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KOSO EP800 Positioner
The use of KOSO valve positioner, its importance in chemical automation production!
KOSO regulating valves and valve positioners are generally installed on some pipelines in chemical plant workshops. The valves that look like mushrooms are regulating valves.
The koso regulating valve, the keyword regulating two words, its regulating range can be adjusted arbitrarily between 0 and 100%.
There is a device hanging under the head of each koso control valve, which is the heart of the control valve, the koso valve positioner, which plays a vital role in the control accuracy and response time of the control valve.
The koso EP800 electric positioner is a traditional pneumatic valve positioner, which uses a mechanical electrical converter to convert the electrical signal into a gas signal that can be directly used by the regulating valve.
Working principle of koso Valve Positioner EP800:
It works according to the principle of torque balance. When the signal current is passed to both ends of the coil of the torque motor 1, it acts on the permanent magnet steel to generate a torque to the main lever, so the baffle is close to this sin, and the output pressure amplified by the amplifier is passed to the piston actuator 2 cylinder, the feedback spring is stretched through the feedback cam, and when the feedback torque of the spring to the main lever is balanced with the torque of the input current acting on the main lever, the meter reaches a balanced state, and a certain input current corresponds to a certain valve position .
KOSO EP800 valve positioner parameter
KOSO EP800 valve positioner is selected according to the table below ：
Under what circumstances does the chemical industry need to use koso valve positioners?
(1) When the friction force is large and precise positioning is required. Such as high temperature, low temperature regulating valve or regulating valve with flexible graphite packing;
(2) The slow process needs to increase the response speed of the control valve. For example, regulation systems for parameters such as temperatture, liquid level, analysis, etc.
(3) When it is necessary to increase the output force and cutting force of the actuator. For example, single-seat valve with DN≥25, double-seat valve with DN>100. When the pressure drop at both ends of the valve is △P>1MPa or the inlet pressure P1>10MPa.
(4) Sometimes it is necessary to change the air-opening and air-closing forms during the operation of the split-range regulating system and the regulating valve.
(5) Occasions where it is necessary to change the flow characteristics of the regulating valve.
The use of KOSO valve positioner, its importance in chemical automation production!
KOSO regulating valves and valve positioners are generally installed on some pipelines in chemical plant workshops. The valves that look like mushrooms are regulating valves.
The koso regulating valve, the keyword regulating two words, its regulating range can be adjusted arbitrarily between 0 and 100%.
There is a device hanging under the head of each koso control valve, which is the heart of the control valve, the koso valve positioner, which plays a vital role in the control accuracy and response time of the control valve.
The koso EP800 electric positioner is a traditional pneumatic valve positioner, which uses a mechanical electrical converter to convert the electrical signal into a gas signal that can be directly used by the regulating valve.
Working principle of koso Valve Positioner EP800:
It works according to the principle of torque balance. When the signal current is passed to both ends of the coil of the torque motor 1, it acts on the permanent magnet steel to generate a torque to the main lever, so the baffle is close to this sin, and the output pressure amplified by the amplifier is passed to the piston actuator 2 cylinder, the feedback spring is stretched through the feedback cam, and when the feedback torque of the spring to the main lever is balanced with the torque of the input current acting on the main lever, the meter reaches a balanced state, and a certain input current corresponds to a certain valve position .
KOSO EP800 valve positioner parameter
KOSO EP800 valve positioner is selected according to the table below ：
Under what circumstances does the chemical industry need to use koso valve positioners?
(1) When the friction force is large and precise positioning is required. Such as high temperature, low temperature regulating valve or regulating valve with flexible graphite packing;
(2) The slow process needs to increase the response speed of the control valve. For example, regulation systems for parameters such as temperatture, liquid level, analysis, etc.
(3) When it is necessary to increase the output force and cutting force of the actuator. For example, single-seat valve with DN≥25, double-seat valve with DN>100. When the pressure drop at both ends of the valve is △P>1MPa or the inlet pressure P1>10MPa.
(4) Sometimes it is necessary to change the air-opening and air-closing forms during the operation of the split-range regulating system and the regulating valve.
(5) Occasions where it is necessary to change the flow characteristics of the regulating valve.