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flange-safety-valve

Safety valve with flange DN15 - DN100

Flange-safety-valves are often used in pipelines that are under pressure, in order to protect them from overpressure, especially in pipelines with higher nominal sizes and pressure ranges. The flange valves for pressure ranges from PN16 to PN40 are available in nominal sizes from DN15 to DN100. The set pressure can range from 0,2 bar to 40 bar, depending on the model. The flange of the safety valves is manufactured according to DIN EN 1092-1 or DIN EN 1092-2. The thickness tolerance is according to DIN 2533 or 2545, the sealing surfaces comply with DIN 2526 Form C. The seal for our flange-safety-valve can be either EPDM, metal or FPM. All flange-safety-valves are manufactured from grey cast iron EN-JL 1040, stainless steel 1.4408 or cast steel 1.0619+N. NieRuf GmbH is you well-known expert and currently offers three different models of flange-safety-valves: With closed lifting device and bonnet, with gastight cap and closed bonnet or with open lifting device and bonnet.

Safety valve with flange DN15 - DN100

Flange-safety-valves are often used in pipelines that are under pressure, in order to protect them from overpressure, especially in pipelines with higher nominal sizes and pressure ranges. The flange valves for pressure ranges from PN16 to PN40 are available in nominal sizes from DN15 to DN100. The set pressure can range from 0,2 bar to 40 bar, depending on the model. The flange of the safety valves is manufactured according to DIN EN 1092-1 or DIN EN 1092-2. The thickness tolerance is according to DIN 2533 or 2545, the sealing surfaces comply with DIN 2526 Form C. The seal for our flange-safety-valve can be either EPDM, metal or FPM. All flange-safety-valves are manufactured from grey cast iron EN-JL 1040, stainless steel 1.4408 or cast steel 1.0619+N. NieRuf GmbH is you well-known expert and currently offers three different models of flange-safety-valves: With closed lifting device and bonnet, with gastight cap and closed bonnet or with open lifting device and bonnet.

Insert of flange safety valves

Flange-safety-valves are favored in steam systems and steam boilers, since in these applications flange connections are predominant. The construction allows for significantly higher nominal sizes, which in turn allows for higher discharge capability compared to thread safety valves. This high discharge capability is especially relevant in large tanks, which makes the high quality flange safety valves from NieRuf the ideal valve.

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flange-safety valve DN20/DN20 SF0301, stainless steel metal, without lever

SF03010004

flange-safety valve DN20/DN20 SF0301, stainless steel metal, without lever

DN20 flange-safety valve gastight cap and closed bonnet for liquid and gaseous media made of stainless steel pressure 0,3 up to max. 40 bar

Technical features

  • diameter DN20/DN20
  • connection flange acc. to DIN EN 1092-1
  • seal metal
  • set pressure 0,3 up to max. 40 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

flange-safety valve ASME liquid media gastight ANSI 150 DN40 1 1/2" x 3" SF07, cast steel, EPDM, with lifting device lever

SF07102107.1

flange-safety valve ASME liquid media gastight ANSI 150 DN40 1 1/2" x 3" SF07, cast steel, EPDM, with lifting device lever

flange-safety valve ASME gastight DN40 1 1/2" x 3" SF07 for liquid media made of cast steel, seal EPDM set pressure 0,2 - 20,0 bar flange ANSI 150 with lifting device lever

Technical features

  • diameter DN40 1 1/2" x 3"
  • connection flange acc. to ASME B 16.5 inlet ANSI150 / outlet ANSI150
  • seal EPDM
  • set pressure 0,2 - 20,0 bar
  • media liquid media
  • 24 months warranty

safety valve bellow & gastight cap DN20/DN32 SF04, metal, with lifting device lever

SF04120004

safety valve bellow & gastight cap DN20/DN32 SF04, metal, with lifting device lever

safety valve DN20/DN32 SF04 with bellows & gastight cap stainless steel seal metal pressure 0,4 - 40,0 bar lever

Technical features

  • diameter DN20/DN32
  • connection flange acc. to DIN EN 1092-1 inlet PN40 / outlet PN16
  • seal metal
  • set pressure 0,4 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

flange-safety valve ASME gaseous media gastight ANSI150 DN50 2" x 3" SF04, stainless steel, metal, without lifting device

SF04001008

flange-safety valve ASME gaseous media gastight ANSI150 DN50 2" x 3" SF04, stainless steel, metal, without lifting device

flange-safety valve ASME gastight DN50 2" x 3" SF04 for gaseous media made of stainless steel, seal metal set pressure 0,2 - 20,0 bar flange ANSI 150 without lifting device

Technical features

  • diameter DN50 2" x 3"
  • connection flange acc. to ASME B 16.5 inlet ANSI150 / outlet ANSI150
  • seal metal
  • set pressure 0,2 - 20,0 bar
  • media gaseous media
  • 24 months warranty

flange-safety valve gastight with bellow DN25/DN40 SF07, cast steel, FKM, without lifting device

SF07020205

flange-safety valve gastight with bellow DN25/DN40 SF07, cast steel, FKM, without lifting device

flange-safety valve gastight DN25/DN40 SF07 for liquid and gaseous media made of cast steel, seal FKM set pressure 0,3 - 40,0 bar without lifting device with bellow

Technical features

  • diameter DN25/DN40
  • connection flange acc. to DIN EN 1092-1 inlet PN40 / outlet PN16
  • seal FKM
  • set pressure 0,3 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

flange-safety valve ASME gaseous media gastight with bellow ANSI 150 DN15 3/4" x 1" SF07, cast steel, metal, without lifting device

SF07021004

flange-safety valve ASME gaseous media gastight with bellow ANSI 150 DN15 3/4" x 1" SF07, cast steel, metal, without lifting device

flange-safety valve ASME gastight DN15 3/4" x 1" SF07 for gaseous media made of cast steel, seal metal set pressure 1,0 - 20,0 bar flange ANSI 150 without lifting device with bellow

Technical features

  • diameter DN15 3/4" x 1"
  • connection flange acc. to ASME B 16.5 inlet ANSI150 / outlet ANSI150
  • seal metal
  • set pressure 1,0 - 20,0 bar
  • media gaseous media
  • 24 months warranty

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+49 7143/9666-900

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sales@nieruf.com

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