800X pressure difference balancing valve is a kind of valve used to balance the pressure difference between the supply and return water of the air conditioning system. The valve can improve the system utilization, keep the pressure through the accurate - fixed value, and can minimize the system noise, and excessive pressure caused by damage to the equipment. Differential pressure bypass valve, pressure balance valve, by-pass balancing valve, 800X differential pressure balance valve balancing valve is superior to other places that it did not perform the mechanism, completely rely on the media's own pressure to balance the function of the system, energy saving and installation space is a kind of intelligent valve.
Valve strength and tightness test should be in accordance with the following requirements.
A, the strength of the valve test pressure of 1.5 times the nominal pressure;
B, valve tightness test pressure for the nominal pressure of 1.5 times;
C, test pressure in the test duration should remain unchanged, and the shell filler and valve sealing surface without leakage;
D, valve test duration on the table.
(1) the engineering application of the hydraulic control valve is a manufacturing plant inspection, a variety of complete, technical information to meet the requirements of the product.
(2) according to the functional requirements, select the valve type, and then according to pipeline transportation media, temperature, construction standards and the main requirements of the industry, to determine the valve body and sealing parts of the material. Body material is commonly used in cast iron, copper, iron, copper, plastic, etc.. The commonly used sealing surface and lining materials are copper alloy, plastic, steel, hard alloy, rubber, etc.. Body material should be matched with piping material.
(3) the nominal pressure of the valve has 0.6, 1, 1.6, 2.5 and 4.0MPa and other different levels, the pipeline transportation of the media, the working pressure should be less than the nominal pressure of the valve.
(4) the project of the hydraulic control valve setting should have enough space for management, operation, installation and maintenance, and should meet the requirements of the pipeline valve.
(5) when the pipe is connected by flange, the hydraulic control valve with flange connection should be adopted, and the hydraulic control valve with groove connection should be adopted when the pipeline is connected with a groove.
(6) water control valve should be set in the medium one-way flow of the pipeline.
(7) the direction of the arrow on the main body of the hydraulic control valve must be consistent with the pipeline system.
(8) the water control valve should not have gas blocking, air resistance. Automatic exhaust valve should be set at the highest position of the pipe network.
(9) when the valve is installed, the valve cover and valve stem should be facing up. Vertical installation, valve cover, valve stem should be outward.
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