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IMO 10/19

IMO-215 EN

4.6

Fusible Plug (LK-3116)

The fusible plug melts during a fire or excessive

environmental temperature when the temperature reaches

an approximate level of 165°F. This releases the air from the

diaphragm case and rotates the valve to its fail-safe position.
NOTE: If needed, LK-3192 has a higher melting point of 212°F.

Installation
1. Using thread sealant, attach the fusible plug (3) and

pipe nipple (1) into the street tee as shown in Figure 9.

2. Insert this assembly into the plug guard (4) and secure

using the screw (5), lock washer (6), and hex nut (7).

3. Using thread sealant, attach the completed fusible plug

assembly to the 3/8" NPT port on the QPX diaphragm

casing. The tubing from the solenoid or positioner will

attach to the other end of the pipe nipple.

Fusible plug Exploded View

SECTION A-A

Figure 9.

REPAIR KITS/SPARE PARTS

SERVICE KITS

Model

Complete

Diaphragm

QPX1

RKQ-68

RKQ-75

QPX2

RKQ-70

RKQ-76

QPX3

RKQ-71

RKQ-77

QPX4

RKQ-72

RKQ-78

QPX5

RKQ-73

RKQ-79

For further information on spare parts and service or

assistance visit our web-site at www.metso.com/valves.

ITEM

PART NAME

QTY

PIPE NIPPLE

STREET TEE

FUSIBLE PLUG

PLUG GUARD

FIL. HD SCREW

LOCKWASHER

HEX NUT

Содержание QPX1

Страница 1: ...IMO 215 EN 10 2019 QUADRA POWR X Spring Diaphragm Actuators Installation Maintenance and Operating Instructions ...

Страница 2: ...ct to change without notice All trademarks are property of their respective owners TABLE OF CONTENTS 1 GENERAL 3 1 1 Warning 3 1 2 Handling QUADRA POWR X Actuators 3 2 INSTALLATION 3 2 1 Operation 4 3 MAINTENANCE 4 3 1 Disassembly 4 3 2 Assembly 5 3 3 Parts lists and Bill of the Materials 6 4 ACCESSORIES 7 4 1 100 Adjustable Stop AS 7 4 2 Mechanical Lockout LD 7 4 3 1 NPT Air Inlet F 7 4 4 Manual ...

Страница 3: ...P 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 WH...

Страница 4: ...2 8 76 103 C 60 4 1 114 155 D 80 5 5 146 198 QPX4 B 40 2 8 153 207 K40 40 mm Keyed M 1 Square C 60 4 1 229 310 D 80 5 5 294 399 QPX5 B 40 2 8 305 414 K40 40 mm Keyed M 1 Square C 60 4 1 458 621 D 80 5 5 587 796 For Direct Control Application QPX2A only available with QPX1 drive type options Under normal operating conditions the actuator requires only periodic observation to ensure proper adjustmen...

Страница 5: ... Press driver arm bearings 6 into the body 1 and covers 5 This is best done in an arbor press but a vise could be used if care is taken not to damage the bearing Driver arm bearings are to be pressed in until they are flush or 0 015 in 0 38 mm below the body counterbore or the inside cover surface Press clevis bearings 62 into the clevis 7 2 Apply lubricant MOLYKOTE GN grease on the barrel of shou...

Страница 6: ... 2 2 2 2 2 24 Indicator pointer 1 1 1 1 1 26 Washer 16 24 24 32 48 27 Hex head cap screw 8 12 12 16 24 29 Nylon insert lock nut 8 12 12 16 24 30 Spring retainer 1 1 1 1 1 31 y Thrust bearing 2 2 2 2 2 32 Spring housing 1 1 1 1 1 33 Hex head cap screw 4 4 4 4 4 35 Set screw 1 1 1 1 1 37 NTP adapter N A N A 1 1 1 38 Hex head cap screw 4 4 6 10 10 40 Hex Jam Nut 1 1 1 1 1 43 Compression Spring 1 1 1 ...

Страница 7: ... in the cover lines up with the hole in the end of the locking plate 5 Secure the locking device with a padlock A padlock with 1 4 5 16 6 35 7 9mm diameter shackle is recommended Removal and storage see Figure 4 1 Remove the padlock and swing the cover out of the way 2 Loosen do not remove the upper jam nut and then remove the locking stud 3 With the locking stud still inserted through the large h...

Страница 8: ...etails 2 Stop turning the handle once the desired valve position is achieved 3 When the cause of the malfunction is solved turn the handwheel back to the actuator failsafe position The actuator can now control the valve Maintenance 1 All units are shipped fully greased and require only periodic inspection and greasing If needed use grease fitting 14 to add Molykote type grease until the grease cav...

Страница 9: ...e gearbox can then open the valve in case of actuator or supply air failure 9 Mount the gearbox perpendicular to the valve and secure the fasteners 10 Mount the actuator on top of the gearbox Figure 7 Stop screw adjustment 1 Remove the air from the actuator and ensure the valve actuator gear are in the fully closed position 2 With the actuator and gear mounted backout both stop screws on the gear ...

Страница 10: ...re using the screw 5 lock washer 6 and hex nut 7 3 Using thread sealant attach the completed fusible plug assembly to the 3 8 NPT port on the QPX diaphragm casing The tubing from the solenoid or positioner will attach to the other end of the pipe nipple Fusible plug Exploded View A A 5 6 7 SECTION A A 1 2 3 4 Figure 9 5 REPAIR KITS SPARE PARTS SERVICE KITS Model Complete Diaphragm QPX1 RKQ 68 RKQ ...

Страница 11: ...5 15 mm M Male Square No sign standard version AS 100 Adjustable stop MJX Manual Jackscrew Override SO Fail Open F 1 NPT Air Inlet 2 sign 3 5 only C Model C 2 A B K20 20 mm C D 3 A K35 35 mm B C D 4 B K40 40 mm C D 5 B C D 3 sign Spring Option Details A 1 3 bar 20 psi B 2 8 bar 40 psi C 4 1 bar 60 psi standard D 5 5 bar 80 psi ACCESSORIES Field Mountable Accessories QPX Size 1 2 3 4 5 100 Adjustab...

Страница 12: ...0 Iporanga 18087 101 Sorocaba São Paulo Brazil Tel 55 15 2102 9700 Fax 55 15 2102 9748 Asia Pacific 238B Thomson Road 17 01 Novena SquareTower B Singapore 307685 Tel 65 6511 1011 Fax 65 6250 0830 China 11 F China Youth Plaza No 19 North Rd of East 3rd Ring Rd Chaoyang District Beijing 100020 China Tel 86 10 6566 6600 Fax 86 10 6566 2583 Middle East Roundabout 8 Unit AB 07 P O Box 17175 Jebel Ali F...

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Mesto QPX1, Инструкция по установке, обслуживанию и эксплуатации

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