Product Manual

MONO-BLOCK DIRECTIONAL CONTROL VALVEMONO-BLOCK DIRECTIONAL CONTROL VALVE
Pressure Drop
GENERAL SAFETY REGULATIONS
WARNING: Read and understand all instructions. Failure to follow all instructions
listed below may result in serious bodily injury or death, and/or property damage.
WARNING: The warnings, cautions, and instructions discussed in this instruction
manual cannot cover all possible conditions or situations that could occur. It must be
understood by the operator that common sense and caution are factors which cannot be built into
this product, but must be supplied by the operator.
• Keep the work area clean and dry. Damp or wet work areas can result in injury.
• Keep children away from work area. Do not allow children to handle this product.
• Always wear ANSI-approved safety glasses and heavy-duty work gloves during assembly
and use. Do not wear loose clothing or jewelry which can get caught in moving parts.
• Store idle equipment. When not in use, tools and equipment should be stored in a dry location to
inhibit rust. Always lock up tools and equipment, and keep out of reach of children.
• Use the right tool for the job. Do not attempt to force small equipment to do the work of larger
industrial equipment. There are certain applications for which this equipment was designed. It will
do the job better and more safely at the capacity for which it was intended. Do not modify this
equipment, and do not use this equipment for a purpose for which it was not intended.
• Check for damaged parts. Before using this product, carefully check that it will operate properly
and perform its intended function. Check for damaged parts and any other conditions that may
affect the operation of this product. Replace damaged or worn parts immediately.
• Do not overreach. Keep proper footing and balance at all times to prevent tripping, falling, back injury, etc.
• DO NOT use the equipment when tired or under the influence of drugs, alcohol, or medica-
tion. A moment of inattention while operating this equipment may result in serious personal injury.
• Industrial applications must follow OSHA requirements.
GUIDE TO SAFETY OPERATION
WARNING: The warnings, cautions, and instructions discussed in this instruction
manual cannot cover all possible conditions or situations that could occur. It must be
understood by the operator that common sense and caution are factors which cannot be built into
this product, but must be supplied by the operator.
• All hydraulic valve must be properly installed into the hydraulic system to prevent personal
injury and/or property damage. Further, the improper servicing of a valve may result in personal
injury and/or property damage. Please read and understand all catalog and service information
before starting, as with all mechanical work the proper tools, knowledge, and safety equipment are
required, always wear safety glasses.
• Make sure all pressure has been relieved in the hydraulic lines before installing or servicing
a hydraulic valve.
2 of 6 3 of 6
4 way 3 position tandem center
Powers cylinder or motor in both directions
(metering capability is very limited).
Pump unloads to tank when spool is in neutral.
cylinder or motor blocked when spool in neutral
3 position spring center to neutral
Pressure (PSI)
Pressure drop P A(B)
on 6 sections dDIRECTIONAL valve
Pressure drop P T
Pressure drop A(B) T
on 6 sections dDIRECTIONAL valve
Pressure (PSI)
Pressure (PSI)
362.5
290
217.5
145
72.5
0
362.5
290
217.5
145
72.5
0
362.5
290
217.5
145
72.5
0
4 8 12 16
Flow rate (GPM)
4 8 12 16
Flow rate (GPM)
4 8 12 16
Flow rate (GPM)
A1(B1) T
6 sections
5 sections
4 sections
2 sections
3 sections
1 sections
A6(B6)
P
A1(B1)
P
A6(B6) T
• Escaping hydraulic fluid under pressure can have sufficient force to penetrate skin, causing
serious personal injury. Do not use your hand to check for hydraulic leaks.
• Before installing or servicing a hydraulic component, make sure all weight has been removed
from the cylinders or motors before disconnecting hydraulic lines. Disconnecting the
hydraulic lines while the cylinder or motor is under load may result in the unexpected rapid
movement of machine resulting in serious personal injury.
• Do not exceed the operating specifications for pressure, flow or temperature. All hydraulic
systems require a means to limit the maximum pressure. This requires either a pressure relief
valve in the system or a pump that has pressure compensation.
SPOOL TYPE
Conversion plug installed
To be used with open centre spool options.
Allow the valve to be converted to have power
beyond function or be converted from open
to closed center.