1, the two-seater regulator in a small open degree easy to generate oscillation when the working status? Two-seater regulator why can't we use the small open degree, this is decided by its seat structure. Double regulator has two valve core, valve core in the flow, the valve core in the flow close, regulating Industrial Valves valve core in the flow, stability is better, so when the two-seat regulating valve valve core in approaching flow close state small open degree of scope of work, the valve core will produce a shock. On the control valve selection, therefore, must avoid two-seater regulator in the use of small open degree. 2, two-seater regulator cannot be used as a cut-off valve? Two-seater regulating valve valve core has the advantage that the force balance structure, after allowing former valve, valve differential pressure range is big, because contact the two seal face are not good, so the leakage quantity is big, cannot have the effect of truncation in the line, even now the two-seater valve added sleeve improved, but also can't change it due to structural design limitations. 3, straight travel regulator and quarter-turn valves prevent sexual comparison? Straight travel regulating valve Industrial Valves core is vertical movement, the fluid is horizontal movement, cavity flow channel structure is not straight through, generally showed the S shape, change so formed many blind spots, time grows, medium easy to form in the blind area precipitation, thus easy to cause congestion alike. Quarter-turn valves in the valve core is horizontal rotary motion, and media also is in the horizontal flow, therefore not easy corner, precipitation is easy to flow away. So straight travel regulator to collect performance is much better than quarter-turn valves. 4, straight trip valve stem is fine? Due to the principle of sliding friction, rolling friction small. Straight trip valve stem is do slip up and down movement, so produce greater friction. So will stem designed to be small, USES the friction coefficient of ptfe packing, is to reduce friction as much as possible. But the resulting stem thin, flexible, packing problem such as short life. 5, quarter-turn valves to cut off the pressure difference is bigger? Due to the force produced by a dielectric function on the valve core on the valve shaft torque is very small, so can bear large pressure difference, so the angular travel type of valve to cut off the pressure difference is bigger, 6, why cut-off valve should try to choose hard seal? Only from the cutting effect, soft seal valve is better than hard seal valve performance. But soft sealing valve in abrasion resistance, reliability is far worse than hard seal valve performance, so from the leakage, the double standards of reliability, hard seal cut-off valve is better than soft seal cut-off valve. Now a lot of cut-off valve adopts surfacing welding alloy, greatly improve the sealing performance, enough to meet the requirements of the cut-off valve.
Shenzhen Mech Valve Trading Co., Ltd. have long believed that management practices are an important element in productivity.
Shenzhen Mech Valve Trading Co., Ltd. offers the best products, high-quality services and innovative technology.
Increasing consumer awareness and rising concern about improving y gate valve are driving the market of products.
Shenzhen Mech Valve Trading Co., Ltd. has a number of producing line for producing flow control valve.
Latest technology and manufacturing equipment has improved the quality of wedge gate valve.