Register now to lodge backflow test reports All we need is your email address. Once you're registered, you'll also be able to access the backflow prevention portal via Sydney Water Tap in®. Please note: The backflow prevention portal works best in Chrome or Edge. Safari is not supported.

... water systems for industrial applications. The Group also services and maintains product water, wastewater and vacuum systems. Location. 1 Commonwealth Lane.

Only licensed plumbers with backflow prevention accreditation issued by a registered training organisation (backflow plumbers) can inspect, commission and test medium and high hazard backflow devices. Once backflow devices have been installed, only backflow plumbers can test them. Once a test has been done, backflow plumbers must submit the test report using our online lodgement system.

2020228 — A hot-water recirculation system delivers hot water to a faucet, shower or appliance in seconds, eliminating the usual water-wasting wait.

Pressure reducingvalve Manual

2015126 — When I set a shutter speed and aperture in manual mode after measuring the actual ambient light with a separate light meter, the exposure ...

We now audit lodgements. As part of our audit, we may ask you to provide 2 photographs for any backflow containment device test you've registered with us. The photos need to show:

Sydney Water respectfully acknowledges the Traditional Custodians of the land and waters on which we work, live and learn. We pay respect to Elders past and present.

Hattersley manufacture a range of pressure reducing valves. Pressue Reducing Valves (PRVs) ensure that an appropriate and comfortable water usage pressure ...

Find many great new & used options and get the best deals for Watts Series 909 BFP-RK 4-inch RPZ Backflow Preventer Service Kit, pn 0881472 at the best ...

prv意思

■Operating principle Changes in downstream pressure are sensed by the pilot valve mechanism (bellows connected with a pilot valve unit) through a signal line D, which connects the pilot valve regulator with the secondary pressure side. Movement of the bellows will open or close the pilot valve, regulating the amount of steam influencing the movement of the piston, which will close or open the main valve, thus keeping downstream pressure on a stable level. It can be used in a wide range of applications such as food industry, dyeing industry, cleaning industry, apparel industry, heating equipment and air conditioning equipment. ●Energy saving, the more you use it, the more it makes a difference. micro bellows and a high-precision pilot valve ensures control. (Maximum primary pressure 1.6MPa, maximum pressure reduction ratio 20: 1) ●Excellent durability Durability is outstanding due to the unique stainless steel micro bellows and overstress prevention mechanism.

Reliance 312Pressure ReducingValve

Use our online lodgement system to submit your backflow test report. To access the system for the first time, you'll need to register for backflow prevention using your personal email address. If you can't access the system, email us at backflow@sydneywater.com.au.

We no longer accept reports for zone and individual backflow devices. Contact NSW Fair Trading if you have questions about these types of devices.

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Caleffipressure reducingvalve

■Operating principle This type is a pressure reducing valve with a downstream pressure sensing line (pulse line) designed for use of steam. The valve provides a precise downstream pressure even at changing inlet pressures. Due to carefully selected springs, a wide range of pressure applications is available. The valve is very well suited to intermittent or fluctuating loads at the secondary side. It closes securely when the load on the secondary side will be zero. ● It can be delivered with ductile cast iron, cast steel or stainless steel housings. ● All important internal parts are manufactured in stainless steel. As option the valves can be equipped with a pressure gauge on the valve body.

PRV valve

Professional water hammer arrestors, designed to reduce or eliminate the noise, vibration and damage caused by water hammer. Buy in 2"-8" & 1/2"-12" sizes.

Pressure reducing valves (PRV) are designed for regulating the downstream pressure and maintaining it within certain acceptable limits. Ideally, a PRV should provide a constant downstream pressure while delivering the required flow, i.e. The PRV automatically adjusts the steam flow to meet the downstream system demand. Depending on the model, MIYAWAKI’s pressure reducing valves are designed for steam, air, gases and liquids.

A pressure reducing valve is exactly what it sounds like, a valve that reduces the water pressure in your home.

Are you on our list of backflow plumbers? If you're accredited and want to be on our list of backflow plumbers, email a copy of your Certificate of Attainment to backflow@sydneywater.com.au or call us on 13 20 92 8am–5:30pm Monday to Friday (except public holidays). To become an accredited backflow plumber, visit TAFE NSW and search for 'plumbing' or 'backflow'.

Waterpressureregulator

Licensed plumbers must assess each site to work out its specific backflow containment needs. If you've determined the site's hazard rating as low, our 20 mm and 25 mm water meters already have a simple backflow prevention device in them. If the property's water meter is larger than 25 mm, you'll need a separate backflow device. Find out more about meters and metered standpipes. You must advise the property owner of the backflow requirements and install a backflow prevention device appropriate to the property's hazard rating. You must also tell the owner if the device needs to be tested each year.

■Operating principle The valve provides a constant downstream pressure at a stable given inlet pressure and constant running flowrates. Changes in the upstream pressure and fluctuating consumption on the secondary side will result in variations in downstream pressure. The valve is not designed for dead-end services. Due to carefully selected springs a wide range of pressure applications is available. The model REA20 is a direct acting pressure reducing valve designed for use of compressible media, such as air and various gases and for incompressible media such as water, oil and others. The pressure reducing valve can be delivered with ductile cast iron, cast steel or stainless steel housings. ●All important internal parts are manufactured in stainless steel. ●Soft sealing or metal sealing Depending on the medium, the valve can be equipped with soft sealing or metal sealing valves/seats. As option, the valves can be equipped with a pressure gauge on the valve body.

Licensed plumbers and accredited backflow plumbers must follow a strict procedure to help our customers fulfil their backflow prevention obligations. We have a guide that provides information for backflow prevention (1MB) containment and a collection of frequently used Backflow prevention terms (66KB).

Pressure reducingvalve UK

■Operating principle Due to the use of a downstream pressure sensing line (pulse line) the valve provides a constant accurate downstream pressure. Carefully selected springs secure a wide range of downstream pressure applications. In case of zero consumption on the secondary side the valve closes reliably. This type is designed for use of compressible media, such as air and various gases and for incompressible media such as water, oil and others. The pressure reducing valve can be delivered with ductile cast iron, cast steel or stainless steel housings. ●All important internal parts are manufactured in stainless steel. ●The valve is designed for dead-end services. ●Soft sealing or metal sealing valves/seats Depending on the medium, the valve can be equipped with soft sealing or metal sealing valves/seats. As option, the valves can be equipped with pressure gauges.

Your first test report We won't audit the first test report you upload using the new backflow prevention application. However, we will audit second and future test reports.

Domestic waterpressure reducingvalve

All fire services, fire hydrant and sprinkler services require the installation of a Double Check Detector Assembly (DCDA). The materials used on the upstream side of the DCDA and including the outlet control valve must be WaterMark approved for plumbing and drainage installations. There can be no galvanised pipe and fittings on the upstream/inlet side of the containment device.

Submitting test reports How to submit an annual test report for an existing device on a Sydney Water meter How to submit an initial test report for a new device on a fire service How to submit a test report for a replacement device on a boundary connection How to submit a defect rectification report

You don't need to attach photographs to your test reports when you upload them using the new backflow prevention application. However, your uploaded test reports may be subject to an audit. If we audit your lodgement, we'll send you an email asking you to email the photographic evidence to us as proof.

Dielectric unions provide insulation between incompatible materials for joining them safely. They avoid electrolysis, which leads to corrosion or pipe failure.

Sydney Water respectfully acknowledges the Traditional Custodians of the land and waters on which we work, live and learn. We pay respect to Elders past and present.

Registration and account management How to register for your backflow prevention web lodgement account How to manage your web lodgement account details

■Operating principle Changes in downstream pressure are sensed by the bellows, which expands or contracts depending on the pressure change. The movement of the bellows will be directly transferred to the spring, which will open or close the main valve, thus keeping the downstream pressure at a certain level. Suitable for small processes such as sewing, cleaning, food industry, dyeing industry, apparel industry, heating equipment, sterilizer, rubber vulcanizer, medical equipment, bio-related equipment. ● Compact and lightweight design allows installation in tight spaces. (Model RE2 is the world's smallest steam pressure reducing valve)

We highly suggest testing your thermostatic mixing valve regularly. This article will tell you everything you need about thermostatic mixing valve testing.

All connections to our water mains must have suitable backflow containment as set out in our policy, Your responsibilities when connected to our services (358KB).