Marine News

  What Is A Vacuum Valve? Vacuum valve  is a rubber or metal valve specially used to control and regulate the vacuum flow, mainly used to change the direction of the air flow, adjust the size of the gas flow, cut off or connect the vacuum system components of the pipeline. Vacuum valve  has the characteristics of good exhaust performance, preventing gas flow, improving system safety, etc., and is widely used in petrochemical industry, metallurgical machinery industry, nuclear industry and other fields. The vacuum valve also includes an electric high vacuum  butterfly valve , which drives the valve stem to drive the disc plate to realize the valve opening, closing or intermediate position control, so as to achieve the purpose of connecting or cutting off the air flow in the vacuum pipe. Some specific vessels will need to install a vacuum valve, and the ventilation piping system on a  liquid cargo ship  needs to install a vacuum valve as an automatic closing ...

  What Is A Safety Valve? Safety valve  is an automatic valve, usually installed on the pressure vessel, pipeline and other systems, used to release excessive pressure, to prevent system overpressure. When the pressure in the system exceeds the specified value, the safety valve will automatically open and discharge part of the fluid to reduce the pressure in the system. When the pressure in the system is reduced to a safe range, the  safety valve  will automatically close or remain open to maintain the normal pressure of the system. The role of the  safety valve  is that when the pressure inside the ship reaches a certain value, it can automatically open, release excessive pressure, and ensure the safety of the ship. Common Marine safety valve types include spring type safety valve, lever type safety valve and deadweight safety valve. When choosing  Marine safety valves , it is necessary to consider factors such as their applicability, reliability and ...

  What Is A Diverter Valve? Diverter valve   is a special automatic valve. It directs (or diverts) the flow of liquids or gases in a ship from one source to another. Diverter valves are commonly used when two separate but equally important components must interact to obtain optimal performance. Diverter valves  are designed to handle extreme operating pressures, temperatures and corrosive environments. In the Marine industry, the flow of fluids (such as fuel oil, lubricating oil, water, etc.) from one pipe is divided into two or more pipes to meet the needs of different equipment or systems of the ship. There is a difference between diverter valves and delivery valves. Diverter valves are used to transfer water from one water source to another. Air gap diverters,  check valves  and  pressure balancing valves  can all be counted as one of the categories of diverter valves. Besqo Marine offers a wide range of  Marine V alves . For more information, ...

  What Is A Pressure Reducing Valve? Pressure reducing valves  help ships by reducing incoming high-pressure water to a lower and safer pressure. They are usually installed on the main water pipe next to the   stop valve . ​ As water flows through the valve, it passes through the diaphragm connected to the spring and reduces the pressure to the desired level as the water flows through the other side of the valve. The pressure reducing valve can also be set to any desired downstream pressure within its design limits. Once the valve is set up, the decompression will remain the same despite changes in supply pressure and system load. Pressure reducing valves  protect Marine pipes and pipe fittings from rupture due to high water pressure. High water pressure can put pressure on pipes, causing them to break or damage pipe fittings, which can lead to leaks. Besqo Marine offers a wide range of  Marine V alves . For more information,   leave message  or send a...

  What Is A Throttle Valve? ​ Marine flange  bronze  throttle valve  is used for Marine seawater, fresh water and oil pipeline system throttle valve, by changing the throttling section to control the flow. Its structure is relatively simple, easy to manufacture and maintenance, low cost. Because the flow of the  throttle valve  not only depends on the size of the throttle area, but also related to the pressure difference before and after the throttle, the stiffness of the valve is small, so it is only suitable for occasions where the load change of the actuator is small and the speed stability requirement is not high. For the throttle speed control system with large load change and high speed stability requirement, the throttle valve must be compensated to keep the pressure difference before and after the throttle valve unchanged, so as to achieve the flow stability. The throttle valve has no negative flow feedback function and cannot compensate for the spe...

  What Is A Diaphragm Valve? A  diaphragm valve  consists of a flexible elastic diaphragm, a seat (weir/saddle) on which the diaphragm is positioned to close the valve, and a gland free body. Diaphragm valves are used to manage corrosive and abrasive liquids, suspensions, slurries and pulp without leakage. The main job of diaphragm valve is to control the flow of various fluids. These valves use rubber diaphragms to regulate liquid flow. The diaphragm vibrates up and down to restrict or allow fluid flow. Diaphragm valve is another name for diaphragm valve. Commonly used  diaphragm valves  are rubber lined diaphragm valves, fluorine lined diaphragm valves, unlined diaphragm valves, plastic diaphragm valves and so on. The diaphragm valve works by using the movement of the diaphragm to regulate the fluid passage. When the fluid passes through the valve, the fluid acts on the diaphragm in the valve body, causing it to displace, thereby isolating or opening the flow ...

  What Is A Stop Valve? Stop valve  is a valve used to stop the flow of liquid or gas in a system. It is usually installed at the end of a pipe or section of pipe. Shut-off valves are commonly used in household plumbing systems to turn off the water supply to fixtures such as sinks or toilets. As the two most common types of valves, what is the difference between  gate valves  and  stop valve ? Gate valves are used to control the flow of liquids and gases. They are commonly used in piping systems to regulate the flow of water or other fluids. On the other hand, stop valves are used to cut off the flow of liquids or gases. They are often used to quickly cut off the flow of material in an emergency. Globe valves can be used in high and low pressure applications and are relatively inexpensive. The globe valve has relatively few moving parts, and its maintenance costs are also relatively small. Besqo Marine offers a wide range of  Marine V alves . For more info...

  What Is A Storm Valve? The  storm valve  is a swing check valve with a closing device. The closing device is usually a hand wheel, but can also be actuated. The storm valve  can be installed in the sanitary plumbing system of the ship, the storm valve is usually installed in the sanitary plumbing system of the ship, which has a side outlet. They prevent seawater from entering the system during rough waves. It can also be installed on the deck and can be closed to prevent water from entering through openings such as vents, pipes or hatches. This helps prevent the vessel from taking on water and potentially causing damage or instability. The storm valve  has two openings where fluid flows in through the inlet and out through the outlet. The valve has a flap inside which is connected to a counterweight and a locking block. A locking block is a valve component controlled and operated by an external hand wheel or actuator. The purpose of the locking block is to hol...

  What Is A Plug Valve? Plug Valve  is a closing or plunger-shaped rotary valve, which is opened or closed by rotating 90 degrees so that the passageway on the plug is connected with or separated from the passageway on the valve body. The shape of the  plug valv e  can be cylindrical or conical. In the cylindrical valve plug, the channel is generally rectangular; In a tapered valve plug, the channel is trapezoid. These shapes make the construction of the plug valve lightweight. It is most suitable as a cutting and switching medium and a shunt application, but depending on the nature of the application and the erosion resistance of the sealing surface, it can sometimes be used for throttling. The plug body of the  plug valve  rotates with the valve stem to realize the opening and closing action. The small unpacked plug valve is also called "cock". The plug valve is one of the earliest valves used, with simple structure, fast switching and small fluid resista...

  Quick Closing Valve Series ​ The  Quick  closing valve  is usually faster than the conventional valve in its closing speed, so it is called the  Quick  closing valve . The closing speed of the  quick closing valve  can be adjusted and controlled in a variety of ways, such as by changing the preload force of the spring, changing the fluid pressure, or changing the structure of the valve. In some cases, quick-closing valves can also be opened quickly to meet specific fluid control needs. In addition to the automatic closing function, the  quick closing valve  has some other features, such as good sealing performance, corrosion resistance and wear resistance. These characteristics make the quick-closing valve maintain better performance and longer service life during use. Besqo Marine offers a wide range of  Marine V alves . For more information,   leave message  or send an email to  sales@besqo.com .

  What Is A Needle Valve? The valve plug of the  needle valve  is needle-like, and the seal between the valve stem and the seat is realized through the bellows, which can move along the direction of the water flow and change the area of the flow break, so as to adjust the flow rate. Needle valve has the advantages of high adjustment precision, good wear resistance, simple structure and flexible operation. Due to its special structure and working principle, the needle valve has a good linear adjustment ability and can fine-adjust the flow rate in a small range. Needle valve  seats are usually made of soft materials, such as tin, copper, etc., to ensure sealing performance. The seal between the stem and the seat is achieved by bellows. When regulating the flow, the control needle is gradually inserted or withdrawn from the seat by rotating the valve stem to control the flow of the fluid. The valve is needle-shaped and moves along the flow direction to change the flow a...

  What Is A Hand Valve? Hand Valve  is a valve that requires manual intervention to achieve on-off control. It can change the flow direction or size of the fluid in the pipeline, and has the functions of diversion, cut-off, regulation, throttling, check, shunt or overflow relief. It is an important fluid control element. The working principle of  Hand Valve s  is usually to operate the valve opening and closing by mechanical means such as rotation or lever. When the valve is open, fluid can flow through the valve; When the valve is closed, the fluid is prevented from flowing. According to the needs of specific applications,  Hand Valve s can be operated in a variety of ways, such as hand wheels, handles, levers, sprockets, etc. There are many kinds of  Hand Valve s, which can be divided into  ball valves ,  plug valves ,  butterfly valves ,  hand wheel valves, etc. Each valve has its own unique characteristics and applications, such as b...