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JAECO FRAM 511 duplex diaphragm chemical pumps are hydraulically actuated metering pumps designed for accurate, completely leak-proof metering of difficult-to-handle liquids. 

The Fram 511 Duplex has flow rates from 3.4 GPH to 28 GPH with a maximum pressure of 500 PSI. 

Separate chambers for hydraulic fluid and gear lubricant make possible the use of the best medium for hydraulic diaphragm pulsing and the best medium for gear lubrication. 

The results are better pump performance and longer pump life. 

This diaphragm pump is duplex, includes a 1/3 horsepower motor, and 316 stainless steel liquid ends.
Features
  • Separate chambers for hydraulic fluid and gear lubricant make possible the use of the best medium for hydraulic diaphragm pulsing and the best medium for gear lubrication. The results are better pump performance and longer pump life. 
  • Available in both simplex and duplex models. Field convertible from simplex to duplex. 
  • Patented, heavy-duty gear reducer system for superior performance. 
  • Hydraulically actuated diaphragm minimizes diaphragm fatigue. 
  • Built-in hydraulic relief valve protects the pump. 
  • Stroke rate easily automated using variable-speed drive. 
  • Capacity is adjustable while pump is running or idle. 
  • Capacity is adjustable for a turn-down ratio of 10:1. 
  • Easy-to-read stroke length adjustment dial. 
  • Available with or without motor. 
  • No plunger seals to leak or replace. 
  • Oil bath gear lubrication eliminates the maintenance required by packing grease or auxiliary oil systems. 
  • Top-mounted lube oil and hydraulic fluid fill ports for easy access. 
  • Single ball check valve, standard on both suction and discharge side of the pump, provides accurate metering and fast response. Valve ball turns with fluid flow, constantly presenting a new face to the seat, and therefore is self-cleaning. 
  • Accuracy of ± .5% at steady state. 
  • All units come epoxy painted, completely assembled on a base plate and have been fully tested.

Specifications

Motor

  • Single Phase 7235: 1/3 HP
  • Three Phase 7245: 1/3 HP

Flow Rate

  • 3.4 GPH to 28 GPH

Maximum Pressure

  • 500 psi

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