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CPC Evacuated Tube Solar Collector

A modular solar thermal collector combining evacuated tubes, a heat-transfer manifold and compound parabolic reflectors to capture direct and diffuse solar radiation for hot-water and supplementary-heating systems.

Collector only: this product does not include an integrated storage tank. It must be engineered with an external tank, circulation circuit, controller, heat exchanger and safety components.
CPC Evacuated Tube Solar Collector
CPC Reflector Redirects light toward the absorber
Evacuated Tubes Vacuum-insulated solar absorption
External Tank System component, not included
Modular Array Project-based collector sizing

A Solar Collector, Not an Integrated Solar Water Heater

This distinction matters for engineering, quotations and SEO. A CPC collector supplies captured thermal energy to a designed system; it does not store or deliver domestic hot water by itself.

THIS PRODUCT

CPC Evacuated Tube Collector

  • Evacuated tube absorber assembly
  • CPC reflector behind the tubes
  • Insulated manifold and heat-transfer circuit
  • Mounting structure and collector connections
  • Designed as one module in a larger solar loop
DIFFERENT PRODUCT

Evacuated-Tube Water Heater

  • Usually includes a storage tank
  • May use direct thermosiphon circulation
  • Often sold by tank capacity in litres
  • Closer to a complete domestic hot-water appliance
  • Selected differently from an aperture-area collector array
CPC Collector Array Pump Station Controller Heat Exchanger External Storage Tank

How CPC Reflector Technology Supports Solar Collection

A weather-resistant shaped reflector is positioned behind each evacuated tube to redirect solar radiation that would otherwise pass between tubes or arrive at less favourable angles.

CPC reflector technology optical path diagram
01

Solar Radiation Enters

Direct and diffuse sunlight reaches the collector across changing incidence angles.

02

CPC Redirects Light

The reflector geometry sends additional radiation toward the tube absorber surface.

03

Vacuum Limits Loss

The evacuated space insulates the selective absorber and reduces convective heat loss.

04

Fluid Carries Heat

The selected heat-transfer architecture moves collected energy into the external solar circuit.

Key Components Built Around Thermal Collection

01

Evacuated Glass Tubes

Double-wall borosilicate tubes protect the selective absorber within a vacuum-insulated space.

Reduced environmental heat loss
02

CPC Reflector Profile

Shaped reflective surfaces recover radiation from the gaps and redirect it toward the absorber.

Improved use of collector footprint
03

Heat-Transfer Assembly

Heat-pipe, U-pipe or direct-flow architectures may be developed as separate configurations.

System-specific hydraulic design
04

Insulated Manifold

The header gathers heat from the tube array and connects the module to the external circuit.

Centralized collector connection
05

Modular Frame

A structural frame supports the tube, reflector and manifold assembly for roof or rack mounting.

Repeatable array installation
06

Serviceable Layout

Selected designs allow individual tube or reflector service without replacing the complete array.

Lower service-part burden

Designed to Work Inside a Complete Thermal System

The collector array must be hydraulically and thermally matched to the storage volume, load profile, climate, heat exchanger and backup source.

System Schematic Diagram
01 Collector Array Captures solar thermal energy
02 Pump Station Circulates heat-transfer fluid
03 Controller Manages temperature differential
04 Heat Exchanger Transfers heat to storage or load
05 External Tank Stores heated water or energy
Engineering note: expansion vessel, relief devices, air removal, freeze protection, stagnation strategy, piping insulation and structural mounting must be designed for the project and local regulations.

Technical Specifications

Request Confirmed Datasheet
Market-reference parameters for configuration discussion
Parameter Common Reference / Option Publication Requirement
Collector Type CPC evacuated-tube module Define heat-pipe, U-pipe or direct-flow architecture.
Common Tube Series 6 / 8 / 10 / 12 / 14 / 15 / 16 / 18 / 20 / 22 / 24 Available Cassky series requires confirmation.
Common Tube Format Ø58 × 1800 mm* Must match the final manifold and reflector design.
Aperture Area Approx. 1–3 m² module classes* State the certified value for each model.
Gross Area Model-dependent Publish exact module dimensions and gross area.
CPC Reflector Formed reflective aluminium option Material, coating and reflectance require confirmation.
Manifold Insulated metal housing Header material and insulation must be specified.
Heat-Transfer Medium Water or water-glycol, design-dependent Follow local freeze-protection and material requirements.
Working Pressure Architecture-dependent Never infer pressure rating from another supplier.
Connections Threaded or project-specific Size, standard and array connection require confirmation.
Installation Angle Project-dependent Confirm orientation, roof load, wind and snow conditions.
Certifications Market-dependent List only certificates issued for the exact Cassky model.
Data caution: CPC competitors publish materially different collector architectures. The tube counts and approximate area classes above are SERP-derived market references, not a Cassky performance declaration. Final dimensions, aperture area, efficiency coefficients, stagnation temperature, pressure, flow rate, weight and certifications require an approved model datasheet.

Collector Modules for Engineered Solar Thermal Systems

IMAGE 01

Central Hot Water

Collector arrays connected to external storage for hotels, dormitories and facilities.

IMAGE 02

Heating Support

Solar contribution to low-temperature hydronic systems subject to engineering review.

IMAGE 03

Pool Preheating

Indirect solar heating through an appropriately selected heat exchanger and controls.

IMAGE 04

Process Preheating

Preheating applications evaluated from load temperature, operating hours and climate.

Configurable for Project and Distribution Channels

OEM development can focus on the module architecture, reflector, manifold, connection standard, frame, label, packaging and service-parts plan.

Module Series Tube count and array format
Hydraulic Design Heat-pipe, U-pipe or direct flow
Branding Logo, labels and documentation
Production Planning Pilot, batch and forecast discussion
Send the project location, required load temperature, daily demand, roof area and hydraulic concept. Request Array Selection  →

Frequently Asked Questions

Technical and purchasing questions about CPC collector modules and their use in complete solar thermal systems.

01 Does this collector include a water tank? +

No. It is a collector module. The storage tank, pump station, controller, heat exchanger and safety components are designed separately.

02 What does the CPC reflector do? +

The compound parabolic reflector redirects additional direct and diffuse radiation toward the evacuated-tube absorber, including light that would otherwise fall between tubes.

03 How is collector size selected? +

Selection is based on aperture area and tested performance together with climate, load temperature, daily energy demand, storage, roof area and system losses—not tank litres.

04 Can several modules be connected together? +

Yes, subject to model-specific pressure drop, permitted series length, flow balancing, pipe sizing and control design. The final array must be engineered.

05 Can it be used in freezing climates? +

A suitable closed-loop water-glycol design may be considered, but freeze protection depends on the entire system, fluid concentration, controls and installation details.

06 Is heat-pipe the same as U-pipe? +

No. They are different heat-transfer architectures with different hydraulic and service characteristics. The exact Cassky configuration must be identified in the model datasheet.

07 What can be customized? +

Potential options include module size, tube count, transfer architecture, reflector, manifold, connections, frame, labeling, manuals and packaging, subject to engineering and order terms.

08 What information is needed for a quotation? +

Provide destination country, application, design temperatures, daily load, roof area, storage concept, required certifications, quantity and delivery plan.

Need a collector array recommendation? Share the thermal load and system concept for preliminary selection.
Ask an Engineer  →

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