DOUBLE DISC GATE VALVE

We offer Double Disc Gate Valves for Superior Gas Isolation. Our Double Disc Gate Valve Boast a fabricated construction, catering to the isolation needs of Air/Gas applications. with dirty media and the requirement for a high degree of isolation, our valves emerge as preferred choice. The metal-to-metal sealing and wedging action ensures a superior degree of isolation, with Hard -faced seating surfaces on both the disc and the body.

Featuring a unique wedging arrangement, a small wedge fits between two-disc plates, provides flexibility for seating. Upon valve closure, the two-disc plates adjust their position to achieve perfect contact with the body seat.  During opening the disc plates collapse, allowing the disc assembly to move freely out of the bore.

The rising spindle type design ensures smooth opening and closing, with the spindle connected to a small wedge and stem nut mounted in the gearbox. The rotation of the stem nut moves the spindle up and down, facilitating the entire disc assembly. The stuffing box situated a top the bonnet, prevents gas leakage from inside the valve to the atmosphere. Addition protection is ensured by the superstructure and the protection tube, safeguarding the stem.

Motorized Double Disc Gate Valves are offered with AUMA / Equivalent make Electric Actuators.

Size Range: 300 mm to 3000 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 / Coke oven Gas / Flue Gas etc.

Design Temperature: -25°C to 350 °C

Pressure Ratings: PN 1 / PN10

End Connection: Double Flanged 

Face to Face:  Mfg. STD

Flange Drilling:  IS6392 /ASME B16.5 / ASME B16.47 / BS EN 1092-1/ Mfg. STD.

Testing:  ANSI FCI 70-2 /DIN3230 / Mfg. STD

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

                                  100 % at Downstream.   

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

Design Codes and Standards: ASME B16.34 / ASME SEC VIII; SEC V; SEC IX

SALIENT FEATURES:

• Taper seat design
• Stress relief using the VSR method before final assembly, ensuring a longer life
• Bi-directional capability
• Hydro Seal arrangement for 100% man-safe Isolation
• 100% Leak tight
• Lower Torque, Economical, Longer Life
• Lighter and Stronger Construction
• Maintenance-free Bearings
• Disc and Seal easily Replaceable.
• Anti-Blowout
• Seismic Qualified Design
• Steam purging arrangement for melting tar, with two drain ports for removing molten tar and other trapped materials.

APPLICATION INDUSTRIES:

• Power plants
• Steel Plants
• Coke oven Gas isolation
• Cement
• Fertilizers
• Any process lines that need the control or isolation of Flowing media