Skip to main content

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.

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.

Filter

Product finder

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

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

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

diameter:

DN20/DN32

connection:

flange acc. to DIN EN 1092-1

seal:

metal

set pressure:

0,8 - 40,0 bar

media:

liquid and gaseous media

24 months warranty
Certified
€2,485.30*

€2,957.51 VAT included.

Delivery time: 3 - 5 working days

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

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

flange-safety valve DN50/DN50 EN-JL1040 with lever for gaseous media seal EPDM pressure 0,5 up to max. 16 bar

diameter:

DN50/DN50

connection:

flange acc. to DIN EN 1092-2

seal:

EPDM

set pressure:

0,5 up to max. 16 bar

media:

gaseous media

24 months warranty
Certified
€753.70*

€896.90 VAT included.

Delivery time: 2 - 3 weeks

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

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

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 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

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

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

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 for liquid and gaseous media made of stainless steel seal metal set pressure 0,2 - 40,0 bar with lifting device lever

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

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 DN20/DN20 closed lifting device and closed bonnet made of cast iron EN-JL1040 pressure 0,3 up to max. 16 bar with lever

diameter:

DN20/DN20

connection:

flange acc. to DIN EN 1092-2

seal:

metal

set pressure:

0,3 up to max. 16 bar

media:

liquid and gaseous media

24 months warranty
Certified
€477.80*

€568.58 VAT included.

Delivery time: 2 - 3 weeks

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

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 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

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 for gaseous media made of cast steel seal metal pressure 0,2 up to max. 40 bar with lever

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 for liquid and gaseous media made of stainless steel seal EPDM set pressure 0,2 - 40,0 bar with lifting device lever

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 for gaseous media made of cast steel seal EPDM pressure 0,5 up to max. 40 bar 0°C up to + 150°C

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 for liquid and gaseous media made of stainless steel seal PTFE set pressure 0,2 - 40,0 bar without lifting device

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 for gaseous media made of Spheriodal graphite cast iron 5.1303 seal PTFE set pressure 0,2 - 40,0 bar with lifting device lever

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 for gaseous media made of Spheriodal graphite cast iron 5.1303 seal EPDM set pressure 0,2 - 40,0 bar with lifting device lever

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 for liquid and gaseous media made of stainless steel seal metal set pressure 0,2 - 40,0 bar without lifting device

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 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

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 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

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 pressure 0,5 up to max. 40 bar closed lifting device and closed bonnet for liquid and gaseous media

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

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


FAQ

There 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

Catalog

Quality


Our certified quality management according to DIN EN ISO 9001: 2015 is part of our DNA. With our test stands we can carry out pressure tests with up to 350 bar with air and water as well as leak tests according to DIN EN 122661.

This is NieRuf


Committed

Commitment engenders trust. We stand by our word and are convinced that as a result not only our customers but also everyone we work with can rely on us.

Motivated

We always strive to find the best solution for our customers. It is our goal and incentive to have completely satisfied customers.

Competently

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

Flexible

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.

Contact

Contact

Do you need help?

For all questions we are available by phone

Mo - Fr 08:30 - 17:00

+49 7143/9666-900

or send us an e-mail:

sales@nieruf.com

Resistance check
Frequently asked questions
Configurator
Call NieRuf GmbH

Need help?

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

order via mail:

07143 / 96669 - 00