Bellow Seal Valve - Carbon Steel & Stainless Steel Body With Imported German Bellows | Zero Leak Design For Hazardous Fluids

Bellow Seal Valve

Further Details

Traditionally the valves used on various fluids in industries are Globe/Gate/Ball/Plug/Butterfly valves. Any of these valves will have a seat and a spindle for closing and opening action. The spindle extends beyond the seating area for actuation. Glands and gland packings are used to ensure proper sealing of the valve internals and prevent leakage. In spite of taking all precautions, valve leakages have become so common that people, at times, have 2/3 valves in series hoping that if one fails, the other will hold.

Valve leakage can be either through the seat, when the fluid flows across the seat even when the valve is tightly closed. This happens because of erosion effects on the contact surfaces. Some physical dirt particles may also prevent tight shut-offs. The other possible leakage will be from the valve internal area to atmosphere leading to visible leakages.

For certain critical applications leakages to atmosphere can not be tolerated. The fluids on which valves are to be used are usually hazardous, inflammable or sublime in nature to take steps for zero leaks. The bellows design and MOC will depend on the fluid to be handled. UKL Bellow Seal Valves are made with imported German bellows, the world leaders in bellows manufacturing, with tough cycle testing methods.