SA93 Normally Closed Electric Thermal Actuator

When power is interrupted, the SA93 closes automatically, shutting off the valve to prevent heat from continuing to flow into the room. This eliminates standby energy waste and reduces heating costs — especially in intermittent heating applications.

A visual indicator on the side of the housing allows users and technicians to immediately confirm valve position (open/closed) at a glance — without removing covers or accessing electrical connections, making maintenance and troubleshooting fast and efficient.

Industry-standard M30×1.5 mounting thread fits all major manifold brands and valve bodies. No adapters or custom brackets required — install in seconds with standard tools, making retrofit and new installations equally straightforward.

Proven wax expansion technology delivers silent, maintenance-free operation. With no motors or gears to wear out, the SA93 offers exceptional long-term reliability in demanding HVAC environments — ideal for noise-sensitive residential and hospitality projects.

Rigorously tested to withstand over 100,000 operating cycles, the SA93 delivers consistent, maintenance-free performance throughout the lifetime of the building — reducing replacement costs and minimizing system downtime.

Sealed IP45-rated housing resists dust ingress and splashing water, while the corrosion-resistant construction ensures reliable performance in manifold cabinets, plant rooms, and mechanical spaces with moderate humidity or exposure.