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Solar Commercial Pump Station- PAW SOLEX DWHX


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Commercial Solar Pump Station




PAW FlowCon FA pump station- Residental


PAW  SOLEX DWHX - Integrated pump station with two Wilo Star S21 3-speed solar pump and large 30 Plate Heat Exchanger

Ideal for Commercial System's and Hydronic heating

Download Product Specification PDF for SOLEX

Complete solar control system including solar working station with drain fill valves and shut off isolation valves. Patented air scope, flow meter, pressure release valve, pressure gauge, temperature gauge. Wilo Star S21 3-speed high volume pump included. Qualitly brass components are high temperature rated. Note: Requires RESOL controller - comes with 3/4' compression connections or FPT.

The Solex DWHX is a preinstalled and leak-tested unit with an integrated large heat exchanger for transferring heat from the collector to the storage tank. Ideal for up to 15 collectors.

Double Wall Heat Exchanger  The large 30 Plate heat exchanger can be used in commercial potable water applications as it meets and exceed all standards for potable water.  The double walled heat exchanger provides visible leak detection against potential contamination.

Connections DN20 (3/4" female), Flow range 1-13 L/min (0.3 - 3.5 US gal/min)

USE in closed loop design only. The circulation unit is used on the primary circuit of solar heating system's to control the temperature in the hot water storage. The pump inside the unit is activated by the signal from the differential temperature regulator. In addition, this unit contains the functional and safety devices for optimum circuit control.

The compact and completely preassembled solar water heating system Solex for high flow system's is completely insulated. It is equipped with a generously dimension stainless steel flat plate heat exchanger, prewired and preset controller. All those advantages allow for a simple and quick installation as well as secure commissioning. Secondary loop supply

PAW FlowCon FA pump station- Residental




  • All connections ¾" female
  • With pre-assembled steel wall bracket can be mounted easily onto the wall
  • Fully assembled with flat sealing union connections
  • Full port ball valves
  • Flow check valves inside the solar loop and inside the secondary loop, manual opener, inside the solar loop with 400 mm WC, especially for solar systems, secondary with 200 mm WC, prevent any gravity circulations
  • Both loops with large ball valve handles, easy handling, visible closing position, with integrated full metal thermometer 0-160 °C / 32-320 °F, can be pulled off, with thermowell integrated inside the ball valve
  • With solar circulation pumps by Wilo, three speed pre-assembled; aligned to the performance of the water heating system, pumps can be completely isolatad- no draining necessary during pump service
  • Primary and secondary loop with flowmeter for easy adjustment of the flow rate
  • Integrated flushing and filling valves three drain valves permit filling and flushing the primary circuit as well as only the heat exchanger. On the secondary side automatic air vent at the highest point of the heat exchanger.

Return Policy

We want you to be 100% satisfied with your purchase, if you are not, ship it back to us in the original packaging condition and we will refund your purchase less a 10% restocking fee, provided the equipment is received in good condition. Refund offer valid for 30 days from receipt of product.


We feel that being honest is a much better policy to win your trust rather than trying to lure you with nearly impossible statements such as lifetime warranty. Nothing lasts forever! Our warranty policy is simple; we offer a 3 year warranty on everything we sell and 10 years on our collectors. With this warranty you will get NO hassle next business day replacement (if shipping service and inventory permits). However, as a valued customer you will get technical support through the lifetime ownership of your product. Our Collector do carry longer warranties 10 years from the manufacture. The warranty cover failures that occur during normal operational conditions or manufactures defects. It does not cover failure due to inappropriate operation such as freezing or over heat. Damage caused by vandalism, storms, floods etc. Your household insurance should be modified to cover the system from such situations.

We accept PayPal and Credit card (Visa or Mastercard). If you are ordering multiple units and part, please call us to see if we can save you shipping cost for multiple item orders.


For complete solar kits please allow 2-3 weeks delivery. These kits are shipped via our preferred freight forwarder company and where possible we will schedule residential tailgate delivery (curbside). Heaters and accessories are usually in stock unless indicated otherwise. We do have expedited shipping services available for an additional fee. Please call us if you need a rush order. Once your order has been shipped you will be contacted via email and a tracking number will be provided.

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  • Model: N-237
  • Shipping Weight: 20lbs
  • 0 Units in Stock
  • Manufactured by: PAW

This product was added to our catalog on Wednesday 03 July, 2013.

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