Metropolitan Industries We are one of the top valve manufacturers in India. We are India's premier manufacturing company catering a wide range of industrial valves. Our forte lies in providing the best quality industry products and we have attained the highest quality standards in valve manufacturing. Our products find frequent application in various industrial segments and hence we ensure that our products render reliable and smooth service. METROPOLITAN INDUSTRIES, a PARTNERSHIP FIRM, was incorporated in 1957. The registered office of the company is at 30, Chittaranjan Avenue, Kolkata : 700 012, India, in the heart of the Kolkata City, opposite to Air India City Office. The works is situated at 22/1/1, ‘J’ Road, Belgachia, Howrah : 711 105, West Bengal about 4 km from Howrah Station. Apart from having a team of qualified and experienced personnel, we have a documented and established Quality Assurance System and accredited with ISO 9001 : 2008 Certification by M/s DET NORSKE VERITAS (DNV) GL. The products of METROPOLITAN INDUSTRIES are both conventional and special purpose industrial valves like Gate Valves, Globe Valves, Sluice Valves, Check Valves, Butterfly Valves, Ball Valves, Plug Valves, Diaphragm Valves, Flush Bottom Valve, Knife Gate Valve, Hammer Blind Valves etc manufactured to the standards of API, BS, DIN, IS etc. We also manufacture and supply Pipe Fittings, Gaskets, Fasteners, and Mechanical Spares etc. Our customer range include major Petroleum Refineries, Petrochemicals, Fertilizer, Port Trust, Steel, Aluminium, Zinc and the Power Utilities (Thermal Power Plants, State Electricity Boards). Our products regularly undergoes inspection carried out by reputed third party agencies like LLoyds, Bureau Veritas, IRS, DNV GL, CEIL, SGS, PDIL, and customer’s consultants. Metropolitan Industries is in a position to carry out necessary dimensional, visual inspection, chemical analysis, mechanical tests, non destructive tests, hydrostatic and pneumatic pressure tests and also other tests like vacuum, helium & functional tests. The journey of Metropolitan from days of early fifties with a dream of climbing upon a commanding height in the engineering supply management system was not a cake -- walk. It has to have crossed over and won over many a hurdle with miracular efforts. It is classic in every aspect of operational management. It is a saga of those days when the trading activities was totally transformed into manufacturing one depending on customers demand and need with a team of dedicated professionals and technocrats under the able leadership of the management. Metropolitan is pioneer to foresee the development of Import Substitute and has been presenting a unique range of Import Substitute Products in the area of total Mechanical Management that help out our customers to overcome importing and expenditure of precious foreign exchange resulting in minimisation of cost of production as well as development and utilization of indigenous technical know-how and resources. It is the result of tireless study, research, development of Metropolitan in-house professionals. Now it is a phenomenon. Indeed a big dream was born in the form of a small plant nurtured and took the shape of an Organisation to produce more than a product which is utility - based value added service to its innumerable customers. We take pride in our Study, Research, Development, Manufacturing Activity and it makes a difference as name in the true meaning of Quality Assurance. Thus, we have been continuously approaching towards excellence.

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We are one of the top manufacturers and suppliers of Check Valves in India. Check valves are designed to prevent the reversal of flow in a piping system. These valves are activated by the flowing material in the pipeline. The pressure of the fluid passing through the system opens the valve, while any reversal of flow will close the valve. Closure is accomplished by the weight of the check mechanism, by back pressure, by a spring, or by a combination of these means. The general types of check valves are swing, tilting-disk, piston, butterfly, and stop.

Butterfly valves are especially well-suited for the handling of large flows of liquids or gases at relatively low pressures and for the handling of slurries or liquids with large amounts of suspended solids. Butterfly valves are built on the principle of a pipe damper. The flow control element is a disk of approximately the same diameter as the inside diameter of the adjoining pipe, which rotates on either a vertical or horizontal axis. When the disk lies parallel to the piping run, the valve is fully opened. When the disk approaches the perpendicular position, the valve is shut. Intermediate positions, for throttling purposes, can be secured in place by handle-locking devices. For any requirement of Butterfly Valve feel free to contact us. We offer best quality Butterfly Valves at the most competitive rates.

We are one of the leading manufacturers and suppliers of Butterfly Valves in India, A butterfly valve is a rotary motion valve that is used to stop, regulate, and start fluid flow. Butterfly valves are easily and quickly operated because a 90 degree rotation of the handle moves the disk from a fully closed to fully opened position. Larger butterfly valves are actuated by handwheels connected to the stem through gears that provide mechanical advantage at the expense of speed. Butterfly valves possess many advantages over gate, globe, plug, and ball valves, especially for large valve applications. Savings in weight, space, and cost are the most obvious advantages. The maintenance costs are usually low because there are a minimal number of moving parts and there are no pockets to trap fluids.

A globe valve is a linear motion valve used to stop, start, and regulate fluid flow.The globe valve disk can be totally removed from the flowpath or it can completely close the flowpath. The essential principle of globe valve operation is the perpendicular movement of the disk away from the seat. This causes the annular space between the disk and seat ring to gradually close as the valve is closed. This characteristic gives the globe valve good throttling ability, which permits its use in regulating flow. Therefore, the globe valve may be used for both stopping and starting fluid flow and for regulating flow. When compared to a gate valve, a globe valve generally yields much less seat leakage. This is because the disk-to-seat ring contact is more at right angles, which permits the force of closing to tightly seat the disk.

We are a premier manufacturer of Gate Valves in India. A Gate Valve is a linear motion valve used to start or stop fluid flow; however, it does not regulate or throttle flow. The name gate is derived from the appearance of the disk in the flow stream. The disk of a gate valve is completely removed from the flow stream when the valve is fully open. This characteristic offers virtually no resistance to flow when the valve is open. Hence, there is little pressure drop across an open gate valve. When the valve is fully closed, a disk-to-seal ring contact surface exists for 360°, and good sealing is provided. With the proper mating of a disk to the seal ring, very little or no leakage occurs across the disk when the gate valve is closed. Gate Valves are available in Solid Wedge, Flexible Wedge, Parallel Disc and Split Wedge design. The Stem of Gate Valves are Rising type and Non Rising type. For the non rising stem gate valve, the stem is threaded on the lower end into the gate. Rising stem gate valves are designed so that the stem is raised out of the flowpath when the valve is open. Rising stem gate valves come in two basic designs. Some have a stem that rises through the handwheel while others have a stem that is threaded to the bonnet. Seats for gate valves are either provided integral with the valve body or in a seat ring type of construction. Seat ring construction provides seats which are either threaded into position or are pressed into position and seal welded to the valve body. The latter form of construction is recommended for higher temperature service.

We are one of the premier Ball Valve manufacturer in India. A ball valve is a rotational motion valve that uses a ball-shaped disk to stop or start fluid flow. The ball performs the same function as the disk in the globe valve. When the valve handle is turned to open the valve, the ball rotates to a point where the hole through the ball is in line with the valve body inlet and outlet. When the valve is shut, the ball is rotated so that the hole is perpendicular to the flow openings of the valve body and the flow is stopped. Most ball valve actuators are of the quick-acting type, which require a 90turn of the valve handle to operate the valve. Other ball valve actuators are planetary gear-operated. This type of gearing allows the use of a relatively small handwheel and operating force to operate a fairly large valve. Some ball valves have been developed with a spherical surface coated plug that is off to one side in the open position and rotates into the flow passage until it blocks the flowpath completely. Seating is accomplished by the eccentric movement of the plug. The valve requires no lubrication and can be used for throttling service.

We are one of premier manufacturer of Plug Valves in India. A plug valve is a rotational motion valve used to stop or start fluid flow. The name is derived from the shape of the disk, which resembles a plug. The simplest form of a plug valve is the petcock. The body of a plug valve is machined to receive the tapered or cylindrical plug. The disk is a solid plug with a bored passage at a right angle to the longitudinal axis of the plug. In the open position, the passage in the plug lines up with the inlet and outlet ports of the valve. When the plug is turned 90° from the open position, the solid part of the plug blocks the ports and stops fluid flow. Plug valves are available in either a lubricated or non lubricated design and with a variety of styles of port openings through the plug as well as a number of plug designs.

Our Cast Steel Globe Valves are available in Material ASTM A 216 Gr. WCB. These Globe Valves are generally manufactured as per Design Standard BS 1873. End connection : Flange, Butt Weld, Socket Weld Bolted Bonnet, Outside Screw, Rising Spindle type Size : 15 mm to 600 mm Pressure Rating : 150# to 2500#

With our major thrust upon Import Substitutes since our inception for nearly five decades, we have successfully developed and manufactured High Pressure Valves for Fertiliser, Power and Petrochemical Industries. Our range of High Pressure Valves include Knife Gate, Globe, Check and Needle Valve etc.