Metso Jamesbury Valv-Powr Value-Line D VPVL Series Installation Maintenance And Operating Instructions Download Page 3

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IMO 11/19

IMO-553 EN

GENERAL

This instruction manual contains important information

regarding the installation, operation, and troubleshooting

of the Jamesbury®

Valv-Powr

VPVL Mod D

Value-Line

Double-Opposed Piston Actuators. Please read these

instructions carefully and save them for further reference.

As the use of the

Quadra-Powr

X is application specific,

many factors should be considered when selecting an

actuator for a given application. Therefore, some of the

situations in which the actuators are used are outside the

scope of this manual. If you have any questions concerning

the use, application or compatibility of the actuator with

the intended service, contact Metso for more information.

Please read these instructions carefully and save them for

further reference.

1.1

WARNING:

LOSS OF AIR PRESSURE MAY CAUSE SPRING-RETURN ACTUATORS

TO MOVE TO THEIR ‘FAILURE’ POSITION. APPLYING AIR PRESSURE OR

CONTROL SIGNAL TO VALVE/ACTUATOR ASSEMBLY MAY CAUSE THE

ASSEMBLY TO OPERATE.
BEWARE OF MOVEMENT OF THE VALVE AND ANY LINKAGE

BETWEEN IT AND THE ACTUATOR. KEEP HAND, BODY PARTS, TOOLS

AND OTHER OBJECTS OUT OF THE WAY OF MOVING PARTS. FAILURE

TO DO THIS MAY RESULT IN DAMAGE OR PERSONAL INJURY!
ALWAYS KEEP HANDS AND CLOTHING AWAY FROM THE VALVE

PORTS. A CLOSING VALVE ACTS AS A CUTTING DEVICE.
DO NOT TRY TO MANUALLY OPERATE A PRESSURIZED ACTUATOR.
DISASSEMBLING A PRESSURIZED ACTUATOR WILL LEAD TO

UNCONTROLLED RELEASE OF PRESSURE. SHUT OFF SUPPLY

PRESSURE AND RELEASE THE PRESSURE FROM THE ACTUATOR

BEFORE DISASSEMBLY. FAILURE TO FOLLOW THESE INSTRUCTIONS

MAY RESULT IN DAMAGE OR PERSONAL INJURY!
DISASSEMBLY OF A SPRING-RETURN ACTUATOR MAY BE DANGEROUS.
NEVER ATTEMPT TO DISASSEMBLE THE SPRING CARTRIDGE

ASSEMBLY OF A SPRING-RETURN ACTUATOR. DISASSEMBLY OF THE

SPRING CARTRIDGE ASSEMBLY MAY RESULT IN SERIOUS PERSONAL

INJURY! IF MAINTENANCE IS REQUIRED THE ENTIRE SPRING-RETURN

ACTUATOR SHOULD BE DIRECTED TO A METSO SERVICE CENTER.
SHUT OFF AND BLEED ALL SUPPLY LINES BEFORE INSTALLATION

OR SERVICING THE ACTUATOR. BEFORE INSTALLING THE VALVE

AND ACTUATOR, BE SURE THAT THE INDICATOR POINTER ON TOP

OF THE ACTUATOR (AND THE IDENTIFICATION PLATE IN FEMALE

ACTUATORS) ARE CORRECTLY INDICATING THE VALVE POSITION.

FAILURE TO ASSEMBLE THESE PRODUCTS TO INDICATE CORRECT

VALVE POSITION COULD RESULT IN DAMAGE OR PERSONAL INJURY!
THE ACTUATOR MUST BE SIZED ACCURATELY FOR PROPER

OPERATION. REFER TO INFORMATION ON THE ACTUATOR END OF

STROKE TORQUES AND THE APPROPRIATE VALVE BULLETIN FOR

OPERATING TORQUES.
WHEN SERVICING A VALVE ACTUATOR ASSEMBLY, THE BEST

PRACTICE IS TO REMOVE THE ENTIRE ASSEMBLY FROM SERVICE.

IF THE ACTUATOR IS REMOVED FROM THE VALVE, IT SHOULD

BE REMOUNTED ON THAT SAME VALVE AFTER SERVICING IS

COMPLETED. THE ACTUATOR MUST BE READJUSTED FOR PROPER

“OPEN” AND “CLOSE” POSITION EACH TIME IT IS REMOUNTED.
DO NOT USE VDI/VDE MOUNTING HOLES TO LIFT AN ACTUATOR.
OPERATING AN ACTUATOR ABOVE ITS TEMPERATURE LIMITS MAY

DAMAGE INTERNAL AND EXTERNAL COMPONENTS AND MAY

RESULT IN PERSONAL INJURY!
OPERATING OVER THE PUBLISHED PRESSURE LIMITS OF THE

ACTUATOR MAY RESULT IN DAMAGE OR FAILURE OF THE ACTUATOR

HOUSING, AND MAY RESULT IN PERSONAL INJURY!

1.2

Handling VPVL Actuators

When handling the actuator or valve/actuator assembly,

take its weight into account! Approximate actuator weights

are shown in the technical bulletin. Never lift the actuator

or valve/actuator assembly by the actuator positioner, limit

switch, their piping, or an NPT air connection. Handling of

the actuator should be accomplished using lifting straps.