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SKU: AVG-ECV20/1200

AVG ECV20/1200 20mm 3/4" 1200kPa ECV Expansion Control Valve with Insulation Jacket

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    Click here to be notified by email when AVG ECV20/1200 20mm 3/4" 1200kPa ECV Expansion Control Valve with Insulation Jacket becomes available.


    The AVG ECV20/1200 20mm (3/4") 1200 kPa ECV Expansion Control Valve is Australian Watermark approved. The AVG ECV valve is cross compatible as a direct swap with most mainstream brands such as Reliance, Nefa and Tomson. An insulation jacket is included which allows for a professional look and minimal heat loss. 

    The AVG ECV valve works in conjunction with a matching PTR valve of the same color code (The ECV valve pressure rating is lower than the matching PTR valve pressure rating) to regulate the pressure in the hot water systems. The water in the water tank expands during heating cycle when heated and this expansion causes excessive pressures. The ECV valve can relieve this pressure via dripping water out in a controlled manner. 

    The AVG ECV valve fits perfectly with mainstream solar, electric and gas storage hot water heaters such as Rheem, Vulcan, Rinnal, Dux, Aquamax, Thermann, Apricus and Solahart.

    Please note this AVG ECV Valve in 20mm 3/4" thread size with a high 46kW dumping power rating is commonly used for commercial hot water services where the plumbing code requires this rating and size. This AVG ECV valve can work with all residential hot water services also. However, a smaller 15mm 1/2" ECV valve is usually used for residential applications to save the costs, where only a lower 20 kW rating is needed.


    Technical Details

    Manufacturer: Australian Valve Group (AVG)
    Model: ECV20/1200
    Maximum Pressure Rating: 1200 kPa
    Expansion Rating: 46 KW 
    Color Code: Red
    Matching PTR Rating: 1400 kPa
    Thread Size: 3/4" BSP (20mm) Male MI Thread 
    Physical Thread Measurement: 25.441mm internal/external thread diameter (Refer to the BSP sizing chart in the photo gallery)
    Material: DR Brass
    • Australian Watermark Approved (Australian Standard AS1357.1 under Licence No. 2639 and meets AS4020, Drinkable Water Standard) 
    • Suitable for installations in either horizontal or vertical tanks
    • This valve is designed to automatically reseat after each action
    • Insulation Jacket included
    • Manufactured under quality control assurance ISO 9001 and ISO 9002
    Intended Use: Electrical tanks, solar tanks, gas storage tanks and heat pumps
    Package Weight: 350g

    Package Contents

    • AVG ECV20/1200 1200kPa 20mm (3/4") ECV Expansion Control Valve
    • Insulation Jacket



    Dispatch next business day. Free local pick up is offered at prior arranged time.


    1 year replacement (parts only) warranty from purchase date is offered by All Plumbing Online.


    Return Policy

    30 days worry free return is offered for peace of mind. All returned items must NOT be installed or with any water running through them. The original packaging must be supplied in resealable conditions. 


    Contact Us

    All Plumbing Online is a local business based in Brisbane, run by an experienced engineer who works as a consultant to the plumbing industry at manufacturers' level. I used to operate my own plumbing company and can answer any of your plumbing related questions, such as fitments, sizing or just chatting in general for advice.


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