These valves are designed for pressure drops as high as 200 bar.The Multistage Valve design integrates the advantages of a High Pressure Stop Valve Design and the Reliability of a High Pressure Reduction Valve. The Valve has a replaceable seat bush with stellite deposition at the seat. Slots in the seat bush and control plug are designed such that the spindle is guided throughout its travel by the seat bush eliminating the harmful effects of vibratio
Forbes Marshall spring loaded disc check valves offer a tight shutoff and are available in a large range of sizes. These valves are compact in design as compared to the conventional swing and lift type of disc check valves. They can be easily mounted in between flanges in any direction. These valves are compatible with both PN and ANSI flanges.
Ball Valve - Valve with Ball shaped disk to stop or start flowA ball valve is a quarter-turn rotational motion valve that uses a ball-shaped disk to stop or start flow. If the valve is opened, the ball rotates to a point where the hole through the ball is in line with the valve body inlet and outlet. If the valve is closed, the ball is rotated so that the hole is perpendicular to the flow openings of the valve body and the flow is stopped.
The trap body is normally filled up with condensate to maintain a seal water around the inverted bucket. Live steam enters the bucket, floats it, to close the valve. Steam leaks through a small hole in the top of bucket, and opens the valve to discharge condensate. Some inverted bucket traps are fitted with an auxiliary bimetallic air vent.
that can offer a comprehensive variety of valves for high pressure and high temperature applications for various sectors such as Power Plants, Oil and Gas, Chemicals, Petrochemicals, Paper, Sugar and Steel.
FeatureSelf-cleaning and self-lubricating , Asbestos free manufacturing
Energy Audits carried out by us at a large number of process plants reveal that in a typical 5 years old plant, over 30% of isolation valves leak. Valve glands and seats are the typical locations where leaking initiates. Forbes Marshall piston valves are glandless isolation valves which offer leak-proof sealing. A burnished piston seals against SS reinforced graphite rings to achieve a leak proof class VI shutoff.
It maintains upstream pressure at constant. This feature is very useful in maintaining the flow characteristics of sample flowing to the analysers. One of the important requirements of sampling system design is the sample flow regulation. Back pressure regulator ensures priority flow to all the analysers and maintains the flow characteristics of sample at constant level.
This gas comes out in a vacuum condition from the top of the reactor. Due to the vacuum, sometimes few solid particles of ethyl glycol paste also flows with the gas. These solid particles tend to stick inside the valve body and to the seat area due to which the flow inside the valve gets stuck. To covert these sticky paste particles into a gaseous form and to keep the valve flow path continuously clean, the valve is heated by passing the high temperature thermic fluid through the jacket.