Slow Closing Type Check Valve 300X (1/2"-32")

The 300X delay check valve is a smart valve that is installed in the water pump outlet of the high rise building water supply system and other water supply system, and prevents the flow of media, water hammer and water hammer. The valve has three functions of electric valve, reverse stop valve and water hammer eliminator, which can effectively improve the safety and reliability of water supply system.
The 300X delay check valve is a smart valve that is installed in the water pump outlet of the high-rise building water supply system and other water supply system, preventing the flow of the medium, water hammer and water hammer. The valve has three functions of electric valve, reverse stop valve and water hammer eliminator, which can effectively improve the safety and reliability of water supply system. The technology principle of the water hammer will be integrated slowly, fast and closed, and the water hammer will not be produced by the pump water hammer and the stop pump. All you need to do is operate the pump motor. The valve can be operated automatically according to the operation of the water pump, the flow is large and the pressure loss is small. Suitable for a valve under 600 caliber.
Water control valves are water pressure control valves, hydraulic control valves consist of a main valve and its attached catheters, guide valves, needle valves, ball valves and pressure gauges. According to the use purpose, function and the location of different can turn into the remote control float ball valve, pressure relief valve, relief valve, flow control valve, pressure relief valve, hydraulic power control valve, water pump control valve, etc.

Valve design and selection:
(1) the hydraulic control valves applied in the engineering type are inspected by the manufacturer and are fully identified and the technical data meets the requirements.
(2) select the valve type according to the function requirement, and then determine the valve body and the sealing part of the valve according to the pipe conveying medium, temperature, building standard and the requirement of the owner. The commonly used valve body material has cast iron, copper, copper, plastic and so on. The commonly used sealing and lining materials have copper alloy, plastic, steel, hard alloy, rubber and so on. The valve body material should match the pipe material.
(3) the nominal pressure of the valve is 0.6, 1.0, 1.6, 2.5 and 4.0 MPa, and the medium of the pipeline shall be less than the nominal pressure value of the valve.
(4) the installation of hydraulic control valves in the project shall have sufficient space for management, operation, installation and maintenance, and shall conform to the requirements of the pipeline for valves.
(5) when the pipe is connected with flange, the hydraulic control valve shall be used for flange connection; When the pipe is connected by groove, the hydraulic control valve shall be used in groove connection.
(6) the water control valve shall be installed in the tube road with one-way flow of the medium.
(7) the direction of the arrow on the main body of the water control valve must be in line with the flow of the piping system.
(8) there should be no gas blocking and gas resistance in the pipe section of the hydraulic control valve. Automatic exhaust valve should be installed at the top of the pipe network.
(9) when valve level is installed, the valve cover and stem should be up. When installing vertically, the bonnet and stem should be outward.
(10) test of strength and tightness should be done before valve installation.
(11) the strength and tightness of the valve shall conform to the following provisions.
A. The strength test pressure of valve is 1.5 times of nominal pressure.
B. The test pressure of the valve is 1.5 times of the nominal pressure.
C. The test pressure shall remain unchanged for the duration of the test, and the shell packing and sealing surface of the disc shall not leak.


Our company introduction:
Shanghai Qingjiang Valve Manufacturing Co, . Ltd. Is located in Shanghai Fengxian Industrial Zone, is a commitment to scientific research, production, sales of professional valve manufacturer. 
Company to an international metropolis -- Shanghai as the basis, make full use of regional advantages and industry, is committed to the introduction of international advanced management experience and technological innovation, and actively promote the enterprise comprehensive strength, and expand market share, formed with the gate valve, globe valve, ball valve, check valve, butterfly valve, hydraulic control valve, balance valve, relief valve, regulating valve and so on more than 60 series nearly 1000 varieties of products structure. Products nominal diameter is 1/4"-80" (DN6-2600mm) pressure 0.1MPa - 32.0MPa, temperature -196-595º C. Valve of the main materials are cast iron, ductile iron, carbon steel, alloy steel, stainless steel, copper and other materials, and according to the special needs of customers and manufacture of metal products. Widely used in construction, municipal, water supply and drainage, HVAC, fire, electricity, metallurgical, petrochemical, gas and other industries, and exported to the Middle East. Europe and the United States and Southeast Asia and other countries and regions. High quality wins the customer the consistent high praise and trust.