Valve Encyclopedia
Fouten Flow Control (Jiangsu) Co., Ltd. Valve Encyclopedia, focusing on pneumatic valves, electric valves, regulating valves, and lined valves, interprets common customer issues such as pressure rating, sealing, drive, and materials, and provides selection, procurement, and acceptance references based on corresponding product information.
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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 > -
How to order spare parts for regulating valves so that they cannot be installed? Verification of valve internal part number, stroke and material2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. organizes the method for checking spare parts of regulating valves, explaining the product number, drawing version, valve internal component combination, stroke, and material function. Combining HPG cage type regulating valve to assist customers in preparing ordering and re inspe...View more > -
Can the adjustable ratio of the regulating valve be adjusted stably from zero flow? Inherent and installation scope2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. interprets the inherent adjustable ratio and installation range of the regulating valve, explaining the different boundaries of actual pressure difference, minimum stable flow rate, and closing leakage. Combining the VQ647H pneumatic V regulating ball valve to help customers orga...View more > -
What is the difference between regulating valve flow opening and closing and air opening and air closing? Do not mix flow direction and drive2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. analyzes the difference between flow opening and closing of regulating valves and gas opening and closing, and checks the fluid action, air pressure drive, control signal, and fault location separately. Based on the procurement and installation points of ZJHP pneumatic single sea...View more > -
Electric valves can be opened on site, but DCS cannot be controlled? Local, remote, and stop permissions2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. interprets the local, remote, and stop permissions of electric valves, explaining the command source, interlock priority relationship, and control room feedback. Combining Z941H electric gate valve to assist customers in establishing a mode acceptance form, the on-site ability to...View more > -
Why does the casing of the electric valve still get damp even though it hasn't received rainwater? Anti condensation configuration and shutdown management2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. analyzes the moisture and condensation of electric valves, distinguishing requirements for shell water ingress, anti condensation heating, and temporary storage during shutdown. Combining Q941F46 electric fluoropolymer-lined ball valve to assist customers in verifying cable entry...View more > -
Is a communication interruption of an electric valve equivalent to a power outage? Missing Action and State Validity2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. distinguishes between communication interruption, command loss, and power supply failure of electric valves, explaining the disconnection action, validity of valve position data, and restoration of permissions. Combining D941W electric regulating butterfly valve to assist custome...View more > -
Can pneumatic ball valves be manually operated at any time with a handwheel? Backup mechanism, disconnection and reset verification2026-10-13Fouten Flow Control (Jiangsu) Co., Ltd. interprets the manual backup mechanism of pneumatic ball valves, explaining the differences between pneumatic energy, disengagement, valve position feedback, and automatic recovery. Combined with Q3941F manual and pneumatic dual-purpose ball valve, we help customers clarify deliv...View more >
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