Pinch Valves at Work: Providing Long Service With Minimal Downtime

Within a manual operated rubber valve, there are three basic design components; the body, disc and cover. With a specialized rubber casing, the valve offers, to all intents and purposes, a service to users that is maintenance free without distortion of the valve disc and seat. If compared to conventional check valves, a manual rubber valve will be found to operate for longer periods with minimal downtime.

An innovative manual pinch valve designed to meet the needs of industry, is one developed for the output of finely granulated materials, in particular dry lime mud. This specific material contains a dry matter content level of 65 to 90%. A manual operated sleeve valve is composed of an elasticized inner tube within a pressure chamber and can be used as an outlet from the pressurizing process. The material processing is by use of a control pinch valve and a sluice feed which is used to ensure a pressure lock. The sluice feed provides a designated minimum height of material within the valve. The establishment of a tightly packed line of finely granulated material in the valve provides a significant drop in pressure which acts as a pressure lock.

One of the primarily basic and indispensable components of modern industry is the manual operated sleeve valve. In practically every manufacturing process, a control pinch valve is an essential and integral part of the production cycle. It is extremely effective in applications involving slurries or liquids and suspended solids. The valve provides a sealing process using one or more flexible elements, for example, a rubber pinch which can be pinched to shut-off a flow of material.

Added advantages of manual pinch valves include their ability to effectively control the flow of corrosives and abrasives. In addition, there is the lack of contact between any metal part of the valve and the transported material which is a major asset in circumstances where the purity of a product is a high priority. The versatility of the valve is displayed in its ability to handle waste-water, slurries, pulp, powder and pellets, as well as applications in medical and pharmaceutical processes.

The sometimes highly specialized working environments in which manual operated sleeve valves must perform can include differing temperatures ranging from -60°F to 300°F. The sleeves themselves can be manufactured from natural rubber or a compounded elastomer, which provide specific operational capabilities. Control sleeve valves are recognized for their excellent abrasion resistance and ability to process animal and vegetable fats.

As the efficiency and effectiveness of a manual sleeve valve depends on the quality and ability of the sleeve to meet the required material processing application, users must be familiar with the types of sleeves available. Whether their processing material application is related to chemical manufacturing or engineering, will determine which type of sleeve will best meet their specific needs.

Industries demand product quality, reliability and innovation, none more so than in the performance and reliability of manual operated valves. The effectiveness in operation and the production ability of industrial giants is, in many ways, dependent on seemingly insignificant valves, one specifically being the control pinch valve.

This is a valve that plays a major role in many areas of industry, including instrumentation and flow control processes. The operational environments will, on occasions, be offshore in extreme, adverse conditions such as oil and gas exploration and extraction processes. The quality and reliability of a manual pinch valve is something that can make a significant difference to an application of this nature.

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