Latches maple steel ZKS 15/25/25/160 muftovy

Latches represent a kind of pipeline fittings which appointment to block and open a stream of steam or liquid. In difference of otkran, the mechanism deystviyazadvizhekvozvratno-forward, the movement is carried out perpendicular to a stream. Zadvizhkabyla the first primitive mechanism allowing to interrupt environment current, but was subsequently vytesnenakranamiiz-for the unreliability where Wednesday passes under pressure poroyzadvizhkiprosto did not maintain a pressure. The sphere generally not closed hydraulic system where adjustment of the movement of water only is required by provisions primeneniyazadvizhekstat it is open and closed. Nominal pressure in such systems should not exceed 1 atmosphere differently there is a risk of a sryvazadvizhka.

Latches are widely used on technological and main pipeline lines. They have small construction length. Construction height zadvizhkis not sliding spindle is rather small, latches with a sliding spindle — much more. For closing or discovery of pass it is necessary to make a large number of turns of a spindle therefore latches, especially big diameters of pass, are often supplied with electric drives.

Latches have the following characteristics:

• as working environment steam, oil, oil, water, alkali, acid and many other things can act;
• temperature threshold of a latch - to 450 °;
• pressure to 25 MPas is maintained;
• big options of possible diameter of DN: from 50 to 1200.