Requires a soldered flange tubular or fast connecting plate parts, welding parts must be solid and reliable，for heating liquid or closed electric heating tube, should be able to withstand the pressure of 0.3 ~ 1.2MPa. Hydrostatic pressure test lasted for 5mm no leakage phenomenon.
Folder measuring and equipment: oxygen welding equipment, a variety of electrode.
seal
(1). When the sealing according to production order of;
(2). Both ends of the MgO powder and dig out the depth of 3 ~ 4mm, and clean. Pay special attention to the inner wall of the pipe and threaded part does not have magnesium exist;
(3). Before sealing examined them one by one the elements withstand voltage 2000V/1s, no breakdown of insulation flashover, infinite;
(4). The sealing glue, should be rotated magnetic plug pressure, then the nut,washer;
(5). Two the mouth of the electric heating pipe should be according tooperating procedures.