Russian version

Breather valves

Details

PV relief valves are safety equipment designed to protect tank against rupturing or imploding. As long as the tank pressure remains within the valve pressure and vacuum setting the pallets remains in contact with the seat ring and no venting or breathing take place. If direct atmosphere discharge or nitrogen is used on vacuum inlet, a flanged connection is available.
PV relief valve is commonly referred to as a “breather valve” beacause of its primary function.
Flame arrester can be mounted directly upstream of breather vent.


Features

SIZE: 4” (100 mm) through 8” (200 mm)
CONSTRUCTED: aluminium, carbon steel, stainless steel, additional metals and coatings
SETTING PRESSURE: +2,5 mbar to +50 mbar
SETTING VACUUM: -2,5 mbar to -30 mbar
FLANGE RATING: ANSI 150, PN16


Products

series 1000

• new shape for fluid dnamic improvements
• pipeaway connection on Pressure and process side
• pallet guide outside the process


Materials

DESCRIPTION STANDARD MATERIALS OF CONSTRUCTION
  CARBON STL SS SPECIAL
nut, hex SS SS SS
cover AL GR 356 T6 CS WCB SS
gasket, cover NON-ABS NON-ABS NON-ABS
pallet, pressure SS SS SS
o-ring, plate pallet (2) VITON VITON VITON
flange SS SS SS
rod, guide SS SS SS
stem, pressure SS SS SS
body AL GR 356 T6 CS SS
stud - nut SS SS SS

Dimensions

DN 4" 6" 8"
A 520 778 1010
B 327 418 484
C 170 248 330
D 235 355 460
E 191 263 305

Dimensions shown are for reference only. Contact factory for certified drawings.

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