[样本]mts伺服阀样本

MTS伺服阀样本
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Typical Performance Characteristics
 Full Flow 90° point at
Model Rating* 10% command Null Flow†
 L/min gpm L/min gpm
252.21C 4.0 1.0 240 Hz 1.10 0.29
252.22C 9.5 2.5 240 Hz 1.44 0.38
252.23C 19.0 5.0 240 Hz 2.27 0.60
252.24C 38.0 10.0 200 Hz 2.27 0.60
252.25C 57.0 15.0 150 Hz 2.27 0.60
252.31A‡ 93.0 25.0 80 Hz 5.56 1.47
252.32A‡ 151.0 40.0 60 Hz 5.56 1.47
252.33A‡ 227.0 60.0 50 Hz 8.33 2.20
252.41A 4.0 1.0 300 Hz 1.10 0.29
252.42A 9.5 2.5 280 Hz 1.44 0.38
252.43A 19.0 5.0 280 Hz 2.27 0.60

Static Servovalve Performance
 Nominal Null Null Null Flow-Pressure
Model* Rated Flow Flow Gain Pressure Gain Coefficient Null Flow
 L/min gpm L/min/% stroke gpm/% stroke (% supply/ % stroke) cm5/kgf/sec in.3/sec/psi L/min gpm
256.04 151 40 4.2 1.1 100 0.28 1.2 x 10-3 7.0 2.0
256.09 340 90 6.0 1.6 150 0.56 2.4 x 10-3 13.0 3.5
256.18 680 180 10.6 2.8 200 0.73 3.1 x 10-3 21.0 5.5
256.25 950 250 16.0 4.2 160 1.38 5.9 x 10-3 23.0 6.0
256.40 1500 400 29.0 7.7 250 1.61 6.9 x 10-3 28.0 7.5
Dynamic Servovalve Performance
 90° Phase Spool Stroke Rise Time (tr) 3
Model* Rated Flow1 Pilot Flow Full Flow Frequency 2, 3 Signal 3, 4 (milliseconds)
 L/min gpm L/min gpm (Hz) (Hz) 90% open 10% open
256.04X-01 151 40 3.8 1 100 130 3 2.5
256.09X-01 340 90 3.8 1 30 90(A) 165(B) 9 3.5
256.09X-02 340 90 9.5 2.5 60 85(A) 165(B) 4.6 2.5
256.09X-05 340 90 19 5 100 265(B) 3.5 3.5
256.18X-01 680 180 3.8 1 20 120 7.6 3
256.18X-02 680 180 9.5 2.5 47 130 5 2.5
256.18X-03 680 180 19 5 65 110 4.5 2
256.25X-01 950 250 3.8 1 10 90 15 10
256.25X-02 950 250 9.5 2.5 18 125 <10 <10
256.25X-05 950 250 19 5 25 125 8 4
256.40X-01 1500 400 3.8 1 45 405 655 205
256.40X-02 1500 400 9.5 2.5 95 755 265 85
256.40X-05 1500 400 19 5 125 110 13 4
256.40X-10 1500 400 38 10 155 110 10 3.5

Static Servovalve Performance
Model Parameter*
 Main Stage Null Flow-Pressure Main Stage Null
 Rated Flow Nominal Null Flow Gain Null Flow Drain Leakage† Coefficient Pressure Gain
 L/min gpm L/min/% stroke gpm/% stroke L/min gpm L/min gpm cm5/kgf/sec in.3/sec/psi % supply/% stroke
257.03A-01 113 30 1.9 0.5 7 2.0 0.083 0.022 0.33 1.4 x 10-3 80
257.05A-01 190 50 1.9 0.5 13 3.5 0.151 0.040 0.56 2.4 x 10-3 45
257.09A-01 340 90 6.0 1.6 13 3.5 0.151 0.040 0.56 2.4 x 10-3 150
257.18A-01 680 180 10.6 2.8 21 5.5 0.333 0.088 0.73 3.1 x 10-3 200
257.25A-01 950 250 16.0 4.2 23 6.0 0.340 0.090 1.38 5.9 x 10-3 160
257.40A-01 1514 400 29.0 7.7 28 7.5 0.352 0.093 1.61 6.9 x 10-3 250
* All values listed are typical of Series 257 Servovalves operated at the recommended hydraulic fluid filtration levels.
† Pilot stage drain leakage is 0.045 L/min (0.012 gpm).
Dynamic Servovalve Performance
Model Parameter
 Rated Flow* Pilot Flow† Full Flow Frequency (Hz) 90° Phase Signal** Spool Stroke Rise Time
 L/min gpm L/min gpm 90% open 10% open
257.03A-01 113 30 4.73 1.25 230 250 1.7 1.5
257.05A-01 190 50 4.73 1.25 100 210 3.2 1.8
257.09A-01 340 90 4.73 1.25 60 200 4.0 2.0
257.18A-01 680 180 4.73 1.25 32 180 5.0 2.0
257.25A-01 950 250 4.73 1.25 17 130 16.1 3.0
257.40A-01 1514 400 4.73 1.25 8 100 26 4.6
* With 7 MPa (1000 psi) pressure drop across the servovalve.
† With 21 MPa (3000 psi) pressure drop across the servovalve.
** At ±10% spool stroke.

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