Valves provide pressure reduction and flow control through piping systems and are critical to industries that form the backbone of the modern world. The valve actuator is crucial for valve operation. Actuators are powered devices that move valves between open and closed states. The valves can open or close depending on the movement it receives from an actuator; this motion is responsible for controlling the flow and pressure within an industrial system or process.
Jamesbury™ Quadra-Powr™ spring diaphragm QPX series quarter turn actuators are applicable for modulating control and on-off service. These actuators offer an exceptionally long cycle life and are well-suited to operate almost any type of rotary valve. The QPX actuator provides smooth and efficient quarter-turn valve operation and safe and reliable operation even when minimal supply pressure is available.
Exclusively developed for quarter-turn valve service, Quadra-Powr™ X spring-diaphragm actuators provide safe and reliable operation even when minimal supply pressures are available. Yet they can operate at pressures as high as 7 bar (100 psi).
These units operate by air, gas, water, oil, or other supply media compatible with the actuator's ductile iron/carbon steel casing and the Buna-N diaphragm reinforced with polyamide fabric. This unique spring-diaphragm actuator for rotary valves provides safe, smooth, and reliable valve actuation at minimal pressures and up to 100 psi (6.9 BAR). Quadra-Powr X torque outputs range from 15 to 796 Nm (11 to 587 ft-lbs), depending on actuator selection and available supply pressure.
Jamesbury™ Quadra-Powr™ Features:
- Rolling diaphragm for minimum friction
- Low friction bearings – factory lubricated for lifetime
- Field reversible for spring to open or close simply by flipping actuator over
- Safety contained springs prevent hazards of inadvertent ejection during maintenance
- Corrosion resistant – two layer epoxy and polyurethane paint with stainless steel fasteners
- Adjustable stops for both open and closed positions
- Wide input pressure range – up to 7 bar (100 psi)
