Gasketed Plate Heat Exchangers
Designed for flexibility and easy maintenance, these exchangers allow quick plate replacement and capacity expansion. Ideal for HVAC, food processing, and general industrial applications.
Semi Welded Plate
Heat Exchangers
Heat Exchangers
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Semi Welded PHE Series
Semi Welded Plate Heat Exchangers
Multi-purpose industrial thermal solution
SRJ Heat Exchangers manufactures semi welded plate heat exchangers for applications where standard gasketed units are not suitable. These heat exchangers are specifically designed to handle aggressive media, high pressure, and demanding temperature conditions while maintaining excellent thermal efficiency.
By combining welded plate channels with gasketed sections, semi welded plate heat exchangers offer enhanced safety, longer service life, and reduced leakage risk, making them ideal for critical industrial processes.
For Modern Requirements
Semi Welded PHE for Modern Industry
Our semi welded heat exchangers are engineered for processes that require both high performance and chemical resistance.
Welded plate channels
for aggressive or hazardous fluids
Higher design pressure capability
than fully gasketed units
Excellent thermal efficiency
with close temperature approach
Reduced gasket exposure
for improved reliability
Easy maintenance
on gasketed side
Related Products
Other PHE Solutions
Explore our full range of plate heat exchanger technologies for every industrial application.
Welded Plate Heat Exchangers
Built for high-pressure and high-temperature applications without gaskets. Perfect for heavy industrial operations requiring robust and leak-proof performance.
Wide Gap Plate Heat Exchangers
Specially designed for fluids containing fibers, particles, or high viscosity. Wide channel spacing minimizes clogging while maintaining efficient heat transfer.
Brazed Plate Heat Exchangers
Compact and highly efficient units sealed by copper or nickel brazing. Ideal for refrigeration, HVAC, and compact system installations.
Spiral Heat Exchangers
Designed for viscous, fouling, and slurry-type fluids in demanding industrial environments. The spiral flow design reduces clogging and ensures efficient, reliable heat transfer.
Industrial Applications
Widely Used Across UAE Industries
Semi welded plate heat exchangers are widely used in industries where process conditions are extreme:
HVAC and chilled water systems
Industrial process cooling and heating
Food and beverage processing plants
Chemical and pharmaceutical industries
Oil, fuel, and lubricant cooling
Heat recovery and energy saving systems
Each unit is customized based on operating pressure, temperature, and fluid compatibility to ensure reliable performance.
Materials & Construction
Industrial Grade Materials
Our semi welded plate heat exchangers are built using high-grade materials to withstand demanding operating environments:
- Plate materials: Stainless steel, titanium, special alloys
- Welded channels: Laser-welded for leak-free performance
- Gasket materials: EPDM, NBR, FKM (Viton)
- Frame materials: Heavy-duty carbon steel or stainless steel
This construction ensures mechanical strength, chemical resistance, and long service life even in harsh process conditions.
Why Choose This
Why a Semi Welded PHE for Your UAE Plant?
Compared to conventional heat exchangers, a semi welded plate heat exchanger offers higher efficiency, easier maintenance, and better long-term economics.
Higher Efficiency
Semi welded PHEs are engineered to handle aggressive refrigerants such as ammonia (NH₃), CO₂, propylene, and hydrocarbons on the welded side — making them the standard choice for industrial refrigeration plants across UAE and GCC.
Easier Maintenance
The modular plate design allows easy opening, cleaning, and inspection without any specialised tools — ideal for UAE facilities with local maintenance teams.
Scalable Capacity
Easily expand capacity as your process grows — without replacing the entire unit. Simply add plates to increase thermal performance or flow rate.
Long-Term Value
Maintenance remains consistent over years of operation, making it a smart long-term investment for industrial applications in Gulf climate conditions.
FAQ
Frequently Asked Questions
Can't find your answer? Contact our technical team directly — we respond within 24 hours for UAE and GCC enquiries.
A semi welded plate heat exchanger combines welded plate pairs on one side and gasketed plates on the other. This design allows safe handling of aggressive or refrigerant fluids while still providing easy maintenance. It is commonly used where higher pressure resistance and improved leak safety are required without compromising serviceability.
When your process involves corrosive media, ammonia, or high-pressure fluids where gasketed units may fail.
Semi welded plate heat exchangers are widely used in refrigeration systems, chemical processing, energy plants, oil and gas applications, and industrial cooling duties. These industries benefit from the combination of high thermal efficiency, compact design, and enhanced safety provided by the gasket-weld hybrid construction.
Yes, semi welded plate heat exchangers are designed for practical maintenance. The gasketed side allows plates to be opened for inspection and cleaning, while the welded side ensures secure operation with demanding fluids. Proper gasket selection plays an important role in maintaining long-term performance and leak-free operation.
Yes, semi welded plate heat exchangers are ideal for evaporators and refrigeration applications involving ammonia or other refrigerants. The welded plate channels safely contain the refrigerant, while the gasketed channels allow easy servicing, making this design reliable for continuous industrial operation.
Share your operating conditions with our technical team, and we will recommend the right model and provide a quote.
Get a Custom Plate Heat
Exchanger Solution
We provide plate heat exchanger solutions designed as per your operating conditions, flow rates, and temperature requirements — for reliable and long-term performance. Contact us today for technical support and quotation for your UAE or GCC facility.
Our Partners
Trusted by Global Brands
At SRJ Plate Heat Exchangers, we work closely with leading industrial brands, delivering reliable heat exchanger solutions backed by quality, performance, and long-term trust.
