Butterfly Damper Valves

We Offer Butterfly Damper Valves in sizes ranging from 7000 mm to 12000 mm, in both round and Rectangular Shapes, with a Pressure rating of up to 10197 mm WC.

Butterfly damper valve has a single disc connected with a concentric or offset Design.

Our Butterfly Damper valves can be designed for t up to 1250 Deg C, using our Refractory Lined Dampers. Also, these Butterfly dampers can be designed for 100% sealing efficiency i.e., zero leakage.

Type: Circular / Rectangular / Square 

Size Range: Ø 40 mm to Ø 5000 mm & above

Material Of Construction:  ASTM A 36 / ASTM A 240 Type 304L / ASTM A 240 Type 316L / ASTM A 516 Gr-70 / ASTM A 387 Gr-11 / ASTM A 240 Type 310S/ As per Client Requirement.

Flowing Media: AIR/Flue gas etc.

Design Temperature: -25°C to 825°C

Pressure Ratings: PN 1

End Connection: Wafer / Double Flanged (Short/Long Pattern) and Butt                               

                                Weld End

Face to Face: API 609 / ASME B16.10 / ISO 5752 / BS EN 558 / Mfg. STD

Flange Drilling: ASME B16.5 / ASME B16.47 / BS EN 1092-1/ Mfg. STD.

Butt Weld Ends: ASME B16.25

Testing: AMCA 511 / ASME AG-1 / ANSI FCI 70-2 / Mfg. STD

Sealing Efficiency: 100 % Leak Proof [ Through Body and Stem] & 99.95 % 

                                  at Downstream

Drive Mode: Manual / Motorized / Pneumatic / Hydraulic etc.

Design Codes and Standards: ASME B16.34 / ASME AG-1 / ERDA 76-21 

                                                        /API 609 / ASME SEC VIII; SEC V; SEC IX

SALIENT FEATURES:

• Bi-directional
• Spark Proof
• Low pressure drops
• 100% sealing to Atmosphere
• Lower Torque, Economical, Longer Life
• Lighter and Stronger Construction
• Maintenance-free Bearings
• Disc and Seal easily Replaceable.
• Anti-Blowout
• Seismic Qualified Design

APPLICATIONS:

• Dust Extraction System
• Throttling in Ventilation System
• Exhaust System
• Any process lines that need the control or isolation of Flowing media