Refrigerants: R407C, R22, R404A, R410A, R134a
Design temperature: ¨C196 - +200ºC/¨C320 - +392ºF
Standard design pressure: 30 bar/435 psi
Test pressure: 45 bar/653 psi
Standard plate material: AISI 316L
Brazing material: Copper
Other configurations available on request

Envelop thickness of fins A (MM )	Weight(KG)	Volume of one-side passage(L)	Effective working area(M 2 )
16+2.62N	57+1.26N	0.3(N-2)	0.3X(N-2)

Optional connections of Model B3-300
Type of connections	Model of connections
Screwless welded connection	S407/ S411/ S413/ S414/ S520/ S521/ S923/ S925/S930/S931/S040/S041/SD442/SD966/SD990/SD998
Taper male thread connection	SR520
Straight male thread connection	SW414/SW520/SW924/SW930/SW040
Straight female thread connection	SN404
Clipped connection	SJ924/SJ930
Flanged connection	DN105 single flange
Refer to the list of connections for detailed dimensions

Parameters of Model B3-300
Working area per plate	0.3(m 2 )
Designed pressure	1.0Mpa	3.0Mpa	4.5Mpa
Testing pressure	1.5Mpa	4.5Mpa	6.5Mpa
Working temperature	-160 to 200
Max flowrate of water side	160 m 3 /h
Max plate assembly	320 PCS
Type of plate passage	D
Plate material	Stainless steel 316L
Mounting opinion	Footing, Lug, Temperature detection tube
Application	Heat pumps, central air-conditioning, waste heat reclaim, refrigeration equipment, industrial water coolers, oil coolers, etc.

Brazed heat exchanger technology description 
The Brazed heat exchanger is one of the most effective methods to transmit heat between the medium. The whole set of Brazed heat exchanger is composed by the ripple channel board, they combine together to form the complex Brazed heat exchanger channel. The cold and hot media assignment is completed through these channels. The cold and hot media is separated in both sides of the corrugated sheet, close as far as possible but not mixing; When they flow shoulder to shoulder, the quantity of heat is transmitted from one medium to another medium. The product concept based on modular as well as the parts that definitely can be customized, we always can find the most suitable solution for the application of each kind of heat exchanger. 

Brazed heat exchanger structure principle 
The Brazed heat exchanger on the whole is composed of a group of corrugated pipeline board between front and back baffles. The baffle groupware of Brazed heat exchanger is composed of seal board, seal ring and baffles. The Brazed heat exchanger connector type can be customized according to specific request of the market and the application domain. In the vacuum Brazed process, each contact point between the slab and the filling material (braze welding solder) can form a weld point. Using such a design, it can make the heat exchanger which is composed of two different channels or the return route. The seal board is used in the crevice between seal baffle and the first and last channel board. The quantity of baffles is decided by the type, size and pressure rank and so on. Some are loaded with the seal ring, used in the crevice between the sealing channel board and the baffle. Some seal rings and the baffle as well as the first or the last channel boards combine a whole. 

Brazed heat exchanger passage type 
In a Brazed heat exchanger, the slab number usually reaches several dozens pieces. The liquid flow of Brazed heat exchanger between boards can be combined neatly according to the concrete service condition. Generally there are all kinds of combination of single-flow and multi-flow. If both sides medium are even single-flow, it is available to make one side medium as the single-flow and the other side medium as the double-flow, and also both sides medium as the different multi-flow combination. The standard combination of Halley Brazed heat exchanger is that both hot and cold sides are single-flow, and can be customized to be multi-flow heat exchanger as per the customer request.