Within closed pipeline systems, different and sometimes aggressive media have to be controlled and operated reliably. Shut-off valves from NieRuf Industrial Valves play a crucial role in a closed pipeline system and ensure that your facility operates reliably. Butterfly valves can be used to stop the flow rate entirely, thereby preventing damage to the facility. But they also play a crucial role in maintaining proper operation. Since the flow rate varies depending on the pipeline system you are using, we offer butterfly valves with different denominations from DN25 to DN400.
AK02110011
Butterfly valve DN 100 PN10-PN16 Lug type GGG40 with notch lever yellow NBR-70-black DVGW gas
AK05110006
Butterfly valve DN 32 PN16 Wafer type body made of cast iron EN GJL-250 (GG25) with lever NBR
AK01110008
Butterfly valve DN 50 PN6-PN10-PN16 & ANSI150 Wafer type GGG40 with notch lever yellow NBR-70-black DVGW gas
AK02110013
Butterfly valve DN 150 PN10-PN16 Lug type GGG40 with notch lever with yellow sleeve NBR-70-black DVGW gas
AK01110208
Butterfly valve DN 50 PN6-PN10-PN16 & ANSI150 Wafer type body made of GGG40 with electric actuator 24-240V AC/DC seal NBR-70-black DVGW gas industry design
AK01110508
Butterfly valve DN 50 Wafer type body made of GGG40 with pneumatic actuator single acting normally closed seal NBR-70-black DVGW gas industry design
AK01100111
Butterfly valve DN 100 PN6-PN10-PN16 & ANSI150 Wafer type GGG40 with Worm gear EPDM DVGW drinking water, WRAS, ACS, W270
AK01110108
Butterfly valve DN 50 PN6-PN10-PN16 & ANSI150 Wafer type GGG40 with Worm gear NBR-70-black DVGW gas
The butterfly valve has a disk made of high quality stainless steel that can be operated from outside the system. When the valve is open, the disk is positioned parallel to the flow direction, thereby allowing fluids (such as water or drinking water) or gas to flow through the system with minimal flow resistance. This technical set-up allows for very high KV and KVS values. The big advantage of the butterfly valve versus for example the ball valve is that it requires very little space, since the intermediate flange are manufactured in a smaller face-to-face length. The flange within the butterfly valve can come with a lug type body or a wafer type body, depending on your preferences. The butterfly valve can be controlled with a lever, a crank handle (also called a gear), a pneumatic actuator (single-acting with spring reset or double-acting) or with an electric gear. Depending on the medium or gas, our butterfly valves come with a FKM, EPDM or NBR lip seal straight from our storage. Which seal or lip seal you should choose depends on the corrosion resistance you are going for. No matter what type of system you are operating, for example biogas, methane, water or naval architecture, we offer you the right shut-off valve.
NieRufs butterfly-valves have proved to be reliable, efficient, secure and long-lasting. Our shut-off valves are being manufactured from high-quality material, using the latest manufacturing techniques. Additionally, they sell for a good price, are easy to assemble and can be used in a variety of systems. Enjoy the many benefits and technical advantages of our butterfly-valves. Our free and competent consulting will help you find the right shut-off valve for your application.
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
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.
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.
We always strive to find the best solution for our customers. It is our goal and incentive to have completely satisfied customers.
Technical and commercial expertise form the basis for developing qualified solutions tailored precisely to the needs of our customers.
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 For all questions we are available by phone
Mo - Fr 08:30 - 17:00
or send us an e-mail:
Resistance check 
Frequently asked questions 
Configurator 
Angle seat valves
Ball valves
Butterfly valves
Check valves
Coaxial valves
Compensators
DISCO check valves
Diaphragm valve
Flow control valve
Globe valves
Knife gate valve
Manometer gauge valve
Needle valves
Overflow valves
Pressure reducing valves
Safety valves
Sight glass
Solenoid valve
Strainer
Vent-valve
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:
