Reciprocating Plunger Pumps

The RDP range is a series of Reciprocating Plunger Pumps in a variety of sizes in Triplex and Quintuplex formats. Hayward Tyler and Ruhrpumpen are able to partner to supply these to comply with existing nuclear codes including ASME and RCC-M.

Design Features

Design Features of Reciprocating Plunger Pumps

The RDP series of Reciprocating Plunger Pumps are suitable for handling a variety of liquids for nuclear applications. The RDP pump series are a type of positive displacement pump where a smooth cylindrical plunger slides through the seal, making it different from piston pumps and allowing higher pressures.

  • A variety of sizes in Triplex and Quintuplex formats
  • Designed in accordance with ASME and RCC-M
  • Stuffing box can be removed without pump disassembly
  • Excellent noise and vibration characteristics < 85dB(A)
  • Spring loaded, auto adjustment braided compression and chevron packing, minimizes leakage
  • Valves in a cartridge design, easy removal and replacement
  • Configurable for drives, lubrication and skids
  • Design life of 20 years

Package Options:

  • Dampeners, PSV’s and instrumentation can mount directly to pump head
  • Motor can mount directly to top of crankcase for compact offshore footprint
  • ATEX compliance
  • Package condition monitoring
  • Various seal and power end lubrication options
  • Electric motor
  • Diesel or petroleum engine
  • Hydraulic motor
  • Variable speed drive
  • Various transmission options including: Gearbox / V-belt drives
Codes & Specifications

Codes & Specifications

Operating Data

Max Capacity1611 USgpm366.5 m3/hr
Max Discharge Pressure14,500 psi1,000 bar
Temperature-104°F to 392°F-40°C to 200°C
Max Pump Speed450 rpm (see note 3)
Pipe Size1″ to 8″20 to 200mm


  1. For applications outside this range, please contact us.
  2. Max Flow and Max Pressure cannot be met at the same time.
  3. Maximum speed allowed by API674, not always applicable for Nuclear applications.

Codes and Compliances

  • ASME Section VIII and III including stamp (N, NS, NPT)
  • Nuclear Safety Related or Non-Safety related
  • Pressure Equipment Directive (PED)
  • 10CFR21 and 10CFR50
  • ISO 9001
  • NQA-1
  • RCC-M and RCC-E
  • CAN/CSA-N285.0
  • Other international codes as required.
Hydraulic Range

Hydraulic Range



Water/Boron Pumps Injection

Chemical injection


Sectional Arrangement

Hover over the numbers below for details about each feature.

Click to view larger image

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