Thanks to advanced technology we can state firmly that the DURCO BTV butterfly valves keep chemical fluids in your process piping and out of the environment. A self adjusting triple stem seal system assures no leakage to the atmosphere Viton seat energizer and concave PTFE liner design provide dependable consistent shutoff and closure torque. Spherical seat design of the disc and liner provides a 360° seal for long service life. The Viton energizer is isolated and protected in a machined groove of the valve body.
The concave designed liner is recessed into the valve body and this reduces the possibility of torn liners due to cold flow into the valve waterway. Optional available: UHMWP and Durlon II and PFA-conductive liner materials.
Butterfly valve BTW489V (Art.-Nr.: 150-1500-xx)
- DN50, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600
- DURCO, PTFE lined, Type BTV-2000
- WAFER design
- Max. temperature: +177°C
- Nominal pressure: 10 bar
- Face to face acc. to EN 558, Row 20
- Assembly between flanges PN10 / PN16 or ANSI 150lbs
- Body: ductile iron EN-JS 1049 (GGG40.3)
- Disc & shaft: ductile iron EN-JS 1049 (GGG40.3) / PFA coated
- Liner: PTFE
- Energizer: Viton
- Operation: bare stem
Type
Butterfly Valve
Operations
Chainwheel, Electric Actuator, Pneumatic double-acting, Pneumatic single-acting, Lever, Topflange (ISO 5211), Gearbox with Handwheel
Sizes
DN50, DN80, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600, 2", 3", 4", 6", 8", 10", 12", 14", 16", 18", 20", 24"
Flange connection
PN10, ANSI 150, PN16
Face-to-face
DIN EN 558-1 Line 20
Body material
GGG40
Butterfly Disc
PFA coated
Disc sealing
PTFE
Pressure range
PN10
Lining/Coating
PTFE
Connection
Flanges
