12s-8-9E Rotary bolt

The butterfly valves type 12c are designed for air and non-aggressive purified gases flow control in gas and air pipelines of boiler unit. Full opening of the gate corresponds to turning the disc by 90° from the closed position. Connection to pipework: flanged.

Installation position: on horizontal and vertical pipeline sections. Climatic design: ?, ???, ??,? according to GOST 15150-69.

Placement category: 2, 3 according to GOST 15150-69. Regulation is carried out by changing the area of the passage section when turning the disc with the help of actuators: <ul> <li>- ???? type, mounted on the upper trunnion;</li> <li>???

type through a lever.</li> </ul>Full opening of the gate corresponds to rotation of the disc by an angle of 90º from the closed position.