Maintenance and management of the pressure reducing valve

Reserved to avoid dirt and debris into the pressure reducing valve and pressure relief protection system. New or renovation of decompression system pipe network, probably left over from the sand, hemp yarn and sundry. Before put into operation, should be water flushing commonly, meet the requirements of clean, after finally fitted with a pressure reducing valve and the filter core, so as to avoid debris flows into the pressure reducing valve, stop valve core card phenomenon.
After system into the job, ensure the relief system of flow unimpeded or not, and is close to the filter Settings on the system of flow capacity, such as filter by sundry serious adsorption, it will affect the work of pressure reducing valve, this required to regularly check of filters, timely removal of filth. Practice shows that the work must be in 2 to 3 months at a time, some adjustable spring type, diaphragm pressure reducing valve, the main valve and pilot valve itself set filters, also need to unpick and wash filter on a regular basis.
Most of the living water supply control valve and pressure relief protection for the high-rise building, is a vertical partition set water, generally in each water supply division manager. Considering the many users of water and reliable security, design of pressure reducing valve shall be installed two sets of parallel .
Relief channels on both sides with gate valve, butterfly valve, opening and closing any relief channel, for the parallel of two sets of pressure reducing valve channel can work normal, regular exchange in turn once a month, on hold too long relief channel water scale, decompression valve core components cause failure.
Should be promptly eliminate product gas in the pipeline. When air enters the reduced pressure within the network or networks change with pressure in gas separation from the water, the water pressure of users in the area of unstable; In the most unfavorable point water unit of water supply pressure change is rapid, sometimes present false peak pressure, slab gate valve, and pipe network will be accompanied by sound. Produce this kind of phenomenon, affects the gas water heater, electric water heater, such as stability, serious will be destroyed.
For all kinds of toilet appliance inlet connection pipe damage is very big also, especially compound are connecting hose, its strength is poorer, so tube events occurred frequently; Appeared some meter can't accurate calculation, users do not water, water meter will also be constantly rotating.
To put an end to this type of accident, shall check the filling height of roof water tank water main life whether meet, if not satisfied will produce at the tank outlet water, breathing air. Ruled out the fault level controller can adjust the tank at the lowest water level elevation, experience shows that generally the lowest water level from the outlet should not be less than 0.3 m.
Also can open the Settings in the division, decompression system repeatedly put cock on either side of the pressure gauge, has slowly into the air in the pipe network eduction. Endings such as after the measures, in the division manager under some water also appear the above phenomenon, can be in these areas provide automatic exhaust device.
Patrol, strengthen the management of the guarantee system of pressure reducing valve to observe dynamic pressure reducing valve itself work. Valve before and after the valve pressure numerical value close to that existing fault reducing valve itself,API 6A gate valve.
The piston type pressure reducing valve valve core and valve body plane between the sealing rubber parts damage; Adjustable diaphragm type pressure reducing valve damage cracks have appeared on the main valve diaphragm and o-rings, pilot valve and connecting pipe blockage, pressure reducing valve and pressure relief effect weakened or failure. The great harm to partition network, especially many devices may be by super pressure tube with water, must be timely repair.