Experts in Brazed Plate Heat Exchangers
SWEP is one of the world’s leading suppliers of brazed plate heat exchangers (BPHEs) and related products and services. SWEP provides efficient solutions for Air conditioning, Refrigeration, Heating, Industry and District Energy with the latest technology. SWEP’s aim is to always offer excellent performance, economy and service.
The BPHE is in principle constructed as a package of corrugated channel plates between front and rear cover-plate packages. The cover-plate packages consist of sealing plates, blind rings and cover plates. Connections are mounted on the cover plates and can be customized to meet specific market and application requirements. During the vacuum-brazing process, a brazed joint is formed at every contact point between the base and the filler material. This design creates a heat exchanger that consists of two separate channels or circuits.
Sealing plates are used to seal off the space between the cover plate and the first and last channel plates. The number of cover plates varies, for example with the type and size of BPHE and its pressure rating. Some BPHEs have a blind ring to seal off the space between the channel plate and the cover plate. In others the blind rings are integrated in the cover plate and first/last channel plates.
There are different BPHE product categories depending on material combinations and design pressures. The standard plate materials are AISI 316 stainless steel, S, vacuum-brazed with a pure copper filler, C, or a nickel-based filler, N. For demanding applications, the plates can be made of SMO 254, a stainless steel with a higher content of molybdenum.
All SWEP’s premises are ISO 9001 and ISO 14001 certified. ISO 9001 is the internationally recognized business standard for quality management. ISO 14001 is the internationally recognized business standard for environmental management. It prescribes controls for those activities that have an effect on the environment. These include the use of natural resources, the handling and treatment of waste, and energy consumption.
All our products are delivered with full traceability and verified functionality. A SWEP BPHE is approved by leading independent third-party international bodies:
- Canada: Canadian Standard Association (CSA)
- Japan: The High Pressure Gas Safety Institute of Japan (KHK)
- USA: Underwriters Laboratories (UL)
- Europe: Pressure Equipment Directive (PED)
- Massachusetts Fuel Gas And Plumbing Code – CMR 248