Valve accessories ammonia in ammonia ball valve has a long service life and maintenance free, it relies on is to keep the normal working conditions, harmony of temperature or pressure ratio and reasonable corrosion data.The valve parts are closed and there will still be pressurized fluid inside the valve body.It should pay attention to the following aspects in actual maintenance and maintenance.
When the ammonia gas ball valve in the valve accessories is used and repaired, first of all, it should be paid attention to relieve the pipeline pressure, so that the valve is in the open position.Pay attention to disconnecting power source or gas source;Separate the actuator from the scaffold.
The ammonia gas ball valve in the valve accessories should be found out that the ball valve and the downstream pipeline have removed the pressure before the disassembly and disassembly operation can be carried out after the pressure is removed.When decomposing and reassembling, be sure to be careful to prevent the sealing surface of damaged parts, especially non-metal parts, and use special tools in order to remove the o-ring.
When the ammonia gas ball valve in the valve accessories is assembled, the bolts on the flange must be carefully and evenly tightened.The cleaning agent should be compatible with the rubber parts, plastic parts, metal parts and working medium (such as gas) in the valve accessories.When the working medium is gas, use gasoline (gb484-89) to clean metal parts.For non-metallic parts in valve accessories, choose pure water or alcohol for cleaning.
The non-metallic parts in the valve accessories should be removed from the cleaning agent immediately after cleaning, and cannot be soaked for a long time.Need to wait for after wash wall detergent volatile (or not soak cleaner silk cloth to wipe) are assembled, but can not put on hold for a long time, otherwise the valve accessories will appear the phenomenon of rust or dust pollution.http://www.dmgcastings.com/