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Altai Machine-Building Company

Select equipment

Designation

Valve type

Dn (diameter)

Pn (pressure)

Т°С (temperature)

Data sheets of pressure-reducing desuperheating station, of stop valves, of regulating valves

Advanced valves

Safety Valves 7с

Safety valve is operated by pulse valve. These valves represent a pulse-safety device used to prevent from steam overpressure in pipelines of pressure-reducing desuperheating stations, pressure-reducing stations, deaerators and other facilities of the thermal power plant. Connection to pipeline: 7с-6 – by flange, 7с-8 – by welding (or by flange at the customer’s option), pulse valve – by welding.

Destignation
Dn, mm
Pn, MPa
Т, С°
Kvy, m3/h
F, cm2
L, mm
H, mm
A, mm
d1, mm (d1/D1)
d2, mm (d2/D2)
Pp, MPa
Weight, kg
7с-6-1 150 4,0 450 210 52 240 566 260 150 200 114
7с-8-2 200 Рр4,5 450 480 127 330 604 360 190/22 246/278 206
7с-6-2 200 4,0 450 480 127 290 616 350 200 250 207
7с-8-3 250 Рр4,5 450 1020 253 370 735 430 240/290 400/460 438
7с-6-3 250 2.5 450 1020 253 330 710 420 250 300 375

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