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Modulate Action

Type 431 / 433 PN 160

Safety valves from the Modulate Action product group feature a standard or proportional opening characteristic.  They minimize medium loss when opening and are used for protection from pressure peaks, thermal relief, and liquids.

Approvals

Industries

  • Chemical Industry
  • Petrochemical Industry
  • Technical Gases
  • Pharmaceutical Industry
Product info Metric unit US unit

Key feature

High proportional opening area and hign pressure

High proportional opening area and hign pressure

Nominal diameter inlet

DN 15 1/2"

Nominal diameter outlet

Pressure

Actual orifice diameter d0

12 mm 0,47 in

Actual orifice area A0

113 mm² 0,175 in²

Pressure

0,3  -  160 bar 4,35  -  2320,6 psig

Flange rating inlet

PN 160 PN 160 CL600

Temperature acc. to DIN EN

-270  to  450 °C -454  to  842 °F

Temperature acc. to ASME

Body material

1.0619, 1.4408

SA 216 WCB, SA 351 CF8M

KUB-Materials

Valve connection

Flange acc. to DIN EN 1092 or ASME B16.5

Flange acc. to DIN EN 1092 or ASME B16.5

Bellows

Stainless steel and elastomer

Stainless steel and elastomer

Type of loading

Spring loaded

Spring loaded

Approvals

PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, AQSIQ, EAC

PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, AQSIQ, EAC

Specials

Units converted; No approvals acc. to ASME

Units converted; No approvals acc. to ASME

Feature Option Code Schematic drawing
Disc

metal sealing, with detachable lifting aid

J26 (standard)

metal sealing, bull-race

J24

metal sealing, 1.4404

L44

metal sealing, 1.4404 stellited

J25

with soft sealing O-ring CR „K” 

J21

with soft sealing O-ring EPDM „D” 

J22

with soft sealing O-ring FKM „L” 

J23

with soft sealing O-ring FFKM „C” 

J20

with soft sealing plate SP „T” 

J49 (on request)

with soft sealing plate PCTFE „G” 

J48 (on request)

with soft sealing platePTFE „A” 

J44 (on request)

Seat/nozzle

Stellited sealing surface / seat

L61

Bellows

Balanced bellows with closed bonnet

J78

Balanced bellows with open bonnet

J68

Special materials INCONEL
Special materials Hastelloy

J78S15 +
material name

Caps and levers

Screwed cap H2

Screwed plain lever H3

Screwed packed lever H4

Spring

heat resistant

X01

corrosive resistant 1.4310

X04

  • Spring
Test gag

for Cap H2

J70

for  lifting device H4

J69

  • Test gag H2
  • Test gag H4
Bonnet

closed

see Art.No.

open

see Art.No.

Heating jacket

Heating jacket

  • Heating jacket
Lift indicator

Lift indicator for lifting device H4

J39J93

  • Lift indicator
Lift stopper

ring

J51

actuate screw H2

J52

actuate screw H4

J50

Drain hole

G1/4

J18

G1/2

J19

  • Drain hole
O-ring-damper

O-ring damper H2

J65

O-ring damper H4

J66

Connections outlet    
Free of oil and grease

_

J85

KUB bursting disc

KUB bursting disc

  • Bursting disc
Documentation    
Balanced Piston    
   
   
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