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VXD21 の電気的特性と機能

VXD21のメーカーはSMCです、この部品の機能は「Direct Operated 3 Port Solenoid Valve」です。


製品の詳細 ( Datasheet PDF )

部品番号 VXD21
部品説明 Direct Operated 3 Port Solenoid Valve
メーカ SMC
ロゴ SMC ロゴ 




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VXD21 Datasheet, VXD21 PDF,ピン配置, 機能
CAT.EUS70-26 A -UK
Direct Operated
3 Port Solenoid Valve
For Water, Oil, Steam, Air
Reduction of
power consumption
(DC specification)
6 W 4.5 W
78 W W
11.5 W 10.5 W
3New
VX Series VX31/32/33

1 Page





VXD21 pdf, ピン配列
VXapplications New
Series variations
Direct Operated 2 Port
VX21/22/23
For Air, Vacuum, Water, Steam, Oil
Pilot Operated 2 Port
VXD21/22/23
For Air, Water, Oil
Pilot Operated 2 Port for
Zero Differential Pressure
VXZ22/23
For Air, Vacuum, Water, Oil
Valve type Port size
N.C./N.O. 1/8 to 1/2
Orifice size
mmø
2 to 10
Pilot Operated 2 Port
VXP21/22/23
For Steam (Air, Water, Oil)
Valve type Port size
Orifice size
mmø
N.C./N.O.
1/4 to 1
32 A to 50 A
10 to 50
Water Hammer Relief,
Pilot Operated 2 Port
VXR21/22/23
For Water, Oil
Valve type Port size
Orifice size
mmø
N.C./N.O. 1/4 to 1
10 to 25
Pilot Operated 2 Port for
High Pressure
VXH22
For Air, Water, Oil
Valve type Port size
Orifice size
mmø
N.C./N.O.
1/4 to 2
32 A to 50 A
10 to 50
2 Port for Dust Collector
(Solenoid type, Air Operated type)
VXF21/22, VXFA21/22
For Air
Valve type Port size
N.C./N.O. 1/2 to 2
Orifice size
mmø
20 to 50
Air Operated 2/3 Port
VXA21/22, VXA31/32
For Air, Vacuum, Water, Oil
Valve type Port size
N.C.
3/4 to 11/2
Orifice size
mmø
20 to 40
Model
Valve
type
Port
size
Orifice size
mmø
VXA21/22 N.C./N.O. 1/8 to 1/2 3 to 10
VXA31/32 COM. 1/8 to 3/8 1.5 to 4
Valve type Port size
N.C.
1/4 to 1/2
Orifice size
mmø
10
The VX series has
been renewed as
the new VX series,
with a new cons-
truction
Features 2


3Pages


VXD21 電子部品, 半導体
Solenoid Valves Flow Characteristics
(How to indicate flow characteristics)
2.2 Effective area S
(1) Standards conforming to
JIS B 8390: 2000: Pneumatic fluid power—Components using compressible fluids—
Determination of flow rate characteristics
Equipment standards: JIS B 8373: 2 port solenoid valve for pneumatics
JIS B 8374: 3 port solenoid valve for pneumatics
JIS B 8375: 4 port, 5 port solenoid valve for pneumatics
JIS B 8379: Silencer for pneumatics
JIS B 8381: Fittings of flexible joint for pneumatics
(2) Definition of flow characteristics
Effective area S: The flow ability of a component, represented by its equivalent "ideal" cross sectional area. This effective area is
calculated under sonic conditions by measuring pressure loss in an air tank. Like sonic conductance C, the
effective area is a method of expressing the flow rate of a product.
(3) Formula of flow rate
When
PP21—++—00..—11 0.5, choked flow
Q = 120 x S (P1 + 0.1) —272—39—3+ t—··································································(3)
When
PP21—++—00..—11 > 0.5, subsonic flow
Q = 240 x S (P2 + 0.1) (P1 P2)
—27—239—3+—t ··············································(4)
Conversion with sonic conductance C:
S = 5.0 x C ·······································································································(5)
Q l:Air flow rate[dm3/min(ANR)], the SI unit dm3 (cubic decimetre) is also allowed to be described by (litre)
S : Effective area [mm2]
P1 : Upstream pressure [MPa]
P2 : Downstream pressure [MPa]
t : Temperature [°C]
Note) Formula for subsonic flow (4) is only applicable when the critical pressure ratio b is unknown. It is the same as the formula
for sonic conductance C (2) only when b=0.5
(4) Test method
Pipe the text equipment to the text circuit shown in Fig. (2). Fill the air tank with compressed air and keep the pressure at a
constant level above 0.6MPa (0.5MPa). Then discharge the air until the pressure in the tank drops to 0.25MPa (0.2MPa).
Measure the time required to dischargue the air and the residual pressure in the air tank after leaving it until the pressure
becomes stable in order to calculate the effective sectional area S by the following formula. Select the capacity of the air tank
according to the effective sectional area of the text equipment. In the case of JIS B 8373, 8374, 8375, 8379, 8381, the pressure
values are in parentheses and the coefficient of formula is 12.9.
S = 12.1 —Vt log10 (—P—Ps —++ 00..11—) —2T93 ·················(6)
S : Effective area [mm2]
V : Air tank capacity [dm3]
t : Discharging time [s]
Ps : Pressure inside air tank
before discharging [MPa]
P : Residual pressure inside air tank
Thermometer
Pressure control
equipment
Pressure switch
Control
circuit
Power
supply
Solenoid
valve
Equipment for test
after discharging [MPa]
T : Temperature inside air tank
before discharging [K]
Air supply Filter
Shut off
valve
Pressure gauge
or
pressure convertor
Timer (Clock)
Pressure recorder
Fig. (2) Test circuit based on JIS B 8390
Front matter 3

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
VXD21

Direct Operated 3 Port Solenoid Valve

SMC
SMC
VXD22

Direct Operated 3 Port Solenoid Valve

SMC
SMC
VXD23

Direct Operated 3 Port Solenoid Valve

SMC
SMC


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