Split Pressurized Solar Water Heating System

Definition of Split Pressurized Solar Water Heating System

The Split Pressurized Solar Water Heating System is a high-efficiency thermal solution with separated collector and tank design, engineered for commercial and residential hot water supply under pressurized operation. The system supports modern architecture without roof load limitations and ensures stable hot water delivery across variable climates.

Technical Parameters & Specifications

• Operating Type: Split pressurized, forced circulation

• Heat Transfer: Copper coil / Internal heat exchanger

• Working Pressure: 0.6–1.0 MPa

• Collector Type: Flat plate / All-glass evacuated tube

• Tank Volume Options: 100L / 150L / 200L / 300L / 500L

• Tank Shell: Color steel / Stainless steel (SUS304 / SUS316)

• Insulation Material: Polyurethane foam ≥50 mm

• Controller: Intelligent differential temperature control

• Backup Heating: Electric heater 1.5–3 kW (optional)

• Solar Absorption Efficiency: ≥93%

• Heat Loss Coefficient: ≤2.0 W/(m²·K)

Structure & Material Composition

• Solar Collector: Tempered glass, selective coating, aluminum frame

• Pressurized Water Tank: SUS304/316 stainless liner + anti-corrosion protection

• Circulation Pump: High-temperature resistant pump for continuous circulation

• Heat Exchanger: Copper coil for indirect heat transfer

• Mounting Brackets: Stainless steel/aluminum, anti-corrosion surface treatment

• Smart Controller: Temperature and pump automatic control

• Pipes & Fittings: PEX insulated pipes with leak-proof push fittings

Manufacturing Process

1. Engineering design & structural simulation

2. Tank welding, hydrostatic pressure testing

3. PU insulation foaming and aging treatment

4. Collector plate selective coating and vacuum sealing

5. Precision assembly of pump, controller, piping interfaces

6. System pressure and temperature endurance test

7. Packaging with protection for international shipping

Industry Comparison Table

Application Scenarios

Designed to support commercial and residential facilities:

• EPC engineering projects

• Hotels, hospitals, schools, gyms

• Apartment buildings / Villas

• Solar retrofit energy-saving programs

• Industrial hot water demand up to 95°C

Core Pain Points & Engineering Solutions

• Roof load limitations → Split design removes tank from roof

• Unstable pressure → Pressurized tank ensures constant flow

• Hard water corrosion → Copper coil and liner protection extend lifespan

• Night / cloudy supply interruption → Smart backup heating integrated

• Maintenance difficulty → Ground-level tank = easy service

Risk Warning & Mitigation

• Incorrect pipe insulation → Heat loss → Use ≥20 mm insulated PEX

• Freeze risk in cold areas → Add antifreeze loop

• Oversized system → Unnecessary cost → Follow flow rate design standards

• Poor roof fixing → Safety hazards → Use wind-resistant mounting structure

Procurement Selection Guide

1. Confirm daily hot water demand (L/day)

2. Check building structure and installation route

3. Choose collector type by climate

4. Validate water quality compatibility for heat exchanger

5. Review certifications (CE/Solar Keymark/ISO)

6. Request pressure endurance and efficiency test reports

7. Assess supplier engineering/after-sales capacity

Engineering Case Study

Hotel Project – 200 Rooms

• Configuration: 30 flat plate collectors + 10×300L tanks

• Daily hot water supply: 20,000 L

• Energy savings: Approx. 65% vs. electric heater

• Payback period: 3–4 years

• Installer: EPC contractor with remote control monitoring

FAQ

1. What is a Split Pressurized Solar Water Heating System? — A separated solar heater supporting pressurized water delivery.

2. Can it work in winter? — Yes, with antifreeze and proper insulation.

3. Is roof penetration required? — Only for collector piping.

4. What pressure can the tank hold? — Typically 0.6–1.0 MPa.

5. Can it connect to boilers? — Yes, as hybrid heating.

6. What is backup power? — 1.5–3 kW electric heater optional.

7. Is maintenance complex? — Low, tank installed indoors.

8. How long is the lifespan? — 12–15 years with proper maintenance.

9. Can it support multiple bathrooms? — Yes, based on tank sizing.

10. Does it need certification for import? — CE and Solar Keymark recommended.

Request Quotation / Technical Support

Contact us for engineering drawings, OEM solution proposals, performance testing data, and distributor pricing for Split Pressurized Solar Water Heating System projects.

E-E-A-T Author Credentials

Prepared by Solar Thermal Engineering Team with over 10 years of expertise in commercial hot water system design, manufacturing, and international EPC project implementation.

Application Scenario&Project Cases:

Villa water heating project

Honors and Qualifications:

Split Solar Water Heating System meets the highest global standards for safety, efficiency, and environmental sustainability. Rest assured, every unit is rigorously tested and certified for your peace of mind.