- Type: Tightly closing butterfly valve, also possible on each side on request (type A)
- Design: Industrial valve in double eccentric disc design
welded design - Nominal size: DN 100 – DN 2000
- Nominal pressure: Up to PN 63
- Temperature range: -196 to +550 °C
- Flange connection: DIN, ANSI, BS, MSS, API, JIS etc.
butterfly valves with butt weld ends (up to DN 800)
Face-to-face length DIN EN 558-1 / ISO 5752 series 14 (F4) or to customer specification - Material: High-temperature pressure vessel steel 1.0425 (P265 GH/HII), 16 Mo3
Stainless steel 1.4541, 1.4571, 1.4301, 1.4401, 1.4439
Duplex 1.4462
Super duplex 1.4501, 1.4410
a.o. - Lining: Hard rubber, soft rubber, natural rubber, hard material coating
- Disc seal: NBR (Perbunan®), PTFE, 1.4571 graphite or PTFE lamellas, stainless steel
- Shaft seal: Stuffing box
Double or safety stuffing box
U-seal and O-ring NBR or FKM
U-seal and pressure ring PTFE
Double U-seal and O-ring made of NBR, FKM
Double U-seal and pressure ring PTFE - Drive: Self-locking gear with position indicator
Operation by handwheel or directly mounted electric actuator
Pneumatic and hydraulic actuators including controls
and safety position via return spring
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KONRAD Armatur type series A
Overview drawing and parts list
KONRAD Armatur type series A
Exploded view
