Recently, the National Grid announced the first batch of candidates for the first batch of electric energy meters and bidding information procurement equipment in 2014. From the list, it can be seen that the purchase of smart meters has broken the monopoly situation of the big four companies last year.
Among them, Hao Ningda has revealed that the total number of products won by the company is 771,795, and the total bid amount is expected to be approximately RMB 164,822,000. The number of successful bids for Level 2 single-phase fee-controlled smart energy meters was 731,745 and the amount was RMB 14,523.79 million; the number of successful one-phase three-phase energy-saving smart energy meters was 40,050, and the amount was RMB 19.6243 million.
In addition, HKUST Intelligence has revealed that its company is expected to bid for RMB 41,146,500. Its main products are concentrators, collectors and special collection terminals. Holley Instruments, Wasion Group, Linyang Electronics, and Samsung Electronics still hold the top spot, but Juhua Technology is the most interesting one. As the electric energy meter company that was only listed last year, it was able to obtain the sixth tender share. Obviously, strength should not be underestimated.
In 2014, the State Grid plans to install 60 million new smart meters, doubling the amount planned for 2013. Juhua Technology defeated Hao Ningda to occupy the top six, thanks to a good momentum in the development of the smart meter market this year.
Control valves are normally fitted with actuators and positioners. Pneumatically-actuated globe valves and diaphragm valves are widely used for control purposes in many industries, although quarter-turn types such as (modified) ball and butterfly valves are also used.
Control valves can also work with hydraulic actuators (also known as hydraulic pilots). These types of valves are also known as automatic control valves. The hydraulic actuators respond to changes of pressure or flow and will open/close the valve. Automatic control valves do not require an external power source, meaning that the fluid pressure is enough to open and close them.
Automatic control valves include pressure reducing valves, flow control valves, back-pressure sustaining valves, altitude valves, and relief valves.
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