How to select materials for casting plastic muffler manufacturers

The setting of automatic control and monitoring system requires necessary technical documents such as equipment layout, wiring diagram, setting diagram, system diagram, etc. Automatic control and monitoring system software, hardware design drawings, air duct muffler list, design description and related documents. Materials used in automatic control and monitoring system, product quality certificate, performance inspection report, entry inspection record and re inspection report. Construction and inspection records. According to the design requirements, uninterruptible power supply should be used in the power supply computer control system and data acquisition system. The model, number, material and specification of regulating valve of regulating actuator shall meet the design requirements. Inspection method: observe and check the construction records. The installation of adjustable valve and actuator should be solid, flat, complete accessories, connecting pipe, correct wiring, inlet and outlet direction. Detection method: wrench test, observation and detection. The opening and closing direction of the actuator should be consistent with that of the muffler failure operation hand wheel and be marked. Test method: observation and examination. The installation position of actuator and control valve indicator must be consistent with the actual opening, which can achieve full opening and full closing. Inspection method: 5 points inspection and observation. The valve core leakage test of control valve, air tightness test of diaphragm head of pneumatic diaphragm control valve and insulation test of electric control valve shall comply with relevant regulations. Inspection: Inspection and test records. The computer, analog panel, PLC display and data of the monitoring system must be consistent with the field, and should not exceed the delay time required by the technical requirements. Inspection method: trial operation, observation and inspection. When the computer or program-controlled device is turned on, the action of relay must meet the setting requirements and not exceed the process requirements. Examination method: observation. The actuator shall correctly execute the instructions issued by the muffler design control room without delay exceeding the process requirements. Examination method: observation. The high level computer screen of the controller shall be accurate, comprehensive and clear.