A. S. Abdullabhoy & Co. BBD Bag, Kolkata, West Bengal

A flange allows two pipes to be mechanically connected together, or a pipe to be mechanically connected to a valve, tee, choke or other piece of equipment. The principle of a flange is to use a mechanical force (exerted by the bolts) to pre-load the gasket sufficiently so that when internal pressure (end cap force) is applied, there is enough contact stress between the flanges and gasket to maintain a seal. The flange itself needs to be connected to the pipe. This is usually achieved by welding, though threaded and other weldless connections also exist.

POWER TOOLS

We are one of the leading suppliers and stockiest of hydraulic & pneumatic tools and accessories that is widely used for maintenance of machineries in various industries for water, oil, steam, air and chemicals. We make sure that our original manufacturers the range of hydraulic & pneumatic tools fittings in CS, SS and Brass as per the drawings or samples. All our items are available from the ex-stock.

Pipe elbow fittings is a very important pipe fitting. When we talk about a pipe elbow, it means a length of pipe with a sharp bend in it. Pipe elbows are fitting accessories which are used widely in various industrial sectors in pipe fitting. A pipe elbow is frequently used in pressurized applications and are available in various shapes and sizes for use in different applications. A pipe elbow is a fitting installed between two lengths of pipe or tube allowing a change of direction, usually in the 90° or 45° direction. Pipe elbows are usually constructed at a bend of 45 degree or 90 degree. There are some manufacturers who can also manufacture pipe elbows with a selectable angle. Whether you need a 1/4, 1/8, 1/16 bend or any bend in between, there are all the options available in elbows. This becomes an easy-to-use two-piece elbow that can be cut and assembled to virtually any angle. This ability of a custom made elbow is very unique and provides installers with unmatched flexibility and convenience while at the same time greatly simplifying the fitting of custom joints. Such elbows come complete with a two-piece selectable angle elbow, angle measuring templates and installation instructions. A diagrammatic representation of three sets of custom made pipe elbows.

We are engaged in offering a wide variety of measuring tools which are used for qualitative measurement of component in various industries. These measuring tools may include motor-sport, electrical & electronics industry, Indian defence, plastics and petro-chemicals. Our assortment of measuring tools gives accurate measures of al the components and assures reliable and consistent instruments.

We are engaged in stocking and supplying a wide assortment of lifting tools and tackles that is widely used in used in heavy engineering, construction and many more applications. We also offer custom made lifting tools chain slings, wire rope slings that are manufactured against drawings and tested by Govt. approved Labs. We also undertake manual and mechanical splicing, crimping of wire ropes. Furthermore, we also import shackles, clamps, hooks. Our assortment is widely appreciated for its dimensional accuracy, durability and corrosion resistance.  

Gate ValvesWe supply gate Valves, also referred to as the Sluice Valve that opens up by lifting a gate/wedge and is at times used to restrict the flow of fluids as either it opens up or shuts up completely. When open it does not restrict the passage of flow and as a result it leads to low friction loss.Characteristically the rising stem used for visual indication of valve position, non rising stem used whereint he vertical space is restricted and the bonnets, be it union,bolted or pressure seal, each one is designed to efficiently function as leakproof closure for the valve body. We supply gate valves of standard dimensions and also make sure that our manufacturers make use of high quality cast iron, cast carbon steel, gun metal, stainless steel, alloy steels and forged steel.

Leveraging upon our rich vendor base, we offer a complete range of different fire fighting equipment that are reckoned for their better accuracy and efficiency in fire fighting applications. Sourced from the leading manufacturers, these fire fighting equipment are in sync with international quality standards and hence offer high performance. Our range encompasses : • Centrifugal engine-driven pump• Centrifugal fire pump• Foam fire extinguishing system• Fire damper• First aid kit  

We are one of the renowned stockiest and dealers of all types of a wide variety of metal cutting tools. Our assortments of these cutting tools are perfect for metal cutting be it drilling, hand cutting, turning, facing, threading and power cutting. Our assortment is widely appreciated for their durability and high performance.   HSS Drill Bits-Straight Shank & Taper Shank Carbide Drill Bits Solid Carbide Drills Tap Sets Die Sets Centre Drills Long Series Drill Bits, HSS & CS Hacksaw Blades Bandsaw Blades Bi-metallic Hacksaws Hole Saw Cutters Carbide Tipped Wood Saws Turning & Facing Tools Carbide Tips Inserts Tool Bits HSS Reamers Carbide Reamers Marble Cutting & Polishing Blades Tube Cutters

We offer a highly qualitative gamut of check valves, also referred to as the clack valves or non return valves. These valves allow the flow of fluids in one single direction and therefore named as one-way valves and as they have two openings, one being for the fluid to enter and the other for it to exit, it is termed as two port valves. The valves are made from qualitative metal and plastic providing durability and low maintenance.Part of the common household products, the valves function without external control. The most vital aspect of these valves is the cracking pressure, the pressure at which it functions. Our range is available in a variety of sizes and costs, wherein the valves are usually small, simple and low rated.

A BUTTERFLY VALVE consists of a disc rotating in trunnion bearing. In the Open position the disc is edge-on, offering minimum resistance to flow. In the closed position it is rotated against a seat.Butterfly valves are available in sizes from 25 mm to 6 (1 in to 25ft) diameter. They are particularly attractive because they take up little more room than the pipe flanges. In case some butterfly valves are designed specifically for insertion between pipe flanges, using through bolts. These are know as wafer butterfly valves. Other types are normally single-flanged or double-flanged . known also as lug-body valves.Butterfly valve movement is simple and straightforward, requiring only 90o rotation of the butterfly for full movement (or somewhat less in most designs). The main disadvantage is that a simple butterfly design is difficult to render completely ‘tight’ when closed, due to the absence of any wedging effect in this plane. This can be alleviated to a certain extent extent by seating the butterfly on a resilient ring on closure and/or offsetting the axis of rotation slightly so that, as well as rotating, the blade has a movement in a plane at right angles to the spindle axis.One lesser drawback of the butterfly is that in the fully open position the butterfly, (now edge-on), offers some resistance to flow and could collect fibrous or stringy materials when used with a contaminated fluid. It is thus more suited for use with clean fluids, where its basic advantages and low actuating power requirements can make it an attractive choice in all sizes.Body construction is normally cast iron, although various other materials may be used depending on size and application. Welded materials (eg. steel, stainless steel and titanium) may be used for certain valves for the chemical industry, and in particularly where percolation of gases through cast components is to be prevented.