Other Products / Services #5780107

A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. The pressure differential is dangerous, and fatal accidents have occurred in the history of pressure vessel development and operation. Consequently, pressure vessel design, manufacture, and operation are regulated by engineering authorities backed by legislation. For these reasons, the definition of a pressure vessel varies from country to country, but involves parameters such as maximum safe operating pressure and temperature, and are engineered with a safety factor, corrosion allowance, minimum design temperature (for brittle fracture), and involve nondestructive testing, such as ultrasonic testing, radiography, and pressure tests, usually involving water, also known as a hydrotest, but could be pneumatically tested involving air or another gas. The preferred test is hydrostatic testing because it's a much safer method of testing as it releases much less energy if fracture were to occur (water does not rapidly increase its volume while rapid depressurization occurs, unlike gases like air, i.e. gasses fail explosively).

In the United States, as with many other countries, it is the law that vessels over a certain size and pressure (15 PSIg) be built to Code, in the United States that Code is the ASME Boiler and Pressure Vessel Code (BPVC), these vessels also require an Authorized Inspector to sign off on every new vessel constructed and each vessel has a nameplate with pertinent information about the vessel such as maximum allowable working pressure, maximum temperature, minimum design metal temperature, what company manufactured it, the date, it's registration number (through the National Board), and ASME's official stamp for pressure vessels (U-stamp), making the vessel traceable and officially an ASME Code vessel.

Instrument Gas receivers are tanks used for compressed air storage and are recommended to be in all compressed air systems. Using air receivers of unsound or questionable construction can be very dangerous. Therefore, the American Society of Mechanical Engineers (ASME) has developed a code regarding the construction of unfired pressure vessels, which has been incorporated into many federal, state, and local laws. This particular code is ASME Code Section VIII Division 1. Air receivers should always meet or exceed this code in addition to any other state, municipal, or insurance codes that may apply.

Molecular Sieve Dehydration Units work on the principle of adsorption. Molecular Sieve Dehydration units typically have higher initial capital investments than comparable glycol units but also are able to achieve very low dew points which are required for cryogenic plants. Additionally, Molecular Sieve Units can also handle large flow variations as well as higher inlet gas temperatures.

Process Description

Typically Molecular Sieve Units consist of the following equipment: Inlet Pre-Filter Separators and Outlet Post Filter Separator Adsorption Towers (Usually a minimum of two are used: one adsorbing and one regenerating) Regeneration Gas Heater Regeneration Gas Cooler Regeneration Gas Cooler and Separator Lot of Process Piping, Switching Valves and instrumentation

Based on the client's preferences and the overall process schematic, there are several variations on the process flow. However, the basic principle of operations starts with the wet gas entering the adsorption tower at the top which contains the molecular sieve desiccant. The gas exist the bottom of the vessel dry. While one tower is adsorbing, the other tower is regenerating. For regeneration, gas is heated up to 550 F and is sent to the tower in regeneration to extract the water from the molecular sieves. As the saturated gas leaves the top of the vessel, it is cooled in a condenser and then the condensed water is separated in separator. The two towers switch between adsorbing and regenerating usually on a fixed cycle depending on the process conditions and overall schematic.

LT Panels

LT Panel is an electrical distribution board that receives power from generator or transformer and distributes the same to various electronic devices and distribution boards. Backed by a team of experts we are presenting our valuable clients a comprehensive range of LT Panels. Our product range is treasured for their high performance, low maintenance, reliable performance, easy to install and safety features.

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HT panels are compact outdoor type systems, which are broadly used in substations. Our product range is prepared from Circuit Breakers or switch fuse on HT side, which protects the equipment from sudden voltage fluctuation