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| About Indu-Tech Enterprises Ltd: | |
| indu-tech was given the task of assessing the applications and coordinating an outline of the design parameters of an isolation valve for the mill. It was a primary objective from the outset to design a true “Isolation Valve” that encompassed the solutions to all the problems associated with the level transmitter isolation. The main criteria for the valve design was focused around a simplified on/off control, a thin cross section to maintain close process to transmitter distance, purge capability and compact size. A valve feature that has evolved but not part of the initial plan was the capability of level transmitter calibration on the tank. Indu-5-1-about_07 The Valve Continued to Evolve The valve continued to evolve with regards to the issue of clogging up of the line. Transmitter calibration during normal hours of operation was also addressed. A swirl purge was incorporated to provide the capability of cleaning the process line between the tank and the transmitter. This feature was a key design parameter as it allows the instrument technicians to immediately flush the process and plan the cleaning of the tank during regular scheduled maintenance days versus taking the process off line, which is not always a feasible option. A test pump can be applied to the instrument side purge port and the transmitter can be re-calibrated with the valve in the closed position. This feature is in big demand in mills that run a calibration program within ISO Certification on a regular basis. Read more about the features of the indu-tech Isolation Valve. indu-tech valves operate in the toughest applications including: Pulp and Paper, Steam Plants, Oil and Gas, Petrochemical, Chemical, Food and Beverage, Pharmaceutical and Waste Water Treatment. indu-tech believes in a strong customer relationship when solving technical and component problems and continues to work closely with our customers to ensure innovative designs that help solve their problems. It’s such a basic issue and yet it can cause huge operational and maintenance issues as well as create costly process upset and product losses. All this results in lost revenue and safety concerns. The issue is; how do we effectively measure tank levels while being able to isolate the level sensor effectively and protect personnel? For many years, industrial valve manufacturers have addressed instrument isolation with many variations of knife-gate, ball and wedge-gate valves with marginal success. The challenge has been to provide instrument isolation in order to periodically calibrate the level transmitter while creating a bubble tight seal. Often the valves did not provide Bubble tight sealing and thus the transmitter could not be removed due to safety issues. This meant that the tank would have to be drained in order to remove the transmitter. What to do with all that product? A second issue arose when the instruments allowed in-situ field calibration. The tank nozzle and transmitter were plugged with the process fluids and thus purging was necessary. Add valve leakage and the result was that the instrument technician could not successfully calibrate the device. Level transmitter Pressure Transmitters such as these are typical in applications where the vessels store slurries or solids laden products. The face (diaphragm) must be kept clear of product when calibration is being performed. The indu-tech valve addresses all of the above concerns as follows; Bubble tight shut-off (Isolation and Safety) Custom flange bolt configuration that accommodates both tank nozzle and Transmitter bolt patterns Permits removal of the Transmitter if required Equipped with purge ports on instrument and process sides of valve thus allowing cleaning of the nozzle and instrument Full ANSI rated , 150,300, 600 PSI rated Metallurgies to suit the process application (Titanium, Hastelloy, Stainless Steels) Wafer Ball Valve with “Blow-out proof” Stem |
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