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Heat Pump Plate Heat Exchanger

The Heat Pump Plate Heat Exchanger (HP-PHE) features vacuum-brazed SUS316 corrugated plates designed for high-efficiency thermal transfer in residential and commercial heat pumps.

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Product Overview
The Heat Pump Plate Heat Exchanger (HP-PHE) features vacuum-brazed SUS316 corrugated plates designed for high-efficiency thermal transfer in residential and commercial heat pumps. Engineered for reversible cycles, it acts as a high-performance condenser or evaporator to optimize energy efficiency (COP) in air-to-water, water-to-water, and geothermal heat pump systems.

Technical Parameters & Compliance

Item	Specification Range	Google EEAT & Buyer Verification
Plate Material	SUS316 / SUS316L	Low-carbon grade; high pitting resistance for hydronic loops
Brazing Material	99.9% Pure Copper	Ensures a continuous metallic seal built for high-pressure gas
Design Pressure	30 bar – 45 bar (Custom models up to 50 bar available)	Fully optimized for high-pressure eco-refrigerants (R32, R410A)
Test Pressure	45 bar – 65 bar	100% pneumatic and hydraulic burst pressure validated
Operating Temp.	-196°C to +200°C	Handles extreme superheated gas down to cryogenic evaporation
Applicable Media	R32, R290 (Propane), R410A, R454B, Water, Glycol solutions	High chemical compatibility with natural & synthetic refrigerants
Certificates	ASME (U/U2), National Board, AD2000	100% compliant with Western HVAC & pressure equipment codes
Leak Test	100% Helium Leak & Pressure Tested	Zero-leakage factory guarantee against refrigerant emissions

Core Technical Advantages (Why Heat Pump OEMs Specify Us)
Dual-Phase Flow Optimization: Engineered with customized internal distribution systems that ensure uniform refrigerant spreading during evaporation, while maintaining proper liquid drainage and low pressure drop during condensation cycles.
Maximizes System COP/EER: High-turbulence chevron corrugated patterns allow a close temperature approach (down to 1°C). This maximizes the heat pump's Coefficient of Performance (COP) and lowers seasonal power consumption.
R290 ATEX-Ready Compliance: The ultra-low internal holding volume drastically reduces the required hydrocarbon (R290/Propane) refrigerant charge, helping manufacturers easily meet strict safety limits for explosive/flammable refrigerants.

Certified Manufacturing & Quality Control
Global Building & Pressure Compliance: Manufactured and stamped in strict accordance with ASME (U & U2) and European AD 2000-Merkblatt standards to clear regional building and safety inspections.
ISO 3834-2 Precision Brazing: Automated vacuum furnace bonding eliminates micro-porosity and joint dry spots, ensuring the frame can withstand continuous pressure pulsations from variable-speed inverter compressors.
100% Helium Mass Spectrometer Testing: Every single heat exchanger is subjected to a comprehensive vacuum helium test to ensure zero risk of internal cross-contamination between the refrigerant loop and the domestic water circuit.

OEM/ODM & Engineering Support
Thermodynamic Selection Sizing: Custom software configuration optimized for heat pump parameters (evaporating/condensing temperature profiles, flow rates, glycol concentrations, and delta T).
Asymmetric Channel Geometry: Available with custom channel distributions to perfectly balance the high volumetric flow of water against the lower volumetric flow of high-pressure refrigerant.
Turnkey Packaging Accessories: Supplied with custom-fit, fire-retardant EPP/Polyurethane insulation jackets to eliminate condensation during cooling cycles and maximize thermal retention during heating.

FAQ

Q: Can this heat exchanger be used in reversible heat pumps that switch between heating and cooling?

A: Yes. Our HP-PHEs are specifically engineered for reversible systems. The internal channel geometry and distribution plates are optimized to handle both the gas-liquid separation required for efficient evaporation and the high-velocity superheated vapor entry during condensing cycles.

Q: How does the unit resist thermal shock and fatigue caused by variable-speed inverter compressors?

A: Inverter compressors frequently modulate capacity, causing continuous temperature and pressure fluctuations. Our ISO 3834-2 certified vacuum brazing fuses the plates at thousands of structural nodes. Combined with reinforced external frame plates, this layout distributes mechanical stress and prevents fatigue cracking at the refrigerant ports.

Q: Is copper-brazing fully compatible with flammable natural refrigerants like R290 (Propane)?

A: Absolutely. Copper-brazing is chemically inert to R290 and synthetic refrigerants. Furthermore, our narrow channel design minimizes the internal holding volume, allowing you to design a high-capacity heat pump while keeping the total R290 charge below the strict regulatory thresholds ($150\text{g}$ or $494\text{g}$ limits).

Q: What connection types do you provide for integration into residential air-to-water monobloc heat pumps?

A: We offer copper solder (sweat) connections on the refrigerant side for leak-free brazing, and BSP/NPT threaded male connections or standard union joints on the water side to allow fast, direct connection to standard Western hydronic plumbing.

Q: What are your shipping port capabilities and bulk manufacturing lead times?

A: We manage global logistics via Qingdao Port under standard B2B terms (FOB, CIF, DDP). Standard production lead times for OEM heat pump batch orders are 15–20 days, complete with traceable mill certificates and pressure test logs included in the cargo documentation.

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Heat Pump Plate Heat Exchanger

Technical Parameters & Compliance

FAQ

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