Dual Plate Wafer Check Valve Dimensions - Extended Body Type

Extended body dual plate wafer check valves are specialized flow control devices designed for applications requiring additional clearance and enhanced structural integrity. Unlike standard wafer check valves, the extended body design provides increased face-to-face dimensions while maintaining the compact wafer-style installation between flanges. These valves feature two independently hinged disc plates that rotate on a central pin, offering superior sealing performance and reduced pressure drop compared to traditional swing check valves.

The extended body configuration is particularly advantageous in high-pressure applications and systems where standard wafer bodies may not provide sufficient structural support. Manufactured in accordance with API 594 standards, these valves are available in sizes ranging from 2" to 48" NPS with pressure ratings from Class 150 to Class 2500. The dual plate design ensures reliable backflow prevention while minimizing water hammer effects through controlled disc closure.

Key benefits include lower installation costs due to the wafer-style mounting, reduced weight compared to flanged alternatives, and excellent flow characteristics with minimal turbulence. The extended body construction accommodates higher differential pressures and provides enhanced durability in demanding industrial applications. These valves are commonly specified in petrochemical, power generation, and water treatment facilities where space constraints and performance requirements demand optimal engineering solutions.

Below you'll find comprehensive dimension tables and technical specifications for various sizes and pressure classes of extended body dual plate wafer check valves.