Menu
選擇語言
- CN
- EN
- ZH
Features
Sensitive, accurate pressure control
Reliable and excellent sealing
Quickly open valve, ensure pipe pressure
Slow shut off design and impact prevention
Completely automatic operation
Features
Sensitive, accurate pressure control
Reliable and excellent sealing
Quickly open valve, ensure pipe pressure
Slow shut off design and impact prevention
Completely automatic operation
Model 47-03 pressure relief, sustaining, back pressure valve can maintain upstream pipe pressure. It is applied for pressure relief, sustaining, back impact problems. during operation, through pilot to sense the valve inlet pressure and control the open/close of the valve. when the input pressure is over the preset value, valve will quickly open and maintain the pressure in the pipe. After pressure relief, the valve will close slowly to prevent impact happening.
Schematic Diagram
Accessories
| No | Parts Name |
| 1 |
Strainer |
| 2 |
Needle valve / Ball valve |
| 3 |
Ball valve |
| 4 |
Ball valve |
| 5 |
Pilot of pressure relief, sustaining, back |
| 6 |
Ball valve |
| 7 |
Basic valve body |
|
Valve size |
50 |
65 |
80 |
100 |
125 |
|
L (mm) |
200 |
220 |
285 |
307 |
370 |
|
H (mm) |
87 | 109 | 115 | 137 |
142 |
|
Weight (kg) |
7 |
9 |
16 |
18 |
37 |
|
Valve size |
150 |
200 |
250 |
300 |
|
|
L (mm) |
390 |
500 |
605 |
650 |
|
|
H (mm) |
164 | 183 | 244 | 258 | |
|
Weight (kg) |
48 |
83 |
120 |
140 |
Notice：
※When installing the valve, strongly request to leave enough space for maintenance. It is necessary to install the filter at the front section of the valve to avoid foreign materials to block the valve and affect the operation of the valve.
※King-Tech reserves the right to make any revisions on the valve model and size without prior notification.
※When making any design drawing, installation drawing or construction drawing, please do get our approved CAD with our signature, or we will not be responsible for any mistake.
Size：DN50~DN300 to flange
Flange：10K、16K、PN16、150LB
Temp. range：0℃~100℃，water
※Any size over DN350 can be made to order.
Material
Body：Iron casting / Stainless steel
Accessory：Brass / Stainless steel
Fastener：Carbon steel / Stainless steel
Diaphragm：NBR / EPDM
Pilot Specification
Pressure adjustment range：1~4 bar、3~9 bar、7~16 bar
Temp. range：0℃~100℃，water
Material：Brass / Stainless steel
When Ordering, Please Specify
1、Valve model number
2、Valve size
3、Pressure range
4、Connection type
5、Other optional parts
6、Working pressure
Typical Application
●Pressure Relief Valve
To prevent high pressure impact happened at the time pump shut down, the quick open and slow close model 47-03 valve can release the unexpected high pressure to protect system piping and avoid water hammer problem.
