Size | 10 | 16 | 25 | 32 |
Max.operating pressure | Type WEH | MPa | 28 | 28 | 28 | 28 |
Port P,A,B | Type H-4WEH | MPa | 35 | 35 | 35 | 35 |
Port T | With external pilot oil drain | MPa | 31.5 | 25 | 25 | 25 |
With internal pilot oil drain | MPa | 16/21 DC 10/16 AC |
Port Y | DC | MPa | 16/21 |
With external pilot oil drain | AC | MPa | 10/16 |
Type 4WH | MPa | 25 |
Max.control pressure | MPa | 25 |
Min.control pressure With external pilot oil supply With internal pilot oil supply Not apply to C/F/G/H/P/T/V/Z/S | Spring-return 3-position valve | MPa | 1.0 | 1.4 | 1.3 | 0.85 |
Hydraulic-return 3-position valve | MPa | - | 1.4 | 1.8 | 0.85 |
Spring-return 2-position valve | MPa | 1.0 | 1.4 | 1.3 | 1.0 |
Hydraulic-return 2-position valve | MPa | 0.7 | 1.4 | 0.8 | 0.5 |
Fluid | Mineral oil suitable for NBR and FKM seal |
Phosphate ester for FKM seal |
Fluid temperature range | ºC | -30 to +80 (NBR seal) |
-20 to +80(FKM seal) |
Viscosity range | mm²/s | 2.8-500 |
Degree of contamination | Maximum permissible degree of fluid contamination: Class 9 NAS1638 |
Switching pilot oill volume |
Spring-return 3=position valve | CM³ | 2.04 | 5.72 | 7.64 | 29.4 |
2-position valve | CM³ | 4.08 | 11.45 | 15.28 | 58.8 |
Hydraulic-return 3-position valve | | - | WH | WEH | WH | WEH | WH | WEH |
From "0" position to working position "a" | CM³ | - | 2.83 | 2.83 | 7.15 | 7.15 | 14.4 | 14.4 |
From working position "a" to "0" position | CM³ | | 2.72 | 2.9 | 14.18 | 7.0 | 29.4 | 15.1 |
From "0" position to working position "b" | CM³ | - | 5.72 | 5.73 | 14.18 | 14.15 | 29.4 | 29.4 |
From working position "a" to "0" position | CM³ | - | 8.55 | 2.83 | 19.88 | 5.73 | 43.8 | 14.4 |
Flow of shortest switching time | L/min | 35 | 35 | 35 | 45 |
Weight | Single solenoid valve | kg | 6.4 | 8.5 | 17.6 | 40.5 |
Double solenoid,spring-return | kg | 6.8 | 8.9 | 18 | 41 |
Double solenoid, hydraulic-reurn | kg | 6.8 | 8.9 | 19 | 41 |
Hydraulic control valve | kg | 5.5 | 7.3 | 16.5 | 39.5 |
Switching time regulator | kg | 0.8 |
educing valve | kg | 0.4 |
Installation position | C,D,K,Z,Y type hydaulic-return valves are installed horizontally, the rest can be installed arbitrarily |