http://www.kaywinn.co.uk/twhc/wp-content/uploads/2019/07/PB160-80SMS.jpg
http://www.kaywinn.co.uk/twhc/wp-content/uploads/2019/07/PB80135DMS.jpg
  • Info
  • Specification
  • performance
  • Download

The P180 Janus axial piston pumps are designed for operation on tap water and are available in displacements of 135cc/rev, 180cc/rev & 225cc/rev.

The maximum operating pressure of the unit is 80 bar (1160 PSI) and is available in 3 port boosted design with a direction of rotation anticlockwise viewed on the pump shaft.

To avoid any contamination the Janus axial piston pumps are completely oil free and operate with water as their coolant / lubricant.

Part No Description Price RFQ
PB80-135DMS P180 Boosted Pump, 80 Bar Max Pressure, 135.0cc/rev, Duplex, Mechanical seal  POA
PB80-135HMS P180 Boosted Pump, 80 Bar Max Pressure, 135.0cc/rev, Hybrid, Mechanical seal  POA
PB80-180DMS P180 Boosted Pump, 80 Bar Max Pressure, 180cc/rev, Duplex, Mechanical seal  POA
PB80-180HMS P180 Boosted Pump, 80 Bar Max Pressure, 180cc/rev, Hybrid, Mechanical seal  POA
PB80-225DMS P180 Boosted Pump, 80 Bar Max Pressure, 225cc/rev, Duplex, Mechanical seal  POA
PB80-225HMS P180 Boosted Pump, 80 Bar Max Pressure, 225cc/rev, Hybrid, Mechanical seal  POA

Mechanical seals are advised for constant duty applications or duty above 2500 hours between service intervals.

Displacement (cc/rev) Max: 225
Min: 135
Max. RPM Boosted: * 2000
Max. Input Power (kW) 114
Max. Water Flow (m³/hr) 25.80
Max. Cont. Pressure (Barg) 80
Weight (kg) 82
Temperature (°C) Max: ** 50
Min: *** 2

* Pump speeds above Max. RPM are possible under higher boost conditions, consult TWHC for details.

** Higher temperature operation is possible, consult TWHC for details.

*** Consult TWHC for lower temperature conditions.

p180_de_input_power
p180_de_input_torque
p180_de_output_flow
p180_de_overall_eff

This download is a STEP File that can be loaded in to various 3d packages

This is the New Pumps Catalog, with all the details of our pumps in PDF format

This is a PDF format selector that shows our Pick A Pack range

  • Info
  • Specification
  • performance
  • Download

The P180 Janus axial piston pumps are designed for operation on tap water and are available in displacements of 135cc/rev, 180cc/rev & 225cc/rev.

The maximum operating pressure of the unit is 80 bar (1160 PSI) and is available in 3 port boosted design with a direction of rotation anticlockwise viewed on the pump shaft.

To avoid any contamination the Janus axial piston pumps are completely oil free and operate with water as their coolant / lubricant.

Part No Description Price RFQ
PB80-135DMS P180 Boosted Pump, 80 Bar Max Pressure, 135.0cc/rev, Duplex, Mechanical seal POA
PB80-135HMS P180 Boosted Pump, 80 Bar Max Pressure, 135.0cc/rev, Hybrid, Mechanical seal POA
PB80-180DMS P180 Boosted Pump, 80 Bar Max Pressure, 180cc/rev, Duplex, Mechanical seal POA
PB80-180HMS P180 Boosted Pump, 80 Bar Max Pressure, 180cc/rev, Hybrid, Mechanical seal POA
PB80-225DMS P180 Boosted Pump, 80 Bar Max Pressure, 225cc/rev, Duplex, Mechanical seal POA
PB80-225HMS P180 Boosted Pump, 80 Bar Max Pressure, 225cc/rev, Hybrid, Mechanical seal POA

Mechanical seals are advised for constant duty applications or duty above 2500 hours between service intervals.

Displacement (cc/rev) Max: 225
Min: 135
Max. RPM Boosted: * 2000
Max. Input Power (kW) 114
Max. Water Flow (m³/hr) 25.80
Max. Cont. Pressure (Barg) 80
Weight (kg) 82
Temperature (°C) Max: ** 50
Min: *** 2

* Pump speeds above Max. RPM are possible under higher boost conditions, consult TWHC for details.

** Higher temperature operation is possible, consult TWHC for details.

*** Consult TWHC for lower temperature conditions.

p180_de_input_power
p180_de_input_torque
p180_de_output_flow
p180_de_overall_eff

This download is a STEP File that can be loaded in to various 3d packages

This is the New Pumps Catalog, with all the details of our pumps in PDF format

This is a PDF format selector that shows our Pick A Pack range

Materials

Construction can be modified to suit use, environment and duty thereby, ultimately offering the most cost effective solution. The two basic forms are;

  1. Duplex Build, bar stock Duplex 2205 material (no cast components) used throughout all water contacting parts, giving the highest possible corrosion resistance for extreme salt concentrations.
  2. Hybrid Build, components are manufactured in 316 L stainless steel with strategic internal parts i.e. bearing surfaces, in bar stock Duplex 2205.

Minimal pulsation is experienced with these units due to the multiple piston design and the high operational speeds. Accurate flow metering is simply achieved with the control of the output shaft speed. For integral energy recovery version please see our Janus Power Centre catalogues or consult TWHC.

We would advise all desalination pumps are flushed on a routine basis. Any period of non operation (short or long) the system must run on permeate to ensure the sea water is flushed from the system. Even with the adoption of such high grade corrosion material, we would advise a weekly (if not sooner) fresh water flushing regime is undertaken especially if the system will be non-operational for any period.

Inlet Conditions 3 Port Design

The 3 port boosted pumps are designed for pressurised feed water supply at a minimum of 2.5 bar by either an external boost pump, very high pressure water main or a head /column of water in excess of 25m in height .The 3 port design separates the feed water from the pump internal leakage water which must be piped away to a low pressure sump or drain. The advantages of this design are;

  1. The pump drive must only produce the differential pressure i.e. for a system with 5 bar feed pressure, 60 bar system pressure the pump drive is only required to produce equivalent of 55 bar.
  2. As the feed pressure and internal leakage are separated, the mechanical shaft seal will not see the full feed pressure therefore reducing required maintenance as low casing  pressure will prolong the mechanical seals life and prevent low pressure cavitation issues; the minimum casing pressure and maximum inlet pressure is desired.
http://www.kaywinn.co.uk/twhc/wp-content/uploads/2019/07/desalination-diagram-1.jpg

A minimum positive inlet pressure of 2.5 bar above casing ‘T’ pressure is required at all times. The desalination pumps can rotate anti-clockwise viewed on pump shaft.

Motor Pump Assemblies

A standard range of bell housings and couplings are available for connecting the pumps to the B5 electric motor flange. See our Desalination Motor Pump Assembly datasheet for further information on potential combinations. The pumps are not capable of operating with induced axial or radial loads on the output shaft; always adopt the use of a 3 part gear style coupling where possible. If the drive shaft/spigot location is within 0.05mm concentricity, direct inline drive assemblies are permissible.

Temperature

The units will generate full performance from 2°C to 50°C. For operation above 50°C is possible however, the volumetric efficiency of the unit will be affected. Consult TWHC and specify the maximum operating temperature.

Filters

All incoming water to the pump must be pre-filtered to a nominal rating of 5µm with a filter element rating of β10 = 75 or better. Pump feed pressure must be a minimum of 2.5 bar measured after filtration. We advise a protection switch is utilised at the pump inlet to shut down the system  if feed pressure falls below this minimum.