Use of anti-corrosion chemical pump valve door, filter knowledge? What are those?

Anti-corrosion chemical water pump is in the industrial production of corrosive chemical raw materials, and transport of the commonly used acid alkali liquor water pump, valve is a common form a complete set of equipment, for the use of filters, basic is according to the demand of medium, usually anti-corrosion chemical pump has good corrosion resistance, the poor wear resistance, to handle more liquid solid content, can install filters, so what's the specification for valve and filter? Valves, filters, control components and instrumentation of the model, specification and parameters should conform to the requirements of the design documents, should have qualified certificate and instruction manual and other technical documents. One, stop valve, throttle valve, check valve, automatic control valve body, filter installation shall conform to the requirements of the design documents and the current national standard 'industrial valve installation maintenance general requirements' the relevant provisions of the GB/T 24919, and shall meet the following requirements: 1, for packaging in good condition, sealed performance is good, the import and export through inspection no rust, no visible flaws, and in the warranty period of the valve according to the current national standard 'pressure piping specification industrial pipeline four parts: production and installation of' GB/T20801. The relevant provisions of the 4 can be installed directly after spot checks of qualified and incompliance conditions of valves shall be disassembled, cleaned, replace the damage and failure element, and according to the provisions of the design documents and technical documents for pressure and seal test, test unqualified installation is prohibited. 2 rows when installation, valve, the valve should be in a straight line to the center of the handwheel. 3, cryogenic equipment need on-site installation of valves, the filter should be reserved for cold layer thickness according to design requirements, should not be embedded in the insulating layer. 4 valve, check valve, and automatic control valve core, the filter filter installation should be performed after the drainage system, the valve core is sealed or should not be disassembled, according to the requirement of the technical documents should be taken to prevent damage of valve core in the process of installation and drainage measures. When welding the influence of temperature, the impurities such as factors in the process of sewage are likely to damage the valve core, so take the corresponding protective measures. Valves, filters, in use process often need to check and maintain, within the cold insulation layer embedded equipment will influence the work, therefore requires the reserved cold insulation layer thickness according to the requirements of design. 2, pressure, temperature, liquid level and flow control components and instrumentation, such as the control of the automatic control valve and actuator installation shall conform to the requirements of design documents and the current national standard 'automation instrument engineering construction and quality acceptance specification' GB 50093 regulations, and shall meet the following requirements: 1, for packaging in good condition, sealed performance is good, the import and export through inspection no rust, no visible flaws, and in the warranty period of control components and instrumentation, automatic control valve control and actuators can be installed directly; Incompliance condition control components and instrumentation, automatic control valve control and actuator should be according to the current national standard 'automation instrument engineering construction and quality acceptance specification, the relevant provisions of the 50093 GB test, test unqualified installation is prohibited. 2, equipment need to on-site installation level gauge or liquid level sensor, should be in strict accordance with the requirements of design and technical documents of benchmark position. 3, cryogenic equipment need to on-site installation level gauge or liquid level sensor should be in front of the cold insulation construction calibration, recording datum position. 4, need on-site installation alarm device should be sensitivity test before installation. Low temperature control components and instrumentation equipment need to on-site installation, should be reserved for cold layer thickness according to design requirements, should not be embedded in the insulating layer. Within the design requirements, cold room thermometer or temperature sensor installation position should be shining, not affected by local heat source and cold source. Alarm system refers to the cooling system parameters such as liquid level, temperature, pressure high ( Ultra-low) Alarm device, for example, used in liquid level alarm ball float liquid level controller, the sensitivity test refers to by simulating alarm condition, test alarm device can work normally. Local heat source and cold source including but not limited to, the cold bridge, refrigerated cold room door, refrigeration and heat pipe, cold, cold type fan export table surface, lighting lamps and lanterns, etc. Three, pressure gauge installation shall conform to the requirements of the design and technical documents and the following provisions: 1, the calibration of pressure gauge and seal in accordance with related regulations of production safety supervision department, packing in good condition, no rust, no obvious flaws, can be directly installed in charge during the warranty period, otherwise should be according to the relevant provisions of the safety supervision department of check, 2, ammonia refrigeration system for ammonia pressure gauge must be used; Protection grade should not be below the IP54.
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