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FL 441 SP Series

Flanged standard pressure series suitable for steam, gas and liquid service. They have proven themselves as a universal safety valve for many applications.

Approvals

  • IBR
  • CCOE

Industries

  • Chemical Industry    
  • Petrochemical Industry    
  • Power    
  • Industrial Gases    
  • Beverage Industry    
  • Pharmaceutical Industry 
Product info Metric unit US unit

Key feature

Valve meeting ASME requirements,
Unique feature of universal trim

Valve meeting ASME requirements,
Unique feature of universal trim

Nominal diameter inlet

25  -  200 mm 1"  -  8"

Nominal diameter inlet - Flange

Nominal diameter inlet - Thread

Orifice

D - T

D - T

Actual orifice area A0

415.27  -  21382 mm² 0.644  -  33.14 in²

Actual orifice diameter d0

Set Pressure

0.5  -  40 bar 7.25  -  568.8 psig

Flange rating inlet

PN 10  -  PN 40 CL150, CL300, CL600

Temperature acc. to DIN EN

-268  to  540 °C -450  to  1000 °F

Temperature acc. to ASME

Material outlet body

Body material

WCB, WC6, CF8M, AISI 316L

Valve connection

Flange acc. to DIN EN 1092-1 or ASME B16.5

Flange acc. to DIN EN 1092-1 or ASME B16.5

Bellows

Stainless Steel

Stainless Steel

Approvals

IBR, CCOE, Any TPI upon request

IBR, CCOE, Any TPI upon request

Type of loading

Spring loaded

Spring loaded

Feature  
Disc

O-ring disc

Seat/nozzle

Stellited nozzle and disc

Bellows  
Test gag

Test gag

Bonnet

Open bonnet

Closed bonnet

Free of oil and grease  
Bug screen  
NACE material test certificate  
Drain plug

Drain plug

Caps and levers

Screwed closed cap

Screwed lifting lever cap

Spring  
Cooling spacer

Cooling spacer

Jacket type

Jacket type

Connections  
Special materials  
Electropolished  
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