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What is the price difference for regulating valves? How to compare the valve body, internal components, actuator and acceptance scope2026-10-15Fouten Flow Control (Jiangsu) Co., Ltd. combined with pneumatic single seat regulating valve selection, there is a significant difference in the quotation between the two regulating valves. Don't just compare the model and diameter for now. The valve body may be the same, but the internal capacity, contact material, ac...View more > -
How to choose between electric O ball valve and V ball valve? The difference between cutting off and continuous adjustment2026-10-15Fouten Flow Control (Jiangsu) Co., Ltd. combined with electric flange ball valve selection, if the task is to reliably switch pipelines, first compare the cutting performance; If it is necessary to continuously change the flow rate with the signal, it is necessary to compare the throttling channel and the adjustment ca...View more > -
Do we still need to verify the on-site system pressure test if the valve passes the factory test?2026-10-14Fouten Flow Control (Jiangsu) Co., Ltd. interpretation valve factory test on-site pressure test, still needs to be verified. Under the specified conditions for factory testing and evaluation of finished products, on-site system testing also includes pipe fittings, installation, segmentation boundaries, and different eq...View more > -
How to write the leakage rate of vacuum valves for acceptance? Units, test gases, and boundaries2026-10-14Fouten Flow Control (Jiangsu) Co., Ltd. interprets the unit of vacuum valve leakage rate, cannot. Leakage rate, pressure, and pumping capacity correspond to different quantities, and the detection of gas and testing boundaries also affect the meaning of the report. Purchase verification, complete set acceptance, and us...View more > -
Can the fluoropolymer-lined flange bolts still use their original torque after lubrication? Tightening condition verification2026-10-14Fouten Flow Control (Jiangsu) Co., Ltd. Interpretation: fluoropolymer-lined flange bolt lubrication cannot be directly used. Torque is not a direct measurement of bolt preload force, and friction between threads and pressure bearing surfaces can affect the relationship between the two. Purchase verification, complete s...View more > -
Butterfly valves are marked with bidirectional sealing, can the reverse pressure difference also be used at full rated value?2026-10-14Fouten Flow Control (Jiangsu) Co., Ltd. interprets the bi-directional sealing pressure difference of butterfly valves, which needs to be confirmed separately. The performance of allowing reverse flow, reverse pressure, and reverse shut-off are not exactly the same. Purchase verification, complete set acceptance, and us...View more > -
What should be considered when connecting pneumatic valve exhaust to a shared pipeline? Back pressure and motion interference2026-10-14Fouten Flow Control (Jiangsu) Co., Ltd. Interpretation: Pneumatic valves share exhaust, special solutions can be discussed, but it cannot be assumed that the attachment allows for arbitrary exhaust back pressure. The resistance of shared pipelines, simultaneous action, and exhaust of other equipment may alter the condi...View more > -
Can the electric valve be repaired by pressing the emergency stop button? Control stop and energy isolation2026-10-14Fouten Flow Control (Jiangsu) Co., Ltd. interpretation of electric valve emergency stop maintenance, cannot be judged in this way. Stopping actions and isolating hazardous energy are two separate things; Valves may also be affected by power supply, medium pressure, mechanical energy storage, or other control commands. ...View more > -
Is the white lining of the fluoropolymer-lined valve PTFE? Material name, physical object, and traceability information2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. specifies the identification of fluoropolymer-lined valve materials, distinguishing between appearance color, series options, engineering abbreviation, and finished product traceability. Combining D941F46 electric fluoropolymer-lined butterfly valve to help customers confirm the ...View more > -
Can the protective cover be removed first after the fluoropolymer-lined valve arrives? End face, storage and installation handover2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. summarizes the key points for the delivery, storage, and installation handover of fluoropolymer-lined valves, including end face protection, restoration after inspection, load handling, and flow channel identification. Combining three-way fluoropolymer-lined ball valves helps cus...View more >
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