Carly Wood Valves April 20th, 2019 - 12:41:29
Within a manual operated rubber valve, there are three basic design components; the body, disc and cover. With a specialized rubber casing, the valve offers, to all intents and purposes, a service to users that is maintenance free without distortion of the valve disc and seat. If compared to conventional check valves, a manual rubber valve will be found to operate for longer periods with minimal downtime.
With the rapid development of different industries such as modern nuclear, petrochemical, electric and space, automatic control for process technology and long-distance fluid transportation, a lot of modern low-temperature valve, vacuum valve and control valve are in great need. So in order to ensure the good sealability and suitable strength of the above-mentioned valves, to develop new materials will be a great challenge. As it should be, just to improve the sealing ability and strength for future valves is not enough. It is suggested that the manufactures should expand other parameters of the valve and develop energy-saving, automatic and multi-functional valves, such as low-temperature one used for liquid oxygen, hydrogen or natural gas, vacuum valve, safe valve and so on
Among the many types of Valves manufactured by Swagelok, are Ball Valves - these are used where flow needs to be completely shut-off. They have advantages over many other types of Valves in that they are easy to use, easy to maintain, and can regulate high-pressure, high-volume and high flow of temperature. They are uncomplicated, sturdy, and inexpensive; they lend themselves to a long service life. Swagelok has a full catalogue of various types of Ball Valves. For all the advantages of Ball Valves, they are not suitable for use where fine control of a Valve is needed. Depending on system requirements, in these circumstances, a Needle Valve may be appropriate - these allow for a range of flow, and can control flow into delicate gauges where sudden surges of pressurized fluid can cause damage. They can also be used where flow must be precisely and gradually brought to a halt. Needle Valves are not suitable for simple shut-off applications as are Ball Valves - they should be used where a small rate of flow is required.
There are many types of ball valves that are extensively used in various industries depending upon their designs, sizes and pressure handling capacities. Full port, reduced port, cavity filler, V port, trunnion ball valves and multiport valves are the common ones.
According to particular designs, this valve is separated into various groups. The most popular valves are the solid wedge valve and flexible wedge. There are various kinds of bendable wedge valve that uses double disc parts that are bendable. The most common and widely utilized flexible wedge valve is the parallel side valve. Valves such as these are highly utilized in stem systems because it can endure contraction and expansion in the ever-changing climate conditions.
There are three kinds of this valve. There is a valve that is high in performance, which is reliable in functioning under higher pressure that can withstand as high as 725 PSI and temperature applications. Next is the resilient valve, it has an elastic rubber seat and could work up to the pressure of 232 PSI. Lastly, the tricentric valve that is commonly adorned with a seating made of metal and it can function up to the pressure of 1450 PSI.