Fully Welded Plate Heat Exchanger for Variable Flow Heat Recovery

Product Description

Product Description

1. Introduction
The fully welded plate heat exchanger features a corrugated plate structure similar to traditional plate heat exchangers but is sealed using advanced full-welding technology, eliminating the need for gaskets. With multiple metal and alloy material options, it can operate at temperatures up to 400°C and pressures up to 3.5 MPa. Its compact design, high heat transfer efficiency, and flexible application make it an innovative and highly efficient heat exchange solution that combines the advantages of plate heat exchangers while overcoming the limitations of shell-and-tube heat exchangers.

2. Internal Structure of Fully Welded Plate Heat Exchanger
The fully welded plate heat exchanger has a simple yet robust structure, consisting of:

Front and rear frame plates (pressure plates)
Heat exchange plate pack
Inlet and outlet connections with flanges
Fastening bolts and support components

Depending on operational requirements, a variety of metal plate materials are available, including 304, 316L, 254SMo, Hastelloy, titanium, and nickel plates.

3. Advantages of Fully Welded Plate Heat Exchangers
Compared to shell and tube heat exchangers, fully welded plate heat exchangers offer:

Higher heat transfer efficiency
Smaller footprint and compact design
Lighter weight and strong adaptability
Lower heat loss and cost-effectiveness

Compared to traditional gasketed plate heat exchangers, fully welded plate heat exchangers can withstand higher operating pressures while avoiding the risks and maintenance associated with gasket aging and leakage due to thermal expansion.

Parameter	Specification
Heat Transfer Area	Customized as per requirements
Plate Material	304/316L/Ti/C276/Smo254/904L/Ni/Palladium
Working Pressure	3MPa (Customized options available)
Working Temperature	Max. 220ºC (Depending on material)
Application Industries	Chemical, Oil & Gas, Power, HVAC, etc.

Detailed Photos

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Application

NMP-Compatible Fully Welded Plate Heat Exchanger for Polar Chemical Processes

"NMP Fully Welded Plate Heat Exchanger" is not a universally standardized term. Its core meaning refers to a fully welded plate heat exchanger specifically designed for NMP (N-Methyl-2-Pyrrolidone), a highly polar solvent, and engineered to meet the heat-transfer requirements of NMP media.
It adopts a fully welded, gasket-free structure, making it suitable for high temperature, high pressure, strong corrosiveness, and operating conditions where NMP tends to accelerate gasket aging and failure.

The following explanation is organized around the core definition, key features, NMP-specific design considerations, and application scenarios.

Core Definition and Structure

Fundamentals of Fully Welded Plate Heat Exchangers
A fully welded plate heat exchanger uses corrugated plates made of special stainless steels or titanium alloys as the heat-transfer elements. The plate edges are laser-welded or TIG-welded into an integrated plate pack, eliminating non-metallic sealing gaskets and forming a fully metallic, sealed flow channel.

This design offers a wide operating range, with temperature resistance from –195 °C to 538 °C and pressure resistance from full vacuum up to 8.2 MPa, combining high heat-transfer efficiency with excellent sealing reliability.

NMP-Specific Adaptation
NMP is a widely used solvent in the chemical industry, characterized by strong solvency and a tendency to accelerate rubber gasket aging at elevated temperatures, while often operating under high-temperature and high-pressure conditions.
By adopting a fully welded structure, this type of heat exchanger eliminates gasket-related failure risks. Corrosion-resistant materials compatible with NMP (such as 316L stainless steel and duplex stainless steel) are selected, and the flow-channel design is optimized to suppress NMP decomposition or fouling during heat-exchange processes.

Pricing & Customization Notice

Multiple specifications are available, and products can be customized based on actual working conditions. The listed price is for reference only. Please contact us for an accurate quotation.

Our Main Products

Welded Plate-and-Block Heat Exchanger

Spiral Plate Heat Exchangers

Stainless Steel Tube Heat Exchanger

Heat Exchanger Plate

Heat Exchanger Gasket

Plate Heat Exchangers

Wound Spiral Heat Exchanger

Stainless Steel Plate Heat Exchanger

Brazed Plate Heat Exchanger

Note

Multiple specifications are available, and products can be customized based on actual working conditions. The listed price is for reference only. Please contact us for an accurate quotation.

Company Profile

Shanghai Aibao Industrial Co., Ltd. is committed to the production of heat exchangers. The manufacturer specializes in the design, production, customization, technical improvement, product upgrading, sales, maintenance, testing, and repair of heat exchange equipment, including stainless steel plate heat exchangers, fully welded plate heat exchangers, brazed plate heat exchangers, and asphalt ammonia steam heat exchanger units. The company has strong technical expertise and advanced manufacturing capabilities, utilizing key equipment such as 6,000-10,000-ton hydraulic presses. It continuously develops new products that meet international standards. Adhering to the principle of "customer first," we provide high-quality services to our clients. We warmly welcome customers to contact us for cooperation and business negotiations.

Our Advantages

• 1. Uncompromising Quality
With our ISO certification and TMQ management, plus a rigorous quality check, we embody the belief that 'quality is our culture.' Partnering with us ensures that your investments are secure and your business is protected.

• 2. Empowered Team
We boast a stronger and highly professional team of technicians and a dedicated R&D department.

• 3. Innovative Design
Our new design in plate heat exchangers features vibrant color brilliance, delivering reliable performance with extensive varieties and complete specifications.

• 4. Competitive Pricing
Outshine your competitors with our dependable quality, superior materials, cutting-edge technology, and meticulous craftsmanship. Complete specifications with guaranteed quality and quantity, all backed by our esteemed reputation.

• 5. Efficient Shipping & Packaging
Typically delivered in 7 working days, accepting MQQ for your testing needs.
Goods are protected with sturdy plywood cases and cartons.

• 6. Flexible Payment Terms
We accept T/T, Visa, Western Union, and PayPal.

• 7. Exceptional Service, Exceptional You: We deliver not just heat transfer solutions but also personal guidance to ensure our products and services exceed your expectations, a commitment to eternal customer satisfaction.

Our Customers

Certifications

FAQ

1.Can I have your samples?
Yes, we can provide samples for you to check our quality.

2. What is your leading time for the products I need?
Generally 7 working days. lt depends on the quantities you request.

3. Do you have your own factory?
Yes, welcome to visit our factory and check our products.

4.What is the warranty for your products?
We provide one year warranty for all the items we sold.

5.What payment terms do you accept?
Trade Assurance/TT/ Letter of Credit/ Western Union.

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