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Double Disc Gate Valve

High Performance • Durable • Leak Proof

API 6DASME B16.34ISO 17292CE Certified

Reliable Double Disc Gate Valve suitable for various industrial process applications

Technical Specifications

Key Features & Applications

Industrial piping systems require reliable isolation valves that can provide secure shut-off, low flow resistance and dependable sealing under demanding operating conditions. African Valve, a Double Disc Gate Valve Supplier in Egypt, supplies double disc gate valves for isolation in oil & gas, refineries, petrochemical plants, power generation, chemical processing, water systems and other industrial applications.


Double disc gate valves use two discs within the gate assembly to establish sealing against the valve seats. Depending on the design, the discs can use a mechanical, spring-loaded or expanding arrangement to develop seating force. When fully open, the gate is lifted clear of the flow passage, providing a relatively unobstructed flow path and low pressure loss.


Technical Specifications

ParameterSpecification
Valve TypeDouble Disc Gate Valve
FunctionPipeline Isolation / Shut-Off
Size RangeProject-Specific
Pressure RatingClass 150 to Class 2500 / PN25 to PN450, depending on design
GateDouble Disc / Application-Specific Configuration
End ConnectionFlanged / Butt Weld / Other applicable connections
OperationHandwheel / Gear / Pneumatic / Electric / Hydraulic
InstallationHorizontal / Vertical, depending on configuration


Materials & Components

ComponentTypical Materials
Body & BonnetASTM A216 WCB / A352 LCB / A217 WC6 / WC9 / A351 CF8 / CF8M
DiscsCarbon Steel / Alloy Steel / Stainless Steel / Duplex
Seat RingsA105 / A182 F6a / F304 / F316 / Hard-Faced or Stellite-Faced
StemAISI 410 / A182 F6a / F304 / F316 / 17-4PH
PackingFlexible Graphite / Expanded Graphite / PTFE / Low-Emission
GasketSpiral-Wound / Flexible Graphite / RTJ, where applicable
FastenersA193 B7 / B8 / B8M / A320 L7 with suitable A194 nuts


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DETAILS
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