Application with high temperature sulfur for an important company in the energy sector

Medium:
Sulfur is an element with a particular behavior: melts at 119 ° C degrees of temperature, forming a light yellow liquid that, when the temperature increases, makes darker and viscous ; at approximately 200 ° C it becomes black and pasty and at even higher temperatures it returns to its liquid form .

Challenge:
In industrial applications it is important to keep it in a temperature range that guarantees its fluidity . Today the industry is focused on developing more efficient and less expensive H2S separation processes and new uses of sulfur to include them in products with greater added value.

Solution:
This is an application for our KTN WSJ valve, compact wafer construction with heating jacket to keep the temperature stable. An added value are our Pentafite seats that are capable of withstanding continuous temperatures from -100 ° C to + 720 ° C. Ball with HTC coating (left image), a special material based on titanium nitride, guarantees high hardness and non-stick characteristics to avoid the anchoring of sulfur deposits.

Application in the bilge of a ship with fire protection requirements

Area:
The bilge is the space of a boat, located in the lowest part of the engine room, just above the double bottoms. Its task is to collect all discharges of non-transported liquids from small losses in pipes, joints or pumps resulting from normal operation in the power plant. The bilge waters are purified in oily matter separators and are expelled outside. Upon arrival at the port, the polluting parts that remain on board are removed at the port for treatment and disposa

Challenge:
Lloyd’s Register + 100A1 rules and regulations for SSC require that the valve in the bilge area must not contain materials that can be altered by a possible fire already that it is an area with fuel with risk of fire and solid presence .

Solution:
Perfect application for the KTN WSS model with #Pentafite seats, which allows to keep the operating torques 40% lower than any other metal seat. The wafer construction minimizes weight , an important aspect in a boat, while the technical construction with expanded graphite seals guarantees tightness in line and towards the outside , even in case of fire.

Application in nuclear power plant

Area:
The air filtration system is in charge of protecting plant employees, the population and the environment in general from radioactive particles and gases originating in The reactor is a complex and extensive area where the air is regulated, each part that integrates it has been tested in numerous and strict tests .

Challenge:
The valves are intended for a filtration system within nuclear power plants that must allow a high pressure and jet velocity of radioactive CO2 at 400 ° C . The design pressure is 5.3 Mpa , but the main problem is the running time, which must be very low .

Solution:
Thanks to the self-lubricating metal seats specific PENTAFITE and the special sliding bushes for the ball trunnions, we were able to supply DN 3 “ANSI valves 600 with 0.9 seconds of 180 ° run time (close-open-close) and DN 12 “ANSI 600 valves with less than 3 seconds of 180 ° run time.

The low coefficient of friction of the PENTAFITE self-lubricating material , which allows a 40% reduction in operating torques compared to other common carbide surface-coated seats and balls, made it possible to withstand the high sliding speeds . At the moment, the valves are still in service without maintenance and with no reported problems.