Thetys Pumps SRL
Tel: +40 744 595 445
E-mail: office@thetyspumps.com
Str. Teheran, nr. 11, sector 1,
011931 Bucuresti, Romania

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PRER and PRETR single-stage high-pressure pumps – Thetys Pumps
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PRER and PRETR single-stage high-pressure pumps

Thetys Pumps / Products  / Pumps  / Single stage centrifugal pumps  / API 610 and ISO 13709 pumps / PRER and PRETR single-stage high-pressure pumps

PRER and PRETR single-stage high-pressure pumps

Reinforced end suction pumps for high pressure

PRER and PRETR are reinforced OH2-type single-stage end suction process pumps, derivative from API610, using standard PRE hydraulics in a specially reinforced casing to suit high-pressure and high-temperature services such as boiler circulation.

Main benefits
  • High-pressure casing design with special reinforcement to suit challenging high-pressure services
  • Centerline mounted to allow thermal expansion
  • Closed impeller for clean fluids
  • Extra heavy-duty large diameter shaft for low shaft deflection
  • Taper roller bearing for very high suction pressures
  • Robust bearing housing with low-noise fan for high temperatures
Main applications

The PRER and PRETR are designed for high-pressure and high-temperature applications and are typically used in fossil fuel and renewable power plants. The design is ideal for:

  • Boiler circulation pump
  • Hot water circulation pump
  • All processes with high-pressure requirements
  • High-pressure slurry service in petrochemical industry (PRER-SF)
Features and benefits
1. Casing

Reinforced pressure casing

2. Nozzles

600# RF, 900# RF and 1500# RF flange ratings

3. Impeller

Enclosed impeller for high efficiency. Semi-open impeller with wear plate for slurry application

4. Shaft

Optimized shaft diameter

5. Bearing

Heavy-duty taper roller thrust bearing and roller radial bearing

6. Bearing housing
  • Carbon steel construction with cooling fins for improved heat dissipation
  • Low noise fan added for high ambient or high product temperatures, additional water-cooled option for special applications
  • Splash oil, ring oil, purge mist or pure mist lubrication options available to suit customer requirement
7. Seal Chamber

API 682 mechanical seal and API 610 seal chamber for improved seal environment and life

Operation data
50 HZ 60 HZ
Capacities up to 2’000 m3/h up to 8’800 USgpm
Heads up to 320 m up to 1’050 ft.
Pressure up to 200 bar up to 2’900 psi
Temperature up to 400°C up to 752°F
Performance range
PRE Performance Range 50 Hz
Performance range 50 HZ
PRE Performance Range 60 Hz
Performance range 60 HZ
* Performance range for PRE pumps. Smaller size may not be feasible in reinforced variant.
Materials
Pump part Material
Casing Carbon steel, chrome steel, austenitic steel, duplex steel
Impeller Carbon steel, chrome steel, austenitic steel, duplex steel
Shaft Chrome steel, austenitic steel, duplex steel
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