WDL Valve supplies double-offset and triple-offset high performance butterfly valves for demanding isolation, automated cycling and severe process service. Wafer and flanged configurations, soft or metal seating, corrosion-resistant materials and pneumatic or electric actuation can be selected for the project conditions.
Double-offset valves move the shaft away from the disc and seat centerlines to reduce rubbing during opening and closing. They are commonly considered where lower torque, frequent cycling and reliable shutoff are priorities.
Triple-offset valves add a conical sealing geometry that minimizes sliding contact and supports metal-seated shutoff in higher-temperature, higher-pressure or fire-safe service.
Compare the double-offset wafer valve และ pneumatic triple-offset wafer valve.

High performance butterfly valves are evaluated for steam and condensate, oil and gas, petrochemical utilities, high-temperature gas, cooling water, vacuum, corrosive process media and frequent-cycle automated isolation. The correct offset, seat and material combination depends on the complete operating envelope, not only nominal line pressure.
ดู double-offset selection guide และ triple-offset guide for additional engineering detail.
Include the quantity, inspection scope and documentation list when these are defined by the project.
Triple-offset construction is commonly considered when metal seating, elevated temperature, higher pressure, fire-safe duty or reduced seat rubbing is important. The final choice depends on the required leakage performance and operating cycle.
Yes. Pneumatic and electric actuators can be selected with positioners, limit switches and solenoid valves. Required torque, cycle time, fail position and control signal should be stated.
The range includes common carbon and stainless steels plus project-specific duplex, nickel alloy, titanium and copper alloy options. Wetted-part materials should be reviewed as a complete set.
Send your line data, pressure and temperature, material requirement, leakage class and actuation details for a configuration review and quotation.
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