Sondex Heat Exchangers India Pvt. Ltd.

Our SONDEX® standard plate heat exchangers are the ideal choice for a wide range of applications across numerous market segments. Innovative technologies and smart design make our standard plate heat exchangers a stellar investment and the go-to choice for standard duties.

We have one of the largest plate portfolios in the world and we customize each heat exchanger to meet your exact requirements. The versatile design and high thermal efficiency make them the perfect solution for a wide range of applications. 

Features and benefits

• Experience the benefit of an individually customized solution that perfectly matches your requirements and lowers your energy consumption.
• High performance and a low pressure drop eliminate unnecessary burdens on your system and optimize overall system performance.
• We design single-pass solutions when possible, as they are the preferred choice for almost all duties. With all connections on the head you do not need to disconnect the heat exchanger from the piping to perform inspection, cleaning, or service.
• The design results in a compact solution with a small footprint, simple installation, and easy access for maintenance.

Technical specifications

• Conections from DN25 to DN600 (1" to 24")
• Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards
• Plate materials: AISI 304/316, titanium, SMO, Hastelloy*
• Gasket materials: EPDM-HT, NBR-HT, Viton*
• Plate lengths up to 5.5 m (18 ft)
• Flow rates up to 7,200 m3/h (31,700 gpm)
• Working pressure up to 35 bar (500 psi)
• Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)

Features and benefits

• High efficiency means that fewer plates are needed for high performance and consequently lowers the hold-up volume. Fewer plates also lowers the cost of each heat exchanger, as an added bonus.
• Engineered to use smaller amounts of potentially hazardous media, the SONDEX® semi-welded range is a safe and responsible choice for demanding duties.
• Unique gasket system intended for high working pressures and vacuum applications. A closed gasket groove keeps the gasket firmly in place and prevents misalignment of the plate pack during assembly and operation.

Technical specifications

• Connections from DN65 to DN500 (2½" to 20")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Plate materials: AISI 304/316, titanium, SMO, Hastelloy*
• Gasket materials: EPDM-HT, NBR-HT, Viton*
• Ring gasket materials: EPDM-HT, NBR-HT, Viton, Chloroprene, PTFE*
• Plate heights up to 3 m (9.8 ft)
• Flow rates up to 5,000 m3/h (22,014 gpm)
• Working pressure up to 30 bar (450 psi)
• Working temperatures from -20 °C to 180 °C (-4 °F to 356 °

Features and benefits

• Gentle treatment and even distribution of the media provide the highest possible product output quality.
• High heat transfer efficiency and extended intervals between cleaning ensure operation for an entire campaign with minimum downtime and maximum value for money.
• Large plate gap designed to counteract fouling with sizeable plate channels and no stagnant zones.

Technical specifications

• Connections from DN25 to DN300 (1" to 12")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Plate materials: AISI 304/316, titanium, SMO, Hastelloy*
• Gasket materials: EPDM-HT, NBR-HT, Viton*
• Plate heights up to 3.5 m (11.5 ft)
• Flow rates up to 1,600 m3/h (7,045 gpm)
• Plate gaps from 5 mm to 20 mm (0.2" to 0.8")
• Working pressure up to 10 bar (145 psi)
• Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)

Features and benefits

• Heat exchanger solutions that adhere to the strict hygienic demands of the industries and complies with FDA material standards.
• Plate technology made to provide the highest output product quality. We ensure gentle media treatment during processing with precise flow control, perfect temperature profiles, and the optimal residence time for all applications.
• Cladded or stainless steel frames designed to be easily accessible for quick and trouble-free inspection, maintenance, or cleaning – including cleaning in place (CIP).
• Enjoy huge savings on your power consumption with our regenerative pasteurizers that can recycle up to 95% of the energy.

Technical specifications

• Connections from DN25 to DN800 (1" to 32")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Plate materials: AISI 304/316, titanium, SMO, Hastelloy*
• Gasket materials: EPDM-HT, NBR-HT, Viton*
• Plate heights up to 3.5 m (11.5 ft)
• Flow rates up to 1,600 m3/h (7,045 gpm)
• Working pressure up to 25 bar (363 psi)
• Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)

Features and benefits

• Very compact, cost-effective units that take up minimal floor space are light in weight, while providing very efficient heat transfer, through the courtesy of a true counter-current flow.
• The gasket-free solutions feature a fully welded plate pack that enable them to work with very high pressure and temperatures. The risks of leaks are severely diminished with a completely welded heat exchanger.
• The plates in the completely welded plate pack are made from highly resistant materials guaranteed to withstand even the most extreme working conditions.

Technical specifications

• Connections from DN32 to DN50 (1 1/4" to 2")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Plate materials: AISI 304/316, SMO, titanium*
• Working pressure up to 25 bar (363 psi)
• Working temperature -30 °C up to 300 °C (-22 °F to 572 °F)

Features

Our SONDEX® SondBlock heat exchangers (SB/SBL) are compact and durable solutions for challenging applications that involve aggressive media, extreme temperatures, and/or high pressure. As SondBlock heat exchangers have no exposed gaskets, they can replace shell and tube heat exchangers and cover the same duties, yet offer numerous advantages in terms of cost, size, and performance.

SondBlock heat exchangers are much less prone to fouling and clogging and only require occasional inspection and cleaning.

Maintenance and cleaning is less time consuming and space demanding as all the panels on the heat exchanger can easily be removed. The entire plate pack is accessible from all sides with no additional space required.

Block heat exchangers in general mark the beginning of a new era of efficient heat transfer, even for the most challenging applications.

Features and benefits

• Perfect as condensers that can be configured to handle duties with or without condensate sub-cooling. SondBlock heat exchangers are also good choices as steam heaters or reboilers for non-cyclic duties, and a smooth and stable steam control system.
• A very durable heat exchanger that excels at handling aggressive and fouling media. Able to handle aggressive media on both sides, it is a perfect solution for crude oil refineries and petrochemical plants. A top choice for the most challenging duties.
• Increased production output due to the extended uptime of the heat exchanger. Very low maintenance and service requirements. Removable side panels provide fast and easy access to the plate pack for inspection or cleaning.

Technical specifications

• Connections from DN50 to DN1000 (2" to 40")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Plates made from AISI 304/316, titanium*
• Shell materials: Carbon steel, stainless steel
• Working pressure up to 25 bar (363psi)**
• Working temperature -20 °C up to 300 °C (-40 °F to 572 °F)

Feature

Our SONDEX® plate and shell heat exchangers (SPS) are perfect choices for condensation and steam heating duties. A fully welded plate pack makes the heat exchangers well-suited for handling aggressive media as well as high pressure levels and temperatures. Less space demanding and much lighter in weight, they are good replacements for shell and tube heat exchangers.

SONDEX® plate and shell heat exchangers (SPS) combine the strengths of both shell and tube heat exchangers and plate heat exchangers, retaining the high working pressure and temperatures of the former coupled with the high efficiency of the latter. A “best of both worlds” solution, our plate and shell heat exchangers provide unmatched performance for a wide range of applications, particularly vapor condensation duties.

Features and benefits

• Very adaptable heat exchanger. An excellent choice for handling condensation duties, especially duties without condensate sub-cooling. They are also perfect steam heaters of clean fluids, demineralized water, and clean thermal oils.
• The heat exchanger is designed to be highly resistant to thermal shocks as well as thermal and pressure fatigue making it very well-suited for cyclic duties and other duties with sudden, large fluctuations in temperature.
• Available in both bolted and fully welded designs. The fully welded types can handle higher temperatures and pressure levels than the bolted types but cannot be opened for cleaning. This can instead be done with CIP (Cleaning in Place) systems.

Technical specifications

• Connections from DN25 to DN300 (1" to 12")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Plates made from AISI 304/316, titanium*
• Shell materials: Carbon steel, stainless steel
• Working pressure up to 40 bar (580 psi)
• Working temperature -10 °C up to 250 °C (14 °F to 482 °F) for bolted types (up to 400 °C (752 °F) for the fully welded types)

Features

Exceptionally well-suited for sludges, slurries, waste water, fouling, liquids with high viscosity, and liquids that contain fibers and solids, our SONDEX® spiral heat exchangers are the definitive solution for applications that require treatment of challenging fluids. The design allows for a countercurrent flow that makes it possible to achieve very close temperature approaches.

Since we use coiled metal sheets instead of tube bundles, we can achieve very high thermal performance without sacrificing the channel gap that lets the media flow unimpeded.

The spiral coil itself also contributes to the turbulent flow, and the single-channel design helps alleviate fouling with a “self-cleaning” mechanism. Accumulated deposits create local increases in velocity, creating a scrubbing effect that is enough to loosen the build-up in fouling in most cases. This allows our SONDEX® spiral heat exchangers to operate in very long sessions without maintenance or cleaning.

Some media, however, are so challenging that the heat exchanger requires more frequent maintenance and cleaning. With this in mind, we have designed hinged covers that are sealed with C-clamps, creating a swing door that is very easy to open and close without any special tools required, letting you access the entire coil for inspection and cleaning.

Features and benefits

• Single-channel design that generates high shear rates which contribute to a self-cleaning effect, preventing clogging of the unit. Spiral heat exchangers are the perfect solution for challenging, high-viscosity media.
• The channel size is selected to fit the flow and qualities of the media. The many variations in diameters and widths of the spiral coil allow for many different combinations, which mean that we can create the optimal solution for every duty.
• Designed to handle a very aggressive temperature program and with a wide range of materials and plate thicknesses available, we customize each spiral heat exchanger to match the requirements of any application.
• Limited need for maintenance and cleaning ensures extended operational uptime. If the need for cleaning arises due to particularly difficult media, the hinged covers provide easy access to the entire heat transfer surface.
• Very compact solutions, our spiral heat exchangers have minimal space requirements. Despite their small stature, the long, curved flow paths allow for very high heat transfer coefficients up to twice as high as their shell and tube counterparts.

Technical specifications

• Connections from DN32 to DN300 (1 1/4" to 12")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Shell materials: Carbon steel, stainless steel
• Spiral materials: Carbon steel, stainless steel
• Working pressure up to 16 bar (145 psi)*
• Working temperatures from -20 °C to 200 °C (-4 °F to 392 °F)

Danfoss and SONDEX® brazed heat exchangers (XB/SL) have been consolidated into a single, combined product portfolio for complete coverage of all applications. The durable, permanently sealed heat exchangers feature advanced technology and superior safety measures designed to provide you with the ultimate in heat transfer with minimal operational costs.

Our brazed plate heat exchangers (XB/SL) offer a compact and flexible solution designed for ultra-efficient performance for your high-pressure or extreme-temperature applications.

Features and benefits

• Low operational costs, small hold-up volume, and high performance make our brazed heat exchanger solutions the ideal choice for many applications. Cut your costs and increase your profits with the help of our brazed portfolio.
• The permanently sealed heat exchangers offer a durable solution with an extended lifetime. Enjoy peace of mind with the double-walled design that provides the ultimate protection against leaks.
• With the energy-optimized, tried-and-true Fishbone technology, or the revolutionary Micro Plate™ technology; the combined Danfoss and SONDEX®product range offers the ultimate in brazed heat transfer solutions.

Technical specifications

• Connections from ¾” threaded BSP/NPT to flange DN150 (6")
• Brazing materials: Copper, copper+, or stainless steel
• Plate materials: AISI 316*
• Plate heights from 0.202 m to 1 m (0.66 – 3.3 ft)
• Flow rates up to 150 m3/h (661 gpm)
• Working pressure up to 40 bar (580 psi)
• Working temperature from -196 °C to 225 °C (-321 °F to 437 °F)

Our SONDEX® plate evaporators are designed to handle advanced evaporation duties. Using semi-welded plate cassettes, the media are guaranteed to never mix. The plate cassettes are designed to ensure the optimal level of turbulence on both sides while providing an even distribution of the media for superior performance and product quality.

Our standard, semi-welded, and brazed SONDEX® plate heat exchangers are outstanding choices for standard evaporation duties.

However, certain applications prove unsuitable for regular heat exchanger types. To help you obtain unsurpassed product quality, we have created exclusive evaporator plates tailored to meet the challenges presented by advanced evaporation applications.

Features and benefits

• Special plate design featuring an extra-large inlet connection for steam. Steam consumption can be reduced when operating with multi-stage evaporators, as the product vapor will serve as the heating media.
• Flexible design that makes it easy to increase capacity by adding additional cassettes or decrease it to save energy. Low residence time leads to perfect evaporation conditions and superior product quality.
• High performance, even with low temperature differences between the media, which is especially great for mechanical vapor recompression (MVR) and thermal vapor recompression (TVR).

Technical specifications

• Connections up to DN600 (24")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Plate materials: AISI 304/316, titanium, SMO, Hastelloy*
• Gasket materials: EPDM-HT, NBR-HT*
• Plate heights up to 1.7 m (5.6 ft)
• Flow rates up to 800 m3/h (3,522 gpm)
• Working pressure up to 16 bar (145 psi)
• Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)

Our SONDEX® plate condensers are the perfect choice for special applications that regular plate heat exchangers cannot handle. Designed to handle high-volume vapor flows, this product features a large inlet for the vapor stream. This, combined with a short residence time creates the optimal condensation conditions– even for low-pressure vapor duties.

Applications that demand flawless condensation conditions are easily managed using our customized standard, semi-welded, and brazed SONDEX® condenser solutions. For low-pressure vapor duties, our specialized condenser plate design accommodates large vapor volumes while maintaining the thermal performance of the plates.

Features and benefits

• Designed specifically for demanding condensation duties that benefit from a special asymmetric plate design that is unavailable for regular heat exchangers.
• Experience the high thermal efficiency of our SONDEX® heat exchangers and enjoy peace of mind with an ideal turbulent flow that reduces the risk of fouling.
• Special Multi-gap plate design that can lower the energy consumption considerably for condensation duties that differ in flow volume.

Technical specifications

• Connections from DN200 to DN800 (8" to 32")
• (Frames designed according to FEA and PED 2014/68/EU (EN13445) and ASME sec VIII, Div. 1 construction standards)
• Plate materials: AISI 304/316, titanium, SMO, Hastelloy*
• Gasket materials: EPDM-HT, NBR-HT*
• Plate heights up to 2.3 m (7.5 ft)
• Flow rates up to 800 m3/h (3,522 gpm)
• Working pressure up to 16 bar (145 psi)
• Working temperatures from -20 °C to 180 °C (-4 °F to 356 °F)