Universal Hawlingers are to be used for installation on DCI, steel, and AC pipes DN 65 - DN 500. Adaptation to the main pipe is effected via holding strap and saddle gasket (model no. 310 or model no. 311) of the appropriate nominal width.
In combination with the ZAK® spigot end fittings, the upper ZAK® socket outlets are used to connect service lines.
All Hawle pipe drilling saddles type Hawlinger are provided with a shut-off blade of stainless steel driven via slotted link gear as shut-off device. The shut-off blade is moved in a housing at low wear in horizontal direction against fixed metal stops.
To open or close the outlet area only one half revolution (180°) is required. In combination with a drilling device (e.g. Hawle drilling device HAWLOMAT, model no. 830) the shut-off system permits the easy under pressure drilling of the main line.