ratnamani Vastrapur, Ahmedabad, Gujarat

Hf-erw pipes are made from hot rolled flat steel strip, formed into tubular shape and the longitudinal seam is welded by the application of mechanical squeezing of edges and heating the edges through high frequency electric resistance applied by induction or conduction.

Ratnamani is one of the major manufacturers of quality range of spiral pipes in india.

Stainless steel pipes used to convey fluids from one location to another. Pipes also has many other industrial applications, which are crucial for moving raw and semi-processed fluids for refining into more useful products.

Ratnamani is one of the major manufacturers of Stainless Steel Seamless Instrumentation Tubes for applications in Power generation i.e Nuclear, Thermal and Solar Power Plants, Refinery and Petrochemical, Oil and Gas, Chemical and Fertilizer, Process Industries, Defence, Atomic Energy, Aerospace ,Automobile, Pulp and Paper Industries etc.

Ratnamani ventured into manufacturing pipes at the site by way of mobile plant. The mobile plant caters to customer requirement on location. There plants can be dismantled and re-erected within a short span. This unique feature helps in easy handling of pipes at site, meeting delivery schedules and cut down transportation cost thus making the project economical and viable.

U- Tube heat exchanger comprises a set of U-shaped tubes fixed to a Tube Sheet and get supported by flow baffles or tube support and placed in a shell welded or bolted to the Tube Sheet.

The two ends of a set of straight tubes are fixed to two Tube Sheets, welded or bolted to the Shell. One fluid passes through the Tubes and the other through the Shell. Such Heat Exchangers are used in applications where the fluid have high fouling properties . They are also used in applications with high occurrence of temperature cross. The straight tube structure facilitates easy cleaning of the tubes.

Ratnamani is having dedicated facility for manufacturing Titanium Tubes. Tube Mill is having additional facility of Ultrasonic strip cleaning, On line bright annealing and on line eddy current testing facility.

Ratnamani is having dedicated facility for manufacturing Stainless Steel Seamless Instrumentation Tubes. Instrumentation tubes are used to connect various pressure gauges, pressure switches, valves and flow monitors on industrial piping and ventilation systems.

Ratnamani is one of the major manufacturers of Stainless Steel Seamless Pipes for application in Power generation Nuclear, Thermal and Solar, Refinery and Petrochemical,Oil and Gas, Chemical and Fertilizer and Process Industries.

Ratnamani is having number of tube mills for manufacturing Stainless Steel Welded Pipe from Stainless Steel coils upto 18" NB in double random length. The welding process is controlled by laser seam tracking equipment to optimize the quality of weld seam.

Ratnamani's internal liquid coating plant is designed to apply a suitable spray coating on the inside surface of pipes for transportation of oil, gas, water & any types of liquids. Liquid Epoxy coating is applied on abrasively cleaned internal surface of pipe with the coating thickness minimum 60 µm & Maximum up to 2000 µm with single or multi coat as required.

The pipes are supplied according to appropriate standards as well as customer specifications in a large variety of steel grades and dimensions. Specific requirements on execution, tolerances, lengths, and mechanical & chemical properties are offered on request.