Oberdorfer 109MB 1-1/4 in. NPT x 1 in. NPT Bronze Centrifugal Pump, Mechanical Seal, 75 GPM

Oberdorfer's centrifugal pumps have a single rotating metal impeller. Liquid enters at the center and is thrown outward radially by centrifugal force. The impeller is not in contact with other pump parts resulting in quiet, efficient, pumping action. The flow produced is not positive which permits the discharge line to be shut off completely without danger of overloading motors or bursting lines. Consequently a relief valve is not required. The liquid flow varies directly as the pump speed—the higher the speed the greater the flow. Horsepower required varies directly as flow and pressure. Maximum horsepower is required with a wide open discharge line. This is the point of maximum flow. With a throttled discharge, the flow decreases at a greater rate than the pressure increases thereby requiring less horsepower at the higher pressures. This is known as an “unloading” feature of the pump.

Notes: Pump only. Motor not included.

Features

• Rugged bronze construction
• A standard in the marine air conditioning industry
• Extremely quiet operation
• O-ring housing seal eliminates gasket problems
• Teflon barrier seal to protect motor bearings
• Handles contaminated liquids
• Discharge port orientation flexibility
• Mechanical seal: carbon/ceramic
• Pump heads mount to standard footed NEMA 56J jet pump motors
• 300 series Stainless Steel standard also optional Monel
• Multiple motor options available

Specifications

• Series: 109MB
• Type: Centrifugal Pump
• Material: Bronze
• Seal: Mechanical
• Port Size: 1-1/4 in. NPT x 1 in. NPT
• Maximum Flow Rate: 75GPM
• Maximum Pressure: 23 PSIG (Dead Head)

Downloads

Product Manual (PDF Download)

Datasheet (PDF Download)

Centrifugal Seal Replacement (PDF Download)