Menu
選擇語言
- CN
- EN
- ZH
Features
Features
Water Control Valve-Basic Valve is controlled by the liquid pressure. It is a diaphragm control valve and mainly composed by two parts: Air-Chamber Set and Y-Shape Valve body. The Air-Chamber Set can be dismantled direct from the valve body during maintenance without dismantling the whole valve from the pipeline.
Y-Shape body design makes the valve have excellent hydromechanics. 25% Half-Direct Connection Design to reduce pressure loss. Besides, Fluid passes through the lower part of the valve cover, so the resistance of the fluid is less. Comparing with the same size of other control valves, Cv Value is larger.
41-00 Basic Valve is the foundation of all water control valves. It can join with different controllers to adapt different appliance situations, for example, Float Valve, Pressure Reducing Valve, Pressure Relief Valve, Pressure Sustaining Valve, Back Pressure Valve, Non-Slam Check Valve, Solenoid Control Valve, Rate of Flow Control Valve, Differential Pressure Relief Valve, etc. There are various kinds of valve sizes and connections for choice. The application situations are unlimited.
| NO | Title | Description |
| 1 |
Easy of Maintenance
|
Single Air-Chamber Set can be dismantled from the valve. No need to dismantle the whole valve.
|
| 2 |
25% Direct Flow
|
Y-Shape body design makes the valve have excellent hydromechanics.
|
| 3 |
Antirust Painting
|
It makes the valve body a better antirust function, and extends the valve life.
|
| 4 |
Excellent Control Performance
|
Diaphragm control makes the valve an excellent control performance. It can make the valve operation smooth, eliminate the shock, and avoid the damage caused by water hammer problems.
|
| 5 |
V-Port Plug
|
The optional V-Port Plug is more suitable for the small rate of flow, the environment of high pressure difference. It can effectively reduce the vibration and noise.
|
| 6 |
Cv Value
|
Fluid passes through the lower part of the valve cover, so the resistance is less. Cv Value is larger than that of the Ball-Type Control Valve.
|
Comparison of valve
| Item | Y-Shape diaphragm control valve | Other valves |
| Structure Drawing |
 |
 |
| Rate of Flow |
Hydraulic form, the rate of flow is larger than that of other control valves. The valve has 25% straight line flow area, which resistance is less and pressure loss is small, so it can save energy.
|
When fluid flows through the valve, it will cut the valve set and the inside structure. The resistance is extremely large and very easy to occur the corrosion phenomenon to shorten the lifetime of the valve.
|
| Maintenance | It is easy to check and replace the pipelines as they are at the outside of the valve. Just dismantle the air chamber set for maintenance, no need to dismantle the whole valve. |
No way to check and replace on the pipelines as part of them are inside the valve. Need to dismantle the whole valve for maintenance, which is very inconvenient.
|
| Control |
Open and Close are separately controlled and can be adjusted wantonly. The filter is built inside to avoid the blockage of foreign materials.
|
No way to adjust the speed of open and close. The close speed is too fast, so that it is easy to occur vibration and noise. The passageway to the air chamber is easy to be blocked by foreign materials.
|
| Others |
When the valve is fully opened, there is no any fittings to block from inlet to outlet. It is insensitive to foreign materials and substances. The V-Port Plug can be assembled. It is applied to small flow rate and high pressure difference environment. It is with air-out appliance which can manually remove air from the air chamber to guarantee the normal operation of the valve. Optional fittings are Travel Indicator, Check Valve, etc. There is a reserved nozzle on the valve for assembling pressure gage, thermometer or drain-pipe.
|
From inlet to outlet, there are valve set, valve enhanced tendon, etc. among the pipelines. They are sensitive to foreign materials and substances, especially to the banding substances, which are easy to get into the cylinder to damage the cylinder, piston and sealing, etc. The area ratio of the piston is too small, it possibly cannot close during low pressure. The air cannot be exhausted when the air is inside the air chamber which will affect the stability of the valve.
|
 |
 |
 |
| ● Close ● |
● Open ●
|
● Control ●
|
| When the pressure gets into the air chamber from the inlet of the valve, the valve will form an airtight seal. |
Once the fluid in the air chamber is discharged, there is no way to save the pressure in the air chamber. The valve will be opened and let the fluid pass through.
|
If the corresponding control appliance is assembled, the valve will automatically operate according to the pressure in the pipeline to guarantee the input/output pressure and rate of flow.
|
Connection Way
Working Temperature and Media
Operating Pressure
| Flange Class | Max. Working Pressure | |
| bar | psi | |
| 10K | 14 | 205 |
| 16K | 22 | 320 |
| 150LB | 17.4 | 250 |
| 300LB | 28 | 400 |
| PN16 | 16 | 235 |
| PN25 | 25 | 365 |
Dimension
|
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
|
Kv/Cv Value
|
Size
|
DN50 (2″)
|
DN60 (2.5″) |
DN80 (3″)
|
DN100 (4″)
|
DN125 (5″)
|
DN150 (6″)
|
|
Cv
|
66 |
100
|
140 |
240
|
460
|
590
|
|
Kv
|
57 | 86 | 120 | 205 | 395 | 510 |
|
Size
|
DN200 (8″)
|
DN250 (10″) |
DN300 (12″)
|
DN350 (14″)
|
DN400 (16″)
|
DN500 (20″)
|
|
Cv
|
990 | 1575 | 2290 | 3060 |
4000
|
5700
|
|
Kv
|
850 | 1355 | 1970 | 2630 | 3440 | 4900 |
Valve Sizing Method
Pressure Loss Curve – Standard
Pressure Loss Curve – V-port Plug
Cavitation Area
While acting as Pressure Reducing Valve or Pressure Relief Valve, cavitation may occur if pressure difference between valve’s inlet and outlet is greater enough. When water flow across valve seat and disk at high speed, water pressure will drop down. If pressure drops below the vapor pressure, vapor bubbles maybe formed. These bubbles will generate terrible damage to valve’s parts. And cavitation may cause vibration and noise.
A.Increase downstream pressure if possible. B.Select a larger valve in order to decrease flow velocity. C.Use more valves in parallel to reduce inlet pressure. D.For pressure reducing application, use more valves in serial to decrease the ΔP through a single valve.
Option:V-port Plug
 |
V-port Plug A component installed at the bottom of the bonnet that interfere the flow between the bonnet and the valve body. Suitable occasions: low flow rate, high differential pressure. Changing the proportion of water volume that the spool opens to achieve the same volume of water, which has a longer opening stroke than a flat retainer. when the amount of water changes, the opening height of the valve can be adjusted automatically to stabilize the water flow and reduce noise and vibration. |
|
 |
 |
 |
Download