The 8th China International Conference on Radio Frequency Identification Technology Development was held in Shanghai on the 5th with the theme of “RFID led the application of technology, technological innovation and industrial upgradingâ€. Representatives from the Ministry of Science and Technology, the Ministry of Industry and Information Technology, leaders, experts, scholars, members of the RFID Technology Innovation Strategic Alliance, and representatives of upstream, downstream, and end-users engaged in RFID technology are gathered together to share the concern of everyone. Hot issues such as the National RFID Air Interface Technical Standard and the National Top Ten Action Plan for the Internet of Things are discussed. At the meeting, members of the Radio Frequency Identification (RFID) Industry Technology Innovation Strategic Alliance, which has been awarded the “National Pilot Alliance†by the Ministry of Science and Technology, unify their swords at the “Shanghai Industry Fair†to showcase their RFID achievements and advantages. The conference also invited leaders of the Ministry of Science and Technology, the Ministry of Industry and Information Technology, and the Shanghai Municipal Science and Technology Commission to hold a ceremony for the awarding of members of the "Alliance". The RFID technology standard has become the focus of this conference. Although the RFID tag is small, the significance of its technical standards will be related to the strategic level of the national economy and the people's livelihood, involving national information security and national economic benefits. Following 2.45GHz, China's independent standard radio frequency identification 800-900MHz air interface protocol was officially released on the eve of the conference. The air interface protocol is the core technology of the radio frequency identification system. The release of the standard will play an important role in promoting the industrialization process of China's independent innovation radio frequency identification and accelerating the construction of the Internet of Things. As an important topic, the participating experts conducted in-depth discussions on how to seize opportunities and accelerate the development of independent standard products and industrial applications. A series of favorable news such as the release of the Ten Action Plan of the Internet of Things, the release of the National Independent Standard Radio Frequency Identification Air Interface Protocol, and the approval of the National Radio Frequency Identification Industry Technology Innovation Strategic Alliance brought a new trend to the seminar. With the support of a series of national policies, we will surely grasp the historical opportunities, accelerate independent innovation, cooperate with each other, overcome difficulties, make contributions to accelerate industrial upgrading, promote the development of RFID and the Internet of Things industry, and believe in the spring of RFID. Already arrived. Before the meeting, the National Alliance held a general meeting of members to accelerate the establishment of the development goals and key tasks under the new situation of the alliance, improve the management system of the alliance, promote the cooperation and innovation of China's RFID industry chain, and enhance the core competitiveness of enterprises to develop development plans. All members of the alliance said that they will seize the opportunity of the "Special Action Plan for the Development of Internet of Things (2013-2015)" and do a good job in the development of RFID technology, making the alliance an important force to promote the healthy and rapid development of China's Internet of Things.
Stop
valve is usually used for or connecting the medium flow and is not recommended
for throttling.
The
maximum permissible leakage of the Stop Valve with non-metal elastic seals is
zero, and that of the stop valve with meal seals is 0.1xDNmm3/s. Therefore,
acceptable stop valves with metal seals possibly have slight leakage. Hence, in
the applications where there must not be any leakage,especially at the pipeline ends,stop valves with soft seals should be
used,and shutoff
valves with metal seals should not be used.
Nominal
Pressure of Brass Stop Valve is 1.6MPa. Medium temperature for metal seal is
-20℃~150℃, and medium temperature for non-metal
elastic seal is -20℃~120℃. When the stop valve is used for
saturated steam, the pressure of the saturated steam should be ≤0.6MPa.
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International Symposium on Radio Frequency Identification Technology Holds National Standards for RFID