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The innovations of hard-sealed butterfly valves in terms of working principle, structural design, process manufacturing, automated assembly, etc.
provide a reference for the domestic independent research and development of large-diameter, high-hardness, all-metal-sealed high-performance butterfly valves.
In order to further standardize the production and processing of enterprises, improve the processing technology of hard-sealed butterfly valves, improve product quality, speed up the formulation of product-related group standards, and fully market products, it is imperative to meet user requirements.
Recently, the "hard seal butterfly valve" group standard has completed the preparation of the draft for soliciting comments, and it is now open for comment, and before November 10, 2020.
provide a reference for the domestic independent research and development of large-diameter, high-hardness, all-metal-sealed high-performance butterfly valves.
In order to further standardize the production and processing of enterprises, improve the processing technology of hard-sealed butterfly valves, improve product quality, speed up the formulation of product-related group standards, and fully market products, it is imperative to meet user requirements.
Recently, the "hard seal butterfly valve" group standard has completed the preparation of the draft for soliciting comments, and it is now open for comment, and before November 10, 2020.
As a component used to realize the on-off and flow control of the pipeline system, the butterfly valve is currently widely used in the food industry, water treatment, chemical industry, petroleum and other industries, and it is increasingly used in low-pressure large and medium-diameter pipelines.
It is understood that the butterfly valve can be quickly opened and closed as long as it is rotated 90°, and the operation is simple.
At the same time, the valve has high temperature resistance, high pressure, anti-abrasion, non-leakage and good fluid control characteristics.
It can integrate control and shutdown.
The high grade and low leakage are very popular in the market.
It is understood that the butterfly valve can be quickly opened and closed as long as it is rotated 90°, and the operation is simple.
At the same time, the valve has high temperature resistance, high pressure, anti-abrasion, non-leakage and good fluid control characteristics.
It can integrate control and shutdown.
The high grade and low leakage are very popular in the market.
However, there is currently no relevant standard specifically for hard-sealed butterfly valves.
In this regard, industry professionals have compiled the "hard-sealed butterfly valve" group standard.
It is reported that the "Hard Seal Disc Valve" group standard proposed by Wuzhong Instrument Co.
, Ltd.
under the jurisdiction of Ningxia Mechanical Engineering Society has completed the preparation of the draft for solicitation of comments.
In order to ensure the scientificity, rigor and applicability of the standards, in accordance with the relevant provisions of the "Ningxia Mechanical Engineering Society Group Standards Management Measures", comments are now publicly solicited, and comments are now publicly solicited, and the deadline is November 10, 2020.
In this regard, industry professionals have compiled the "hard-sealed butterfly valve" group standard.
It is reported that the "Hard Seal Disc Valve" group standard proposed by Wuzhong Instrument Co.
, Ltd.
under the jurisdiction of Ningxia Mechanical Engineering Society has completed the preparation of the draft for solicitation of comments.
In order to ensure the scientificity, rigor and applicability of the standards, in accordance with the relevant provisions of the "Ningxia Mechanical Engineering Society Group Standards Management Measures", comments are now publicly solicited, and comments are now publicly solicited, and the deadline is November 10, 2020.
Generally speaking, the formulation, promotion and application of group standards are inseparable from related normative references.
It is understood that there are more than 10 normative reference documents for the group standard of "Hard Seal Disc Valve", including "GB/T4213-2008 PneumaticRegulating valve , "ISO5211-2017 part-turn valve drive connection", "ANSI/FCI70-2-2013 control valve seat leakage", "API609-2018 double flange, lug and wafer connection butterfly valve", " ASMEB16.
34-2017 valve-flanged, threaded and welded ends" etc.
Control valve It is understood that there are more than 10 normative reference documents for the group standard of "Hard Seal Disc Valve", including "GB/T4213-2008 PneumaticRegulating valve , "ISO5211-2017 part-turn valve drive connection", "ANSI/FCI70-2-2013 control valve seat leakage", "API609-2018 double flange, lug and wafer connection butterfly valve", " ASMEB16.
34-2017 valve-flanged, threaded and welded ends" etc.
No matter what kind of valve, its sealing performance directly affects the quality of the product.
If the product is poorly sealed, it may cause liquid, gas, etc.
to leak, resulting in a waste of resources.
Even produce unnecessary safety hazards.
The group standard of "Hard Sealed Butterfly Valve" clearly stipulates the sealing requirements of the stuffing box and other connections, and the sealing performance requirements of the valve seat.
Among them, it is required that there should be no visible leakage and air bubbles during the test duration of the stuffing box and other connections, and the test medium, pressure, and time should comply with relevant regulations.
If the product is poorly sealed, it may cause liquid, gas, etc.
to leak, resulting in a waste of resources.
Even produce unnecessary safety hazards.
The group standard of "Hard Sealed Butterfly Valve" clearly stipulates the sealing requirements of the stuffing box and other connections, and the sealing performance requirements of the valve seat.
Among them, it is required that there should be no visible leakage and air bubbles during the test duration of the stuffing box and other connections, and the test medium, pressure, and time should comply with relevant regulations.
Not only that, the "Hard Seal Butterfly Valve" group standard also specifies the hard seal butterfly valve of different caliber ranges, and its leakage rate is based on the product performance and use conditions, and different leakage requirements are formulated.
At the same time, the sealing surfaces of the valve seat and the sealing ring are all hardened, and there is a replaceable sealing ring.
And its axial self-positioning structure and bearing double sealing protection structure, at the same time the valve seat has erosion resistance, wear resistance, valve low torque, so the sealing performance can meet the requirements of two-way sealing.
At the same time, the sealing surfaces of the valve seat and the sealing ring are all hardened, and there is a replaceable sealing ring.
And its axial self-positioning structure and bearing double sealing protection structure, at the same time the valve seat has erosion resistance, wear resistance, valve low torque, so the sealing performance can meet the requirements of two-way sealing.
As a product in butterfly valves, hard-sealed butterfly valves must be introduced to the market to better meet the new requirements of users for high-quality products.
However, the hard-sealed butterfly valve is not in line with industry standards, so there is no unified quality control basis for product development, production, test inspection, and acceptance.
I believe that with the formulation of the "Hard Seal Butterfly Valve" group standard, it will not only promote product standardization, standardized production, improve product production quality, but also help enhance market competitiveness, break import monopoly, and enhance my country's equipment manufacturing industry's independent innovation and manufacturing.
Ability to promote the transformation and upgrading of traditional manufacturing industries.
However, the hard-sealed butterfly valve is not in line with industry standards, so there is no unified quality control basis for product development, production, test inspection, and acceptance.
I believe that with the formulation of the "Hard Seal Butterfly Valve" group standard, it will not only promote product standardization, standardized production, improve product production quality, but also help enhance market competitiveness, break import monopoly, and enhance my country's equipment manufacturing industry's independent innovation and manufacturing.
Ability to promote the transformation and upgrading of traditional manufacturing industries.
Original title: Speeding up the implementation of hard seal butterfly valve group standard to promote the transformation and upgrading of gate valve industry
