609 FF-115 Explosion Proof Electro-Hydraulic Flow Control Servo Valve (12L, 10mA)

FF-115

Double flapper-nozzle force feedback, two stage electro-hydraulic flow control servo valve
Affordable Replacement for Moog G77XK

Features

Intrinsic safety protected industrial servo valve for explosion proof situations.
External null adjustment available for customers to adjust valve null bias
Performance data:

ITEM
MODEL FF-115/12
MODEL FF-115/40
MODEL FF-115/75
MODEL FF-115A/9
MODEL FF-115A/37
MODEL FF-115A/75
RATED SUPPLY PRESSURE Ps[MPa]
21
21
21
21
21
21
RATED FLOW Qn[L/min]
12
40
75
9
37
75
RATED CURRENT In [mA]
10
10
10
30
30
30
COIL RESISTANCE[ Ω ]
1000
1000
1000
400
400
400
HYSTERESIS [ % ]
≤4
≤4
≤4
≤4
≤4
≤4
THRESHOLD [ % ]
≤1
≤1
≤1
≤1
≤1
≤1
LINEARITY[ % ]
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
≤7.5
SYMMETRY[ % ]
≤10
≤10
≤10
≤10
≤10
≤10
PRESSURE GAIN[%Ps/1% In]
>30
>30
>30
>30
>30
>30
INTERNAL LEAKAGE[L/min]
1.3
2.4
4
1
2
4
NULL BIAS[ % ]
-3~+3
-3~+3
-3~+3
-2~+2
-2~+2
-2~+2
NULL SHIFT WITH SUPPLY PRESSURE (80~110% Ps)[ % ]
≤±2
≤±2
≤±2
≤±2
≤±2
≤±2
NULL SHIFT WITH RETURN PRESSURE (2~20% Ps)[ % ]
≤±2
≤±2
≤±2
≤±2
≤±2
≤±2
NULL SHIFT WITH TEMPERATURE (-10~ +60 ºC)[ % ]
≤±2
≤±2
≤±2
≤±2
≤±2
≤±2
AMPLITUDE RATIO WITH (-3dB)[ Hz ]
≥50
≥50
≥50
≥50
≥50
≥50
PHASE LAG WITH (-90°)[ Hz ]
≥50
≥50
≥50
≥50
≥50
≥50