This selection covers all industrial requirements – from drinking water to high-pressure steam, from CIP/SIP to flue gas.
Centric butterfly valves are the preferred solution for water, HVAC, neutral media, chemical light and numerous industrial applications. The centric geometry enables very good tightness at moderate pressures, low actuating torques and high efficiency. The centric butterfly valves are available as wafer (intermediate flange) and lug (end flap) versions.
| Feature | Type 23 | Type 20 | Type 22 | Type 21 | Victoria 480 / 481 / 487 | Isoria 10 / 16 | BOAX-SF / BOAX-S | KG9 | KG7 |
| Connection | Lug | Wafer | Wafer | Lug | Lug / Wafer | Lug / Wafer | Lug / Wafer | Wafer | Lug |
| Nominal pressure | PN 10/16 | PN 10/16 | PN 10/16 | PN 10/16 | PN 10/16 | PN 6/10/16 | PN 6/10/16 | PN 10/16 | PN 10/16 |
| Nominal size | DN 25 – DN 300 | DN 25 – DN 300 | DN 50 – DN 300 | DN 50 – DN 300 | DN 25 – DN 600 | DN 40 – DN 250 | DN 20 – DN 600 | DN 40 – DN 300 | DN 50 – DN 300 |
| Temperature | until approx. 120 °C | until approx. 120 °C | until approx. 120 °C | until approx. 120 °C | -10 to +130 °C | -10 to +130 °C | -10 to +130 °C | up to 120 °C | up to 120 °C |
| Material | Cast iron / Stainless steel | Cast iron with nylon-11 | Cast iron | Cast iron | Cast iron / stainless steel | Spheroidal graphite cast iron | Spheroidal graphite cast iron | Cast iron | Spheroidal graphite cast iron |
| Gasket | EPDM / NBR | EPDM / NBR | Elastomer | Elastomer | EPDM / NBR | Elastomer Ring bellows | EPDM / NBR | EPDM / NBR | EPDM / NBR |
| Special feature | End fitting- capable, ISO-5211, robust lug design | very light & corrosion-resistant | Standard Industrial wafers | Low-maintenance, suitable for end fittings | HVAC-optimized face-to-face length, several body shapes | High tightness, DVGW-compliant | Very robust HVAC industrial version | Compact industrial flap | End fitting – capable, heavy industrial design |
Double eccentric butterfly valves (“High Performance”) are suitable for higher pressures, higher temperatures, demanding media and fire-safe requirements. Their geometry minimizes friction between the disc and seat – ideal for the steam, chemical, energy and process industries.
| Feature | Type 41 | Type 40 | Danaïs 150 |
| Connection | Lug | Wafer | Lug / Wafer |
| Nominal pressure | PN 10 – PN 100 | PN 10 – PN 100 | PN 10 – PN 40 |
| Nominal size | DN 50 – DN 1200 | DN 50 – DN 1200 | DN 50 – DN 1200 |
| Temperature | up to approx. 260 °C | up to approx. 260 °C | -29 to +260 °C |
| Material | Carbon steel / stainless steel | Steel / stainless steel | Cast steel / stainless steel |
| Gasket | RPTFE/ Metal | PTFE / Fire-Safe | Plastomer / PTFE |
| Special feature | Fire-safe, high pressures | Low torque, ISO-5211 | Extremely tight, high-quality high performance damper |
Ring butterfly valves are special valves for extremely high temperatures, dust-laden media and flue gas processes.
They are mostly used in kilns, cement plants, biomass plants, industrial furnaces and flue gas pipes.
Our butterfly valves cover all relevant industries.
Water treatment and process control
Control of aggressive media and cooling circuits
Steam, hot water and cooling circuits in power plants
Drinking water, waste water and rainwater utilization
Industrial furnaces, smelting plants, cement works, glass and ceramic production
Process gas and compressed air control
Integration into complex systems and control circuits
Decades of expertise
in fittings technology
and filter construction
Customized adaptations and special designs
Adaptation of existing fittings to new requirements
Pneumatic and electric actuators, limit switches, positioners
Short delivery times and worldwide delivery
Certified processes and 100% final inspection
In addition to our wide range of butterfly valves, we offer customized solutions for your processes in cooperation with Industriefabrik Schneider GmbH:
Your advantages: Shorter installation times, greater operational reliability, individual adaptation to your requirements
