Heat Exchangers

A heat exchanger is a device that transfers heat from one medium to another. The heat is transferred by conduction through the exchange of materials separating the media used. The medium through which this heat exchange occurs is what determines the different kinds of heat exchangers.

The heat exchange may be for the primary purpose of heating up elements or cooling them down. Within the industrial sector, cooling tends to be the more prevalent function in order to prevent equipment or volatile substances from overheating. There are many different types of heat exchangers, each with its own advantages and drawbacks, yet tailored to best suit different purposes and industries.

Heat exchangers have a very broad range of industrial applications. They are used as components of air conditioning and cooling systems or of heating systems. Many industrial processes call for a certain degree of heat to function; however, typically great care must be taken to keep these processes from getting too hot.

Materials: SS (Stainless Steel) -304, 304L, 316, 316L, 321, 410, Boiler Quality, Low and High Alloy Steel, Clad Steel, Inconel, Monel, Aluminum, Duplex Stee.

Types Of Designs Available: Fixed tube sheet, Floating tube sheet, ‘U’ tubes, Kettel type, Double tube sheet.

Types Of Exchange : Condensers, Coolers, Heaters, Reboilers, Desuperheaters, Fin Tube Type, Double Pipe, Chillers, Evaporators, Waste Heat, Boilers, Surface Condensor.

Range / Capacity: Thickness up to 65 mm for Shell and dish, Tubesheet thickness up to 250 mm, Girth Flange thickness up to 350 mm, Diameter up to 3 mtr, The surface area up to 4000 mtr.


Tube Bundle

A tube bundle is a densely packed collection of pipes used as a radiation core in heat exchangers. These pipe groups are typically housed in a tubular shell or outer housing with a constant flow of water moving through it. When hot liquids or gases are circulated through the tube bundle, the large combined surface area of the tubes allows for efficient transfer of heat into the shell water and cooling of the fluids in the tubes.

Tube bundles are often housed in an outer casing or a tubular shell with a constant flow of fluids moving through it. There are tube bundles that allow liquid to liquid heat exchange as well as steam to liquid heat exchange. There are two distinct types of tube bundles: straight and U tube. The pipes in these bundles are generally made of steel or copper depending on the specific application.

Tube bundles go inside the shell of a heat exchanger. This is the part that fails the most often as the tubes can be vulnerable to corrosion and failure. The average tube bundle uses water that is heated by steam or other fluids in the shell.

Tube bundles are often manufactured to meet a customer’s requirements. They can be made with a variety of materials depending on the temperatures the tube bundle will manage to handle as well as the needs of the application.

However, some of the materials used to make this device include:

  • > Stainless Steel 316
  • > Copper
  • > Carbon steel tubes
  • > Admiralty brass
  • > Cupro-nickel
  • > Titanium
  • > Carpenter 20

Heaters / Reacters

Reactors are vessels wherein a chemical reaction takes place in an industry or at any manufacturing plant. They vary in size, from a few cm3 to vast structures, depending on their operational application. The design of the reactor is determined by many factors but of particular importance are the thermodynamics and kinetics of the chemical reactions being carried out. Our products find application in the following industries, namely; Chemical, Oil & Petroleum, Pharmaceutical, Radioactive, Water Treatment Industry among others.

We are having immense experience in designing and manufacturing of reactors that can best fit the various industrial processing requirements of the reactors. We design the reactors as per the size and process needs of the client. The reactors manufactured by us are made with high-quality internal and external material by taking discreet efforts for the perfect size and uniform heat distribution.

Types Of Reacters/Heaters


> Feeders

> semi-batch reactor

> Batch reactor

> Catalytic reactor

> PFR (Plug Flow Reactor)


> Fermentation of beverage products

> Wastewater treatment

> Industrial processing

> Gasoline production

> Oil cracking

> Oxidation of sulfur dioxide

Pressure Vessels

Pressure vessels are containers designed to hold vapors, liquids, or gases at a specific pressure different from the ambient temperature where the vessel is located. Because pressure vessels usually hold materials at a high pressure they can be dangerous if not properly maintained. Regular inspections are a critical part of the maintenance process for pressure vessels, helping to reveal potential problems before they develop further. Pressure vessels are leak-proof containers that store liquid or gas. Pressure vessels of various sizes and shapes have been produced for different purposes. Generally, preferred geometries are spherical, conical, and cylindrical.
A typical model is the combination of a long cylinder with two heads. Pressure vessels work at internal pressures higher or lower than air pressure. Besides, the operating temperatures of these systems differentiate. If a pressure vessel is operated beyond the pressure or temperature it was designed to handle, the result could be the catastrophic failure of the unit. In the worst-case scenario, operating outside of a vessel’s design could lead to fires, poisonous gas leaks, or even explosions, all of which could pose an extreme danger to anyone working in the surrounding area.Common Characteristics of Pressure Vessels

All kinds of pressure vessels including high-pressure vessels like- Autoclaves, Reactors with or without agitator, Dearatoros, Jacketed Vessel, Limpet Coil Vessel.

Range / Capacity: Thickness up to 65 mm, Diameter up to 6 mtr, Length up to 20 mtr, Weight up to 150 Ton.

Materials: (Stainless Steel) SS-304, 304L, 316, 316L, 321, 410, Boiler Quality, Low and High Alloy Steel, Clad Steel, Inconel, Monel, Aluminum.


We are known manufacturer and exporter of Column that are of optimum quality and is used by many people for various backgrounds dealing with this business. These are highly appreciated by our clients for their durability, corrosion resistance, and dimensional accuracy furthermore, where we make them available to the clients in various lengths, diameters and other associated specifications as per the varied requirements of clients. The offered products are manufactured by our skilled professionals using high quality raw material and advanced technology in conformity with set industry norms.

We are regarded as the noteworthy manufacturer, exporter and supplier of an extensive gamut of this product, which is meticulously checked on various quality parameters and is widely demanded in various industries. We offer these products at nominal price in a confine time frame. Resistant to corrosion, these distillation column tower manufacturers by us has fetched high demands among the client-base, we have accomplished to gain so far. It is known for Reasonable price, Reliability, High durable, and so on. Our offered products are acknowledged among customers for its sturdy design.

Types of design available: Sieve plate, Bubble caps, Packed, Perforated.

Materials: SS-304, 304L, 316, 316L, 321, 410, Boiler Quality, Low and High Alloy Steel, Clad Steel, Inconel, Monel, Aluminium.

Range / Capacity: Thickness up to 65 mm, Diameter up to 3 mtr, Length up to 100 mtr, Weight up to 150 Ton.

Dish Ends

This Dish End also called Cap pipe fittings that are available in different structures and size. These fitting are used in a piping system to adjust the direction, change pipe distance, or flow division. We offer Dish Ends in various materials like carbon steel, stainless steel, aluminium etc. in the standard form at best market price. Our Dish Ends are Light-weighted high-quality ends offers safe fittings in a piping system that have been most appreciated by our esteemed clients. It also has excellent resistance to stress corrosion cracking, oxidation, erosion-corrosion, pitting, and general corrosion; therefore, it can smoothly use in any application and any atmospheric situation.

Our dish ends are also used in pressure vessels and high-pressure boilers to retain the end sealed. These dish ends are tough and can withstand elevated temperature and cryogenic temperature and the acidic environment. Rajveer Stainless & Alloys manufacture excellent quality dish ends in many industrial sectors like offshore, speciality chemicals industry, heat exchangers, seawater equipment, oil and gas industry, plumbing, petrochemical industry, food processes, pharmaceutical industry, water lines, condensers, etc.

Features Of Dishend

  • Optimum Finish: This SS Dish End comes with the rust-resistant property, which guarantees its fine finish even in troublesome conditions that ensure the durability of the product.
  • Lasting Performance: Since they have properties of stainless steel, these dish ends guarantee endurable working without causing any stress or damage.
  • Competitive Prices: You can avail Stainless Steel Dish End in endless configurations at the industry-leading prices that make no burden on your wallet.