Products Description
The FF-113 series electro-hydraulic servo valve is a two-stage dual nozzle baffle high flow servo valve with force feedback. Under a pressure difference of 7MPa, its flow rate is 95L/min,150L/min and 230L/min. This series of servo valves adopts an aluminum alloy shell, which is lightweight. The product has a mechanical zero adjustment structure on the outside, which facilitates users to adjust according to their actual needs. The product has a large internal oil filter, strong anti pollution ability, and long service life. The product installation surface has an optional fifth oil supply port, which can supply oil separately to the pilot stage. Suitable for non-standard equipment, testing equipment, power industry, etc.
Product Features:
● High flow industrial servo valve
● According to user needs, the fifth oil supply hole can be used separately to supply oil to the nozzle baffle stage
Technical Parameter：
Item | Unit of Measurement | FF-113 Series | |||
FF-113/95 | FF-113/150 | FF-113/230 | |||
Oil supply pressure range | MPa | 2～28 | |||
Rated Supply Pressure Ps | MPa | 21 | |||
bar | 210 | ||||
psi | 3050 | ||||
Rated Flow QN(±10%) △PN=7MPa | L/min | 95 | 150 | 230 | |
(gpm) | 25.01 | 39.6 | 60.8 | ||
Rated Current | mA | 40 | 15 | 40 | |
Coil Resistance | Q | 80±8 | 200±20 | 80±8 | |
Insulation Resistance | MQ | ≥50 | |||
Hysteresis Loop | % | ≤4 | |||
Resolution Ratio | % | ≤1.5 | |||
Linearity | % | ≤±10 | |||
Symmetry | % | ≤±10 | |||
Pressure Gain | % | >30 | |||
Internal Leakage | L/min | ≤7 | ≤7 | ≤10 | |
(gpm) | ≤1.85 | ≤1.85 | ≤2.64 | ||
Null Bias | % | ≤±3 | |||
Overlap | % | ≤±2.5 | |||
Null Shift With Supply Pressure (80%～110%)Ps | % | ≤±2 | |||
Null Shift With Return Pressure (0～20%)Ps | % | ≤±2 | |||
Null Shift With Temperature (-30～+150℃) | % | ≤±4 | |||
Frequency Response | Amplitude bandwidth(-3dB) | Hz | ≥50 | ≥45 | ≥40 |
Phase Bandwidth (-90) | Hz | ≥60 | ≥55 | ≥50 | |
Net Weight | kg | 4 | |||
Applications:
Electro hydraulic servo valve is a key component in electro-hydraulic servo control. It is a hydraulic control valve that receives analog electrical signals and outputs modulated flow and pressure accordingly. Electro hydraulic servo valves have the advantages of fast dynamic response, high control accuracy, and long service life, and have been widely used in electro-hydraulic servo control systems in aviation, aerospace, shipbuilding, metallurgy, chemical and other fields.
