TEL: 0718-2822168

TEDAV High Performance Butterfly Valve – Wafer / Lug Type

TEDAV High Performance Butterfly Valve – Wafer / Lug Type

Butterfly valve for optimal flow control, zero leakage, and long service life. Designed for HVAC, water treatment, chemical, oil & gas, and industrial pipelines.



TEDAV butterfly valve series (wafer and lug type) provides reliable shut-off and modulating control in demanding applications. Manufactured with ductile iron, WCB carbon steel, or stainless steel CF8/CF8M body, the valve ensures excellent corrosion resistance and mechanical strength. The advanced disc profile reduces flow turbulence and pressure drop, while the replaceable soft or metal seat guarantees bubble-tight sealing (ISO 5208 Rate A).


Key features:

- Bidirectional sealing – suitable for reverse flow.

- ISO 5211 top mounting pad – direct actuator installation.

- Anti-blowout stem design and low torque operation.

- Replaceable seat and stem seals for easy maintenance.

- Available with manual lever, worm gear, pneumatic actuator, or electric actuator.


Product Details

 

TEDAV butterfly valve series (wafer and lug type) provides reliable shut-off and modulating control in demanding applications. Manufactured with ductile iron, WCB carbon steel, or stainless steel CF8/CF8M body, the valve ensures excellent corrosion resistance and mechanical strength. The advanced disc profile reduces flow turbulence and pressure drop, while the replaceable soft or metal seat guarantees bubble-tight sealing (ISO 5208 Rate A).


Key features:

- Bidirectional sealing – suitable for reverse flow.

- ISO 5211 top mounting pad – direct actuator installation.

- Anti-blowout stem design and low torque operation.

- Replaceable seat and stem seals for easy maintenance.

- Available with manual lever, worm gear, pneumatic actuator, or electric actuator.


ParameterValue
Valve TypeConcentric / Double-offset Butterfly Valve
Size RangeDN50 – DN1200 (2" – 48")
Pressure RatingPN10 / PN16 / PN25 / Class150 (Max 2.5 MPa)
Applicable MediaWater, oil, gas, steam, seawater, weak acid/alkali, petroleum-based fluids (viscosity up to 600 cSt)
Body MaterialDuctile Iron, WCB, CF8 (304), CF8M (316)
Disc MaterialStainless Steel 304/316, Duplex, Coated Ductile Iron
Seat MaterialEPDM, NBR, PTFE, Viton, Metal Seated (Graphite)
End ConnectionWafer / Lug / Flanged (ASME B16.5, EN 1092-1)
Face-to-Face StandardEN 558 Series 20 / API 609
Top Flange StandardISO 5211
Leakage RateZero leakage for soft seat; Class VI for metal seated
Temperature Range-40°C to +250°C (depending on seat material)
Installation OrientationRecommended horizontal or vertical (any position allowed)


Actuator Options (Pneumatic / Electric)

Actuator TypeSupply / PowerControl Features
Pneumatic double-acting4 – 8 bar (60–115 psi)On/Off or modulating with positioner
Pneumatic spring return4 – 8 barFail-safe closed/open
Electric actuator110V AC, 220V AC, 24V DC40W–180W; 4-20mA / 0-10V control
Manual overrideLever handle (DN50–200)Worm gear for larger sizes