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Solar pump groups

Double solar station with WITA OEM4 15-60 PWM2 pump

A double solar pump group with the WITA OEM4 15-60 PWM2 circulating pump, designed for systems with flat plate and vacuum solar collectors. The two lines make it possible to control the temperature of the solar system heating medium on both the supply and the return.

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Double solar station with WITA OEM4 15-60 PWM2 pump
Double solar station with WITA OEM4 15-60 PWM2 pump – inside view
WITA OEM4 15-60 PWM2
Pump type
1–6 / 2–14 l/min
Flow range
6 bar
Max. pressure
430 × 300 × 150 mm
Dimensions W × H × D

Key features

  • 6 bar pressure relief valve
  • Pressure gauge 0–10 bar
  • Thermometers 0–120 °C
  • Air separator
  • EPP insulation

Design and equipment

  1. Pump and flow

    WITA OEM4 15-60 PWM2 circulating pump with a 130 mm installation length. The rotameter with solar system filling and emptying valves has two measuring ranges – 1–6 and 2–14 l/min.

  2. Valves and safety

    Ball valves with 0–120 °C thermometers on the high and on the low parameter. A 6 bar pressure relief valve and a group with a 0–10 bar pressure gauge and an expansion vessel port.

  3. Venting and insulation

    Air separator with an air vent. Body of brass and powder-coated steel, EPP insulation, EPDM sealing components. Medium – solar fluid only, a non-toxic glycol-water mixture with corrosion inhibitors.

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