Why Open the Cylinder Valve First and then the Pressure Reducing Valve for High-pressure Gas Cylinde

Oxygen bottles are often seen in hospitals. Many people may not understand the method of using this kind of oxygen bottle at all, because it is very important to open what first and then what. Once opened incorrectly, it may cause oxygen leakage, cause serious waste, and may also cause potential safety hazards. Why open the cylinder valve first and then the pressure reducing valve for high-pressure oxygen cylinder? How to use the pressure reducing valve for high-pressure oxygen cylinder is described below.

Why do high-pressure cylinders open the cylinder valve first and then the pressure reducing valve

The purpose of opening the cylinder valve before the pressure reducing valve for high-pressure gas cylinder is to reduce the impact on the pressure reducing valve and improve the service life of the pressure reducing valve.

How to use the pressure reducing valve of high pressure oxygen cylinder

1. When deflating the oxygen cylinder or opening the pressure reducing valve, the action must be slow. If the opening speed of the valve is too fast, the temperature of the gas in the working part of the pressure reducing valve will be greatly increased due to adiabatic compression. In this way, parts made of organic materials such as rubber filler and rubber film fibrous gasket may be burned out on fire, and the pressure reducing valve can be completely burned out. In addition, the electrostatic spark generated by too fast venting and the oil stain of the pressure reducing valve will also cause fire and burn the parts of the pressure reducing valve.

2. Before installing the pressure reducing valve, slightly open the valve of the oxygen cylinder and blow away the dirt to prevent dust and moisture from entering the pressure reducing valve. When opening the cylinder valve, the gas outlet of the cylinder valve shall not be aligned with the operator or others to prevent high-pressure gas from suddenly rushing out and hurting people. The joint between the air outlet of the pressure reducing valve and the gas rubber pipe must be tightened with annealed iron wire or clamp; Prevent danger of disconnection after air supply.

3. When loading and unloading the pressure reducing valve, attention must be paid to prevent thread slippage of the pipe joint, so as to avoid shooting due to loose screw installation. Pay attention to the pressure value of the working pressure gauge during operation. When stopping work, loosen the pressure regulating screw of the pressure reducing valve first, then close the oxygen cylinder valve, and slowly discharge the gas in the pressure reducing valve, so as to protect the spring and pressure reducing valve from damage. After the work, remove the pressure reducing valve from the gas cylinder and keep it properly.

4. The pressure reducing valve must be calibrated and repaired regularly, and the pressure gauge must be inspected regularly. This is to ensure the reliability of pressure regulation and the accuracy of pressure gauge reading. If the pressure reducing valve is frozen during use, thaw it with hot water or steam, and never bake it with flame or red iron. After the pressure reducing valve is heated, the residual water must be blown off; It must be kept clean, and the pressure reducing valves and pressure gauges of various gases shall not be replaced.

Why do high-pressure cylinders open the cylinder valve first and then the pressure reducing valve? How to use the pressure reducing valve of high-pressure oxygen cylinders? Through the text introduction made above, we should have understood the use methods of high-pressure cylinders. When the oxygen bottle is used, it should be operated according to the standard steps, so that the patient can absorb oxygen smoothly and use the oxygen bottle safely.

Why Open the Cylinder Valve First and then the Pressure Reducing Valve for High-pressure Gas Cylinde 1

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The Financial Fix
While the financial sector keeps slowly dragging the rest of us over the cliff, it's clear that our understanding of what must be done has greatly evolved in a short period of time.This past weekend, both the Times ( Joe Nocera ) and the Post ( guest editorial by Matt Richardson and Nouriel Roubini ) published very cogent arguments for a plan for nationalizing the large, insolvent banks, giving even Republicans such as Lindsey Graham a reason to pause and consider that option.That's progress. Yet since Treasury Secretary Geithner's has yet to clarify the administration's plan, a lot still remains up in the air.Wall Street is starting to pressure the Obama administration to relax its proposal for a stringent review of the banks' books.Any indication that administration agrees would be bad news, because that's exactly what needs to be done first -- by now it's clear that whatever the thousands of lobbyists who work for Wall St. propose, we could probably do a lot worse than react by simply doing the opposite.Ultimately, the onus will fall upon President Obama. His ability to stand up to one of the most powerful industries in the country is crucial. The consequences are so huge and stakes are so high that it could literally make or break his entire presidency.Let's hope he will remember what he told an audience at Cooper Union back in May, when he talked about his position on regulating finance: "The future cannot be shaped by the best-connected lobbyists with the best record of raising money for campaigns...The details of regulatory reform should be developed through sound analysis and public debate." All sorts of prominent economists from the IMF to Joseph Stiglitz are pushing for nationalizing insolvent banks sooner rather than later. Obama and Geithner have to be paying attention. Expecially since these voices have laid out in careful terms a practical course of action.Richardson and Roubini, for example, suggest that the first thing Treasury needs to do is require that the banks undergo "stress tests" before any are deemed eligible to be treated under the rest of the plan.(Although there won't be time to do a granular analysis of the books, I hope the banks are forced to disclose all of their offshore accounts and derivatives positions and other so-called "toxic" assets).If that happens, some of the banks will most likely be revealed as insolvent -- after all, if they don't have anything to hide, then why lobby so strenuously against a tough review?Those insolvent banks, the economists say, would need to be put into receivership (perhaps under the FDIC's supervision). Perhaps they need to be broken up. Perhaps not. Maybe some will need to be restructured under the supervision of a corporate monitor, the way that WorldCom was supervised by former SEC chair Richard Breeden before it was allowed to emerge from bankruptcy (btw, that was one of the first cases where a CEO pay cap was instituted under Breeden's supervision, albeit it was pretty weak). Others will be broken apart, with the valuable assets sold off and the toxic assets piled up in an aggregator bank, the way the FDIC took all the insolvent savings and loans.If we follow this process and aggregate the toxic assets in one place, there should be less need to cave into the pressure created by the private equity, hedge funds and other vultures to provide them with unnecessary taxpayer-funded financial assistance or a guarantee to cover any losses. We shouldn't have to rush into a fire sale that allows them to run off with valuable assets on the cheap.(As candidate Obama said at Cooper Union back in May, "a free market was never meant to be a free license to take whatever you can get, however you can get it.") The Wall St. banks and the hedge funds can all be expected to try to rush this process. Confusion works could work in their favor, and they would not be wrong to suggest that the longer the process drags out, the longer the credit system will stay frozen. Thus, they can be expected to try to take advantage of the growing pain in the real economy to put more pressure on Washington.Which is why they need a pressure relief valve for Main St. -- i.e. things that stop foreclosures and set up other lifelines. The stimulus will do some of that, and there will have to be more.Ultimately, the simple fact is that if the Obama administration doesn't organize this process in a rational way that allows it to determine which banks are salvageable and which are insolvent and therefore in need of a full government takeover, it will easily cost us hundreds of billions (trillions?) more than it should have to, as we throw more good money after bad.An orderly transition is necessary not only to protect taxpayers, but to guarantee that investors will want to come back into our markets.
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