Laser marking

SIA "EKO AIR" offers services of laser marking 
(drawing logo of the company, 1D or 2D bar code, etc.)

Basics of heat transfer

Heat exchangers are to best facilitate heat transfer between two or more heat transfer fluids without mixing....

Time to innovate innovation

The brazed plate heat exchanger (BPHE) is a product of modern innovative technology. Production of BPHE started only 25 years back...

Home / Heat exchangers / NB - Range of brazed plate heat exchanger


Production and head office:

"Eko Air" Ltd., 30D, Miera str., Salaspils, Latvia LV-2169




NB 328

Brazed plate heat exchanger. Application: refrigeration systems, heat pumps, substations and so on. Design pressure - 31 bar at +200°С.

  • Chevron angle: H
  • Max. No of plates: 60
  • Port size: 22 mm
  • Volume of channel: 0,054 litres
  • Max. flowrate: 6 m3/h
  • BPHE dimension: 323 mm х 90 mm
  • BPHE height dim.: 22,1 mm. +5,7 mm. + 2,35 mm.х N

Connectors - different combination of diametres from  6 mm to 25 mm. As standard - Universal threaded solder ¾”ISO G.

  • Height of connector: 22,1 mm
  • Types of connections: external and internal thread, solder.
  • Weight: 1,16 kg+0,089 kg.х N
  • Stud bolts: 2хМ8


  • Corrugated plates: stainless steel AISI316L (1.4404)
  • Reinforcement plates: stainless steel AISI304 (1.4301)
  • Standard connectors: stainless steel AISI304 (1.4301)
  • Brazing filler: copper 99,99%

Versions: single-pass, two stage, multipass, X, Z, U
М of connectors: 8