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problems clearing cache file /var/www/vhosts/ess-energy.com/httpdocs/cache/refTableSQL/14ed25cc0598531dbc60be74e2016ebbproblems clearing cache file /var/www/vhosts/ess-energy.com/httpdocs/cache/refTableSQL/20643c73954eff25a77743c1c2fb1700problems clearing cache file /var/www/vhosts/ess-energy.com/httpdocs/cache/refTableSQL/267ec68c8c7aed7c532264241e14ab6fproblems clearing cache file /var/www/vhosts/ess-energy.com/httpdocs/cache/refTableSQL/290ef2137ee82ef48fe208f0db88bf48problems clearing cache file /var/www/vhosts/ess-energy.com/httpdocs/cache/refTableSQL/6a375175d48cee82e2c60ccabba5a350problems clearing cache file /var/www/vhosts/ess-energy.com/httpdocs/cache/refTableSQL/8b455f298df3408796277dac649c23c0problems clearing cache file /var/www/vhosts/ess-energy.com/httpdocs/cache/refTableSQL/bbcb87e5d71ae017a02008caf13c287bproblems clearing cache file /var/www/vhosts/ess-energy.com/httpdocs/cache/refTableSQL/f16c65c68809d874dea7b8b5e1066e82
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1-Non-Pressure Solar Water Heating Systems   This system is non-pressure working which it need of isolation use to keep to temperature with minimum missing, for to 72 hours. Sytems can’t be problem in working as to -18 C. Tanks volumes and tube’s pcs. will be change as to people and use of person.System will be amortize to own, in 1,5 years.Total service time is 15 years. This system which is harmonious to roof platform and is not visual dirtiness.(use to Village, house, apartment, business center, school, hospital………etc. )  ESS-NPA- NON-PRESSURE VACUUM TUBES SOLAR WATER HEATERS
| Â System Types | TubesNumber | TubesLength(mm) | Tubes(Q) Diametr. | TankDiam. | Â Â Tank Capacity(lt ) | UserNumber | Â Price/Â Set | | ESS-NPA 4247- 24 | 24 | 1500 | 47 | 42 | 175 | 4-5 | Call us,Pls | | ESS-NPA 4247- 30 | 30 | 1500 | 47 | 42 | 219 | 5-7 | Call us,Pls | | ESS-NPA 4758- 24 | 24 | 1800 | 58 | 47 | 200 | 5-6 | Call us,Pls | | ESS-NPA 4758- 30 | 30 | 1800 | 58 | 47 | 250 | 6-8 | Call us,Pls | | ESS-NPA 4758- 36 | 36 | 1800 | 58 | 47 | 300 | 8-10 | Call us,Pls |
   Technical Specification; (standard vacuum tubes) | TUBE MODELS | Q47 | Q58 | | Length (mm.) | 1500 | 1800 | | Outer tube diameter (mm) | 47 | 58 | | Inner tube diameter(mm) | 42 | 47 | | Glass tickness (mm) | 1.5 | 1.5 | | Glass material | Borosilicate Glass3.3 | Borosilicate Glass3.3 | | Absorbe coating | Al/N/AL | AL/N/AL | | Absorbtion productivity | > 93% | >93% | | Lost of emission | <7% | <7% | | Pressure of vacuum | P<5.10-2 Pa | P<5.10-2 Pa | | Endurance to wind | 30 m/sn | 30 m/sn | |  |  |  |
 Call us Pls. For prices....
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