Drive type – manual, bevel or spur gear speed reducer, from actuator.
Connection to pipeline – by welding.
Valves can be equipped with annunciator of shutoff valve limit position. .
Sealing surface – surfacing of corrosion resistant steel. .
Tightness class according to ГОСТ 9544:
- for valves DN ≤ 300 - 1;
- for valves DN > 300 - 2.
Operating medium:
I – circulation water, steam, feed water, technical water, overhead, condensation water, lubricant, nitrogen, nuclear gas;
II – circulation water, steam, feed water, technical water, overhead, primary coolant, condensation water, lubricant, nitrogen, nuclear gas.
Operation medium temperature:
- for valves of PN 16 bar – up to 200 0С;
- for valves of 25 ,40 bar – up to 250 0С.
Medium flow – any direction.
Connection to pipeline – by welding.
Installation position::
- on vertical pipeline – any position;
- on horizontal pipeline – any position in upper hemisphere as to horizontal..
Position recommended – by electric drive up.
Installation place – in attended rooms (R), in boxes (B) and under blanket (Bl) АС according to tbl 1.
