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  1. Centrifugal Pumps
  2. Self Priming Centrifugal Pumps
  3. 30PB

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Centrifugal Pump - 30PB

This pedestal 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.

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  • Features
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Features

  • Self-Priming to 20 Feet Suction Lift
  • Rugged Bronze Construction
  • Heavy Duty Ball Bearings Suitable for Pulley Drive Applications
  • Bronze Models with Nickle Alloy Shaft (30PB-1)
  • Ideal for Marine Service. (Air Conditioning, Bilge, and Sea Water Recirculating)
  • Can Handle Most Difficult Solvents with Proper Seal Arrangement, Fluoroelastomer (S10) or Polytetrafluoroethylene (PTFE) (S11) available.
  • Body O-ring eliminates gasket problems

Performance

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). Pedestal centrifugal pumps may be driven by a variety of power sources such as electric motors, hydraulic motors, air motors or gasoline engines. A flexible coupling is used for in line drives, but V-belt drives are also common as an economical method to obtain a different pump speeds. Self priming centrifugal pumps must be operated in the horizontal position.

LIQUIDS & TEMPERATURES

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 212°F. 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 Nitrilewith 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.

SEAL OPTIONS

Note: Seal and shaft modifications below are not physically interchangeable. Consult factory for modification data.

Fluoroelastomer a Solvent Mechanical Seal: Mechanical seal for oils, fuels, lubricants, most mineral acids, and many solvents that attack other rubbers such as Carbon Tetrachloride, toluene, benzene, and xylene.

Polytetrafluoroethylene (PTFE) Mechanical Seal: For virtually all industrial chemicals, corrosives and solvents - as limited by compatibility of basic pump metal of construction.

Downloads

30pb-spec-sheet

30PB spec sheet

bronze-overview

bronze-overview

bronze-overview-metric

bronze-overview-metric

centrifugal-seal-replacement

centrifugal seal replacement

centrifugal-iom-instructions-4pg

Centrifugal IOM Instructions 4PG

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