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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

€1,628.00*

€1,937.32 VAT included.

Delivery time
2 - 3 weeks

flange-safety valve DN100/DN100 SF02, cast steel 1.0619+N EPDM, with lever

SF02000111

flange-safety valve DN100/DN100 SF02, cast steel 1.0619+N EPDM, with lever

flange-safety valve DN100/DN100 pressure 0,5 up to max. 40 bar closed lifting device and closed bonnet for liquid and gaseous media

Technical features

  • diameter DN100/DN100
  • connection flange acc. to DIN EN 1092-1
  • seal EPDM
  • set pressure 0,5 up to max. 40 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€2,844.30*

€3,384.72 VAT included.

Delivery time
2 - 3 weeks

safety valve bellow & gastight cap DN50/DN80 SF04, EPDM, with lifting device lever

SF04120108

safety valve bellow & gastight cap DN50/DN80 SF04, EPDM, with lifting device lever

safety valve DN50/DN80 SF04 with bellows & gastight cap stainless steel seal EPDM pressure 3,0 - 40,0 bar lever

Technical features

  • diameter DN50/DN80
  • connection flange acc. to DIN EN 1092-1
  • seal EPDM
  • set pressure 3,0 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€5,947.50*

€7,077.53 VAT included.

Delivery time
3 - 5 working days

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

SF04120104

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

safety valve DN20/DN32 SF04 with bellows & gastight cap stainless steel seal EPDM pressure 0,8 - 40,0 bar lever

Technical features

  • diameter DN20/DN32
  • connection flange acc. to DIN EN 1092-1
  • seal EPDM
  • set pressure 0,8 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€2,716.30*

€3,232.40 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN32/DN50 SF06, gastight bonnet & stainless steel bonnet EPDM, with lifting device lever

SF06120106

flange-safety valve DN32/DN50 SF06, gastight bonnet & stainless steel bonnet EPDM, with lifting device lever

flange-safety valve DN32/DN50 SF06 for liquid and gaseous media made of Spheriodal graphite cast iron 5.1303 seal EPDM set pressure 1,0 - 40,0 bar with lifting device lever

Technical features

  • diameter DN32/DN50
  • connection flange acc. to DIN EN 1092-2 | Input PN40 output PN16
  • seal EPDM
  • set pressure 1,0 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€1,483.00*

€1,764.77 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN40/DN40 SF0102, cast iron EN-JL1040 FPM, with lever

SF01020207

flange-safety valve DN40/DN40 SF0102, cast iron EN-JL1040 FPM, with lever

cast iro flange-safety valve DN40/DN40 open lifting device and open bonnet for gaseous media, made of cast iron EN-JL1040 seal FPM

Technical features

  • diameter DN40/DN40
  • connection flange acc. to DIN EN 1092-2
  • seal FPM
  • set pressure 0,5 up to max. 16 bar
  • media gaseous media
  • 24 months warranty
    Certified

€668.90*

€795.99 VAT included.

Delivery time
2 - 3 weeks

flange-safety valve DN65/DN100 SF04, stainless steel metal, with lifting device lever

SF04100009

flange-safety valve DN65/DN100 SF04, stainless steel metal, with lifting device lever

flange-safety valve DN65/DN100 SF04 for liquid and gaseous media made of stainless steel seal metal set pressure 0,2 - 40,0 bar with lifting device lever

Technical features

  • diameter DN65/DN100
  • connection flange acc. to DIN EN 1092-1
  • seal metal
  • set pressure 0,2 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€7,043.60*

€8,381.88 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN50/DN50 SF01, cast iron EN-JL1040 FPM, with lever

SF01000208

flange-safety valve DN50/DN50 SF01, cast iron EN-JL1040 FPM, with lever

flange-safety valve DN50/DN50 made of cast iron EN-JL1040 seal FPM pressure 0,5 up to max. 16 bar lifting with lever

Technical features

  • diameter DN50/DN50
  • connection flange acc. to DIN EN 1092-2
  • seal FPM
  • set pressure 0,5 up to max. 16 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€807.30*

€960.69 VAT included.

Delivery time
2 - 3 weeks

flange-safety valve DN25/DN25 SF01, cast iron EN-JL1040 metal, with lever

SF01000005

flange-safety valve DN25/DN25 SF01, cast iron EN-JL1040 metal, with lever

flange-safety valve DN25/DN25 closed lifting device and closed bonnet made of cast iron EN-JL1040 pressure 0,2 up to max. 16 bar with lever

Technical features

  • diameter DN25/DN25
  • connection flange acc. to DIN EN 1092-2
  • seal metal
  • set pressure 0,2 up to max. 16 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€490.30*

€583.46 VAT included.

Delivery time
2 - 3 weeks

flange-safety valve DN50/DN80 SF06, gastight bonnet & stainless steel bonnet EPDM, without lifting device

SF06020108

flange-safety valve DN50/DN80 SF06, gastight bonnet & stainless steel bonnet EPDM, without lifting device

flange-safety valve DN50/DN80 SF06 for liquid and gaseous media made of Spheriodal graphite cast iron 5.1303 seal EPDM set pressure 3,0 - 40,0 bar without lifting device

Technical features

  • diameter DN50/DN80
  • connection flange acc. to DIN EN 1092-2 | Input PN40 output PN16
  • seal EPDM
  • set pressure 3,0 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€2,057.80*

€2,448.78 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN40/DN40 SF0202, cast steel metal, with lever

SF02020007

flange-safety valve DN40/DN40 SF0202, cast steel metal, with lever

flange-safety valve DN40/DN40 SF0202 for gaseous media made of cast steel seal metal pressure 0,2 up to max. 40 bar with lever

Technical features

  • diameter DN40/DN40
  • connection flange acc. to DIN EN 1092-1
  • seal metal
  • set pressure 0,2 up to max. 40 bar
  • media gaseous media
  • 24 months warranty
    Certified

€877.90*

€1,044.70 VAT included.

Delivery time
2 - 3 weeks

flange-safety valve DN15/DN25 SF04, stainless steel EPDM, with lifting device lever

SF04100103

flange-safety valve DN15/DN25 SF04, stainless steel EPDM, with lifting device lever

flange-safety valve DN15/DN25 SF04 for liquid and gaseous media made of stainless steel seal EPDM set pressure 0,2 - 40,0 bar with lifting device lever

Technical features

  • diameter DN15/DN25
  • connection flange acc. to DIN EN 1092-1
  • seal EPDM
  • set pressure 0,2 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€2,291.90*

€2,727.36 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN20/DN20 SF0202, cast steel EPDM, with lever

SF02020104

flange-safety valve DN20/DN20 SF0202, cast steel EPDM, with lever

flange-safety valve DN20/DN20 SF0202 for gaseous media made of cast steel seal EPDM pressure 0,5 up to max. 40 bar 0°C up to + 150°C

Technical features

  • diameter DN20/DN20
  • connection flange acc. to DIN EN 1092-1
  • seal EPDM
  • set pressure 0,5 up to max. 40 bar
  • media gaseous media
  • 24 months warranty
    Certified

€858.20*

€1,021.26 VAT included.

Delivery time
2 - 3 weeks

flange-safety valve DN80/DN125 SF04, stainless steel PTFE, without lifting device

SF04000310

flange-safety valve DN80/DN125 SF04, stainless steel PTFE, without lifting device

flange-safety valve DN80/DN125 SF04 for liquid and gaseous media made of stainless steel seal PTFE set pressure 0,2 - 40,0 bar without lifting device

Technical features

  • diameter DN80/DN125
  • connection flange acc. to DIN EN 1092-1
  • seal PTFE
  • set pressure 0,2 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€9,557.20*

€11,373.07 VAT included.

Delivery time
3 - 5 working days

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 - 40,0 bar with lifting device lever

Technical features

  • diameter DN80/DN125
  • connection flange acc. to DIN EN 1092-2 | Input PN40 output PN16
  • seal PTFE
  • set pressure 0,2 - 40,0 bar
  • media gaseous media
  • 24 months warranty
    Certified

€2,523.30*

€3,002.73 VAT included.

Delivery time
3 - 5 working days

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 1092-2 | Input PN40 output PN16
  • seal EPDM
  • set pressure 0,2 - 40,0 bar
  • media gaseous media
  • 24 months warranty
    Certified

€1,204.50*

€1,433.36 VAT included.

Delivery time
3 - 5 working days

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
  • seal metal
  • set pressure 0,2 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€4,591.60*

€5,464.00 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN50/DN80 SF06, gastight bonnet & stainless steel bonnet EPDM, with lifting device lever

SF06120108

flange-safety valve DN50/DN80 SF06, gastight bonnet & stainless steel bonnet EPDM, with lifting device lever

flange-safety valve DN50/DN80 SF06 for liquid and gaseous media made of Spheriodal graphite cast iron 5.1303 seal EPDM set pressure 3,0 - 40,0 bar with lifting device lever

Technical features

  • diameter DN50/DN80
  • connection flange acc. to DIN EN 1092-2 | Input PN40 output PN16
  • seal EPDM
  • set pressure 3,0 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€2,161.80*

€2,572.54 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN20/DN32 SF06, gastight bonnet EPDM, with lifting device lever

SF06100104

flange-safety valve DN20/DN32 SF06, gastight bonnet EPDM, with lifting device lever

flange-safety valve DN20/DN32 SF06 for liquid and 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 DN20/DN32
  • connection flange acc. to DIN EN 1092-2 | Input PN40 output PN16
  • seal EPDM
  • set pressure 0,2 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€811.90*

€966.16 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN25/DN25 SF02, cast steel 1.0619+N EPDM, with lever

SF02000105

flange-safety valve DN25/DN25 SF02, cast steel 1.0619+N EPDM, with lever

flange-safety valve DN25/DN25 pressure 0,5 up to max. 40 bar closed lifting device and closed bonnet for liquid and gaseous media

Technical features

  • diameter DN25/DN25
  • connection flange acc. to DIN EN 1092-1
  • seal EPDM
  • set pressure 0,5 up to max. 40 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€911.80*

€1,085.04 VAT included.

Delivery time
2 - 3 weeks

safety valve bellow & gastight cap DN15/DN25 SF04, PTFE, without lifting device

SF04020303

safety valve bellow & gastight cap DN15/DN25 SF04, PTFE, without lifting device

safety valve DN15/DN25 SF04 with bellows & gastight cap stainless steel seal PTFE pressure 1,2 - 40,0 bar

Technical features

  • diameter DN15/DN25
  • connection flange acc. to DIN EN 1092-1
  • seal PTFE
  • set pressure 1,2 - 40,0 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€2,390.60*

€2,844.81 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN20/DN32 SF06, gastight bonnet FKM, without lifting device

SF06000204

flange-safety valve DN20/DN32 SF06, gastight bonnet FKM, without lifting device

flange-safety valve DN20/DN32 SF06 for liquid and gaseous media made of Spheriodal graphite cast iron 5.1303 seal FKM set pressure 0,2 - 40,0 bar without lifting device

Technical features

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

€765.00*

€910.35 VAT included.

Delivery time
3 - 5 working days

flange-safety valve DN65/DN65 SF0201, cast steel 1.0619+N FPM, without lever

SF02010209

flange-safety valve DN65/DN65 SF0201, cast steel 1.0619+N FPM, without lever

flange-safety valve DN65/DN65 pressure 0,5 up to max. 40 bar without lever for liquid and gaseous media made of cast steel 1.0619+N seal FPM

Technical features

  • diameter DN65/DN65
  • connection flange acc. to DIN EN 1092-1
  • seal FPM
  • set pressure 0,5 up to max. 40 bar
  • media liquid and gaseous media
  • 24 months warranty
    Certified

€1,427.10*

€1,698.25 VAT included.

Delivery time
2 - 3 weeks

We are here for you

Special requests, spare parts or a quick support? Our staff will answer your questions and concerns immediately.

You can reach us from Monday to Friday at +497143 9666900 and any time at sales@nieruf.com

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Competently

Technical and commercial expertise form the basis for developing qualified solutions tailored precisely to the needs of our customers.

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We do not adhere to rigid guidelines but instead focus on the individual wishes and needs of our customers. They are more important to us than internal company processes.

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Contact

Do you need help?

For all questions we are available by phone

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+49 7143/9666-900

or send us an e-mail:

sales@nieruf.com

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If you have any questions, we are available by phone from Monday to Friday from 8:30 a.m. to 5:00 p.m.

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07143 / 96669 - 00

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