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Contact:Miss Cheng

Address:No. 6, No. 18 Zhongtai science and Technology Park, No. A02, Huayuan Road, Garden Road, Baohe Economic Development Zone, Hefei

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Bright Spots of Marine Y-type Globe Valve

Marine Y-type globe valve belongs to the forced closed marine valve, so when the marine valve closes, it is necessary to increase the pressure on the disc to force the tight seal to keep the closed surface from leaking. When the medium enters the marine valve from below the disc, the resistance that the operation force needs to overcome. Marine Y-type globe valve is the friction force between the stem and packing and the thrust force generated by the medium pressure. The force of closing the marine valve is greater than that of opening the marine valve, so the diameter of the stem is larger, otherwise the stem crown will occur. Marine Y-type globe valves can be divided into three types according to the form of joint deployment: flange joint deployment, wire joint deployment and welding joint deployment.
In recent years, after the emergence of self-tightly sealed marine valves, the medium flow direction of Y-type marine globe valves has changed from above the disc to enter the valve chamber. Under the effect of medium pressure, the force of closing the marine valves is small, while the force of opening the marine valves is large, and the diameter of the stem can be reduced accordingly. At the same time, under the media effect, the marine Y-type globe valve is also tighter. Our country's marine valves & ldquo; Sanhua feed & rdquo; once stipulated that the flow direction of marine globe valves, one case considered it appropriate to use top-down. When the Y-type globe valve is opened, the opening height of the disc is 25% to 30% of the nominal diameter, and the flow rate reaches the maximum, indicating that the marine valve has reached the position of the whole sheet of paper. Therefore, the position of the whole sheet of paper of the marine globe valve should be determined by the stroke of the disc.
I. Brief Analysis of Benefits of Stainless Steel Marine Globe Valves with Low Input and Override
Common domestic Y-type globe valves and departmental import valves are low entry and override, so there is a benefit in this application, that is, high pressure or high temperature at the common import end, when closing the marine globe valve, the outlet end can be emptied, so it is easy to change the filling of the marine globe valve. If the marine Y-type globe valve is high in and low in, such as There is a leak in the packing. It may be easy to repair. Marine globe valves cover spotted pipe marine globe valves, socket welded marine globe valves, high temperature and high pressure marine globe valves, etc. If the valve is misfitted as high in and low out, it will oscillate in long open condition, so it must be changed. However, some marine valves such as Wuxi tooling are high in and low out. Marine Y-type globe valves are so designed to be tightly sealed and tightly sealed. In the case of high pressure, marine valves are also guided to cause high entry and low exit, in order to seal tightly. Flow direction is related to the installation form of marine globe valve head, but also has high-in and low-out, usually high-pressure side media to hold the valve head, to avoid valve head peeling.
II. Installation Rules of Marine Y-type Globe Valve and Introduction of Its Unique Places
The normal property of Y-type marine globe valve will affect its performance and service life if it is reversed, or it will not be effective at all, even dangerous. Marine Y-type globe valves are marked with installation standard in the body. They are operated according to the knowledge rules of installation. If the installation of Guze is not marked above, they are installed according to the acquiescent installation rules. Special cases can be installed in reverse. Ordinary domestic stainless steel marine globe valves are designed according to the low-entry override preset. There is a good advantage in this way. The local pressure of the general media is relatively high or the temperature is relatively high. When the Y-type marine globe valve closes, the extra side can absolutely expel the media. Easy and complete sorting out the legacy media at the time of maintenance.
3. Marine Y-type globe valve is a kind of marine globe valve
Up to now, stainless steel marine globe valves have been widely used in chemical industry, fuel, medical medicine, ship, aerospace and other industries. Stainless steel marine globe valves are divided into manual, pneumatic and electric. Different stainless steel marine globe valves have different operating power. What are the unique features of Y-type marine globe valves? Let's introduce the unique features of stainless steel marine globe valves.
1. Marine Y-type globe valve has simple structure, simple manufacturing process and low cost.
2. Stainless steel marine globe valves have good wear resistance, good tightness and long service life.
3. When opening and closing, the disc of marine Y-type globe valve has small stroke, saves time and has high office speed.
4. Marine Y-type globe valve is made of high-quality stainless steel material, which has good corrosion resistance and long service life.
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Contact:Miss Cheng
Telephones:86-13524555517  
Address:No. 6, No. 18 Zhongtai science and Technology Park, No. A02, Huayuan Road, Garden Road, Baohe Economic Development Zone, Hefei
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