vacuum tubes solar heaterstant tank
System Description
VISION VNS series non-pressure solar water heater incorporates a number of all-glass vacuum tubes, an atmospheric water tank, the supporting bracket and accessories.
The vacuum tube for VISION non-pressure solar water heater could be single-target tubes, three-target tubes, and super heat tubes.
Main Features
1. The most economical solar water heating system 2. Adaptable with most kinds of solar vacuum tubes
3. Rely on hydraulic pressure for hot water supply 4. Compatible with electric or gas heating devices
5. Auto working with a controller or feeder tank 6. The system is mostly installed on house roof
7. Working all year round even in frozen winter
System Specification
Vacuum Tube | Tube type | Single-target/ Three-target/ Super heat tube |
Glass tube | Double-layer borosilicate 3.3 glass |
Coating | Three-target selective coating Cu/SS-AIN |
Water Tank | Inner tank | Food-grade stainless steel SUS304/ SUS316 |
Insulation | High-density PU foam preserves heat 80 hours |
Tank shell | Hot-dip galvanized steel painted |
Bracket | Shaped strong galvanized steel adaptable to flat and slope roof |
Accessories | Anti-aging silicon seals, dust-proof seals, air-vent cap, stainless screws |
Auxiliary Devices | Solar controller, assistant tank, electrical heater, magnesium anode |
Tilt Angle | 25°; 38°; 45° |
Hail Resistance | 25 MM |
Working Pressure | Atmospheric |
Model | Vacuum Tube | Capacity Liter | Container Loading Qty |
Tube Qty | Tube Size | 20GP | 40HQ |
VNS-CG100 | 10 Pcs | Φ58*1800 MM | 100 L | 70 Sets | 170 Sets |
VNS-CG120 | 12 Pcs | Φ58*1800 MM | 120 L | 62 Sets | 151 Sets |
VNS-CG150 | 15 Pcs | Φ58*1800 MM | 150 L | 54 Sets | 131 Sets |
VNS-CG180 | 18 Pcs | Φ58*1800 MM | 180 L | 43 Sets | 105 Sets |
VNS-CG200 | 20 Pcs | Φ58*1800 MM | 200 L | 40 Sets | 97 Sets |
VNS-CG250 | 25 Pcs | Φ58*1800 MM | 250 L | 33 Sets | 80 Sets |
VNS-CG300 | 30 Pcs | Φ58*1800 MM | 300 L | 28 Sets | 68 Sets |
FAQ
Frequently Asked Questions
Q: How to use in cloudy or rainy days? |
A: We could connect electric heater, gas heater or other boilers for bakup heating; |
Q: Freezing problem in solar water heater? |
A: Never, when snow more than 5 days electric heating will start to protect system; |
Q: Lead time for production? |
A: Within 7 days for full container orders; |
Q: Minimum order quantity? |
A: 1 set for each model of VISION solar water heaters and solar collectors; |
Q: Payment term and methods? |
A: 30% deposit & 70% balance at sight of B/L copy. Via T/T transfer, sight L/C, Western Union, MoneyGram, Paypal, etc; |
Q: Warranty period? |
A: 10 years for VISION solar water heaters and solar collectors upon bill of lading date; |
Q: Accept Alibaba trade assurance order? |
A: Yes, in this way Alibaba will guarantee your payment, product quality and delivery; |
Q: Accept OEM production? |
A: Yes, offer to make customized logo on solar products and packing cartons. |
Q: Working as a VISION dealer? |
A: We welcome abroad customers to work with us as a VISION dealer for agreed countries and areas. |