Wattsdcva

A faulty valve can lead to dangerous pressure buildup in the tank. If you notice any signs of leaks or if the valve fails to open when the pressure inside the tank gets too high, it is important to contact a licensed plumber or hot water heater technician to repair or replace the valve.

WattsBackflow Preventer

We are qualified to undertake any plumbing and electrical work required to ensure your hot water heater is repaired quickly and within budget. Plumbers who do not specialise in the installation of hot water heaters may need to outsource the electrical work required to another tradesperson, thereby holding up your hot water system repair or installation, adding extra expense due to additional call-out fees charged by employing two tradespeople.

Double check valve vsbackflow preventer

If you’re not confident to do this yourself, we recommend you contact our friendly team to organise a service call-out. We recommend all hot water systems be serviced every 5 years. If you supply our hot water service technicians with the make and model of your water heater, we will be able to determine whether a service call is required.

The pressure relief valve works by opening and releasing water from the tank when the pressure inside the tank exceeds a certain level.  This level is usually around 150psi however can vary depending upon the model and age of the hot water heater. If the pressure inside the hot water heater gets too high, the pressure relief valve opens, allowing water to flow out of the pipe and away from the tank.  The pressure inside the tank is relieved.

Rheem | Vulcan |  Bosch | Conergy | Aquamax | Solahart |  Everhot | Rinnai | Edwards Solar |  Apricus | Hocking / Wilson | Stiebel Eltron

HOW URGENT IS YOUR ENQUIRY? * Urgent - contact within one hour.Same day callback required.No urgency, within 48 hours is OK.

Double Check Valve Assembly diagram

For fast hot water heater assistance including repairs, replacement and installation service, call now to speak directly with a hot water specialist. Ask us for advice how you can reduce your hot water bills and your carbon footprint.

Dcva backflow preventerinstallation

Additionally, most manufacturers won’t cover the terms of your hot water system warranty if it isn’t installed by a licensed hot water technician or a qualified plumber. Hot water tanks are an expensive appliance so why would you risk voiding your warranty by installing it yourself or employing the services of someone who isn’t licensed?

A dual check backflow preventer is similar to a double check valve in operation. It has two independent spring-loaded check valves. However, dual check valves usually do not include shutoff valves, may or may not be equipped with test cocks or ports, and is generally less reliable than a double check valve.[4]

RPBackflow Preventer

It is important that homeowners and businesses regularly inspect the pressure relief valve on their hot water heater to ensure it is functioning properly. The pressure relief valve is usually located on the top or side of the hot water system and is connected to a pipe.

It consists of two check valves assembled in series.[2] This employs two operating principles: firstly one check valve will still act, even if the other is jammed wide open. Secondly the closure of one valve reduces the pressure differential across the other, allowing a more reliable seal and avoiding even minor leakage.

DCVAvs DCDA

To organise a service for your hot water system, contact our friendly team. We offer fast service to all Sydney suburbs. Once onsite, we can check the pressure relief valve and other important parts of your hot water system are operating as they should.  Our trucks carry thousands of replacement parts and can fix problems on the spot.

Complete the form below and one of our hot water specialists will call you back ASAP. If your enquiry is urgent, please call us directly on 0410 693 532.

Have you been told by a plumber or hot water company that your hot water system needs to be replaced – at a considerable cost? If so, contact the hot water specialists here at Cheapa Hot Water for advice. Over the years we have saved countless customers thousands of dollars by undertaking cost-effective repairs to faulty hot water heaters when they had been told they couldn’t be fixed.  Don’t believe us? We can put you in touch with these customers for verification.  A phone call to Cheapa Hot Water may save you thousands! Call 0410 693 532 to speak to a hot water specialist now.

Did you know that often the repair and installation of a hot water system requires the expertise and qualifications of both a licensed plumber and a licensed electrician?

A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination.[1] It is different from the two-way check valves (sometimes erroneously referred to as double check valves) used in air brake systems on heavy trucks which select from the highest pressure source.

Dcva backflow preventerreplacement

Hot water is our business – it’s not a sideline. Each year we repair and install hundreds of hot water systems in homes and businesses across Sydney.

Hot Water Plumber Northern Beaches Hot water heater repairs. Common water heater problems. Installation of new gas hot water (instant). Switch from electric to gas. A unique reason why you may have lukewarm water or no hot water Why is my hot water inconsistent? Reasons for unreliable hot water supply.

The double check valve assembly is suitable for prevention of back pressure and back siphonage, but is not suitable for high hazard applications. It is commonly used on lawn irrigation, fire sprinkler[2] and combi-boiler systems.[3] If the hazard is higher, even a relatively low hazard such as using antifreeze in the fire sprinkler system, then a more reliable check valve such as a reduced pressure zone device may be mandated.

Small valves may be so compact as to be barely noticeable particularly when they are integrated into the bodies of existing taps (faucets). Larger check valves may be installed with ball valves at the ends, for isolation and testing. Often, test cocks (very small ball valves) are in place to attach test equipment for evaluating whether the double check assembly is still functional.

When the pressure relief valve fails or becomes faulty, it won’t open, causing the pressure inside the hot water heater to get too high. This can be very dangerous.