AVG Pressure & Temperature Relief Valve 15mm 850KPA OL Long Probe

(2 reviews) Write a Review
SKU:
PTR15-850OLAV
Weight:
1.00 KGS
Shipping:
Free Shipping
  • AVG PRESSURE & TEMP RELIEF VALVE 15mm 850KPA OL Long Probe
  • AVG PRESSURE & TEMP RELIEF VALVE 15mm 850KPA OL Long Probe - Features
  • AVG PRESSURE & TEMP RELIEF VALVE 15mm 850KPA OL Long Probe - Selection
  • AVG Australian Valve Group
  • AVG PRESSURE & TEMP RELIEF VALVE 15mm 850KPA OL Long Probe - Rating
$110.00

Description

AVG PRESSURE & TEMP RELIEF VALVE 15mm 850KPA OL Long Probe

PTR Valve Function

The Pressure and Temperature Relief valve (PTR) is designed to relieve the increase in pressure caused by water expansion during the normal heating cycle. The valve will then relieve the increase in pressure by releasing drips of hot water to the drain line. Should the electrical temperature cut-out device cease to operate correctly, the water will overheat.

The temperature probe will then open the PTR valve and discharge hot water to the drain line. It is recommended that an ECV be fitted to the cold water supply line. This will relieve cold water, not hot water, during the heating cycle, saving energy and increasing the life of the PTR. Some local governments make it mandatory to install an ECV in the cold water line. PTR and ECV valves are safety valves and should be replaced every 4 years.

Inlet Pressure Control

High pressure may cause excessive discharge and possible premature failure of the operating relief valve (see table). The maximum water pressure usually occurs during the night, at the time of lowest water usage.

In any mains pressure water heater installation if the water pressure exceeds 80% of the nominal set pressure of the operating relief valve, a Pressure Limiting Valve must be fitted to the cold inlet. If a cold water expansion control valve is fitted it will have a lower set pressure than the PTR valve and therefore will be the main operating relief valve.

The valve rating plates are colour coded to make selecting the correct valve easy. Simply match the PTR valve to an ECV with a rating plate of the same colour.

View AllClose

2 Reviews

  • 3
    AVG PTR Valve

    Posted by Tom Prentice on 4th Jan 2019

    I cant comment on it at this stage the previous valve only lasted 17 months it was installed in a new Rinnai solar sysrem I am very happy with you're prompt service I was unable to purchase one in my area

  • 5
    Excellent

    Posted by Unknown on 24th Feb 2015

    The avg pressure valve and service from plumb online is top class the product is outstanding quality

View AllClose