Welded Block Heat Exchanger - Yangzhou Panstar Heat Exchanger Equipment Co., Ltd.

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PanBloc

PanBloc welded plate heat exchanger is compact and efficient, although fully welded, is totally accessible on both sides. With no interplate gaskets, problems associated with conventional gasketed plate heat exchangers, such as gasket compatibility, temperature and pressure , are eliminated.

The heart of PanBloc consists of laser welded corrugated heat transfer plates of stainless steel or other exotic metals. The heart is enclosed and supported by four corner columns, upper and lower heads and four panels. The totally bolted design allows quick disassembly of the panels for inspection, service and cleaning.
Adjustable and removable baffles allow easy variation of pressure drop to satisfy any thermal performance requirement.

Welded block heat exchanger is a compact, fully welded plate heat exchanger designed for high-pressure, high-temperature, and corrosive applications. Made of corrugated metal plates welded into sealed blocks, it eliminates gaskets to ensure high sealing reliability, strong resistance to thermal stress, and stable long-term operation. Panstar provides high-quality welded block heat exchangers for demanding industrial processes.

How It Works

Hot and cold fluids flow through separate welded channels formed by the corrugated plates. The plate pattern generates turbulence, increasing heat transfer efficiency even under high-load conditions. Heat is transferred through the thin metal plates while the welded joints prevent cross-contamination and leakage, ensuring safe and efficient operation.

Application of Welded Block Heat Exchanger

Chemical and petrochemical processing: Heating, cooling, condensation, and evaporation

Oil and gas: Process cooling, heat recovery, and offshore applications

Power generation: High-temperature auxiliary system cooling

Energy recovery systems: Waste heat utilization in industrial processes

Refrigeration and heat pump systems: Condensers and evaporators under high pressure

Quality System

• ASME U Stamp

• CE Directive 2006/42/EC

• ISO9001

• ISO14001

• ISO45001

• CCS

PanBloc Welded Plate Heat Exchanger Specification

Model	Maximum Dimension (mm)			Max. Area	Max. Connection Size
Model	Length	Width	Height	(m²)	DIN (inch)
PB15	370	330	700	2	DN125 (5")
PB20	460	420	780	6	DN200 (8")
PB30	520	480	1600	26	DN250 (10")
PB40	696	656	1480	33	DN300 (12")
PB50	920	880	2250	90	DN400 (16")
PB75	1300	1260	3350	330	DN700 (28")
PB120	2200	2160	3600	840	DN1000 (40")

Customer Benefits

• No interplate gaskets

• Total accessible on both sides

• Temperature cross capability

• Bolted construction

• Small footprint and compact

• Easy cleaning and maintenance

• Proven installations

Material

AISI 304L

AISI 316L

254 SMO

Titanium

Nickel

Hastelloy

Duplex

Maximum Heat Transfer Area

840 m²

Mechanical Design

Vacuum to 35 barg

-30 to 350 °C

Sheet material

Maintenance

Welded block heat exchangers are designed for low maintenance operation. The absence of gaskets eliminates routine gasket replacement. For most applications, maintenance involves periodic inspection and cleaning using chemical cleaning (CIP) or controlled flushing, depending on the process medium. The robust welded structure reduces downtime and maintenance costs.

Panstar Manufacturing & Service Capability

Panstar is a Sino-Japanese joint venture specializing in plate heat exchangers and advanced heat transfer solutions. With decades of experience in thermal engineering and manufacturing, Panstar delivers reliable welded heat exchanger products for demanding industries.

Panstar operates a modern production base covering over 50,000 m², equipped with automatic laser welding machines and hydraulic presses up to 20,000 tons, ensuring precise plate forming and consistent weld quality. High levels of manufacturing automation enhance product reliability, durability, and delivery efficiency.

In addition to manufacturing, Panstar provides comprehensive technical services, including:

Heat exchanger selection and thermal calculation
Custom design based on process conditions
Performance testing supported by in-house thermal test facilities
Technical documentation and engineering support