Vacuum solar collector X-AIR 14 at high efficiency made of n° 14 glass tubes of external diameter of 58 mm, in boro-silicate glass with double air gap in which vacuum is created internally.
The following section provides general instructions for the dimensioning of the hydraulic lines connecting the collectors. However, it is necessary to get a proper sizing borne by the designer of the single system. Use metal pipes suitable for contact with glycol solution and high temperatures. Also, make hydraulic seals suitable for contact with glycol solution and high temperature.
HYDRAULIC CONNECTIONS X-AIR 14
collector's head has three connections on its left side and three on its right side. On each side, hydraulic connections are marked with raised dots (see the side image). Connection marked with one dot identifies the "third pipe", that is the translational pipe. Connections marked with two or three dots are welded in the internal circuit of vacuum tubes. For connections of solar piping feed (delivery and return) please refer to images shown in this section.