Retrospective 176, the call of a 30-year-old player
Based on your question about the operation of stainless steel pressure reduction valves, i understand that you might be interested in receiving information on the principles of operation of stainless steel pressure reduction valves, on their daily maintenance or on their safe use. Below is a description of the reference。
The stainless steel pressure relief valve is a key control component of the fluid delivery system and is used primarily to stabilize the import of high pressure media (e. G. Steam, air, gas, etc.) within the defined export pressure range。
Rationale
The stainless steel pressure relief valves are divided into two main types of thioperidium and thioperidium。
directly motion-reducing valves: control the opening of the valves and regulate the pressure on exports by adjusting the pre-repressure of the springs through the spin button, changing the position of the film and the core of the valves. When import pressure fluctuates, membranes react to changes in pressure and drive the core movement, automatically maintaining stable export pressure。
Pyramid-guided pressure-reducing valves: for high output pressure or greater diameter. It uses lead valves (small valves) to control the opening of the main valve, which is driven by the pressure of the lead valve output, thus controlling more precisely the export pressure of the main valves。
Install and run points
In order to ensure the proper operation of the pressure reduction valves, the following points need to be noted for installation and operation:
Pyramid emitter: the arrow direction on the valve must be consistent with the flow of the medium。
过滤 过滤 过滤 过滤 过滤 过滤 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。
Safety measures: pressure meters and safe dispersing valves should be installed at the end of the exit to monitor and secure the system。
Pyramid rinsing: newly constructed or modified pressure-relief systems should be washed with water prior to delivery to remove impurities from pipes and avoid damage to valve cores。
Daily maintenance and inspection
Regular maintenance is the key to ensuring the long-term stable operation of the pressure reduction valve。
Appearance inspection: periodic cleaning of the surface of the valve, examination of whether the valve, the valve cap, and the french components have cracks, deformations or damage, and whether the connection bolts are loosed。
Seal sealing: checks for leakages in the sealed part of the valve pole and the french connection, which can be detected using leaks (e. G. Soap water)。
Internal leak inspection: for cut-off valves, valves, etc., the integrity of the internal seal can be judged by observing the flow of media downstream after the valve is closed。
过滤 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。
Safe use hint
Safe use is particularly important in situations such as domestic gas:
(b) the correct installation of the thorium: when the pressure-relief valve is installed, the main wire button is applied and the wheel rotates in the reverse direction (in the direction of a counter-clockwise) until it is tightened. Once installed, the valves shall be softly moved to confirm that there is no relaxation。
Periodical check of the glyphs: care is taken to check the ageing and bending of the connections and to replace them in a timely manner in order to eliminate the hazards。
