CRL 2-4 Inch Sliding Vane Pumps

CRL 2- to 4-in pumps, which are part of the Cavitation Line of sliding vane pumps, are widely used for rugged bulk-transfer and recirculation applications which include industrial and food-processing systems, refrigeration, process plants and transport loading and unloading.

The 2-, 3-, 4-in port size models have capacities ranging from 25 to 300 U.S. gpm (95-1134 L/min). All models have a double-ended drive shaft arrangement, which allows the pump to be easily positioned for clockwise or counterclockwise shaft rotation. These pumps are equipped with an internal relief valve, and a replaceable casing liner and end discs for easy rebuilding of the pumping chamber if ever necessary. In addition, these pumps feature cavitation suppression liners to reduce noise, vibration and wear.

Standard construction materials for these models include silicon carbide mechanical seals and laminate vanes. Ports are offered with NPT tapped companion flanges or weld flanges (see companion flange chart below). Maximum differential pressure is 100 psi (6.89 bar) for all models.

Standard base-mounted unit assemblies are available from the factory with helical gear reduction or V-belt drives. All assembled units are available with or without motors. For dimensions of assembled pump units, refer to catalog dimension sheets. Alternate drive arrangements include P.T.O., hydraulic motor or engine drivers.

Blackmer fully Integrated Unit Assemblies are the pre-engineered and pre-designed drop-in pumping solution. These unit assemblies, include motor, gearbox, baseplate, coupling safety covers, and a CRL Sliding Vane Pump (2, 3 & 4-inch size). No alignment required with these pre-configured fully Integrated Unit Assemblies as they are ready for immediate drop-in installation.

Features and Benefits

• Cavitation suppression liner design for reducing the noise, vibration, and wear normally caused by entrained vapors
• Replaceable casing, liners and end discs allow easy rebuilding of the pumping chamber to like-new condition
• Ductile-iron construction with internal relief valve
• Blackmer mechanical seal and ball bearing construction provide maximum reliability
• Symmetrical bearing support assures even loading and wear for long life
• Adjustable relief valve protects pump against excessive pressures
• External ball bearings are isolated from pumpage by mechanical seals to maximize bearing life and minimize contamination risk
• Advantages of sliding vane technology:
  • Unique sliding-vane pump design self-adjusts for wear to maintain flow rates
  • Excellent self-priming and dry-run capabilities
  • Sliding vane design provides sustained performance and trouble-free operation
  • Easy maintenance: vanes can be easily replaced without removing the pump from the piping system
  • High suction lift and line-stripping capabilities
  • Low maintenance and low life-cycle costs

Applications

CO₂:

• Recirculation
• Processing
• Bulk transfer
• Truck & transport
• Railcar unloading
• Vapor recovery

Performance and Specifications

Dimensions

Materials of Construction

Pump Options

Connection Options

Vane Options

Elastomer Options

Maintenance Kits

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