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Flat Plate Solar Collector front view
Frame and connection detail showing casing depth and side profile
Absorber cutaway showing glazing, flow channels, and insulation
Collector array installed on a project roof
Technical dimensions drawing showing connection positions
01 / 05

Flat Plate Solar Collector

A modular solar thermal collector engineered to transfer sunlight into usable heat through a selectively coated absorber and liquid flow circuit. Built for pressurized domestic, commercial and project-scale hot-water systems.

2.0–3.0 m²* Cu/Al or Full Copper* Water / Glycol Circuit OEM Available
Request Collector Configuration →

Collector-only product: storage tank, pump station, controller, expansion vessel and mounting accessories are configured separately. *Market-reference options; final CASSKY data require model confirmation.

Collector panel, not a complete heater

This page is for the glazed heat-collection panel that connects to an external hydraulic circuit. It should be specified by area, absorber construction, flow layout, pressure class and tested performance—not by storage-tank litres.

THIS PRODUCT

Flat Plate Solar Collector

Supplied item Glazed collector panel with internal liquid circuit
Selection basis Gross/aperture area, absorber, pressure, connections and efficiency data
System role Captures heat and transfers it to water or heat-transfer fluid
DIFFERENT PRODUCT

Flat Plate Solar Water Heater

Supplied item Collector plus storage tank and support frame
Selection basis Tank capacity, household demand and complete-system pressure
Typical layout Compact roof-mounted thermosiphon package
ALTERNATIVE TECHNOLOGY

Evacuated Tube Collector

Absorber format Individual vacuum tubes rather than one glazed flat panel
Service approach Tube-level replacement may be possible
Selection note Compare climate, operating temperature and maintenance strategy
Send the system design conditions—not only the panel quantity. Required: location, load profile, target water temperature, circuit type, roof layout and applicable certification.

One sealed panel. Five thermal layers.

Flat plate solar collector cutaway
01

Solar glazing

Tempered low-iron textured glass is a common option for transmitting sunlight while protecting the internal assembly.

02

Selective absorber

A coated metal sheet absorbs solar radiation and limits radiative heat loss. Copper/aluminium or full-copper structures can be evaluated.

03

Hydraulic circuit

Headers and risers carry water or glycol solution. Tube material, layout, connection standard and pressure rating are model-specific.

04

Insulation & casing

Back/edge insulation and an aluminium enclosure reduce thermal loss and protect the collector in outdoor service.

*Illustrative construction options only.

From sunlight to stored heat

The collector is one heat-generating component inside a designed solar loop. Pumps, controls and freeze/overheat protection depend on the complete hydraulic scheme.

STEP 01
☀

Solar transmission

Radiation passes through the glazing and reaches the coated absorber surface.

STEP 02
↧

Heat absorption

The absorber converts incoming solar energy into heat across the metal sheet.

STEP 03
≈

Fluid transfer

Heat passes into water or glycol solution circulating through headers and risers.

STEP 04
□

Tank charging

The solar circuit delivers heat to an external storage tank, directly or through a heat exchanger.

Direct circuit System water may pass through the collector where water quality, pressure and freeze conditions permit.
Indirect glycol circuit A closed solar loop transfers heat through a coil or external exchanger for freeze protection and hydraulic separation.

Technical specification scope

Request Confirmed Datasheet
Collector type Glazed liquid flat plate
Reference gross area 2.0 / 2.5 / 3.0 m²*
Reference dimensions 2000 × 1000–1500 × 80 mm*
Casing Aluminium alloy option*
Glazing Low-iron tempered glass*
Heat-transfer medium Water / antifreeze solution*
Absorber structure Cu/Al or full copper*
Surface Selective coating option*
Reference absorptance ≥ 0.93*
Reference emittance ≤ 0.15*
Bonding method Model-dependent
Insulation Material / thickness to confirm
Flow pattern Header & riser*
Reference header 22 mm*
Reference risers 10 mm class*
Connections 22 mm / 3/4 in option*
Rated working pressure 0.6 MPa class*
Maximum pressure Exact model only
Optical efficiency η₀ Test report required
Heat-loss coefficients a₁ / a₂ required
Aperture area Model-specific
Stagnation temperature Test report required
Pressure drop Flow-rate dependent
Test standard ISO 9806 / applicable scheme*
Reference inclination 15°–75°*
Orientation Portrait / landscape by model
Mounting Pitched / flat roof option
Array connection Project-engineered
Wind / snow load Site-specific verification
Certification Exact model and market only

Configured for the system. Prepared for your market.

Flat plate solar collectors for villas and multifamily housing
01 / DOMESTIC HOT WATER

Villas & multifamily housing

Collector arrays paired with central or individual storage for pressurized hot-water production.

Flat plate solar collector system for hotels and resorts
02 / HOSPITALITY

Hotels & resorts

Roof-mounted solar fields designed around occupancy, peak draw and backup heating strategy.

Flat plate solar collectors for schools and commercial facilities
03 / COMMERCIAL

Schools & facilities

Modular collectors for shower blocks, kitchens and service-water loads.

Flat plate solar collector system for industrial process heat
04 / PROCESS HEAT

Low-temperature industrial demand

Preheating for washing, cleaning or other processes after load and temperature-profile review.

Flexible customization. Flexible production scheduling.

MODEL CONFIGURATION Area, absorber, casing and connections*
BRAND PACKAGE Logo, label, carton and manual*
ORDER PLANNING Mixed models and staged shipment by agreement*

Partner With Cassky for Reliable Clean Energy Solutions

Cassky specializes in high-performance heat pump systems and solar energy solutions, providing reliable products and customized services for global distributors, engineering companies, contractors, and brand partners.

1. Distributors & Dealers Build long-term partnerships with reliable heat pump and solar energy products, competitive supply capability, and professional support.
2. Engineering Companies & Contractors Get technical assistance, project solutions, and product recommendations for residential and commercial energy projects.
3. OEM / Brand Partners Access customized manufacturing, private label solutions, and flexible cooperation options for your market.

Request a Quote

Tell us about your product or project requirements. Our team will contact you to discuss the next step.