P1 (П1), P2 (П2), P3 (П3) air legs

Air legs for driving horizontal and inclined tunnels. They are designated for supply of pneumatic portable casing guns of PP-36 (ПП-36), PP-50 (ПП-50), PP-54 (ПП-54), PP-63 (ПП-63) types and for maintaining them at a definite altitude. Three dimensional types allow for selecting the desired leg in strict compliance with specifications of work performance.  Fixing the air leg to the casing gun provides for quick and reliable attachment and disconnection without using special tools. A simple and robust construction of the item guarantees uninterrupted operation and reduces operational costs to minimum.