Delta reserves the right (1) to make changes in specifications and materials ... • ASSE 1016 allows a temperature spike greater than. ±3.6˚F in first 5 ...

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Designed for lavatory applications where the temperature of hot water must be controlled for safe, economic use. An advanced thermal actuator quickly senses and compensates for outlet temperature fluctuations induced by water temperature and pressure changes in the supply line. Rugged construction features solid lead-free brass body and corrosion-resistant internal components ensure years of dependable trouble-free service. Temperature adjustment stem is simple to adjust and has a locking nut to prevent tampering.

An optional PTR insulation jacket is available which can reduce the heat loss and improve the hot water services' overall thermal efficiency.

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The APO PTR valve features the same threads, fitments and similar physical sizes with many other PTR valve manufacturer brands such as Reliance' HT55, AVG, Tomson, Nefa and Reflex. This makes the APO PTR valve a perfect direct replacement to an existing valve in an old hot water heater.

The Pressure and Temperature Relief Valve (PTR) is designed to relieve the increase in pressure caused by water expansion during the normal heating cycle.

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WATTS® Water Hammer Arrester, Series: LF150A, 3/4 in Nominal, Hose Threaded, 150 psi, 180 deg F, Stainless Steel Body, 3-13/32 in W x 4-5/16 in H, Domestic.

The PTR pressure temperature relief valve regulates the pressure caused by water volume expansions during normal heating cycles in a hot water service. The PTR valve relieves this increase in pressure by a controlled water dripping into a drain line typically of 2 to 5 litres per day depending on the hot water usage.

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2023221 — Those quarter turn valves should hold up under thousands of on/off cycles but perhaps you might be stressing the hoses with the constant pressure cycling.

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The APO PTR15/850 15mm (1/2") 850kPa PTR Pressure and Temperature Relief Valve, also known as TPR valve is used to regulate the water pressure inside hot water services, including heat pumps, electric, gas storage and solar water heaters across all mainstream brands in Australia such as Rheem, Vulcan, Rinnal, Dux, Aquamax, Thermann, Apricus and Solahart.

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A functioning PTR valve is a requirement by law in Australia for safety as per explained above. A typical sign for a faulty PTR valve is when there is a large amount of water leakage in a stream, rather than a controlled dripping. The worn out or leaking PTR valve must be replaced immediately.

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The PTR pressure temperature relief valve also acts as a mechanical protection device for the hot water services. In rare occasions of a faulty thermostat or heating element, the hot water service can overheat, building a dangerously high pressure and temperature inside. When this pressure or temperature exceeds the PTR valve's rating, it will dump hundreds of litres of water all at once as an emergency pressure relief. Usually a large puddle of water will be observed around the hot water services on the ground during this emergency water dumping. The PTR valve usually has a KW rating, which describes this emergency water dumping ability in terms the heat dissipating power. A larger PTR valve will usually have a larger KW rating and this KW rating is specified by local plumbing rules, especially in large commercial hot water systems.