Basic content of valve design_US HASAN FLUID CONTROL CO., LTD

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Basic content of valve design

2016-06-21 管理员 Read 1135

As an important component of the pipeline system, valves should ensure the safe and reliable implementation of the usage requirements of the pipeline system for valves. Therefore, valve design must meet all the requirements for the valve in terms of pressure, temperature, corrosion, fluid characteristics of the working medium, as well as operation, manufacturing, installation, maintenance, and other aspects. Valve design must clearly define the given technical data, i.e. "design input", on which the design can be completed correctly.

The basic data required for the "design input" of a valve: the purpose or type of the valve, the working pressure of the medium, the working diagram of the medium, the physical and chemical properties of the medium (corrosiveness, flammability, explosiveness, toxicity, physical state, etc.), the nominal diameter of the structural length, and the connection form of the pipeline. The operation mode of the valve door (manual, gear transmission, worm gear transmission, electric, pneumatic, hydraulic, etc.)

When designing valve technology and working drawings, the following data and technical requirements should be mastered: valve flow capacity, fluid resistance coefficient, valve opening and closing speed, and opening and closing times. The energy characteristics of the driving device (AC or DC, voltage, air pressure, etc.), valve working environment and maintenance conditions (whether explosion-proof, whether tropical climate conditions, etc.), weight limitations of external dimensions, earthquake resistance requirements, valve design program design and development planning, design and development planning, review, verification, and confirmation activities for each design and development stage, responsibility and authority for design and development, design and development input functions and performance requirements, legal and regulatory requirements for use, information provided by similar designs, other requirements necessary for design and development, design and development outputs meet the requirements of design and development inputs. Provide appropriate information for procurement, production, and service provision, including or referencing the product acceptance standards that require product characteristic design and development confirmation for the safety and normal use of the product. Confirm design and development changes through product identification.