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Features
Sensitive and accurate flow rate control
Automatically adjust flow rate
Flow limit orifices plate with pressure sensor
Easy adjustment and maintenance
Excellent and reliable sealing performance
Features
Sensitive and accurate flow rate control
Automatically adjust flow rate
Flow limit orifices plate with pressure sensor
Easy adjustment and maintenance
Excellent and reliable sealing performance
Model 41-08 flow rate control valve is used to adjust and maintain the preset max. Flow rate no matter how pressure varied inside the pipe. It can prevent the flow rate over the max flow rate limitation. It is hydraulic pressure control inside the pipe and is a diaphragm valve controlled by pilot, which can sense the pressure difference at the both sides of the downstream flow limit orifices plate and balance the pressure both sides, automatically adjust the open degree to maintain the flow rate at a certain range. The adjustable pole of pilot can slightly adjust flow rate.
If a check feature is added, and a pressure reversal occurs, the downstream pressure is admitted in the main valve cover chamber closing the valve to prevent return flow.
Schematic Diagram
Accessories
| No. | Parts Name |
| 1 |
Strainer |
| 2 |
Close Speed Control |
| 3 |
Check Valve(Optional) |
| 4 |
Ball Valve |
| 5 |
Ball Valve |
| 6 |
Pilot |
| 7 |
Check Valve(Optional) |
| 8 |
Flow limit orifices plate |
|
Valve size |
50 Tr |
50 |
65 |
80 |
100 |
125 |
|
L (mm) |
184 |
205 |
229 |
250 |
320 |
370 |
|
H (mm) |
123 | 155 | 182 | 186 | 242 |
276 |
|
Weight (kg) |
6 |
11 |
13 |
22 |
37 |
46 |
|
Valve size |
150 |
200 |
250 |
300 |
350 |
400 |
|
L (mm) |
415 |
500 |
605 |
725 |
733 |
990 |
|
H (mm) |
308 | 418 | 488 | 572 | 598 |
815 |
|
Weight (kg) |
75 |
125 |
217 |
370 |
380 |
846 |
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~DN400 to flange , DN50 to Thread
Flange：10K、16K、PN16、150LB
Temp. range：0℃~100℃，water
※Any size over DN450 can be made to order.
Material
Body：Ductile Iron / Stainless steel
Accessory：Brass / Stainless steel
Fastener & Spring：Carbon steel / Stainless steel
Diaphragm：NBR / EPDM
Stem：Stainless Steel
Pilot Specification
Adjustable range：1~4 m/s flow speed inside the pipe is the adjustable range.
Material：Brass / Stainless steel
When Ordering, Please Specify
1、Valve model number
2、Valve size
3、Pressure range
4、Connection type
5、Flow rate range
6、Working pressure
Typical Application
Model 41-08 Flow rate control valve is applied for water supply system to limit the max flow rate of branches, and automatically maintain the flow rate of branches at the allowed max flow rate.