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Valve Motion:
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Your choices are...
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Rotary Motion Valve
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Rotary motion valves (rotary valves) such as ball, plug and butterfly valves that rotate through a quarter-turn (90 degrees) or more from open to close. This includes multiturn valves.
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Linear Motion Valve
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Linear motion valves (linear valves) such as gate, globe, diaphragm, pinch, and angle-style valves have a sliding stem design that pushes the closure element open or closed. The valve stem may rise while rotating (multi-turn) or may rise without rotating.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Operation
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Your choices are...
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On / Off (isolating)
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Actuator motion is limited to preset or open and closed positions.
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Modulating
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Actuator motion is controlable to allow valve to be "throttled" to keep process in proper measure or proportion.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Valve Stem Stroke Length:
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Number of Turns (For Multi-turn Actuators):
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Number of turns performed by a multi-turn actuator, as the rotating valve stem moves from the fully closed to fully open valve position.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Actuator Force (Seating Thrust):
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Control Signal Input:
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Throttling valves regulate the flow, pressure or temperature of the service. They can move to any position within the stroke of the valve and hold that position, including full on or full off. The addition of an actuator to a throttling valve, which has the ability to adjust to a signal, is called a control valve. An actuator used in throttling or modulating service is part of the control loop consisting of a sensing device, controller and an actuator mounted on a valve. The actuator receives a control input signal from the controller or positioner and adjusts closure element position accordingly.
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Your choices are...
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Milliampere Control Signal
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The input control signal to the actuator is a milliampere signal.
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Voltage Control Signal
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The input control signal to the actuator is a voltage signal.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Stem Diameter
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Diameter of the stem of the valve.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Actuation Time:
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The time required to fully close the linear motion valve.
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Search Logic:
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All matching products will have a value less than or equal to the specified value.
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Failsafe
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Your choices are...
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Close at No Power
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In case of power failure, actuator closes the valve.
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Close at No Control
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In case of loss of control signal, actuator closes the valve.
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Open at No Power
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In case of power failure, actuator opens the valve.
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Open at No Control
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In case of loss of control signal, actuator opens the valve.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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AC Voltage:
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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AC Phase:
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Your choices are...
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Single Phase
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Three Phase
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Search Logic:
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Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Duty Cycle:
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Duty cycle is a measurement of how long an actuator can actually work before it needs to rest. Electric motors typically generate a lot of heat, which requires occasional idling time.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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DC Voltage:
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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NEMA Enclosure:
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Your choices are...
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Type 4
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Constructed for indoor or outdoor use. Provides a degree of protection against contact with enclosed equipment, falling dirt, rain, sleet, snow and windblown dust, splashing water and hose-directed water. Undamaged by external formation of ice on enclosure.
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Type 4X
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Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment; to provide a degree of protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, hose-directed water, and corrosion; and that will be undamaged by the external formation of ice on the enclosure.
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Type 7
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Constructed for indoor use in hazardous locations classified as Class I, Division 1, Groups A, B, C or D as defined by NFPA70.
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Type 9
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Enclosures constructed for indoor use in hazardous locations classified as Class II, Division 1, Groups E, F, or G as defined in NFPA (National Fire Protection Agency) 70.
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Other NEMA Enclosure
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Overtorque Protection Options?
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The actuator uses a torque sensor to "switch off" electric motor when safe torque level is exceeded.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Travel Stop (Limit Stop)?
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Travel stops or limit stops, as they are also called, are a device in an actuator that restricts or limits the linear or rotary motion of an actuator. Limit stops may be adjustable or fixed.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Limit Switch / Remote Position Indicator?
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The actuator has an electromechanical limit switch (contacts) or a non-contact proximity sensor that allows the position / status of the actuator to be monitored from a remote location using proper connections. Usually the signal (or lack of a signal) generates some action in the process.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Local Position Indication?
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The actuator has a local visual display of the valve position based on actuator operation.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Integral Push-buttons and Controls?
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The actuator has controller options that enable the actuator to be operated locally.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Manual Override of Power Actuator?
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A handwheel or lever (fixed or declutchable) or hydraulic hand pump can be used to manually override the power actuator for emergency operation.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Thermostat / Motor Overload Protection?
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Thermal overload protection is provided for the motor.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Operating Temperature:
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This is the full required range of ambient operating temperature.
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Search Logic:
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User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Location
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Your choices are...
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Hazardous
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Actuator to be located in a location where any combination of combustible or potentially explosive mixtures exists in the surrounding atmosphere.
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Non-hazardous
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Actuator to be located in a location where there is no risk of exposure to combustible or potentially explosive media.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Part Numbers for Electric Actuators
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