Rex Steam Products Pvt. Ltd. Odhav, Ahmedabad, Gujarat

REX Vacuum Breakers provide a simple, dependable way to relieve any unwanted vacuum condition which may develop in closed vessels such as vats, unit heaters, jacketed pans, cookers, receivers, evaporators, heat exchangers, tanks, boilers, etc. and pipe line such as steam mains, condensate line etc. In steam system, a vacuum will form when a control valve throttles down or the steam line is isolated. This vacuum formation will prevent efficient condensate removal and lead to possible equipment or system damage and poor process control. In condensate return systems, collapsing flash steam bubbles will also cause a vacuum to form, leading to water hammer and noise problems. Essential on temperature controlled steam applications, REX VB-Series Vacuum Breaker range offers a simple and effective solution, allowing air to enter a system as vacuum forms, thus restoring the system balance. THE BENEFITS Effective vacuum prevention protects equipments from possible damage and ensures maximum system efficiency. Simple configuration for ease of installation. Robust design ensures maintenance-free operation. Choice of materials for use in a wide variety of applications and environments.

Proper condensate removal is essential for efficient process plant operation. REX offers a full range of established trap operating principles thermodynamic, ball float, and inverted bucket. Correctly chosen and fitted, REX traps can boost productivity, reduce spoilage, save man-hours, minimize steam consumption and cut fuel bills. HOW IT WORKS Cold condensate or air raise the disc under pressure and flow freely through the trap. When flash steam reaches the trap, the velocity under the disc is instantly increased and pulls the disc onto the seat. Flash pressure on top of the disc snaps it onto its seat to give a tight shut-off. Heat loss from above the disc, causes the chamber pressure to decrease and the valve disc opens again to discharge condensate. THE BENEFITS Compact, lightweight All stainless steel construction for good corrosion resistance. High resistance to water-hammer. Long life due to hardened seat and disc. Only one moving part. Efficient operation under varying loads and pressures. Discharges condensate at steam temperature.

REX is recognized as the pioneer and leader in development and manufacture of spring-loaded, single seat self-aligning swivel joints in India. These unique products handle 360° rotating and 10° angular-movement between machinery or other plumbing elements. REX Self-Aligning Swivel Joints are specified and accepted for a wide range of applications where piping movement must be accommodated and system integrity is critical. They are widely used in the rubber, paper, plastic, plywood & hardboard, lamination, chemical processing, food processing, mining & metals, dyestuff and many more industries. REX Self-Aligning Swivel Joints are offered in four different models and standard size range from 3/8” to 3”. REX also offers Non-Flex type Swivel Joints in standard size range to meet with the requirements of a joint with no side flexibility. Add prefix ‘N’ to standard models. REX self-aligning swivel joint is the key to solving many piping flexibility problems where high temperature and pressure are encountered. Three of these joints connected in a ‘DOG-LEG’ arrangement for steam/hot water/thermic fluid supply and condensate drainage of movable platen presses; combine the movement characteristics of a hose with long-life advantage of pipe. THE BENEFITS Self-aligning: 10° angular flexibility design feature permits positive positioning of lines. Reduce maintenance: Last longer, you can’t over-tighten the seal. Natural operating action maintains perfect fit of hemispherical ball. Long-lasting joint requires little attention No lubrication required: A worthwhile operating advantage. This means virtually no maintenance. Pressure safe, fireproof: No danger of burst, causing fire or other hazards.. Faster, easier installation: Save time on pipe fitting and installation, avoid flexible hose routing headaches.

Strainers are a critical component in any steam, liquid or gas system. REX SY-Series strainers are designed to remove pipeline debris, such as rust and pipe scale. Strainers will protect components such as valves, temperature and pressure regulators, steam traps, pumps, meters, burners nozzles and other process equipments from possible damage and help ensure that heat transfer surfaces are kept free from deposit build up. REX offers a full range of strainers in a variety of sizes, configurations, materials and screen openings to meet the bulk of all pipeline straining requirements. They are effective, inexpensive insurance against costly shutdowns and heavy maintenance cost. DESIGN FEATURES / BENEFITS A complete range of sizes and materials suitable for a wide range of applications and services. Large screen area for maximum dirt holding and minimized pressure drop. Various screen options for optimum system and component protection. No leak & no crush screen chamber. Precise machining of both ends of the chamber provides perfectly round and smooth seating surfaces as well as fixed chamber length. REX strainer are economically priced so that each piece of pipeline equipment can be protected.

Sight Glasses are devices that are normally fitted in a fluid line to provide a visual indication of the system condition. A sight glass fitted after a trap will quickly show whether it is working correct and will save hours where a lot of traps discharge into a closed condensate return system. It is very essential if ball float steam traps with steam lock release (SLR) are to be adjusted properly. Single Window and Double Window versions are available in the REX range. The double window sight glass gives a clearer indication of flow, particularly if the sight glass has to be fitted in a position where it is difficult to see, such as underneath a machine. DESIGN FEATURES / BENEFITS High Flow Capacity: The simple body design offers little resistance to flow. The flow area of all units is as large as or larger than, the area of pipe of the same nominal size. High visibility: The round glass window areas are extra large to provide exceptionally good visibility of the flow inside. Robust Construction: The use of heavy glass windows combined with soft selected seals which fit correctly into properly machined grooves provide leak free service at rated pressure and temperatures. Body remains in line during servicing. Easy to install: REX sight glasses are built to fit into process piping system as easily as a simple valve or a common pipefitting. May be fitted in either a horizontal or vertical line.

An improved method of connecting REX Rotary Joints to Journal shaft is provided with our QA-Series Quick release flange assembly. It eliminates threaded nipple and makes removal of the Joint very easy. It reduces inventory requirements too since it eliminates need for RH and LH threaded nipples. THE BENEFITS New scientific way of connecting REX rotary joints to journals. It reduces inventory requirements. No need for right hand (RH) and left hand threaded (LH) nipples. Positive sealing is accomplished with a gasket located between tip end of nipple and journal flange. Easy to mount or remove rotary joint - a fast one man operation. No danger of damaging or crushing nipple with heavy pipe wrenches. Eliminate misalignment problems.

when steam/air is passed through the separator, any entrained water droplets are encouraged to separate and drain away rather than remain in suspension. Steam or air flows around a series of baffles and its velocity is reduced because the space in the separator is large compared with the pipe bore. However the inertia of water droplets carries them on in a straight line so they impinge on the baffles and drain away. The baffles are designed to divert separated water from the flow of steam or air. Together with reduced velocity this prevents re-entrainment. water in suspension- your invisible enemy all steam distribution systems contains a certain amount of water due to condensation and carry-over from boiler turbulence and foaming. A similar problem arises with compressed air systems because water is a natural ingredient of atmospheric air. In both cases, careful draining and trapping will remove much of the water but not all. It cannot remove the water particles suspended in the steam or air. All too often nothing is done to remedy this problem. Because the water cannot be seen it is ignored. The consequences can be very costly indeed. the damaging effects of water in steam systems when water droplets reach the point of usage they needlessly increase thickness of the water film on the heat exchange surface. And water is a very poor conductor of heat. In fact, a water film just 1mm thick is as resistant to heat transfer as a half meter thickness of copper. The water may also carry impurities which will be deposited as scale – another barrier to efficient heat transfer. What’s more, traveling at high velocity, the droplets will both erode and corrode valves and valve seat and shorten the life of pipelines and fittings. the damaging effects of water in compressed air systems suspended water droplets cause similar problems. Pipe, valve and fittings will corrode. Particles of corroded metal may be swept along the system, clogging valves, strainers and traps. At the point of usage, water delivered with air can damage work pieces. Air powered tools will require excessive maintenance and will wear prematurely. design features / benefits rex separatiors safeguard your costly equipmentrex separators will protect your costly equipment from harmful effects of water droplets, because they remove water droplets from steam or compressed air system and increase operating profitability by: improving steam quality to maximize heat transfer and therefore plant efficiency. reducing maintenance costs and extending the life of pipelines, valves, traps, strainers and other associated equipment. protecting compressed air tools and preventing water damage to workpieces. dry steam or compressed air for increased efficiency and longer plant life. effectiveness over a wide range of velocities with minimal pressure drop.

Proper condensate removal is essential for efficient process plant operation. Rex offers a full range of established trap operating principles thermodynamic, ball float, and inverted bucket. Correctly chosen and fitted, rex traps can boost productivity, reduce spoilage, save man-hours, minimize steam consumption and cut fuel bills. HOW IT WORKS As condensate flows into the trap body, air and steam are trapped in the inverted bucket. This gives the bucket buoyancy and it rises with the condensate and quickly closes the valve. When entrapped steam condenses, bucket loses buoyancy, sinks and opens the discharge valve air. Which has accumulated in the top of the trap is immediately expelled by the pressure of the water which follows it to the trap outlet. When air or steam, again enter the inverted bucket, this cycle is repeated. THE BENEFITS Long, energy-efficient service life. Resistance to wear. Exceptional ability to handle dirt and scale. Operation against back pressure of nearly 100% Excellent purging action. Continuous air venting at steam temperature.

REX corrugated flexible hose assemblies are made from stainless steel corrugated hose tubing. The stainless steel hose is covered with an external braiding made from stainless steel wire. The wire braiding can be either single or double layer according to pressure rating required. Braiding increases the hoop strength, stabilizes movement and offers a form of protection to inner corrugated tubing. REX FH-Series stainless steel corrugated flexible hose has been engineered especially for use as Inlet and outlet connections to REX Rotary Joints. It keeps pipe strains from crowding the joint, and does not restrict the joint’s built-in flexibility. It can also serve in many other types of piping systems, wherever misalignment or expansion presents a problem. REX flexible hose is available in sizes from 3/8” to 6”, with couplings threaded, flanged or combination. Steel couplings are double argon welded to hose to make this joint stronger that the hose itself. THE BENEFITS It is suitable for wide temperature range up to 800 °C. It compensates for thermal expansion or contraction in piping system Higher physical strength. Good corrosion characteristics. Fire & moisture resistant. Long life. Resistant to abrasion, penetration and damage. Absorbs or dampens vibration and noise from equipment. Permits a very economical installation against rigid piping in difficult locations.

Check valves are self-contained and self-actuating valves that act automatically to prevent flow reversal. REX DCV-Series Disc Check Valves are an excellent alternative to conventional check valves for several reasons. Its design is inherently lighter and more compact, making it less expensive to install and to ship. All valves are seat tested before thery are shipped from the factory. It provides a maintenance free effective solution for preventing reverse flow of condensate discharged from traps. Fit easily between two pipe flanges, can be installed in any direction, with good, tight shut-off. Recommended for all trap installations draining into flooded return lines to prevent return flow especially during a shutdown. REX offers a full line of check valves that are used in a wide range of application for industries such as Oil & Gas, Pulp & Paper, Chemical, Petrochemical, Refining, Mining, Power, Heating, Air Conditioning, Cooling, Timber, Iron & Steel, Textile & many more industries. THE BENEFITS Wide range of uses across a variety of fluids such as, liquids gases & vapours. The unique cam design of the body, enables it to fit between a wide varieties of flanges. The disc is spring assisted. This design is much more efficient in reducing pressure drop, drastically reduces water hammer. Simple & compact design, choice of metal-to-metal or soft seals, use of approved stainless steel materials and quality manufacture, makes it versatile.

Almost every factory has a compressed air installation of one kind or another. It is now so widely used that there are few works which do not have a compressed air system. Compressed air tools, actuators and instruments must be clean and dry and may need to carry a measured amount of oil mist for lubrication. Like steam, compressed air gives up moisture on cooling and this is carried by air in the form of a mist and is deposited in coolers, receivers and air mains. To give dry air at the point of usage it is necessary to lay out the distribution system properly, provide adequate drain points and fit separators to remove the mist of water from the air. REX offers a full line of compressed air auto drain traps for fitting to drain points on cooler, receivers, separators and mains drain points. They are fully automatic and do not require any manual setting or adjustment for draining interval as in the case of electrically operated drain traps. These traps are available in two different internal designs based on their operating principles – Ball Float type and Inverted Bucket type. Both these are mechanical traps that operate on the large difference in density between air and water. Electronic drain traps opens cyclically, irrespective of whether there is enough water or not for discharge. In case there is no water, the trap cannot differentiate air from water, hence there is no alternative for the trap but to leak air, while ball float type or inverted bucket trap opens only to presence of water and closes immediately once the water has been cleared. Hence there is no any air loss.

Proper condensate removal is essential for efficient process plant operation. REX offers a full range of established trap operating principles thermodynamic, ball float, and inverted bucket. Correctly chosen and fitted, REX traps can boost productivity, reduce spoilage, save man-hours, minimize steam consumption and cut fuel bills. HOW IT WORKS On start up, main valve is normally closed. When condensate reaches a certain level in the trap, the float begins to rise. This opens the main valve and condensate is drained until the float is lowered and the valve rests tightly on the seat. The float is positioned above the main valve & seat so the condensate forms a water seal and eliminates loss of any live steam. Since there are no pressure fluctuations due to intermittent operation, condensate is discharged at a constant temperature. THE BENEFITS Discharges condensate continuously as rapidly as it forms. High thermal efficiency at both light and heavy loads. Continuous modulating discharge does not create pressure disturbances, which may affect control in air heating coils, shell-and-tube exchangers, etc. Stainless steel internal working parts increase service life. In-line horizontal piping connections simplify installation and maintenance. All internal parts can easily be renewed without disturbing the pipe connections. Float traps can never “lose prime” and blow steam. When condensate is not present, the main valve closes tight. Steam loss is eliminated because during operation, the main valve is always sealed by condensate. The steam lock release (SLR) prevents steam locking when condensate must be lifted to the trap.