![Belimo B2050VS-01+GRCX120-SR-T N4 Ball Valve (VS), DN 1/2" [15], 2-way, Cv 1 Valve Actuator, Non fail-safe, AC 100...240 V, Modulating, NEMA 4X Actuator fitted Please note: Due to a supplier issue, certain NEMA 4 actuator covers will be supplied in gray instead of orange until further notice. This change ensures uninterrupted shipping, and the same protective properties and product specifications.](https://hsgroupexport.com/wp-content/uploads/2025/08/VS_VSS_GR-product_retina-300x300.jpg)
Siemens 331-2793 Pneumatic Actuator pivot mounting type,
Designed with a 4-inch (102 mm) stroke, the No. 6
Pneumatic Actuator is a rugged, metal-fabricated device
that provides gradual or positive actuation of HVAC and
fire/smoke dampers.
Applications
Recommended for multiple applications, the No. 6
Pneumatic Actuator is excellent for control of outdoor
air, return air, mixe air, exhaust, face and bypass, fan
discharge, multisection, static pressure control, fan inlet
vanes and other special applications.
An actuator marked with an asterisk is recognize under
UL’s Damper Actuator category (EMKU2) for use on fire
dampers and leakage-rated dampers.
