As people's living standards have improved, piped drinking water has emerged to ensure convenient and safe drinking water for everyone. It started in government agencies, school dormitories, subways, and shopping malls, and has now been widely used in many residential communities. Piped drinking water technology has become very mature.
When talking about piped drinking water systems, one cannot ignore the key component: the drinking water pressure reducing valve. Due to inconsistent water supply pressure under various operating conditions, it is necessary to install a drinking water pressure reducing valve in some situations where the pressure is too high. This is to protect downstream drinking water machines and other equipment, extend their service life, and also save water reasonably.
Requirements for direct drinking water pressure reducing valves:
Valves in piped drinking water systems should be made of hygienically qualified food-grade materials, with rust and corrosion resistance no less than that of S30408 stainless steel. Rubber parts, in particular, should be made of food-grade rubber. The performance requirements for pressure-reducing valves in piped drinking water systems are the same as those for cold water pressure-reducing valves.
Wuhan Yuanmingfeng Technology Co., Ltd. wholesales and retails direct drinking water pressure reducing valves. These valves offer high flow rates, reduce both dynamic and static pressure, provide stable outlet pressure, are compact in size, and can be installed horizontally or vertically. They are inexpensive and particularly suitable for bulk purchases in piped drinking water projects. Available in 304 and 316 stainless steel, and in various diameters from DN15 to DN50.
Yuanmingfeng direct drinking water pressure reducing valve installation requirements:
1. Before installing a direct drinking water pressure reducing valve, the air in the system pipeline should be purged;
2. The direct drinking water pressure reducing valve has a shut-off valve or ball valve before and after it to facilitate future maintenance and repair. It is best to have a pressure gauge after the pressure reducing valve to facilitate the observation of the pressure after the valve.
3. The installation of the direct drinking water pressure reducing valve must strictly follow the arrow direction on the valve body to ensure that it is consistent with the fluid flow direction. It can be installed horizontally or vertically.
4. In order to balance the return water pressure and save energy, the pressure reducing valve of the direct drinking water should not be installed on the supply and return water main and circulation branch pipes. The pressure reducing valve group can be set in the single valve pressure reducing mode. The water quality of the direct drinking water is relatively good, and a filter does not need to be installed before the pressure reducing valve of the direct drinking water.
5. Since piped drinking water is a supply system designed to improve living conditions, water outages and maintenance have a relatively small impact on daily life. To reduce equipment investment, a single-valve pressure-reducing method can be used.
6. For piped drinking water systems with only main pipe circulation, a layered branch pipe pressure reduction method should be adopted, and the zoning pressure reduction method can be adopted with reference to the zoning method of domestic drinking water supply systems.
7. If the piped drinking water system uses a circulating pump for zoned water supply to reduce pressure, a drinking water pressure reducing valve should be installed on the branch pipes with pressure exceeding 0.35MPa, and a layered branch pipe pressure reducing method should be adopted.
Yuanmingfeng direct drinking water pressure reducing valve outlet pressure setting:
1. Before setting the outlet pressure of the direct drinking water pressure reducing valve, the shut-off valve or ball valve downstream of the pressure reducing valve should be closed first;
2. Open the valve cap of the direct drinking water pressure reducing valve, and use a flathead screwdriver or Allen wrench to turn the pressure adjusting screw clockwise (looking from top to bottom). The outlet pressure will gradually increase. While turning, pay attention to the reading of the pressure gauge after the pressure reducing valve. Stop when the required pressure value is reached, and then put the pressure reducing valve cap back on.
3. If the initial pressure setting of the direct drinking water pressure reducing valve is greater than the required setting value, first use a flathead screwdriver or Allen wrench to turn the pressure adjusting screw of the pressure reducing valve counterclockwise (viewed from top to bottom) to the loosest position. At this time, the outlet pressure of the pressure reducing valve is the minimum. Then close the stop valve or ball valve after the pressure reducing valve, and then turn the pressure adjusting screw clockwise. The outlet pressure of the pressure reducing valve will gradually increase until the required pressure value is reached. Then reinstall the pressure reducing valve cap. The entire pressure setting is now complete.
Note: The outlet pressure of the pressure reducing valve is always set under static pressure. During the setting process, the pressure can only be adjusted from small to large.
