Flowserve Worcester Controls 25F39SN6 R7 Pneumatic Actuator

The Flowserve Worcester Controls 25F39SN6 R7 Pneumatic Actuator is a rugged, industrially automated valve actuation assembly built around a 90-degree, direct-mounted stainless steel ball valve. Part of the Worcester Controls Flowserve F39 (Series 39) family, this pneumatic spring-return actuator uses a twin-piston rack-and-pinion mechanism to position the valve quickly and reliably for process isolation and automated fluid handling in chemical processing, water treatment, and manufacturing environments. It supports a working pressure range of 40–120 psi with a maximum of 120 psi and is designed for clean compressed air or non-corrosive gas, offering an operating temperature range from -40°F to 180°F in standard configuration. The actuator features an anodized aluminum housing, stainless steel valve body, guide rods, and fasteners, with ISO 5211 and NAMUR mounting compatibility for easy integration with ball valves, butterfly valves, or dampers. Its reinforced TFE seat provides durable sealing, while adjustable travel stops and modular accessory mounting enable customization, and its service life is specified at roughly 5 million cycles before overhaul. Common replacements include Flowserve Worcester F39 actuated ball valves, Bray, and Asco pneumatic valve automation assemblies.