。 Basis for spring safety valve open began to work as a special nature, can be concluded that: strength under the utility of FW, a safety valve from closed to open, in the whole process from open to closed again, attached with outside force change law of FW, when attached to add force increased from zero step by step, and the pressure within the PL * S happened to the sum of spring pre-tightening force, valve tiny qi, increase the size of the medium utility plane or surface S, get used to overcome the spring pre-tightening force of the pressure inside the utility strength increases rapidly, the final results in reduced the outside the supplementary and force moments. The above two characteristics marked peak point A and B is online testing under the condition of the relief valve opening pressure, back pressure technology based on. Reduced gradually when attached with outside force to shut down, because the size of the medium utility plane or surface suddenly decreases, and to maintain the force equilibrium relationship, at this point, the outer side and force will manifest the moments rebound phenomenon, namely the second signal peak point B. During normal operation, the downward pressure on the spring force is greater than the steam of thrust, the valve is in closed condition. Q: office the original analytical answer: spring safety valve spring safety valve is to rely on the spring strength will be pressure on the valve seat valve core, make the relief valve in the closed state, the valve core Marine Industrial Valves under steam aspirant jacking force. So was the first characteristic peak A sign. When the steam pressure to the pressure of the relief valve, steam for the effectiveness of the effectiveness of valve core strength is greater than the spring strength, make the top of the valve core, the exhaust steam of the relief valve. Change after the upper stem of the adjustable screw spring of elastic, debugging of pressure relief valve. The striped tube safety valve adjustment is convenient, small size and weight, exhaust steam experienced great strengths, such as suitable for use in different depending on a parameter and different volume of the boiler. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball valve, butterfly valve, gate valve, globe valve, check valve, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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