles clean or contaminated liquids compatible with bronze

Applications

• Chemical processing and solvent transfer
• Laboratory fluid handling
• Industrial plant utility service
• Commercial facilities requiring quiet pump placement in occupied spaces
• Office and public area fluid transfer installations
• HVAC and process cooling water systems
• Agricultural and irrigation fluid movement
• Light-duty fuel and oil transfer (compatible liquids only)

Specifications

• Model Number: 60P-S11
• Pump Type: Centrifugal, Pedestal Mount, Pump Head Only (no motor)
• Construction: All-bronze body and impeller
• Shaft Material: Stainless steel
• Mechanical Seal: PTFE (Chemlon) — S11 designation
• Standard Seal Option: Carbon/Ceramic with Nitrile (available separately)
• Maximum Flow: 24 GPM
• Maximum Head: 53 feet (23 PSI)
• Maximum Temperature: 500°F (PTFE/Chemlon seal)
• Maximum Shaft Speed: 3450 RPM
• Operating Speeds: 1725 RPM or 3450 RPM (direct drive); variable (pulley drive)
• Inlet Port Size: 3/4" NPT
• Outlet Port Size: 1/2" NPT
• Priming: Non-self-priming (flooded suction required; up to 15 ft suction lift with foot valve)
• Maximum Suction Lift (with foot valve): 15 feet
• Maximum Viscosity: 2000 Saybolt Seconds Universal
• Bearing Maintenance: None — sealed and lubricated for life
• pH Range: 4 to 11

Frequently Asked Questions

Q: What does the S11 designation mean on the Oberdorfer 60P-S11?
A: The S11 suffix identifies the mechanical seal type. In this case, it specifies a PTFE (Polytetrafluoroethylene) Chemlon seal rather than the standard Nitrile seal. This seal is designed for compatibility with strong solvents, difficult chemicals, and high-temperature service up to 500°F — applications where a standard seal would fail or degrade quickly.

Q: Does the 60P-S11 come with a motor?
A: No. The 60P-S11 is sold as a pump head only, without a motor. It is designed to be coupled to an existing electric motor or pulley-drive system. It is compatible with direct-drive motors running at either 1725 or 3450 RPM, or it can be pulley-driven at any intermediate speed to suit the application.

Q: Can the 60P-S11 self-prime or lift fluid from below?
A: This pump is not self-priming. For standard operation it must be installed below the fluid level so liquid reaches the pump by gravity (flooded suction). However, when a foot valve is installed at the start of the suction line and the pump and suction line are manually primed, the 60P-S11 can achieve a suction lift of up to 15 feet. The reliability of that lift depends entirely on the foot valve maintaining its seal.

Q: What liquids can the Oberdorfer 60P-S11 handle?
A: With its PTFE mechanical seal, the 60P-S11 can handle a broad range of aggressive solvents and difficult chemicals that are compatible with bronze. For general service, the bronze construction covers most liquids within a pH range of 4 to 11. Liquids contaminated with small solids or abrasives can be pumped, though some reduction in mechanical seal life should be expected. Highly viscous fluids above 2000 Saybolt Seconds Universal are not recommended.

Q: Can the discharge port orientation be changed during installation?
A: Yes. The 60P-S11 offers 8 discharge port orientation positions, giving installers meaningful flexibility when integrating the pump into an existing piping layout. This feature reduces the need for additional fittings or awkward pipe routing in tight installations.