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TIANJIN BAILI ERTONG MACHINERY XZA Series, Руководство по эксплуатации

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1

1. Overview 

XZA series multi-turn type electric valve actuators(hereafter referred to “electric 

actuator” for short) are used to drive and control globe valve, gate valve and 
diaphragm valve whose discs make straight-line motion during valve opening or 
closing.  
    Having combined with reduction mechanism, the series of electric actuators can be 
used to drive and control ball valve, butterfly valve etc, whose discs make ninety 
degree turns during valve opening or closing. 

XZA series can be divided into five different seating number types and they are 

XZA2, XZA3, XZA4, XZA5, and XZA6. Also, XZA series can be divided into basic 
type, basic integral type, explosion-proof type and explosion-proof with integral type. 
Take the case of XZA2

—

basic type: XZA2, integral type: XZA2.IN, explosion-proof 

type: XZA2Ex, explosion-proof with integral type: XZA2Ex. IN.   

This series can be controlled remotely, electrically (operation via control room) or 

can be operated electrically or manually on site. If there are some other special 
requirements on electric actuators, such as automatic regulation and special protection 
etc, we will provide users with relevant instructions to introduce the method of 
application and cautions for special parts of the products.   

XZA series explosion-proof type is produced on the basis of GB3836.1-2010

《

Explosive atmospheres

—

 Part 1: Equipment

—

 General requirements

》

and 

GB3836.2-2010

《

Explosive atmospheres

—

 Part 2: Equipment protection by 

flameproof enclosures

“

d

”

》

. Meanwhile, this series have been tested, experimented 

and finally verified by the national verified explosion-proof organization and get 
Conformity Certificate of Explosion-Proof. 

The explosion-proof grade of XZA explosion-proof type is Ex d II B T4 Gb. The 

sign “Ex” shows that the electric apparatus comply with the Explosion-proof Standard; 
“d” shows that the explosion-proof type is enclosure explosion-proof; II class 
represents that electric apparatus used in explosive gas environment except for gas 
made from coal; II B represents that the gas is ethylene; T4 indicates that the 
permissible surface temperature is 135

℃；

Gb is apparatus protection degree. 

Please refer to this operation manual if user applies XZA series electric actuator, 

including the basic type, integral type, explosion-proof type and explosion-proof 
integral type                 

If users need to know technical parameters of the products, as well as the 

dimensions and pattern of the connection platform, please refer to the relevant product 
catalog of our company. 

2. Applicable operating environment 

2.1 This product is in accordance with GB/T24923-2010 Technical Conditions of 
Basic Type of Electric Actuator, and GB/T24922-2010 Technical Conditions of 
Explosion-proof Type of Electric Actuator 
2.2 Power supply: 380V, 50Hz, 3-phase 4-wire system, sine AC; 380V, 50Hz, 3-phase 
3-wire system, sine AC (For special voltage and frequency, please refer to product’s 

Содержание XZA Series

Страница 1: ... Read this manual carefully before using the products SM 20 OPERATION MANUAL XZA Series Electric Actuators Tianjin Baili Ertong Machinery Co Ltd ...

Страница 2: ...lation 2 5 Electric Wiring 2 6 Debugging 5 7 Electrical setting for the integral type of electric actuator 8 8 How to select priority control mode for valve closing end position 10 9 Operation inspection after setting 10 10 Notes for use 10 11 Outline drawing of XZA explosion proof type 12 ...

Страница 3: ... 1 Equipment General requirements and GB3836 2 2010 Explosive atmospheres Part 2 Equipment protection by flameproof enclosures d Meanwhile this series have been tested experimented and finally verified by the national verified explosion proof organization and get Conformity Certificate of Explosion Proof The explosion proof grade of XZA explosion proof type is Ex d II B T4 Gb The sign Ex shows tha...

Страница 4: ... of XZA series local control mechanism is mechanical buttons on the control box cover for the integral basic type and explosion proof integral type of XZA series the local control mechanism is knob switch on the side of the electric wiring box cover For the controller of the electric valve actuator controller is a controlling part which is separated from valve electric actuator The controller is o...

Страница 5: ...on should be sound with no bareness 5 1 4 The grounding core wire of the cable should be connected to grounding screw or retaining screw for terminal board support inside connection box 5 1 5 Properly pull the cables out and do not leave to much cable inside connection box or control box The cables should be tied up to avoid touching moving parts Fig 1 5 1 6 Push parts of sealing structure into th...

Страница 6: ...s one of which is used for power cable and the other is used for control cable 5 2 8 Put on the wiring box cover and fasten the gland bolt Till now wiring is finished 5 3 Cautions 5 3 1 User must cut off power when open connection box or front case shield of the electric actuator 5 3 2 You are not allowed to open case shield outdoors in a rainy day to prevent electrical parts from moisture 5 3 3 A...

Страница 7: ...ion is the same as the valve If not change and correct the phase sequence of power before performing the following adjustment a Operate the valve manually to a point where there is only one thread distance from the closing position b Rotate the counter rod 90 to let it be unscrewed so as to make the central gear to disengage and one digit gear of counter from the engaging state c Clockwise turn cl...

Страница 8: ...r to check the meshing of central gear with one place gear of counter If the meshing is proper end the adjustment b After valve is closed torque control switch has acted in advance and closing cam of stroke switch has not yet pressed on microswitch In this case stroke switch action lags behind torque switch action If you do not want torque switch to act you can manually operate valve to make it pr...

Страница 9: ...w the setting of position indication mechanism is completed The setting of the above two steps can also be performed together with the setting of stroke control Cautions a Pay attention to the determination of potentiometer rotation direction as wrong rotation direction will damage the part When facing the pointer the rotation direction for opening or closing of potentiometer should be the same as...

Страница 10: ...t and those adjusting type 7 1 8 Switch knob could be locked by ordinary padlock if needed in case of human s mal operation 7 2 Debugging 7 2 1 Please make a reference to the electric schematic diagram in the attachment 7 2 2 Power Malfunction indicator on the local control buttons shows green light after power is on 7 2 3 Please make a reference to 6 Debugging to adjust the stroke control mechani...

Страница 11: ... some thing just happened and influenced actuator change button is turned to stop or when power is off loss of phase motor has over current or over heated 7 2 5 Control and adjustment for remote switch valve Turn the change over button to Remote and then Local Remote button s indicator is green the actuator is remotely controlled There is a dry contact closure dry contact in remote control between...

Страница 12: ... Before manual operation push on the switch hand and rotate handwheel until the switch hand is turned to the right place which means manual electrical switch is finished Rotate the handwheel if manual operation is needed Under the electrical mode the switch hand will automatically turn to the electrical position Note The switch hand is forbidden to turn from manual operation position to electrical...

Страница 13: ...c actuator are only for lifting the actuator Do not lift the actuator with valve via the eyebolts 10 14 After service disassembly of the product both torque control mechanism and stroke control mechanism should be re calibrated and set 10 15 Special lubrication had been added to the electric actuators before delivery If change is needed specialized lubrication is recommended 10 16 Grounding screw ...

Страница 14: ...12 11 Outline drawing of XZA explosion proof type Fig 7 ...

Страница 15: ...13 Fig 8 ...

Страница 16: ...tion function in the above conditions 2 At the end of operation replace the cover When fastening the clamp nuts at wire inlet and outlet make sure that no adverse elements such as severe damp water and dust etc that could weaken protective performance left in the inner space 3 In the course of mounting covers make sure that rubber seal rings are not damaged and fasteners are securely screwed down ...

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