Ductile Iron Material Flange Connection Water Conservancy Valve

Product introduction

The valve body adopts a full channel streamlined design, fluid resistance is small, large flow, good sealing effect, due to the assembly of the conduit control system on the main valve, the use of floating ball with the liquid level change linkage copper pilot valve open and close, and then control the main valve water supply and water cut, can automatically control the water tower or pool of liquid level; The valve is quick to open and slow to close, does not produce water hammer, flexible and durable, liquid level control accuracy is high, water level is not disturbed by water pressure. The PRODUCT IS SUITABLE FOR INDUSTRIAL AND mining enterprises, civil buildings in the pool, water tower automatic water supply system, can also be used in atmospheric pressure boiler circulation water supply system.

Connection size

The working principle of

When pipe from the inlet water supply valve, due to the needle valve, ball valve, 17, 11 and 9 floating ball valve is normally open, so through 17 of water into the bonnet type needle valve after the control room, and after 11 and copper ball valve floating ball valve flow into the water tank, cover can't pressure control room, into the lower part of the main valve inlet pressure will be 5 lift the disc, open the main valve disc sealing to supply water to the water tank; When the water level in the water tank gradually rises, the floating ball gradually close the copper float ball valve 9, the water in the valve cover control room gradually increases the pressure to press the valve disc 5 until it is closed, then it plays the role of automatic remote control to close the valve

Main technical performance

Installation and Maintenance

1. The main valve is installed on the inlet pipe of the pool or high water tower. The installation method is horizontally installed on the pipeline with the valve cover facing up.

2. Before installation, remove debris from the pipe and flush the pipe thoroughly. When installing, pay attention to the arrow indicating water flow outside the main valve body and follow the direction of installation.

3. A gate valve and a filter should be installed before the main valve, and a gate valve should be installed after the main valve for easy maintenance.

4. When testing the water, first open the ball valve on the main cover, and then slowly open the gate valve before the main valve. At this time, the main valve should normally supply water to the water tank, close the ball valve, and the main valve will be closed. If it cannot be closed, it indicates that there are stolen goods under the main valve disc. Try again after removing the stolen goods. When the main valve supplies water, the floating ball pilot valve is also flowing water. If the floating ball is held up by hand, the floating ball pilot valve is closed, and the main valve is closed, proving that the floating ball pilot valve is in good operation

Yuanda Valve Group Co., Ltd., founded in 1994, is headquartered in Yincun, Longyao, Hebei, China, the hinterland of Bohai Economic Rim surrounding Beijing and Tianjin. With a registered capital of RMB 200 million, Yuanda currently has 8 subsidiaries, of which 6 are in China and 2 overseas. Among them, the core company, which covers an area of 540,000m2 and has more than 3500 employees, is the largest high,midium and low-pressure valve manufacturing base specializing in valve development, manufacturing, and sales in China.

Yuanda has obtained DNV·GL, ISO9001: 2015、ISO14001:2015、OHSAS18001:2007, API6D（6D-0759）, CE, KS, and EAC certifications. Its""trademark is evaluated as Famous Trademark of China and Famous Brand in Hebei Province, and the product series produced under"" is a trademark registered in Korea and products produced under this trademark enjoy a good reputation in both international and domestic markets. Yuanda has been named “Credit Management AA-Rating Enterprise” by the General Administration of Quality Supervision, Inspection and Quarantine and granted the title of “China Quality Trustworthy Enterprise” by China Entry and Exit Inspection and Quarantine Association. It is also a holder of Manufacture License of Special Equipment Level A and Casting Certificates Grades B, B1, and B2, and a member of China Valve Association council, a corporate member of China Foundry Association, and a provincial enterprise technology center in Hebei. Yuanda has been granted the power to carry out import and export operations on its own and is an approved supplier of PetroChina (CNPC) and Sinopec, Guodian, Huaneng, Huadian, Datang and China Power, and China Aluminum, CCESCC, Shougang, Wuhan Iron and Steel Company, and Hebei Iron and Steel Company.

Yuanda manufactures to standards including GB/JB(china), ANSI, API, AWWA, DIN, BS, JIS, EAC, NF and so on, and uses HT200, HT250, QT400, QT450, WCA, WCB, WCC, CF3, CF8, CF3M, CF8M, 1Cr5Mo, LCB, among others, to produce a great variety of valves including gate valves, globe valves, ball valves, butterfly valves, check valves, diaphragm valves, pressure-relief valves, plug valves, and traps, which are available in 12 main categories, 200 series and 4000 specs, totaling 120,000 tons a year. These products are widely used in all civil sectors covering petroleum, petrochemical, chemical, power generation, metallurgy, water system, pharmaceuticals, urban construction, and water supply and drainage.