Varalka Engineers Private Limited

This type of Semi Welded Plate Heat Exchanger uses a unique approach: alternating channels are laser welded. Aggressive media (for example Ammonia) flows in the welded channels. Non-aggressive media (like brine or water) passes through the gasketed channels. Despite partial welded construction, the unit can easily be disassembled to replace gaskets or to take care of other maintenance.

Semi Welded PHE product program included 9 plate sizes with connection sizes from DN25 to DN250. All plate sizes are available in high and low theta versions as well as shallow and deep corrugations. By combining different plate patterns, six different channel types are possible resulting in an optimally sized heat exchanger with an excellent price-performance ratio and low lifecycle cost.

Heat transfer plates are available in SS304, S316L, SMo254, Titanium Gr 1 and Gr 11, Nickel 200/201, Hastelloy c276, C2000.

Gaskets are available in Nitrile (NBR), Hydrogenated NBR (HNBR), EPDM, FKM, Neoprene (CR), PTFE

This type of Semi Welded Plate Heat Exchanger uses a unique approach: alternating channels are laser welded. Aggressive media (for example Ammonia) flows in the welded channels. Non-aggressive media (like brine or water) passes through the gasketed channels. Despite partial welded construction, the unit can easily be disassembled to replace gaskets or to take care of other maintenance.

Semi Welded PHE product program included 9 plate sizes with connection sizes from DN25 to DN250. All plate sizes are available in high and low theta versions as well as shallow and deep corrugations. By combining different plate patterns, six different channel types are possible resulting in an optimally sized heat exchanger with an excellent price-performance ratio and low lifecycle cost.

Heat transfer plates are available in SS304, S316L, SMo254, Titanium Gr 1 and Gr 11, Nickel 200/201, Hastelloy c276, C2000.

Gaskets are available in Nitrile (NBR), Hydrogenated NBR (HNBR), EPDM, FKM, Neoprene (CR), PTFE

Semi Welded PHE product program included 9 plate sizes with connection sizes from DN25 to DN250. All plate sizes are available in high and low theta versions as well as shallow and deep corrugations. By combining different plate patterns, six different channel types are possible resulting in an optimally sized heat exchanger with an excellent price-performance ratio and low lifecycle cost.

Heat transfer plates are available in SS304, S316L, SMo254, Titanium Gr 1 and Gr 11, Nickel 200/201, Hastelloy c276, C2000.

Gaskets are available in Nitrile (NBR), Hydrogenated NBR (HNBR), EPDM, FKM, Neoprene (CR), PTFE.

Varalka Semi Welded Plate Heat Exchangers - assembled with laser welded modules imported from thermowave of Germany - are an industry bench mark for quality, reliability and consistent performance over long periods.

We are leading providers of Ammonia Evaporator and have supplied many PHEs for ammonia chillers. 

Semi Welded PHE product program included 9 plate sizes with connection sizes from DN25 to DN250. All plate sizes are available in high and low theta versions as well as shallow and deep corrugations. By combining different plate patterns, six different channel types are possible resulting in an optimally sized heat exchanger with an excellent price-performance ratio and low lifecycle cost.

Heat transfer plates are available in SS304, S316L, SMo254, Titanium Gr 1 and Gr 11, Nickel 200/201, Hastelloy c276, C2000.

Gaskets are available in Nitrile (NBR), Hydrogenated NBR (HNBR), EPDM, FKM, Neoprene (CR), PTFE