Sensus QR-S Damping Device 321702-401 the SP9013E is the current

the SP9013E is the current manufacturer-authorized update for the AP9013E-3

providing the reliable high-limit and operating control required to maintain setpoint integrity

Smith 100144972 Fan Motor Assembly is a critical OEM component engineered for high-performance combustion and ventilation in commercial water heaters and boilers

Durable Construction: Cast iron body with brass trim provides superior resistance to mechanical wear

Maintenance Efficiency: Blowout-proof stem design and NPT threaded connections allow for rapid field installation and reduced downtime

Sensus QR-S Damping Device 321702-401 the SP9013E is the currentThe Sensus QR S Damping Device is a purpose built mechanical component designed to optimize gas pressure regulator performance in high demand environments. Engineering teams developed this device to address the rapid ignition cycle requirements of modern high efficiency boilers, burners, and generators. When high efficiency equipment triggers an electronic ignition, the sudden draw can create significant negative pressure, often leading to excessive