Metso Quadra-Powr II, Инструкция по установке, обслуживанию и эксплуатации

Страница: 3 / 12

1. GENERAL
This instruction manual contains important information
regarding the installation, operation and troubleshooting
of the Jamesbury Quadra-Powr II spring-diaphragm actu-
ators. This unique spring-diaphragm actuator designed
for rotary valves provides safe, smooth and reliable valve
actuation at minimal pressures and up to 100 psi (6.9 BAR).
Please read these instructions carefully and save them for
further reference.
1.1 WARNING:
KEEP HANDS AND CLOTHING AWAY FROM THE VALVE PORTS AT
ALL TIMES.
DO NOT ATTEMPT TO DISASSEMBLE THE SPRING CARTRIDGE.
DISASSEMBLY OF THE SPRING PACKAGE MAY RESULT IN SERIOUS
PERSONAL INJURY. IF MAINTENANCE IS REQUIRED, THE ENTIRE
ACTUATOR MUST BE RETURNED TO JAMESBURY.
SHUT-OFF AND BLEED ALL SUPPLY LINES BEFORE INSTALLATION
OR SERVICING. DO NOT REMOVE DIAPHRAGM CASING HEX HEAD
SCREWS (25 & 27), NUTS (29) OR DIAPHRAGM CASING (15) WHILE
ACTUATOR IS PRESSURIZED.
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 THE CORRECT VALVE POSITION COULD
RESULT IN PERSONAL INJURY.
AN ACTUATOR MUST BE SIZED ACCURATELY FOR PROPER
OPERATION. REFER TO INFORMATION ON 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.
ACTUATORS ARE NOT TO BE LIFTED USING THE 3/8” NPT IN
THE DIAPHRAGM CASING. HANDLING OF THE ACTUATOR IS
ACCOMPLISHED BY USING TWO M10 EYE NUTS SCREWED
ONTO THE TWO HEX HEAD SCREWS (25) ON THE DIAPHRAGM
CASING (15),THAT ARE FACING THE OPPOSITE DIRECTION OF
THE OTHER FASTENERS. FOR THE QP6, USE FOUR M10 EYE-NUTS.
(ACTUATOR WEIGHT: SEE TABLE 1.)
1.2 Handling Quadra-Powr II Actuators
Handling of the actuator is to be accomplished by using
two M10 eye-nuts screwed onto the two hex head screws
(25), which are facing the opposite direction of the other
fasteners. For the QP6 use four M10 eye-nuts.
TABLE 1
Handling Quadra-Powr II Actuators
Actuator Series Approximate Weight Lb. (kg)
QP1 23 (10)
QP2 42 (19)
QP3 72(33)
QP4 117 (53)
QP5 235 (107)
Qp6 520 (235)
2. INSTALLATION
1. Check to see that the position indicator on the
actuator is assembled correctly for the desired failure
mode, either spring-to-close or spring-to-open. In the
springto- close mode, the actuator will cycle clockwise
to close upon loss of pressure. In the spring-to-open
mode, the actuator will cycle counterclockwise to open
upon loss of pressure.
2. If the actuator is not set up in the configuration desired,
remove the four hex head screws (33), indicator plate
(12), indicator pointer (24), and remount them on the
opposite mounting surface. In the female actuators, the
fastener identification plate shows the failure mode of
the actuator.
SPRING-TO-CLOSE
In this mode the actuator will cycle clockwise to close upon loss
of pressure
SPRING-TO-OPEN
In this mode, the actuator will cycle counterclockwise
to open upon loss of pressure
Figure 1
Figure 2
IMO 11/17
IMO-031 EN 3