2. Danfoss
  3. Shut-off valves, SVA-S 125-200 - Max permissible pressure difference for closing/opening

Danfoss Shut-off valves, SVA-S 125-200 - Max permissible pressure difference for closing/opening Installation guide

  • Hello! I am an AI chatbot trained to assist you with the Danfoss Shut-off valves, SVA-S 125-200 - Max permissible pressure difference for closing/opening Installation guide. I’ve already reviewed the document and can help you find the information you need or explain it in simple terms. Just ask your questions, and providing more details will help me assist you more effectively!
Installation guide
Shut-o valves, SVA-S 125-200
Max permissible pressure dierence for closing/opening
148R9629
148R9629
© Danfoss A/S (MWA), 2015-01 DKRCI.PI.KD2.M1.02 / 520H9633 1
ENGLISH
The SVA 125-200 stop valve has a limita-
tion on the operating pressure dierential,
when the valve has to close/open. This
dierential closing pressure is according to
EN12284 which is a part of EN378-1.
The table below states the maximum
pressures at which the valves can be
operated manually and tightness can be
achieved.
P1 P2
P1
P2
Flow direction
P1 → P2 P2 → P1 P2 → P1
Valve size
[DN]
Closing and opening pressure
ΔP max. (P1-P2)
Closing pressure
ΔP max. (P2-P1)
Opening pressure
ΔP max. (P2-P1)
125 33 bar 52 bar 33 bar
150 21 bar 52 bar 21 bar
200 14 bar 52 bar 14 bar
/