1. In order to prevent mishandling, the craftsman must pay attention to the notices marked on the nameplate. According to the new standard of China's new pneumatic control valve (GB/T4213-92), the nameplate of the actuator must at least mark the manufacturer's name, product model and rating. Flow coefficient, design number, product number and manufacturing year and month;
2. On the valve body, the arrow and the “DN†value indicating the direction of media movement and the words and values ​​of “PN†should be cast or punched out, and it can also be marked on the nameplate firmly fixed to the valve body.
3. Important regulating valves must be equipped with sufficient accessories, such as valve positioners and limit switches.
4, to have enough installation space and control space, there is enough lighting, there are strict operating procedures.
5. In order to ensure the quality of the regulating valve, the selection of the regulating valve must be correctly calculated:
(1), type, caliber, and performance must meet the requirements;
(2) The materials of various important parts of the regulating valve should be strictly selected;
(3) It is necessary to have sufficient strength and rigidity; it must pass the pressure test, air tightness and other tests in accordance with national standards;
(4) The manufacturer's manufacturing technology and test methods must meet the standards and must be certified by the competent department.
2. On the valve body, the arrow and the “DN†value indicating the direction of media movement and the words and values ​​of “PN†should be cast or punched out, and it can also be marked on the nameplate firmly fixed to the valve body.
3. Important regulating valves must be equipped with sufficient accessories, such as valve positioners and limit switches.
4, to have enough installation space and control space, there is enough lighting, there are strict operating procedures.
5. In order to ensure the quality of the regulating valve, the selection of the regulating valve must be correctly calculated:
(1), type, caliber, and performance must meet the requirements;
(2) The materials of various important parts of the regulating valve should be strictly selected;
(3) It is necessary to have sufficient strength and rigidity; it must pass the pressure test, air tightness and other tests in accordance with national standards;
(4) The manufacturer's manufacturing technology and test methods must meet the standards and must be certified by the competent department.
Infusion Set Drip Chamber With Filter
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Infusion Set ;Drip Chamber With Filter;Infusion Set Factory
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