Double Door Check Valve Model 256-D

The Century Model 256-D is a dual-door check valve that provides rapid, non-slam backflow prevention. It utilizes two spring-loaded, semi-circular plates (doors) that pivot from a central pin, allowing for a shorter travel distance from open to close than a conventional swing check. This design significantly reduces water hammer and is housed in a compact wafer type body, making it ideal for space-sensitive and vibration-sensitive applications.

Key Features: UL Listed, FM Approved, Dual-Door / Non-Slam Design, Spring-Assisted Closure, Compact Wafer Body, Low Cracking Pressure.

Primary Use: Backflow prevention in high-rise buildings, fire pump discharge, and vertical riser applications where minimizing water hammer is critical.

Widely used across various sectors, including: Commercial Fire Protection, HVAC Chiller Lines, and General Industrial Water Service.