Pressure Safety Valves of Pilot-Operated Safety Valves (POSV)

These safety devices are intended for provision of safe operation of the equipment and electric power plant systems by means of protection against overpressure of the working medium higher than the allowed value.

The safety devices are automatically activated and, when opening, they discharge the working medium surplus from the site protected into the atmosphere. The safety devices are represented by pilot-operated safety valves (POSV) composed of a pressure safety valve and a pulse valve.

Designation	DN, mm	PN, MPa	Body Material, Steel	Full Weight, kg
875-125-0	125	25*	15Х1М1ФЛ	640
1203-125/175-0	125	25*	15Х1М1Ф	512
530-150/150-0в	150	9,8*	15Х1М1ФЛ	424
392-175/95-0г	150	13,7*	15Х1М1ФЛ	446
392-175/95-0г-01	150	9,8*	15Х1М1ФЛ	446
7c-6-1	150	4	25Л	117
7c-8-1	150	4,5*	25Л	120
1203-150/200-0А	150	13,7*	15Х1М1Ф	345
1203-150/200-0А	150	9,8*	15Х1М1Ф	345
1029-200/250-0	200	25*	15Х1М1ФЛ	1745
7c-6-2	200	4	25Л	212
7c-8-2	200	4,5*	25Л	270
7c-6-3	250	2,5	25Л	338
7c-8-3	250	4,5*	25Л	466
111-250/400-0б	250	0,8-1,2*	20ГСЛ	658
111-250/400-0б-01	250	1,3-4,3*	20ГСЛ	665
694-250/400-0б	250	4*	15Х1М1ФЛ	717
7c-4-4	300	1	25Л	371

Designation	DN, mm	PN, MPa	Body Material, Steel	Full Weight, kg
875-125-0	125	25*	15Х1М1ФЛ	640
1203-125/175-0	125	25*	15Х1М1Ф	512
530-150/150-0в	150	9,8*	15Х1М1ФЛ	424
392-175/95-0г	150	13,7*	15Х1М1ФЛ	446
392-175/95-0г-01	150	9,8*	15Х1М1ФЛ	446
7c-6-1	150	4	25Л	117
7c-8-1	150	4,5*	25Л	120
1203-150/200-0А	150	13,7*	15Х1М1Ф	345
1203-150/200-0А	150	9,8*	15Х1М1Ф	345
1029-200/250-0	200	25*	15Х1М1ФЛ	1745
7c-6-2	200	4	25Л	212
7c-8-2	200	4,5*	25Л	270
7c-6-3	250	2,5	25Л	338
7c-8-3	250	4,5*	25Л	466
111-250/400-0б	250	0,8-1,2*	20ГСЛ	658
111-250/400-0б-01	250	1,3-4,3*	20ГСЛ	665
694-250/400-0б	250	4*	15Х1М1ФЛ	717
7c-4-4	300	1	25Л	371