construction safety Articles

  • Acceptance Specification and Design of Dust Free Workshop

    1. Reasonable layout of process flow and building plane; 2. Choose building structures and materials that meet the characteristics of dust-free workshop; 3.Dust-free workshop design should select reliable and economical cold and heat sources according to the local energy supply background at that time. 4. Divide and arrange air-conditioning purification and exhaust systems; 5. Choose ...

  • Installation points of cryopumps in cryogenic refrigerators

    In the construction of the cryogenic refrigerator, the cryopump is a must. The low temperature freezer manufacturer LNEYA tells everyone that the cryopump should be operated according to the requirements when it is installed.Installation facilities and requirements:The foreline pump—the cryopump requires a pre-stage pump pre-vacuum chamber to draw the start-up pressure of the cryopump and to ...

  • Dynamic Flow Balancing Valves

    Dynamic flow balancing valves are also known as self-operated flow control valves, self-operated balancing valves, constant flow valves, and automatic balancing valves. It automatically changes the drag coefficient according to changes in system operating conditions. Within a certain pressure difference range, the flow rate can be effectively controlled to maintain a constant value, that is, when ...


    By ZhengFeng Valve Group

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