Oberdorfer 300B Series Self Priming Centrifugal Pump
FEATURES
Pump Body:
Bronze
Ports:
1" NPT
Flow:
22 GPM Max
Pressure:
15 PSI Max, 35 feet of head
Impeller:
Centrifugal
Shaft Seal:
Mechanical Buna Seal Standard, Viton or Teflon Optional
Shaft:
Stainless Steel Standard, Monel Optional
Motor / Drive:
Attaches to NEMA C flange jet pump motors with threaded shaft of stainless steel or monel. We can supply additional motors and assemble if required.
APPLICATIONS / CHARACTERISTICS
This close coupled style bronze self-priming centrifugal pump is equipped with high quality ball bearings permanently filled with grease for maintenance free operation. The main shaft seal is a mechanical face type seal of proven reliability. Unlike positive displacement pumps centrifugal pumps have larger internal clearances as the pressure is generated by centrifugal force and high liquid velocity. These pumps can handle impurities in the liquid and the flow in the discharge line may be throttled or shut off without the need for a relief valve.
FEATURES
Self-Priming to 20 Feet Suction Lift
Rugged Bronze Construction
Ideal for marine service (air conditioning, bilge, and sea water recirculating).
O-Ring Housing seal eliminates gasket problems
Auxiliary Connections - for convenient priming and draining
Multiple Mechanical Shaft Seal Options -for various applications
Pump Heads mount to Standard Footed Nema 56J Jet Pump Motors
Shafts : 416 Stainless, Nickel Alloy, or 316 Passivated Stainless
Multiple motor options including Explosion Proof
For Pedestal Style, see 30PB
Optional Lifting Handle
DRIVE
Centrifugal pumps are designed for single rotation and are non reversible. Standard rotation is counter clockwise looking at the pump inlet port (clockwise facing pump shaft). Close coupled centrifugal pumps may be driven by a variety of power sources such as electric motors, hydraulic motors or air motors. Self priming centrifugal pumps must be operated in the horizontal position.
LIQUIDS & TEMPERATURES
Capacity - Water 60o F - Gallons Per Minute
Maximum lift without foot valve is 10 feet.
Bronze pumps are suitable for most common liquids in the pH range from 4-11. If in doubt consult with factory or check the Oberdorfer™ Chemical Resistance Guide booklet. The temperature limit for bronze pumps is 212F. Higher temperatures are possible with fluoroelastomer or Polytetrafluoroethylene (PTFE) seals. Centrifugal pumps are not well suited for pumping viscous liquids. Viscosities up to 2000 SSu may be handled resulting in reduced performance and efficiency.
Pump seal is mechanical carbon face type mated to ceramic wear face for maximum durability. Other seal components are made of Nitrile with low swell characteristics for compatibility with a wide range of liquids including many chemicals and solvents.
SUCTION LIFT
Up to 22 gallons per minute water flow and suction lift of 15 feet without a foot or check valve (25 foot suction lift using a foot or check valve and a filled inlet line). A 1/2” pipe plug on the tank top is for initial filling of priming chamber and inlet line--pump priming is automatic thereafter.
300B is Oberdorfers - Self Priming Centrifugal Pump Head Only Bronze
