Blackmer BV Series 1" Differential Bypass Valve

The Blackmer BV Series 1-inch differential bypass valve is engineered for high-reliability performance in critical industrial and commercial HVAC systems. Unlike conventional valves that suffer from clogged sensing passages, this valve features a robust design with no small, easily plugged components, ensuring consistent operation even in demanding environments.

Key to its smooth performance is the patented dash-pot design. When the valve opens, a small chamber in the stem fills with liquid, creating a hydraulic cushion. This mechanism prevents the valve from slamming shut during sudden pressure drops, reducing noise and extending the service life of the system components. With only two moving parts, maintenance is simplified, and the risk of mechanical failure is significantly reduced.

• Patented dash-pot design ensures quiet, slam-free closing action.
• Eliminates small sensing passages prone to plugging, enhancing reliability.
• Precise opening at preset spring pressure for accurate flow regulation.
• Minimal moving parts (only two) for easier maintenance and durability.
• 1-inch connection size suitable for standard piping configurations.