2015年12月19日星期六

Installation considerations gas safety valve

1, the installation directions: Make sure the gas valve mounted horizontally, and the direction of the arrow solenoid valve body surface with the gas medium flow direction consistent with the solenoid valve head upright.
2, pipeline media: should be clean and free of particulate impurities, and non-corrosive. If necessary, install a filter in front of the solenoid valve.
3. Installation Environment: Indoor or outdoor rain facilities. Ambient temperature -10∽ + 50 ℃, relative humidity 5-95%.
4, the operating space: Make sure the solenoid valve in manual operation there is sufficient room for maneuver, and leave the space required equipment maintenance. General solenoid valve top space height should be more than 20CM.
Power connection: from within the explosion-proof lead frame leads to the power cord. Proceed as follows:
(1), completely loosen the lock nut, cover the surface of the lead screw the M5 set screw, lead screw off the cover to expose the built-in terminal.
(2), the RVV0.75 * Type 2 wires through the lock nut and the lead cover is connected to the built-in terminals, tighten the screw pressed line.
(3), tighten the wire cover, tighten its surface M5 set screws, completely tighten the lock nut. Instantaneous power test, the solenoid valve shall be able to move the action.

2015年12月15日星期二

Combination gas cooker safety valve and solenoid valve

gas stove valves and safety valve interlocking mechanism, the safety valve is mounted on a gas valve body, the valve features a sealed chamber, sealed chamber equipped with a rotatable pawl, in turn shifted ground rodIt has an ear and a hook, lug with the gas in contact with the bottom of the valve stem within the valve, the valve slider hook with safety solenoid valve spool at the bottom of the contact.
It is simple, easy to use, small size, low cost, feel good.

2015年12月11日星期五

Gas valve switching direction


We see everyday gas valve or seal lid clockwise is off, counterclockwise are open. For example, the cover of bottled water, bottled honey closures are like this. The scientific statistical proof: People in knee-jerk reaction or instinctive action is clockwise operation. Therefore, the provisions of the Gas Valves clockwise to off (safe state), this design is a scientific basis.

2015年12月8日星期二

How open gas meter valve



Natural gas meter can be divided into several, one is the common gas meter, that can not install the battery, with only a mechanical counter, then this is not the inner table of the valve to shut you breathe it, you must use gas valve table after table or in front, the other is intelligent gas meter with LCD display, you must install the valve, usually such a table is prepaid, then this internal table are valves in your inner table there is the case of the remaining gas, the valve has been opened, if there is no remaining volume in the table when the valve will automatically close. This time you have to recharge in order to open the valve, but if you really need to close the valve, you can remove the battery, this time, the valve will be closed within a table.


2015年12月4日星期五

Body type Gas Control Valve

Many types of Gas Control Valve body, commonly used through single-seat, through two-seater, angular, diaphragm, low flow, tees, eccentric rotation, butterfly, sleeve type, spherical, etc. In specific choices, do the following consider: (1) disc shape of the structure, flow characteristics and mainly based on the selected factors to consider such as power imbalances (2) wear resistance, when the fluid medium is a suspension containing a high concentration of abrasive particles, valve. internal material to be hard. (3) corrosion resistance, as a corrosive medium, try to choose simple valve. (4) medium temperature, pressure, when the medium temperature, high pressure and great change, should be used and the valve spool seat materials by temperature and pressure changes small valves. (5) to prevent steam and air, steam and air only in a liquid medium in the actual production process, steam and air will form a vibration and noise, shorten the life of the valve, so the choice should Propane Control Valve prevents the valve generate steam and air



2015年12月1日星期二

When the gas fire, you should first close the valve, what fire works?


Cut off fuel.
Extinguishing principle of water: the water itself does not burn, cover the surface of the combustible material to absorb a lot of heat, the temperature of fuel drastically reduced to less ignition point, and water vapor produced in the combustible surface covering, also played a cut off the air role.
Carbon dioxide fire extinguishing principle: because of the carbon dioxide itself does not burn or support combustion, density greater than air, played the role of isolated air, without oxygen naturally extinguish the fire.
Overall, biomass burning have two conditions: a temperature drop below the ignition point, the absence of air between two indispensable fire, meet one of the conditions, the fire can be extinguished.!

2015年11月27日星期五

Development of Chinese valve industry

Many Chinese valve industry chain, but non-valve power. To see the whole country has entered the ranks of the world's great powers valves, but the product quality from the point of view of the valve power is still a long gap. Production industry concentration, low-end products supporting the valve research and development capabilities, the valve industry and low level of manufacturing technology still exists, import and export trade deficit expanded.
The coming years will be the speed of the shock valve industry, a direct consequence of this is to bring high-speed shocks causing the valve cabinet brands to expand the trend of polarization camp. Really be able to survive in the market of the valve business is absolutely not so much. But this high-speed oscillation valve industry will bring tremendous opportunity to shock the result will make the market more rational operation.
Localization of the road-end valve abnormality "bumpy"
Valve industry in national economic development, as an important part of the manufacturing sector to prepare, play a very important role. Since the level of domestic and international advanced valve manufacturing is still a gap compared to the level, a lot of high-parameter, high temperature and high pressure, high level of critical valves former pound has been dependent on imports, in order to urge the valve localization
Actively adopt international standards for product design; absorbing foreign outstanding design structures (including patented technology); product testing, performance testing in strict accordance with international standards; absorption of foreign advanced production technology and experience emphasis on research and application of new materials; clarify imports high parameters valve product technical parameters and working conditions, etc. is to accelerate the localization process, promoting the valve product updates, the full realization of localization only way valve.
With the accelerated pace of the valve industry restructuring, the industry will be the future of the vsafety gas valveand product competition between brands, product development to high-tech, high-parameter, strong corrosion resistance, high-life direction, only through constant technological innovation, development new products, technological innovation, in order to gradually increase the level of product technology, to meet the domestic means of supporting the full realization of the gas valve localization. China's valve manufacturing industry in the huge demand environment, will show better prospects for development.