ARI

ARI Spring-loaded safety valve series 12.911 cast iron gastight adjustment range 3,7 - 5,0 barg inlet PN16 DN65 outlet PN16 DN100

  • ERIKS:12559988
Image 1
Full lift safety valves are mainly applied for vapours (including steam) and gases. Suitable for liquids in large volumes.
Design according EN ISO4126-1, TRD421 and AD2000-A2
Type approvals: TÜV, PED, DNV.

Options:
- O-ring in valve: EPDM, Neoprene (CR) or Viton (FPM).
- Stainless steel bellows.

Material body: cast iron EN-JL1040
PN16
Closed bonnet, gastight cap
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€1,778.20/ pieceexcl. VAT

€2,151.62incl. VAT

Estimated delivery date - 09/12/2026
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Brand
ARI
Series
12.911
Norm
ISO 4126-1
Model
Spring-loaded safety valve
Construction type
Right-angled
Housing material inlet side
Cast iron
Material quality inlet side
EN-JL1040
Housing material outlet side
Cast iron
Material quality outlet side
EN-JL1040
Nominal inner diameter inlet side
DN65
Connection inlet side
Flange
Pressure rating inlet side
PN16
Nominal inner diameter outlet side
DN100
Connection outlet side
Flange
Pressure rating outlet side
PN16
Flange finish
Raised face
Adjustment range
from 3.7 to 5 bar
Blow-off characteristic
High-lifting
Valve bore
58.5 mm
Valve lifter
No
Gastight valve
Yes
Spring cap, closed
Yes
Material spring bonnet
Cast iron
Material disc
1.4122
Seat material
1.4571
Sealing
Metal
Spring material
Spring steel (1.8159)
Spindle material
1.4021+QT
Medium temperature
from -10 to 300 °C