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Drilling of branch T-pieces without gas leakage

 Ø
hole
Ø upper
ring
Ø lower
ring
Ø drilled hole
in T-piece
Mod. V44 mm. 44 2" 1"1/4 → 1"1/2 1" → 1"1/4
 Mod. V62 mm. 62 2"1/2 1"1/4 → 2"1/2 1" → 2"
 Mod. V82 mm. 82 4" 1"1/4 → 3" 1" → 2"1/2
 Mod. V118 mm. 118 4"1/2 1"1/4 → 4"1/2 1" → 4"
 Mod. V130 mm. 130 5" 2" → 5"1/4 1" → 5"

Plate closures model V44 to V130 are made of steel and protected against corrosion by double zinc plating, alternative solution can be of lightweight alloy Ergal. They are used up to operating pressure PN 5 bar, together with steel T-pieces which are in welded version (type 187) or cast version (type 188).

Drilling device with stopperDrilling device with milling cutter
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