Note 1 a, construction before, buried depth, in accordance with the provisions of the construction of the gas if buried deeper than construction regulations, must use protection tube. After 2, digging the first stone, gravel and other debris removal, after about 10 cm thick paved with sand and press ok. 3, ball valve connected with the piping should be level, vertical state after construction. 4, and other embedded objects should remain buried distance: (1) the regional heating and so on more than 60 ℃ buried features: THP after using protection measures such as distance to keep more than 30 cm. (2) on the pipe, electrical facilities, communication cable, more than 30 cm. (3) the pipe: more than 20 cm. Second, the ball valve butt welding should be paid attention to when using: 1, to confirm the installation location of ball valve: ground water or moisture, change the installation location or remove water or moisture completely, ensure site not sinking, must be pressed foundation strong, at this time to adjust the tube to a level with the ground into position. 2, one end of the pipe fixed to the welding machine before they open the ball valve packing, one end fixed on the ball valves, if butt welding machine of fixed length is insufficient, can't use two fixed machine fixed when the fixed ball valve, ball Industrial Valves and fixed on the other side of the machine is transferred to the same height. Fixed & rarr; Surface processing & rarr; The heating plate installation & rarr; Pressure welding & rarr; Heat to maintain & rarr; Joint & rarr; Cooling & rarr; Separation of welding machine. 3, after been fixed at the other end of the tube welding according to welding method. Note: 1, the ball valve when working to the identity of the upper arrow must be consistent with the flow of gas; 2, welding work to prevent the ball valve flow within different material used in packaging and so on the ball valve inside the block; 3, tube and ball Industrial Valves should be level state of vertical welding; 4, about 30 minutes after welding machine to separate cooling; 5, the tee ball valve removed his hand from the box, after the assembly, then put the hand completely inserted into the knob. Note: use & quot; T” To test ball Industrial Valves type handle switch state; 6, to verify the ball valve presence of switch action: ADAPTER line PE pipe length and direction of the ball valve must be standard ( - ） At this point is open state. Straight line vertical direction ( ‖） Is closed at this time. Closed ( 关闭) : under the conditions of open the ADAPTER according to clockwise direction & 90 deg; 。 Open ( Open) : under the closed state of the ADAPTER according to the direction of the counterclockwise rotation of 90 & deg; 。 GEAR BOX 的TOP ADAPTER룰 180° Left and right sides, turning the arrow 90 & deg; The switch is closed ( 完全关闭) , completely open state, FULL open) Open or closed state can't drive. 7, use of tossing the ball valve air test; Around 8, ball valve knob used sand. Three, use fused sleeve 1, to confirm the installation of ball valve location: when the ground water or moisture, please change the location of the installation or the water or moisture completely place, in order to ensure the site does not sink. Must be pressed foundation strong, at this time to adjust the tube to a level with the ground into position. 2, tube: confirm the tube when the cut is right, not a right Angle should be cut off again. 3, scratched the surface of the ball valve and pipe, ball valve of the surface of the connecting pipe and tube surface, insert the connecting pipe length is about 20% of the part marking, marking parts must be all to scrape the thickness of 0. 2 mm, tube surface after scraping, wrap connecting sleeve removed, connect tube completely inserted into the pipe. （ The connecting pipe STOPPER is dismantled insert) 。 Note: scraping surface is the most important engineering with a connecting sleeve, so the tube surface must be clean.
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