Thermostatic valve factory to introduce: pipeline valve installed next
according to the working principle of steam trap is different, can be turned into the following three types:mechanical type: rely on steam trap with the changing of water level in the action, including: the ball float, float for a closed hollow sphere. Exposure to float upward: float for opening up the bucket. Exposure to downward float type: float down with the bucket. Hot static type: depend on the liquid temperature change and action, including: bimetallic strip: sensitive element for bimetallic strip. Steam pressure type: sensitive element for corrugated tube or cartridge, internal filling the volatile liquid. Thermodynamic model: depend on the change of the thermal dynamic properties of the liquid and action. Disc type: because be in the same pressure, liquid and gas flow rate, produced by the different dynamic, static pressure and driving disc valve action. Impulse type: due to the different temperature of the condensate through the poles string throttling orifice plate, will in different pressure between the polar orifice plate, drive disc movement. The installation of a drain valve 1. To set up the block valves (both before and after Globe valve) , trap and the former block valve should be set between the filter, in order to prevent dirt clogging of the condensate trap. 2. Between trap and the block valves shall be set to check, to check whether the drain valve work normally, such as open check tube lots of steam and then trap is broken, need to repair. 3. Set the by-pass pipe is in order to when it starts to discharge a lot of water, reduce the steam trap the displacement of the load. 4. When used to heat equipment of the condensate trap ruled out, should be installed at the bottom of the heat equipment, the condenser under vertical return access hydrophobic, in case of using hot water equipment. 5. Installation position should be close to the drainage points, if the distance is too far away, in front of the trap slender pipe will be stored up in the air or steam. 6. When in the level of main steam line is too long, should consider the hydrophobic. The installation of safety valve relief valve is open-close part under the action of external force in a normally closed state, when the equipment or piping within the medium pressure than specified value, through a discharge medium system to prevent the pipeline or equipment within the medium pressure in excess of the prescribed special valves.
the relief valve belong to automatic valve class, mainly used in boilers, pressure vessels and piping, control pressure shall not exceed the specified value, to protect personal safety and equipment operation plays an important role. Note the relief valve must pass through pressure test to use.1。 Before installation should be carried out on product check carefully and verify whether there is a certificate of approval and the product specifications, in order to make clear the constant pressure of the factory. 2. The relief valve shall be arranged near the platform, as far as possible in order to check and repair. 3. The relief valve should be installed vertically, should make the medium flow from the bottom up, and want to check the verticality of the stem. 4. In general, the relief valve cannot set before and after the block valve, to ensure safe and reliable. 5. Pressure relief valve: when the medium is liquid, typically into a pipe or an airtight system; When the medium is gas, the general to the outdoor atmosphere; 6. Oil and gas medium can generally be exhaust air, the relief vent pipe exports should be higher than the highest structures around 3 m, but the following should be no one closed system, to ensure safety. 7. Population of pipe diameter, the minimum should be equal to the valve inlet pipe diameter; Discharge pipe diameter shall not be less than the valve outlet diameter, discharge pipe should lead to the outdoor, with bent pipe installation, the pipe exports toward safety. 8. Relief valve installation, when the relief valve and the equipment and pipeline connection for the opening, when welding the hole diameter should be the same as the nominal diameter of the relief valve.