Servo Valves Air Valves
Description
Servo valves are precision devices used to control the flow and pressure of air or hydraulic fluid in a system. They are capable of providing precise control over the position, velocity, and force of actuators, making them essential components in systems requiring high accuracy and responsiveness.
Working Principle
Servo valves operate by converting an electrical signal into a mechanical movement that adjusts the position of a spool or other control element within the valve. This movement regulates the flow of fluid through the valve, which in turn controls the actuator's position or speed. The first stage of a servo valve typically involves a hydraulic or pneumatic amplifier, which can be designed as a flapper-nozzle, jet pipe, force motor, or solenoid. These designs amplify the flow to achieve the desired control effect. The usefulness of servo valves lies in their ability to provide precise control over fluid flow, which is critical in applications requiring high levels of accuracy and repeatability.
Applications
Servo valves are commonly used in applications where precise control of fluid flow is necessary. Specific examples include flight simulators and airframe testing, where they help in controlling the motion and forces applied to the system. They are also used in press systems and molding machines, where precise control over actuator position and velocity is crucial for the manufacturing process.
Advantages over other Air Valves
Servo valves offer several advantages over other types of air valves. They provide high precision and responsiveness, which is essential in applications requiring exact control over fluid flow and actuator movement. Unlike conventional valves, servo valves can achieve servo-like performance without the contamination and high pressure drop issues, as seen in some proportional valves. This makes them suitable for high-performance applications where precision and reliability are paramount.
Limitations
One of the limitations of servo valves is their complexity and the need for precise manufacturing, which can make them more expensive than simpler valve designs. Additionally, they may require regular maintenance to ensure optimal performance, as their precision components can be sensitive to contamination and wear.
Considerations
When considering the use of servo valves, it is important to evaluate the initial costs, which can be higher due to the complexity and precision required in their manufacturing. Operating expenses may also be higher, as these valves require regular maintenance to maintain their accuracy and performance. Durability is another factor to consider, as the precision components in servo valves can be susceptible to wear and contamination. Replacement and maintenance costs should be factored into the overall cost of ownership, as these can impact the long-term viability of using servo valves in a given application.
from Exsenco, LLC
SANTEST DA03S model is a unique "High-Speed Servo Valve" for hydraulic and pneumatic applications. It employs "Dual Halbach Magnet array", which reinforces magnetic fields for driving differential voice coils in tandem. The result is high-speed response (1.5 msec from 0 to 100%) and surpassing... [See More]
- Valve Type: Servo; Hydraulic
- Maximum Pressure: 5076.29
from Radwell International
PNEUMATIC SERVO PRESSURE CONTROL VALVE. FREE 2 YEAR RADWELL WARRANTY [See More]
- Valve Type: Servo; Control Valve
- Actuation: Pneumatic
from Radwell International
DISCONTINUED BY MANUFACTURER, SERVO CONTROLLER, 100VAC, 50/60HZ, IP20, 2AXIS, 6.3A. FREE 2 YEAR RADWELL WARRANTY [See More]
- Valve Type: Servo; Control Valve
from Radwell International
DISCONTINUED BY MANUFACTURER, SERVO PRESSURE CONTROL VALVE, DIGITAL I/P CONVERTER. FREE 2 YEAR RADWELL WARRANTY [See More]
- Valve Type: Servo; Control Valve
from Radwell International
PNEUMATIC VALVE, 4/2-WAY, SERVO-PISTON, (4) FLUIDIC PORT CONN, (2) VALVE FUNCTION SWITCHING POSITIONS, 120 VAC, 50/60 HZ, VALVE FUNCTION: G - NORMALLY OPEN, 1/4 IN SUPPLY CONN DIAMETER, 1/4 IN WORKING CONN DIAMETER, INNER THREAD TYPE/NPT. FREE 2 YEAR RADWELL WARRANTY [See More]
- Valve Type: Piston; Servo
- Actuation: Pneumatic
- Connection Description: Threaded
from Enfield Technologies
Enfield Technologies model proportional valves are the newest addition to 5 - Ported, 4 - Way valve product offering. While compact, they remain big on versatility, with a rugged design specifically designed for in - line or custom manifold mounting. The bi - directional linear forc e motor and... [See More]
- Valve Type: Servo; Solenoid; Control Valve; Directional
- Connection Description: Threaded; Cartridge; 10-32 UNF
- Flow (Cv): 0.13
- Actuation: ElectroPneumatic
from Kelly Pneumatics, Inc.
Kelly Pneumatics, Inc. introduces an electronic pressure relief valve for high flow applications. This valve offers high-resolution pressure chamber control for applications that require high volume, relieving flow performance. Well used in applications that need to sustain a consistent chamber... [See More]
- Valve Type: Regulator; Servo; Relief
- Media Temperature: 0 to 150
- Maximum Pressure: 1.00 to 98.00
- Connection Description: Threaded; 1/8" or 1/4" FPT
from HR Textron
0.48" port circle, 0.938" x 1.032" bolt pattern, nitrile o-ring standard [See More]
- Valve Type: Servo
- Connection Description: Cartridge
- Maximum Pressure: 5000.00
- Actuation: ElectroHydraulic; ElectroPneumatic
from Proportion-Air, Inc.
Electro-pneumatic closed loop pressure control valve. Pressure ranges from full vacuum up to 500 psig. Variety of analog and digital command signals. High accuracy of +/- 0.2% F.S. typical with +/-0.02% F.S. repeatability. Analog monitor output is available for data aquisition. Can be assembled to... [See More]
- Valve Type: Servo
- Media Temperature: 32 to 158
- Valve Size: 0.12
- Connection Description: Threaded; 1/8" NPT Female
from Equilibar, LLC.
The GP series control valve is an electronic pressure regulator designed to precisely control the pressure of gaseous media proportional to an electronic signal in pressure ranges up to 1000 PSI. The GP1 operates using two normally closed solenoid valves, a pressure sensor, and a control circuit. [See More]
- Valve Type: Regulator; Servo; Control Valve
- Maximum Pressure: 0.00 to 1000.00
- Valve Size: 0.12
- Connection Description: Threaded; NPT
from Enfield Technologies
Enfield Technologies LS - V05s model proportional valves are the newest addition to 5 - Ported, 4 - Way valve product offering. While compact, they remain big on versatility, with a rugged design specifically designed for in - line or custom manifold mounting. The bi - directional linear forc e... [See More]
- Valve Type: Servo; Control Valve; Directional
- Flow (Cv): 0.13
- Valve Size: 0.16
- Maximum Pressure: 80.00
from Kelly Pneumatics, Inc.
Kelly Pneumatics, Inc. offers a high volume flow Miniature Proportional Valve utilizing our proportional armature valve technology. This non-spool valve architecture employing one moving part ensures virtually frictionless performance and longevity tested at over 100 million cycles. We also offer... [See More]
- Valve Type: Servo; Control Valve
- Maximum Pressure: 25.00 to 100.00
- Valve Size: 0.12
- Media Temperature: 32 to 120
from Equilibar, LLC.
The QB Series uses Proportion-Air ’s patented technology for closed loop control. The QB Series valves can be built in either a single loop or double loop control scheme. The QBT Series is used to control pressure of inert gases from full vacuum up to 300 psig (21 bar). The QBS is used in... [See More]
- Valve Type: Regulator; Servo; Control Valve
- Flow (Cv): 0.04
- Valve Size: 0.12
- Maximum Pressure: 0.00 to 500.00
from Enfield Technologies
Enfield Technologies LS - V15s model proportional valves are the newest addition to 5 - Ported, 4 - Way valve product offering. While compact, they remain big on versatility, with a rugged design specifically designed for in - line or custom manifold mounting. The bi - directional linear force motor... [See More]
- Valve Type: Servo; Control Valve; Directional
- Flow (Cv): 0.35
- Valve Size: 0.12
- Maximum Pressure: 80.00
from Kelly Pneumatics, Inc.
Kelly Pneumatics, Inc. offers a reduced cost, single or dual-valve design, Electronic Precision Pressure Regulator with I/P transducer control circuitry. Designed specifically for high volume flow rates, this regulator precisely controls both positive and negative outlet pressure ranges, even during... [See More]
- Valve Type: Regulator; Servo; Control Valve
- Media Temperature: 0 to 150
- Maximum Pressure: -14.70 to 98.00
- Connection Description: Threaded; 1/4" or 1/8" FPT
from Equilibar, LLC.
Electronic Pressure Regulator (EPR) Series. Control Pressure from vacuum through 1000psi. Precision QPV/MPV models use high resolution proportional solenoid valves. Use stand alone or as a pilot regulator for Equilibar dome loaded back pressure regulators. Many custom options and calibrated ranges... [See More]
- Valve Type: Regulator; Servo; Control Valve
- Maximum Pressure: 0.00 to 150.00
- Valve Size: 0.12
- Connection Description: Threaded; NPT
from Enfield Technologies
Enfield Technologies LS - V25s series continues in the long line of tradition for fast response and high flow, associated with the LS series sub - base mounted valves. The LS - V25s is a ¼ ” ported in - line valve, with a 1 .0 Cv. Customers in the market for a low profile valve , with a... [See More]
- Valve Type: Servo; Control Valve; Directional
- Flow (Cv): 1.00
- Valve Size: 0.25
- Maximum Pressure: 80.00
from Kelly Pneumatics, Inc.
Kelly Pneumatics, Inc. introduces the High Flow Proportional Valve, which offers the highest flow rates of our proportional valve product line. This valve performs excellently at low or high pressures, and offers our lowest hysteresis performance characteristics with exceptional repeatability. [See More]
- Valve Type: Servo; Control Valve
- Maximum Pressure: 25.00 to 100.00
- Valve Size: 0.12 to 0.25
- Media Temperature: 32 to 120
from Equilibar, LLC.
Highly Accurate Pressure Regulation. The Bellofram Type 10 Regulator controls output pressure with an accuracy of 0.1%, and has very low sensitivity to changes in supply pressure and flow. Start-Up Stability. The Type 10 Regulator has been designed to eliminate the need for any readjustment of the... [See More]
- Valve Type: Regulator; Servo; Control Valve
- Maximum Pressure: 0.00 to 120.00
- Valve Size: 0.12 to 0.38
- Connection Description: Threaded; NPT
from Enfield Technologies
The M1D is a proportional pneumatic valve. It is primarily used for directional control of inert gases in servo systems to control position, pressure, force or flow. It is also used in systems requiring very high speed pneumatic switching. The valve includes integrated on board driver electronics. [See More]
- Valve Type: Servo; Control Valve; Directional
- Flow (Cv): 1.10
- Valve Size: 0.38
- Maximum Pressure: 149.39
from Kelly Pneumatics, Inc.
Kelly Pneumatics, Inc. offers the High Speed Proportional Valve, which offers virtually immediate response time of 2 milliseconds (full span). The High Speed Proportional Valve offers the fastest response time of our proportional valve product line, while still utilizing a single armature design... [See More]
- Valve Type: Servo; Control Valve
- Media Temperature: 32 to 120
- Maximum Pressure: 200.00
- Connection Description: Threaded; 1/4" or 1/8" FPT
from Enfield Technologies
The M2D is a proportional pneumatic valve. It is primarily used for directional control of inert gases in servo systems to control position, pressure, force or flow. It is also used in systems requiring very high speed pneumatic switching. The valve includes integrated on board driver electronics. [See More]
- Valve Type: Servo; Control Valve; Directional
- Flow (Cv): 1.10
- Valve Size: 0.38
- Maximum Pressure: 149.39
from Kelly Pneumatics, Inc.
Kelly Pneumatics, Inc. offers a low volume flow Miniature Proportional Valve utilizing our unique proportional valve design. This non-spool valve architecture employs one moving part, ensuring virtually frictionless proportional control and longevity tested at over 100 million cycles. The simplicity... [See More]
- Valve Type: Servo; Control Valve
- Maximum Pressure: 25.00 to 100.00
- Valve Size: 0.19
- Media Temperature: 32 to 120
from Kelly Pneumatics, Inc.
The Precision Pressure Regulator, is a single-turn, high accuracy pressure regulator for air and gases. The regulator incorporates two internal proportional valves, offering significant improvements over other mechanical pressure regulators. The Precision Pressure Regulator ’s unique, dual... [See More]
- Valve Type: Regulator; Servo; Control Valve
- Connection Description: Threaded; 1/8" and 1/4" NPT
- Maximum Pressure: 160.00
- Actuation: Electric