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Modulating Hydraulic Valve
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Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves.
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Supplier: Magnet-Schultz of America, Inc.Description: Proportional solenoid for hydraulics application
- Valve Motion: Linear Motion Valve
- Control Signal Input: Voltage Control Signal
- Hydraulic Actuator Type: Piston Cylinder Actuator
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Supplier: Parker Hannifin / Hydraulics GroupDescription: Spool type logic valves can also be used for directional switching, however, they are typically used in modulating applications to control flow or regulate pressure. Virtually any pressure or flow control function can be achieved with a spool type logic valve including; restrictive or priority
- Valve Type: Diverter Valves
- Actuation: Electric
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Supplier: WattsDescription: The WATTS ACV Rate of Flow Control Valve with Hydraulic Check Feature is designed to automatically limit flow rate to a constant, adjustable, maximum, and close drip-tight when downstream pressure becomes greater than upstream pressure. The throttling action of the valve is controlled
- Connection: Threaded, Bolt Flange
- Media Description: Water (General)
- Valve Type: Diaphragm Valves
- Actuation: Pilot Operated
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Supplier: Continental HydraulicsDescription: Utilizes a cartridge type, guided poppet, hydraulic operated, pilot assisted, counterbalance valve as a blocking or load-holding device for high pressure applications .OPERATIONSThe valve controls moving load and prevents it from running ahead of the pump and locking the load in any position
- Valve Type: Other
- Primary Material of Construction: Aluminum, Ductile Iron
- Actuation: Pilot Operated
- Media: Hydraulic Fluid
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Supplier: KSB AGDescription: Design Single-acting hydraulic actuator for mounting on quarter-turn valves (butterfly valves or ball valves). Top flange to ISO 5211. Control pressure up to 120 bar. Can be mounted on various types of valve stem ends (square end, flat end or key). Force transmission via rack-and-pinion
- Actuation Method: Hydraulic
- Operation: Modulating
- Valve Motion: Rotary Motion Valve
- Full Range Of Rotary Motion: Quarter Turn ( 90 degrees)
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Supplier: Bermad Automatic Control ValvesDescription: The Model 718-03 Electronic-Control Valve combines the advantages of an excellent modulating, line-pressure driven, hydraulic control valve with the advantages of electronic control. This valve responds to signals from the electronic controller BERMAD BE (optional) according to the set values
- Connection: Bolt Flange
- Actuation: Electric
- Material of Construction: Aluminum, Brass / Bronze, Cast Iron, Ductile Iron, Exotic Metal, Stainless Steel, Steel, Other
- Media Description: Water
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Supplier: Waterman Industries, Inc.Description: units. Each gate is designed and fabricated for its specific installation and function requirements. Uses and Criteria Rectangular valves are commonly used where low headroom prevents the use of conventional sluice gates, and where flow regulating (modulating) is a requirement. Other
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Supplier: BestBuyHeatingandAirConditioning.comDescription: Robertshaw Built-in-Thermostat Gas Valve. The 700 Series snap-action and snap-throttle (modulating) hydraulic controls are combination gas valves, thermostatically operated by a remote temperature sensing bulb. Two types of temperature adjustment models are available. One type is a single
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Supplier: DeZURIK, APCO and WillametteDescription: G-Series Actuators are available on large butterfly and plug valves where constant high torque capability throughout the stroke is required. They feature a rack-and-pinion design and are engineered for high-flow, high-cycle applications. They are available with either manual, cylinder or motor
- Travel Stop (Limit Stop): Yes
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Supplier: DFT Inc.Description: DFT® Vacuum Breakers provide effective protection against collapse of pressure vessels, tanks and rolls. They prevent condensate "back-up" when equipment is shut down or inlet steam is reduced by modulating control valves. In piping systems, DFT® Vacuum Breakers are used to break siphons
- Valve Type: Lift Check Valves
- Severe Service Rated: Yes
- Material of Construction: Stainless Steel
- Connection: Threaded
Featured Products for Modulating Hydraulic Valve Top
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The Skilmatic range is a self-contained electro-hydraulic valve actuation solution available for both quarter-turn and linear applications. The actuators incorporate sophisticated electronics that provide non-intrusive set-up and interrogation via an infra-red hand held remote. They are suitable for on/off, modulating and emergency shutdown duties in applications up to SIL 3. Linear thrust output 1.7 to 5500kN. Quarter-turn torque output 65 to 600,000Nm. Single-, three-phase or 24VDC power... (read more)Browse Electrohydraulic Valve Actuators and Hydraulic Valve Actuators Datasheets for Rotork plc -
Valve Highlights: · Proportional (modulating). · For stepless flow regulation. · 2-way. · Servo-operated. · DN 6 - DN 20. · Short reaction time. · Linear characteristic throughout the regulation range. · Closes on power failure (fail-safe function). · IP 67 coil enclosure. · 24 V dc supply voltage. Danfoss offers an exceptionally wide range of Solenoid Valves, available in direct-operated, servo-operated and assisted lift versions. An easy, economical way to control and regulate fluids and gases... (read more)Browse Specialty Industrial Process Controllers Datasheets for Danfoss, Inc. - Industrial Automation Division
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Electric Spring Return Actuators from ProMation Engineering. Available With or Without Manual Override. PA-PD Series offers 450"lbs-2,300"lbs spring return actuators with patented hydraulic damper to prevent point-of-closure shock. D Series offers Reversible Spring Return starting at 90"lbs. On/Off or Modulating, CW or CCW available. Not just fail-safe. These spring-return actuators are safe for the user and for the valve system!. Patented internal electronics protect against damage from... (read more)Browse Damper Actuators Datasheets for ProMation Engineering, Inc.
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offer several control modes for flexibility, including: On/Off (2 position control), Jog, and Proportional (modulating control). Patented hydraulic damper to prevent point-of-closure shock to valve dampers and installed applications. Models available for CW (clockwise spring return) or CCW (counter-clockwise spring return) applications. Proprietary electronic controls are integrated to protect damage from intermittent power surge situations. Available with or without Manual Override. (read more)Browse Valve Actuators Datasheets for ProMation Engineering, Inc.
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The Skilmatic range is a self-contained electro-hydraulic valve actuation solution available for both quarter-turn and linear applications. The actuators incorporate sophisticated electronics that provide non-intrusive set-up and interrogation via an infra-red hand held remote. They are suitable for on/off, modulating and emergency shutdown duties in applications up to SIL 3. Linear thrust output 1.7 to 5500kN. Quarter-turn torque output 65 to 600,000Nm. Single-, three-phase or 24VDC power... (read more)Browse Electrohydraulic Valve Actuators and Hydraulic Valve Actuators Datasheets for Rotork plc
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Valve Highlights: · Proportional (modulating). · For stepless flow regulation. · 2-way. · Servo-operated. · DN 6 - DN 20. · Short reaction time. · Linear characteristic throughout the regulation range. · Closes on power failure (fail-safe function). · IP 67 coil enclosure. · 24 V dc supply voltage. Danfoss offers an exceptionally wide range of Solenoid Valves, available in direct-operated, servo-operated and assisted lift versions. An easy, economical way to control and regulate fluids and gases... (read more)Browse Specialty Industrial Process Controllers Datasheets for Danfoss, Inc. - Industrial Automation Division
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Taylor Valve Technology's modulating pilot opens slowly, much like a regulating valve, reaches a control point near 5 to 6 percent overpressure then rapidly opens to full capacity at 10% overpressure. It continues to flow until pressure in the system depletes to a safe level, the valve then closes with a controlled, regulated characteristic and reseats very close to set point. (read more)Browse Pressure Relief Valves Datasheets for Taylor Valve Technology, Inc.
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Rotork Process Controls has launched a new range of compact, robust and reliable electric actuators for control valves, regulators and other continuous modulating applications. The CMA (Compact Modulating Actuator) extends the scope of Rotork's proven technologies and the benefits inherent in the innovative Rotork CVA electric control valve actuator range. The CMA range increases the areas of flow control that can take advantage of these advanced features. The CMA is available in linear... (read more)Browse Electric Valve Actuators Datasheets for Rotork plc
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Axetris IR sources are micro-machined, electrically modulated thermal infrared emitters featuring: true black body radiation characteristics. fast electrical modulation (no chopper wheel needed). low power consumption. high emissivity. a long lifetime. rugged design. The patented design is based on a resistive heating element integrated onto a thin dielectric membrane which is suspended on a micro-machined silicon structure. The source is packaged in compact TO-39 can and has an optical... (read more)Browse Lamps Datasheets for Leister USA
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The Aircraft Wheel & Brake Division designs and manufactures hydraulic valves used to control the flow of hydraulic fluid in a variety of aircraft applications. Their products include: Shuttle valves —used to switch between two hydraulic pressure sources. Meter valves —used on powered braking systems as boosting control valves. Hydraulic fuses —used to prevent leaks from draining the hydraulic reservoir. Park brake valves —used to prevent aircraft from rolling when... (read more)Browse Hydraulic Valves Datasheets for Parker Hannifin / Hydraulics Group
Conduct Research Top
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Electronic Valve Application Guide (.pdf)
and low pressure steam. Modulating control of low pressure steam, Modulating control of high. pressure steam, Choked flow at sonic velocity, Sizing the valve, Superheat. and saturated steam. inted in USA - IG - Subject to technical changes. 15. Summary of valve sizing criteria
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Cutting curves, not corners
by modulating valve-spool position in real time, reading the actual position via a synchronous serial interface (SSI). Therefore, responsive control valves and a powerful motion controller -- both tailored to the application -- are critical. For example, Bosch Rexroth 4WRPEH proportional valves are widely
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Co-Simulation Analysis of Transient Response and Control for Engines with Variable Valvetrains (.pdf)
-closing (EIVC). Matlab/Simulink to model the engine controllers and the. strategy is used to reduce pumping loss by modulating. vehicle. engine airflow with a minimum of throttling, while cam. phasing modulates valve overlap to control dilution. The simulation has been applied to examine fast. Late
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RTO Technical Specifications
/open switches. · Solenoid bleed valve. · Solenoid blocking valve. · Pilot shut-off cock. · Dual pilot safety solenoid shut off valves. · High/low safety gas pressure switches. · Electrically-operated modulating gas control actuator. RTO Technical Specification ~ Page 2 of 6. © 2008 Cycle Therm LLC
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AERCO Helps JFK Library and Museum Join the High Efficiency Age
dedicated pumping equipment, auxiliary heat exchangers and mixing valves to protect the boilers," said Harder. "This simplified construction and will reduce operating and maintenance expenses for years to come.". Variable Load Efficiency: Accurately Matching Supply to Changing Demand. "The modulating
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Sorting out pressure-compensated flow control
at a constant value. The reference restriction is a needle valve set to the desired flow rate. Modulating the upstream pressure of the needle valve regulates flow. If supply pressure to the regulator varies, the reducing valve opens or closes to maintain constant upstream pressure to the needle valve. When
Engineering Web Search: Modulating Hydraulic Valve Top
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Pinch Valves - High Performance
Electric On / OFF Valves | Hydraulic On / Off Valves | Air Actuated On / Off Valves Modulating Valves | Manual Modulating Control Valves | Pneumatic
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Valve Actuators Information on GlobalSpec
Hydraulic Valve Motion: Rotary Motion Valve Modulating More Specifications >> Valve actuators mount on valves and, in response
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Pneumatic Valve Actuators Information on GlobalSpec
Electrohydraulic Valve Actuators and Hydraulic Valve Actuators
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Rotork: Skilmatic Range Actuators
Two position fail safe or modulating control with valve flow characterisation.
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Rotork: IQ & IQT Electric Valve Actuators
IQM Modulating IQML Linear Modulating IQS Single Phase
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Proportional Solenoid Valve-Proportional Solenoid Valve...
solenoid valve, double coil solenoid valve, proportional valve ,coffee machine solenoid valve ,motorized control valve ,high pressure solenoid valve
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Flow Control Valve-Flow Control Valve Manufacturers, Suppliers...
gas flow control valve, hydraulic flow control valve, pressure control valve ,control water flow control valve ,control valve ,water flow restrictor
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HSF - The Shuttle
A switching valve is used to control the hydraulic system that becomes the source of hydraulic pressure for that servoactuator.
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Rotork: Process Control Actuators
Rotork Process Controls manufactures electric actuators for continuous modulating control in the process industries.
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Hydraulic Assist Valve - RR Valve Products - Emsco Triplex...
Automatic Modulating Valve Valve Test Special Tools Hydraulic Assist Valve Instructional Video
