6-9-p0027-0080-vx21_en.pdf - 第52页

Disassembly/Assembly Procedures Caution Piping Warning Caution 1. During use, deterioration of the tube or damage to the fittings could cause tubes to come loose from their fittings and thrash about. To prevent uncontrol…

VX21

VX22

VX23

0.5

0.7

Proper Tightening Torque

(N·m)

Metal body (

Aluminum

C37

Stainless steel

)

Resin body

Mounting screw

Coil assembly

O-ring A

O-ring B

Adapter

Push rod assembly

Spring

O-ring C

Mounting screw

Coil assembly

Seal

Return spring

Armature assembly

Body

Bracket

No gaps

Mounting Disassembly/Assembly Procedures

Warning Caution

Secure with brackets, except in the case of steel piping

and copper fittings.

Avoid sources of vibration, or adjust the arm from the body

to the minimum length so that resonance will not occur.

7. Painting and coating

Warnings or specifications printed or labeled on the product

should not be erased, removed or covered up.

Caution

1. Before starting the disassembly work, be sure to

shut off the power supply and pressure supply, and

then release the residual pressure.

<N.C.>

1) Loosen the mounting screws.

The coil assembly, seal, return spring, armature assembly and

body can be removed.

<N.O.>

1) Loosen the mounting screws.

The coil assembly, push rod assembly, O-rings, adapter and

body can be removed.

Disassembly

1) Mount the components on the body in the reverse order of

disassembly.

2) When changing the electrical entry direction, turn the coil

assembly in a desired direction to mount it.

Push the coil assembly against the body and tighten the screws

two or more rounds diagonally (Fig. 2) in the status that there

are no gaps between the coil assembly and body (Fig. 1).

Tighten the screws in the order of “12341234”.

∗ After tightening the screws, make sure that there are no gaps between the

coil and body (Fig. 1).

∗ After the disassembly and assembly have been completed, make sure

that no leak occurs from the seal. Additionally, when restarting the valve,

make sure that the valve operates correctly after checking the safety.

Assembly

Fig.2Fig.1

<N.C.> <N.O.>

Disassembly/Assembly Procedures

VX21/22/23 Series

Specific Product Precautions 3

Be sure to read this before handling the products.

Refer to back page 50 for Safety Instructions and pages 17 to 19 for 2 Port Solenoid

Valve for Fluid Control Precautions.

VX2

VXK

VXD

VXZ

VXS

VXB

VXE

VXP

VXR

VXH

VXF

VX3

VXA

VX2

Disassembly/Assembly Procedures

Caution

Piping

Warning

Caution

1. During use, deterioration of the tube or damage to

the fittings could cause tubes to come loose from

their fittings and thrash about.

To prevent uncontrolled tube movement, install protective

covers or fasten tubes securely in place.

2. For piping the tube, fix the product securely using the

mounting holes so that the product is not in the air.

1. Preparation before piping

Before piping is connected, it should be thoroughly blown out

with air (flushing) or washed to remove chips, cutting oil and

other debris from inside the pipe. Avoid pulling, compressing, or

bending the valve body when piping.

2. Avoid connecting ground lines to piping, as this may

cause electric corrosion of the system.

3. Always tighten threads with the proper tightening

torque.

When using steel piping, tighten with the proper tightening

torque shown below.

Lower tightening torque will lead into fluid leakage.

4. Connection of piping to products

When connecting piping to a product, avoid mistakes regarding

the supply port etc.

5. Winding of sealant tape

When connecting pipes, fittings,

etc., be sure that chips from the

pipe threads and sealing material

do not enter the valve.

Furthermore, when sealant tape is

used, leave 1.5 to 2 thread ridges

exposed at the end of the threads.

6. In applications such as vacuum and non-leak speci-

fications, use caution specifically against the

contamination of foreign objects or airtightness of

the fittings.

Tightening Torque for Piping

Thread size

Rc1/8

Rc1/4

Rc3/8

Rc1/2

7 to 9

12 to 14

22 to 24

28 to 30

Proper tightening torque (N·m)

Individual SUP

for medium vacuum

Common SUP

for air

Manifold Exploded View

IN port (Common SUP)

OUT port (Individual SUP)

IN port

Gasket

IN port

Solenoid valve for manifold

Gasket

Mounting screw

OUT port (Common SUP)

IN port (Individual SUP)

Individual port sideIndividual port side

∗ Mounting orientation exists when mounting valves onto manifold base.

Mount it as shown above.

∗ Take great care when special electrical entry direction (XC) is used.

Individual port

Solenoid valve

interface for

manifold

Manifold base

VX21/22/23 Series

Specific Product Precautions 4

Be sure to read this before handling the products.

Refer to back page 50 for Safety Instructions and pages 17 to 19 for 2 Port Solenoid

Valve for Fluid Control Precautions.

Winding

direction

Sealant tape

Expose approx.

2 threads

Wiring

Caution

1. As a rule, use electrical wire with a cross sectional

area of 0.5 to 1.25 mm

for wiring.

Furthermore, do not allow excessive force to be ap-

plied to the lines.

2. Use electrical circuits which do not generate chatter-

ing in their contacts.

3. Use voltage which is within ±10% of the rated volt-

age. In cases with a DC power supply where impor-

tance is placed on responsiveness, stay within ±5%

of the rated value. The voltage drop is the value in

the lead wire section connecting the coil.

4. When a surge from the solenoid affects the electrical

circuitry, install a surge voltage suppressor etc., in

parallel with the solenoid. Or, adopt an option that

comes with the surge voltage protection circuit.

(However, a surge voltage occurs even if the surge

voltage protection circuit is used.)

Warning

1. The solenoid valve is an electrical product. For safety,

install an appropriate fuse and circuit breaker before

use.

When using multiple solenoid valves, it is not sufficient to

merely install one fuse on the inlet side. In order to ensure the

safety of the devices, select and install a fuse for each circuit.

2. Do not apply AC voltage to Class “H” coil AC type

unless it is built in full-wave rectifier, or the coil will

be damaged.

Recommended

Unacceptable

Fig. 2 Binding tubes with bands

Straight

portion

Mounting

pitch

Fig. 1 Recommended piping configuration

Recommended Piping Conditions

1. When connecting tubes using One-touch fittings,

provide some spare tube length shown in Fig. 1, rec-

ommended piping configuration.

Also, do not apply external force to the fittings when binding

tubes with bands etc. (see Fig. 2.)

Tube

size

Mounting pitch

Unit: mm

Nylon tubing

Soft nylon tubing

Polyurethane tubing

44 or more

84 or more

89 or more

112 or more

140 or more

168 or more

29 or more

39 or more

56 or more

58 or more

70 or more

82 or more

25 or more

39 or more

57 or more

52 or more

69 or more

88 or more

Straight

portion length

ø1/8"

ø6

ø1/4"

ø8

ø10

ø12

16 or more

30 or more

32 or more

40 or more

50 or more

60 or more

VX21/22/23 Series

Specific Product Precautions 5

Be sure to read this before handling the products.

Refer to back page 50 for Safety Instructions and pages 17 to 19 for 2 Port Solenoid

Valve for Fluid Control Precautions.

VX2

VXK

VXD

VXZ

VXS

VXB

VXE

VXP

VXR

VXH

VXF

VX3

VXA

VX2