Double eccentric butterfly valve: flange
The double eccentric butterfly valve offers excellent sealing and minimal wear due to its double eccentric design, which significantly extends its service life. In this type of valve, the valve disc is offset from the seat, so that when it rotates, it moves away from the seat rather than around it.
The double eccentric butterfly valve type AX131 is the absolute elite among high performance butterfly valves. The flanged butterfly valve, designed for high performance in critical applications, is available with WCB and stainless steel bodies. The high performance AX131 butterfly valve is available with seats made of materials such as RPTFE and INCONEL, which offer excellent resistance to chemicals and high temperatures.
Choose the double eccentric flanged butterfly valve type AX131 for reliable, high-performance flow control in industrial environments.
High-performance butterfly valve AX131, DNxx (Product number: 151-1325-xx)
- Double eccentric butterfly valve / Series 40LX4040 RPTFE
- Flange housing • Installation between flanges PN10/PN16
- Optional: Flange bore 150lbs (on request)
- Overall length according to EN 558-1, Series 20; ISO 5752 Series 20
- Tightness according to Class VI / ISO 5208, leak rate A
- head flange according to ISO 5211
- Housing: ASTM A351 CF8M
- Valve disc: ASTM A351 CF8M
- Shaft: ASTM A182 F316
- Seat ring: RPTFE (PTFE + 25%GF)
- packing: PTFE
- Max. operating pressure: ≤25 bar
- Temp. (min. max.): -50°C to +220°C
- Actuation: Hand lever (stainless steel SS316), gear, pneumatic & electric drive
- Accessories & Options: Limit switch box, solenoid valve, positioner, spindle extension
- approval TA Luft (ISO 15848)
- ATEX according to 2014/34/EU – Atex II 2GDc
High-performance butterfly valve AX131, DN100 (Product number: 151-1326-xx)
- Double eccentric butterfly valve / Series 40LX4040 INCONEL 718
- Flange housing • Installation between flanges PN10/PN16
- Optional: Flange bore 150lbs (on request)
- Overall length according to EN 558-1, Series 20; ISO 5752 Series 20
- Tightness according to Class V / ISO 5208, leak rate AA
- head flange according to ISO 5211
- Housing: ASTM A351 CF8M
- Valve disc: ASTM A351 CF8M
- Shaft: ASTM A182 F316
- Seat ring: INCONEL 718
- Packing: Graphite
- Max. operating pressure: ≤25 bar
- Temp. (min. max.): -50°C to +360°C (*)
- Actuation: Hand lever (stainless steel SS316), gear, pneumatic & electric drive
- Accessories & Options: Limit switch box, solenoid valve, positioner, spindle extension
- approval TA Luft (ISO 15848)
- ATEX according to 2014/34/EU – Atex II 2GDc
(*) It is recommended to install a heat sink at 225°C.
Bauform
Doppelexzentrische Absperrklappe, Anflansch
Anschluss
PN10, PN16, ANSI 150 (auf Anfrage)
Baulänge
EN 558-1, Reihe 20; ISO 5752 Series 20
Dichtheitsklasse
Class V / ISO 5208, Leckrate AA
Gehäuse
ASTM A351 CF8M, ASTM A216 WCB
Klappenscheibe
ASTM A351 CF8M
Sitzring
RPTFE (PTFE + 25%GF), INCONEL 718
Zulassung
TA Luft (ISO 15848), ATEX nach 2014/34/EU - Atex II 2GDc
Betätigung
Handhebel (Edelstahl SS316), Getriebe, Pneumatischer Antrieb, Elektrischer Antrieb
