FISHER HSR-1628 Low Pressure Direct-Fired Regulator: Reliable Boiler Pressure Stabilization With Internal Pressure Sensing & Vent

The FISHER HSR-1628 pressure regulator, a premium offering from Emerson’s FISHER brand, is a specialized low-pressure direct-fired valve engineered for critical boiler pre-installation pressure stabilization (LOC477) and general pressure regulation (LOC870) in direct combustion systems. As a core product in the HSR series, it integrates two high-value features: internal pressure sensing and a built-in vent valve, addressing key needs for safety and precision in industrial boiler applications. 

The internal pressure-sensing mechanism eliminates external sensing lines, reducing leak risks and ensuring responsive, accurate regulation by directly monitoring downstream pressure—essential for maintaining stable fuel/gas supply to boilers. The integrated vent valve provides automatic over-pressure relief, a critical safety function that prevents equipment damage and operational hazards in closed-loop boiler systems. 

Designed explicitly for low-pressure environments, the HSR-1628 excels in direct-fired setups where consistent pressure is non-negotiable for efficient combustion, reduced emissions, and boiler longevity. Its robust construction—backed by FISHER’s decades of expertise in flow control—ensures durability, minimal maintenance, and compliance with industrial safety standards. For professionals seeking a reliable, feature-rich solution for boiler pressure management, the FISHER HSR-1628 stands as a trusted choice, merging precision engineering with application-specific design to deliver consistent performance in critical operations.