[YQ98001 type filter adjustable valve piston design principle]: the valve from a performance perspective is a fluid control equipment, mainly to control the opening and closing and opening degree so as to achieve on-off and control the flow and pressure effect . Filter Piston adjustable pressure reducing valve on this basis, to control the use of hydraulic drive principle open valve, closing and opening. And meet the requirements of the valve performance, and use the pipeline as a hydraulic fluid transmission medium, without the need for a separate pump stations, which saves equipment investment, but also save energy, but also to achieve automatic control purposes. [YQ98001 adjustable valve piston type filter Features: 1, Y-shaped body with streamlined wide body structure, which has a small pressure loss, high power (more than the existing flow control valve body of generally toroidal shape 25%) and anti-cavitation ability to reduce noise. 2, the hydraulic cylinder piston drive, smooth and reliable operation. There cushioning effect when the action, and therefore very little noise. Overcome the thin film due to the pressure, flow rate changes abruptly vibration, noisy and disadvantages of the film is easily broken. 3, convenient and practical driving seal mechanism, the entire organization has the drive, guide, sealing the three functions, but with the valve independently. When using the valve installed in the pipe network. It can also remove the entire organization, and therefore very easy repair and replacement parts. This valve is designed with three positioning guide mechanism. That piston, stem, guide frame, to ensure that the valve opening and closing is more accurate and reliable positioning against other valves that cause instability OK. Piston using standard double Y-type self-sealing rubber ring principle that safe and reliable seal. The organization is provided with a spring to prevent abrupt changes in fluid pressure vibration generated by the flow and no flow automatic shut-off valve to prevent the media back. Hydraulic cylinder has a cushioning effect, namely reducing water impact pressure (water hammer) on the pipe network. 4. The "building water supply and drainage design specifications" in the relevant provisions of the control valve to be installed before the filter, and should be easy discharge requirements. YQ9800 type hydraulic control valve to control valve and filter combination of reasonable, and the structure is generally shorter than the length of 45%. In DN100 Case, YQ9800 type filter control valve piston with a length of 415mm, and the control valve plus the general case the filter total length 720mm. Visible mounted YQ9800 type hydraulic control valve DN100 than for ordinary control valve and a filter to shorten the 300mm and light weight of 20% in length. And less of a pipe line fittings, reducing investment costs. 5, YQ9800 multifunctional filter piston hydraulic control valve in the main valve remain unchanged, according to the different network requirements, accompanied by co-pipe network control system to meet different needs, such as valve can 调减, safety relief valves, floating remote control valve, slow closing check valve, electric ball valve, multifunctional pump control valve, flow control valves. And can achieve self-control, electronic control, remote control, and control the time and speed of opening and closing. Reaches a valve multifunctional role, offering an ideal fluid control devices for the industrial areas of modern water systems engineering, oil and other