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E-mail
sales@sh-osa.com
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Phone
15618535102
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Address
1700 Shengxin North Road, Jiading District, Shanghai
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Shanghai Wosa Electromagnetic Valve Co., Ltd
OSA82 series piston emergency shut-off solenoid valve (normally open, electrically closed, manually reset open)
NegotiableUpdate on 04/03
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Overview
OSA82 series piston emergency shut-off solenoid valve (normally open, electrically closed, manually reset open)
Product Details
Performance Characteristics
Excellent quality, safe and reliable, instant power on, fast cutting off, flying butterfly piston, anti-corrosion and wear-resistantThree dimensional sealing, strict prevention of leaks, guiding devices, and avoidance of malfunctions.
working principle
Under normal circumstances, there is no need to power on. When the protective cover is unscrewed and the manual lever is pulled into place, it will be stuck by the spring pin, and the main valve will remain open; When the controller sends an instantaneous power signal to the solenoid valve, the spring pin is sucked back, and the valve stem and piston quickly fall down to close.
Function Options
code name |
Function Name |
Functional Description |
E |
Explosion-proof type |
Explosion proof grade: Ex dIICT4/T5 |
DA |
Double acting control |
Two switches control on and off respectively |
Technical Specifications
Nominal Diameter |
DN20-350, DN400-1000 (customized) |
principle structure |
Direct acting, pilot operated |
response speed |
1～3S， The visual pressure difference and caliber size vary |
Control method |
Normally open, instantly turned off when powered on, manually reset and pulled open |
Valve body material |
SS304、 铸钢WCB |
sealing material |
NBR、FKM |
ambient temperature |
-20 ℃~+60 ℃ (explosion-proof type -20 ℃~+40 ℃), -50 ℃~+40 ℃ (specially designed) |
fluid temperature |
C1 group: -10 ℃ to+60 ℃; C3 group: -10 ℃ to+120 ℃ |
Adapt to fluids |
Gas, natural gas, liquefied gas, biogas, fuel oil, etc |
Fluid Viscosity |
≤22mm²/s |
connection method |
Internal thread, flange |
Installation method |
Horizontal installation, with the valve stem facing upwards (do not tilt or invert) |
Protection level |
Ordinary type IP54, explosion-proof type IP65 |
Electrical parameters
Conventional voltage |
220VAC 50/60Hz 24VDC |
定制电压 |
AC50/60Hz：380V、110V、48V、36V、24V； DC：220V、110V、48V、12V |
Voltage tolerance |
±10% |
electrical connection |
Ordinary type: standard junction box; Explosion proof type: M16 × 1.5 internal thread |
Specifications
|
Normally open type Instantly turn off when powered on Manually reset on |
|
|||||||
Model |
Diameter (mm) |
Connection port (") |
Kv value |
Standard working pressure (bar) |
Specially designed working pressure (bar) |
Specially designed working pressure (bar) |
||
B6 |
B16 |
AC220V |
DC24V |
|||||
OSA8220 |
20 |
G3/4 |
5.5 |
0~3 |
1~6 |
3~8 |
12 |
12 |
OSA8225 |
25 |
G1 |
10 |
0~3 |
1~6 |
3~8 |
12 |
12 |
OSA8232 |
32 |
G11/4 |
16 |
0~3 |
1~6 |
3~8 |
25 |
24 |
OSA8240 |
40 |
G11/2 |
20 |
0~3 |
1~6 |
3~8 |
25 |
24 |
OSA8250 |
50 |
G2 |
28 |
0~3 |
1~6 |
3~8 |
25 |
24 |
OSA8265F |
65 |
flanged |
40 |
0~1 |
1~6 |
3~8 |
25 |
24 |
OSA8280F |
80 |
flanged |
65 |
0~1 |
1~6 |
3~8 |
25 |
24 |
OSA82100F |
100 |
flanged |
99 |
0~1 |
1~6 |
3~8 |
25 |
24 |
OSA82150F |
150 |
flanged |
250 |
0~1 |
1~6 |
3~8 |
25 |
24 |
OSA82200F |
200 |
flanged |
420 |
0.3～0.5 |
0.3～0.5 |
1~3 |
60 |
60 |
OSA82250F |
250 |
flanged |
600 |
0.3～0.5 |
0.3～0.5 |
1~3 |
60 |
60 |
Special Reminder:
① This valve has high safety requirements and is difficult to manufacture, so users must provide pressure parameters truthfully, otherwise it will affect sensitivity and reliability;
② When the user selects a special working pressure level or special working conditions, the corresponding power and parameters need to be reconfirmed. Please consult our company.
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