Biggest valve industry affair under one roof

1. THE BIGGEST VALVE INDUSTRY AFFAIR UNDER ONE ROOF The Valve World Expo is the biggest ground to showcase and encounter the experts from the valve industries around the world. It is a one-stop shop that will assemble many great minds and act as a platform to meet proficient valve industrialists who will display their products at a large scale. It is a substantial interactive platform that focuses on individual communication. Valve World Expo brings together valve expertise from the: ● Oil, Gas, Petrochemical, and Chemical Industry ● Food Processing Industry ● Marine and Offshore Industry ● Water and Waste Water Management Industry ● Automotive and Machine Construction Industry ● Pharmaceutical Industry ● Power Generation Industry The Valve World Expo is undoubtedly the most prestigious event for anyone who uses valve technology in their business. Harkesh Rubber has been serving the valve needs for all kinds of engineering industries for the past 35 years. Our services employ a combination of well-established product mastery and ingenious engineering. What makes us idiosyncratic are the custom-made solutions we provide with optimum quality service. We, at Harkesh Rubber, are experienced at fulfilling the technical merchandise requirements for multiple industries within strict timelines. With a reputation for excellence around the world, we have served clients in Asia, Europe, the Middle East, the USA and many other countries.

2. We provide expert solutions for: Rubber Diaphragms The Rubber Diaphragm is a multifaceted tool that is used as a sealing agent between two elements. It has a huge demand in industries like power generation, aerospace, chemical and process, and more. O-Rings O-Rings have a variety of purposes in different application areas. They are used to stop the air from passing between the two ends. They are available in various metric and inch standard sizes. O-Rings are commonly used for plumbing purposes, automobile requirements, air-conditioning technology, and more. Seals The seal is used in rotary shaft equipment to keep dust, dirt, oil or any other contaminants out while keeping it lubricated. The sealing element, the metal case, and the spring are what form the oil seal. Gaskets We are well-renowned for the production of custom-made rubber gaskets. They are used to prevent leakage between two articles under compression. These gaskets are made to withstand and handle extreme pressure and wear. Factors to consider while selecting diaphragm actuator 1. Usage Factors Usage factors play a significant role in the selection of a pneumatic diaphragm actuator. These factors are: ●Compatibility Pneumatic diaphragm actuators need an air supply between the range of 40 to 120 psi to produce the necessary torque. However, higher pressures can be difficult to achieve in certain scenarios. At the same time, if your setup can only provide a low pressure, you will need a diaphragm or piston that has a larger diameter. Hence, you will need to select an actuator that can deliver the torque you require despite the pressure limitations that you may face.

3. ●Temperature Range Based on the industry, the working temperatures can vary greatly. Depending on the pneumatic diaphragm actuator and the seals, grease, and bearings used, the operating temperature can range from -40 to 250°F. Depending on your temperature range requirements, you will need to select an actuator that can operate in that range. ●Hazardous Areas Pneumatic diaphragm actuators are the preferred choice when it comes to hazardous or toxic environments. This is because they are explosion-proof in nature. However, if there is a lack of compressed air, your best bet is an electric actuator. 2. Sizing and Force For a pneumatic diaphragm actuator, the force refers to the amount of torque required to move the valve from its open to closed position. The force required depends on factors like: ● Type of the actuator ● Valve torque ● Minimum and maximum supply pressure ● Fail mode What’s more, the size and design of the valve as well as the differential pressure are also taken into consideration. Some of the other factors that the size depends on are: ● Media temperature ● Stem packing friction Mechanical characteristics of the valve and the valve system. Since sizing valve actuators is a complex process, it is recommended that trained experts determine this value. If you select an oversized valve actuator, it can damage the stem of the valve. Moreover, these will cost more and amount to wasteful spending. On the other hand, an undersized actuator won’t be able to operate the valve on demand. This becomes an especially crucial factor in case of emergency shutdown valves. 3. Frequency of Movement The frequency of movement or operation affects the mechanical drive durability as well as the robustness of the controller. As a result, valves that operate at an infrequent rate (like isolating or regulating duty valves) cause less wear and tear on the mechanical components and controls. Hence, vales that work continuously (like modulating process

4. valves) need more durability in terms of valves used and the pneumatic diaphragm actuator assembly. The capability of pneumatic diaphragm actuators is defined by the number of starts per hour. So, while selecting a valve as per the duty cycle look for: ● 30 – 60 starts per hour for regulating valves ● 600-1800 starts per hour for modulating valves 4. Safety Safety is one of the primary concerns that should be taken into account while selecting diaphragm actuators. It is always the best choice to select the safest and the most reliable option considering the application specifications. For example, if a fire breaks out, the pneumatic diaphragm actuator should be able to maintain the fail-safe position. If the most ideal actuator can’t be used due to other factors, you must use additional components to meet the safety and regulatory specifications. 5. Cost Cost is obviously one of the most important factors that needs to be considered. As a rule of thumb, the greater your torque requirement is, the more power will be needed. Subsequently, the larger the actuator, the higher the cost. Furthermore, using additional components to adjust for other shortcomings will also increase the overall upfront cost. However, this will also increase the reliability and durability of the actuator. This may prove more cost-effective in the long term. Remember, being diligent about quality control and being clear about your technical specifications are the most important practices in procuring the right actuator for your application. By picking the wrong pneumatic diaphragm actuator, you will not only fail to operate the valve but also cause damage to the components. The right actuator will ensure long-term use and fewer unexpected shutdowns. Harkesh Rubber is proud to exhibit at Valve World Expo2018. The event will be held from the 27th-29thNovember 2018 in Düsseldorf, Germany. Make sure to visit our booth, located at Hall 4 / F22 at the venue!