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C | Range

Product catalog summary

Pump Application and Specifications
Rotary Power provides both standard and customized pump options, especially for fluids with viscosity below 20 cSt. Performance charts are available for standard models, with enhancements possible through special rotor and piston matching.

Pipework Sizing
Key considerations include the sizing of pump inlet or delivery and managing pressure drop through the pipeline.

Noise and Output Flow
Noise levels are influenced by displacement and speed. Pumps with variable displacement control should not operate below 10% of their full displacement.

Materials and Construction
C range pumps are constructed using high-grade steels and S.G. Iron, with components treated for corrosion resistance. Shaft seals are made of viton and PTFE on a ceramic bush.

Operating Pressures
Pumps are designed with hydrostatic bearing faces for efficiency and longevity. Inlet pressure must not exceed outlet pressure. Maximum outlet pressures are specified: 210 Bar for TDI fluid and 250 Bar for MDI, Polyol fluid.

Inlet Pressure Requirements
Adequate inlet pressure is necessary to maintain fluid stability and prevent cavitation. Shaft seal life is affected by case pressure, pump speed, and fluid cleanliness.

Shaft Seal Considerations
Shaft seal longevity is influenced by shaft speed, fluid lubricity, and contaminant levels. Seal options are specified using a code and charts.

Commissioning and Installation
Ensure correct shaft rotation and proper connection of inlet and outlet pipework. Use bleed points to fill the pump case before startup. Barrier fluids should lubricate outer shaft seals.

Operation and Maintenance
Maintain recommended inlet pressure and ensure the system is full of fluid. Regularly check barrier fluid levels and system cleanliness. Preventative maintenance includes keeping filters clean and inspecting for leaks.

Service and General Guidelines
Shaft seals require periodic replacement. Units returned for overhaul must be flushed clean. Protective plugs should remain until installation.

Drive Shaft Coupling and Mounting
A flexible drive coupling is recommended to avoid axial or radial loads. Proper mounting ensures correct fitting.

Accessories and Ordering Code
Magnetic drive couplings and relief valves are available upon request. Larger capacity pumps are detailed in the A range Axial Piston Pump and Motor catalogue.

Contact Information
Contact details for Rotary Power offices in the UK, USA, Germany, and India are provided for further inquiries.

Catalog excerpts

Rotary Power was established over 50 years ago and is part of the British Engines group. The British Engines group of companies design manufacture and market a wide range of engineered products for offshore, electrical, construction, engineering and other industries, employing over1,000 people in North East England. Features • Designed specifically for the Polyurethane foam industry from over 20 years application experience and development. • Uniform fluid temperatures throughout the pump. • Designed for high inlet pressure. Twin PTFE seals running on a ceramic bush allow up to 20 bar. • High...

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MAXIMUM PUMP SPEED (RPM) FOR FLUID VISCOSITY Technical data Technical data GUIDE TO PUMP SELECTION Notes for technical data table 1. Maximum allowable speed reduces for high viscosity fluids. Refer to Graph 1. 2. Minimum speed is determined by flow stability. 3. Pressures shown are for fluids complying with cleanliness codes stated in this table. 4. Outlet pressure must never fall below inlet pressure this includes during stationary and start up conditions. 5. Inlet pressure should be kept to the minimum value possible, based on the characteristics of the fluid and other factors - see application...

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Performance Isocyanate Performance Polyol C range performance data isocyanate C01 Delivery vs pressure Isocyanate C range performance data Polyol C01 Delivery vs pressure Polyol The graphs shown on this page indicate discharge flows at 1500rpm, various swash angles on Isocyanate Fluid (2000 cSt). Note: Figures shown do not include power loss when using magnetic drives. C01 DELIVERY V PRESSURE (ISOCYNATE, 3.5 cSt @ 1500 RPM) DO NOT OPERATE IN THIS AREA C Range Metering Pumps

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Barrier Ports (2off) 1/8" BSP 180 apart. Seal Delivery Port SAE 6000 series A12 C Range Metering Pumps

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C Range Metering Pumps 11

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Operating pressures - general The pump design features hydrostatic bearing faces for optimum efficiency and long life. The hydrostatic balance required for these bearings means that inlet pressure must never exceed outlet pressure, even when the pump is not rotating. This is normally simple to achieve on tank pressured systems. For systems using boost pump this may be possible by using a relief valve or by placing a check valve in parallel with the pump. This is to allow a possible flow from inlet to outlet so that pressures can be balanced from inlet to outlet during start up of the pump (this...

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Commissioning & installation Accessories & ordering code Magnetic drive couplings Relief valves Pump shaft rotation must be in compliance with the pump body indicators i.e. CW means clockwise shaft rotation whilst looking from the shaft end of the pump. Recommended inlet pressure should always be maintained at the inlet port at start up and during running. Pumps fitted with manual variable displacement controls should not be adjusted when the pressure, at either port, is greater than 100 bar. Magnetic drives can be installed to give high reliability with zero leakage. May require cooling flow...

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POWER You are at the centre of everything we do

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All Rotary Power catalogs and technical brochures

Archived catalogs

XJ05 catalogue
32 Pages