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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 gastight DN20/DN32 SF07, cast steel, FKM, without lifting device

SF07000204

flange-safety valve gastight DN20/DN32 SF07, cast steel, FKM, without lifting device

flange-safety valve gastight DN20/DN32 SF07 for liquid and gaseous media made of cast steel, seal FKM set pressure 0,2 - 40,0 bar without lifting device

Technical features

  • diameter DN20/DN32
  • connection flange acc. to DIN EN 1092-1 inlet PN40 / outlet PN16
  • seal FKM
  • set pressure 0,2 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

flange-safety valve ASME gaseous media gastight ANSI150 DN32 1 1/2" x 2" SF04, stainless steel, metal, without lifting device

SF04001007

flange-safety valve ASME gaseous media gastight ANSI150 DN32 1 1/2" x 2" SF04, stainless steel, metal, without lifting device

flange-safety valve ASME gastight DN32 1 1/2" x 2" 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 DN32 1 1/2" x 2"
  • 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 ASME gaseous media gastight with bellow ANSI150 DN50 2" x 3" SF04, stainless steel, PTFE, without lifting device

SF04021308

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

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

Technical features

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

flange-safety valve gastight DN25/DN40 SF07, cast steel, PTFE, with lifting device lever

SF07100305

flange-safety valve gastight DN25/DN40 SF07, cast steel, PTFE, with lifting device lever

flange-safety valve gastight DN25/DN40 SF07 for liquid and gaseous media made of cast steel, seal PTFE set pressure 1,0 - 40,0 bar with lifting device lever

Technical features

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

flange-safety valve ASME gaseous media gastight ANSI150 DN32 1 1/2" x 2" SF04, stainless steel, EPDM, with lifting device lever

SF04101107

flange-safety valve ASME gaseous media gastight ANSI150 DN32 1 1/2" x 2" SF04, stainless steel, EPDM, with lifting device lever

flange-safety valve ASME gastight DN32 1 1/2" x 2" SF04 for gaseous media made of stainless steel, seal EPDM set pressure 0,2 - 20,0 bar flange ANSI 150 with lifting device lever

Technical features

  • diameter DN32 1 1/2" x 2"
  • connection flange acc. to ASME B 16.5 inlet ANSI150 / outlet ANSI150
  • seal EPDM
  • set pressure 0,2 - 20,0 bar
  • media gaseous media
  • 24 months warranty

flange-safety valve DN80/DN125 SF06, open bonnet PTFE, with lifting device lever

SF06110310

flange-safety valve DN80/DN125 SF06, open bonnet PTFE, with lifting device lever

flange-safety valve DN80/DN125 SF06 for gaseous media made of Spheriodal graphite cast iron 5.1303 seal PTFE set pressure 0,2 - 25,5 bar with lifting device lever

Technical features

  • diameter DN80/DN125
  • connection flange acc. to DIN EN 1092-1 inlet PN40 / outlet PN16
  • seal PTFE
  • set pressure 0,2 - 25,5 bar
  • media gaseous media
  • 24 months warranty
    Certified

flange-safety valve DN40/DN65 SF06, open bonnet EPDM, with lifting device lever

SF06110107

flange-safety valve DN40/DN65 SF06, open bonnet EPDM, with lifting device lever

flange-safety valve DN40/DN65 SF06 for gaseous media made of Spheriodal graphite cast iron 5.1303 seal EPDM set pressure 0,2 - 40,0 bar with lifting device lever

Technical features

  • diameter DN40/DN65
  • connection flange acc. to DIN EN 1092-1 inlet PN40 / outlet PN16
  • seal EPDM
  • set pressure 0,2 - 40,0 bar
  • media gaseous media
  • 24 months warranty
    Certified

flange-safety valve DN50/DN80 SF04, stainless steel metal, without lifting device

SF04000008

flange-safety valve DN50/DN80 SF04, stainless steel metal, without lifting device

flange-safety valve DN50/DN80 SF04 for liquid and gaseous media made of stainless steel seal metal set pressure 0,2 - 40,0 bar without lifting device

Technical features

  • diameter DN50/DN80
  • connection flange acc. to DIN EN 1092-1 inlet PN40 / outlet PN16
  • seal metal
  • set pressure 0,2 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

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