The BONOMI EXME540S SERIES 540S EPOXY COATED CAST IRON BODY ST. ST. DISC BUNA-N SEATS WAFER STYLE BUTTERFLY VALVE AND VALBIA CSA APPROVED EXPLOSION PROOF ELECTRIC ACTUATOR is a 2-way, rubber lined wafer-style butterfly valve with stainless steel disc and Buna-N seats. It is suitable for HVAC, water, and air applications.

The valve's specifications include ISO 5211 direct mount/square stem, epoxy coated ductile iron wafer body with stainless steel disc, BUNA seats (10°F to 250°F), API609 face to face flange, floating dual shaft disc design, MSS SP 67 compliant, no pins in disc to prevent potential leak points.

The actuator's specifications include NEMA 4x, 7, 8 & 9 (CSA Approved), enclosure conforms to IP68 with explosion-protected performance and 1/2” FNPT conduit connection, temperature range: 22°F to 158°F, clutch-less manual override, thermostatically controlled anti-condensation heater for working conditions, self-locking gear system, available in both ON/OFF (00*) or 4~20 mA MODULATING (02*), 30% duty cycle (ON/OFF) and 75% duty cycle (MODULATING), ISO 5211 mounting bolt pattern and DIN 3337 double square drive, ± 5° mechanical stop on 0° and 90°, continuous mechanical position indicator, built-in thermal overload protection to prevent motor burnout, and 2 auxiliary SPDT switches.