Description |
Completely encapsulated mechanism for protection against dirt. Five chamber design for better reduction in dynamic forces and longer valve life. Available as spring centered, spring off-set or detented model. Operating head can be rotated by 90° x 4 around spool axis for flexibility in mounting. Valve mounting interface conforms to ISO 4401-03-02. Five chamber body and spool design provides low-pressure drop, with maximum performance. Balanced spool design ensures proper shifting force for maximum reliability and long life. All spools and bodies are interchangeable, simplifying maintenance. |
Section |
Unit Dimensions |
Sub-plate type body
O'Ring size at port P, A, B & T : 9.25 i.d. x 1.78 c.s.d.
Technical Specifications |
Construction | Spool type. |
Mounting type | Subplate body as per ISO 4401-03-02. |
Mounting position | Optional. |
Operating Pressure |
For Ports P,
A, B ............ 315 bar Port T .................... 150 bar. (For spool type A & B, port T to be used as a drain line, if the operating pressure exceeds 150 bar.) |
Nominal flow handling capacity | 63 lpm. |
Maximum flow handling capacity | Refer graph. |
Flow direction | Refer spool chart. |
Hydraulic medium | Mineral oil. |
Viscosity range | 10 to 380 cSt. |
Working temperature range | -20 ºC to +70 ºC. |
Fluid cleanliness requirement | As pe ISO code 16/13 or better. |
Weight | 0.75 kg. |
Performance Curves
Oil used : ISO VG 68, Test temp. : 50º C
Table showing the relation between the spool type,
direction of
flow and curve in the above graph to be referred to.
Spool Type | Direction of flow / Curve No. | ||||
P to A | P to B | A to T | B to T | P to T | |
A | 4 | 4 | -- | -- | -- |
B | 4 | 4 | -- | -- | -- |
C | 4 | 4 | 5 | 2 | -- |
D | 4 | 4 | 5 | 2 | -- |
E | 3 | 3 | 5 | 5 | -- |
F | 1 | 3 | 1 | 3 | -- |
G | 6 | 6 | 6 | 6 | 7 |
H | 1 | 1 | 2 | 2 | 4 |
J | 3 | 3 | 2 | 2 | -- |
L | 3 | 3 | 2 | 5 | -- |
M | 1 | 1 | 5 | 5 | -- |
P | 3 | 1 | 3 | 1 | -- |
Ordering Informations |
Note : Subplate to be ordered seperately
All rights reserved. Subject to revision. |
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Copyright ©
Polyhydron Pvt. Ltd. Belgaum, India. |
Updated on May 11, 2010 05:17 pm .