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JD745X Multifunctional Pump Control Valve
The JD745X Multifunctional Pump Control Valve(super hydraulic control valve) we made can be divided into Diaphragm type and Piston type.
Details
JD745X Multifunctional Pump Control Valve
1. Product Introduction of The JD745X Multifunctional Pump Control Valve
The super hydraulic control valve we made can be divided into Diaphragm type and Piston type. Both are composed by a main valve, a pilot valve, matching tube, fittings and some other components. According to the different working purposes, function and places, only by changing the pipeline assembly of the pilot valve and the fittings to form a complete control system, different valves with different working performances can be resulted.
2. Structure of The JD745X Multifunctional Pump Control Valve
This valve has the following two types: Diaphragm type and Piston type. Both are composed by main valve, regulator, pilot tube, filter, etc.
Diaphragm Type
|
No.
|
Parts Name |
Material |
|
|
Diaphragm Type |
Piston Type |
||
|
1 |
1 |
Body |
CI / CS / DCI |
|
2,13 |
2,14 |
Filter |
Brass |
|
3 |
3 |
Regulator |
Brass |
|
4 |
11 |
Stem |
S.S |
|
5 |
8 |
Diaphragm/Gland |
NBR / DCI |
|
6 |
11 |
Bonnet |
CI / CS / DCI |
|
7 |
9 |
Slow Closing Disc |
S.S |
|
|
|
|
|
Piston Type
|
No.
|
Parts Name |
Material |
|
|
Diaphragm Type |
Piston Type |
||
|
8 |
10 |
Spring |
Alloy |
|
9 |
4 |
Main Valve Disc |
DCI |
|
10 |
12 |
Seat |
Brass / S.S |
|
11 |
|
Diaphragm Seat |
CI / CS / DCI |
|
12 |
13 |
Regulator |
Brass |
|
|
5 |
Sleeve |
S.S |
|
|
6 |
Sleeve Seat |
CI / CS / DCI |
|
|
7 |
Piston |
DCI |
3. Specifications
|
PN (MPa) |
Shell Test(MPa) |
Seat Test (MPa) |
Minimum Operation Pressure (MPa) |
Slow Closing Time (S) |
Applicable Temp. (℃) |
Applicable Medium |
|
1.0 |
1.5 |
1.0 |
0.07 |
3-120 |
0-80 |
Water |
|
1.6 |
2.4 |
1.6 |
||||
|
2.5 |
3.75 |
2.5 |
||||
|
4.0 |
6.0 |
4.4 |
4. Features & Working Performance of The JD745X Multifunctional Pump Control Valve
4.1 Features:
This product is Y Type Structure with Double Chamber Operator. While working, it has following advantages: Half-straight flow direction, Large flowing rate, Low Pressure loss, Steady Open and close, No Pressure Fluctuation, etc. Double Chamber Operation Apparatus can be disassembled as a whole, which is easy for inspection. Diaphragm is made of Nylon Reinforced Rubber, which makes it has long service life. Valve Disc sealing gasket can be removed, which is convenient for maintenance.
4.2 Working Performance:
Multifunctional Pump Control Valve can be installed in the system pipelines or the outlet of the pump. While normal working, the inlet side medium push the main valve disc lift, then the medium flows into the middle chamber through the flowing regulator, which makes the valve open quickly. When the valve stop working, the outlet side medium flows into the upper chamber through the regulator, the operator will move downwards and make the main and pilot valve disc move downwards, thus the valve can be closed quickly or slowly and avoid the backwards flowing of the medium.
5. Main External Dimension
|
DN |
L |
H |
D |
D1 |
n-d |
|||||||||
|
1.0 MPa |
1.6 MPa |
2.5 MPa |
4.0 MPa |
1.0 MPa |
1.6 MPa |
2.5 MPa |
4.0 MPa |
1.0 MPa |
1.6 MPa |
2.5 MPa |
4.0 MPa |
|||
|
50 |
205 |
270 |
150 |
150 |
150 |
150 |
110 |
110 |
110 |
110 |
4-17.5 |
4-17.5 |
4-18 |
4-18 |
|
65 |
209 |
270 |
165 |
165 |
165 |
165 |
125 |
125 |
125 |
125 |
4-17.5 |
4-17.5 |
4-18 |
4-18 |
|
80 |
240 |
340 |
185 |
185 |
185 |
185 |
145 |
145 |
145 |
145 |
4-17.5 |
4-17.5 |
4-18 |
8-18 |
|
100 |
292 |
400 |
200 |
200 |
200 |
200 |
160 |
160 |
160 |
160 |
4-18 |
8-18 |
8-18 |
8-18 |
|
125 |
330 |
440 |
220 |
220 |
235 |
235 |
180 |
180 |
190 |
190 |
8-18 |
8-18 |
8-22 |
8-22 |
|
150 |
370 |
500 |
285 |
285 |
300 |
300 |
240 |
20 |
250 |
250 |
8-23 |
8-23 |
8-26 |
8-26 |
|
200 |
450 |
640 |
340 |
340 |
360 |
375 |
295 |
295 |
310 |
320 |
8-23 |
8-23 |
12-26 |
12-30 |
|
250 |
500 |
690 |
395 |
405 |
425 |
450 |
350 |
355 |
370 |
385 |
12-23 |
12-26 |
12-30 |
12-33 |
|
300 |
600 |
820 |
455 |
460 |
485 |
515 |
400 |
410 |
430 |
450 |
12-23 |
12-26 |
16-30 |
16-33 |
|
350 |
650 |
950 |
505 |
520 |
555 |
580 |
460 |
470 |
490 |
510 |
16-23 |
16-26 |
16-33 |
2+-36 |
|
400 |
700 |
1400 |
565 |
580 |
620 |
660 |
515 |
525 |
550 |
585 |
16-26 |
16-30 |
16-36 |
16-39 |
|
450 |
780 |
1580 |
615 |
640 |
670 |
685 |
565 |
585 |
600 |
610 |
20-26 |
20-30 |
20-36 |
20-39 |
|
500 |
800 |
1600 |
670 |
715 |
730 |
755 |
620 |
650 |
660 |
670 |
20-26 |
20-33 |
20-36 |
20-42 |
|
600 |
930 |
1815 |
780 |
840 |
845 |
890 |
725 |
70 |
770 |
795 |
20-30 |
20-36 |
20-39 |
20-48 |
|
700 |
1030 |
2040 |
895 |
910 |
960 |
|
840 |
840 |
875 |
|
24-30 |
24-36 |
24-42 |
|
|
800 |
1100 |
2350 |
1015 |
1025 |
1085 |
|
950 |
950 |
990 |
|
24-34 |
24-35 |
24-48 |
|
|
900 |
1200 |
2606 |
1115 |
1125 |
1185 |
|
1050 |
1050 |
1090 |
|
28-34 |
28-39 |
28-48 |
|
|
1000 |
1300 |
2765 |
1230 |
1255 |
1320 |
|
1160 |
1170 |
1210 |
|
28-36 |
28-42 |
28-56 |
|
6. Assemble Notification
6.1 The best assemble direction of the multifunctional pump control valve is horizontal assembling.(i.e. the Bonnet is upwards)
6.2 Check the medium flowing direction before assembling so as to avoid wrongly assembling.
6.3 Clean the pipelines before assembling and a strainer needs to be applied in front of the valve, which will avoid the impurity affect the working performance and will prevent the damage of the product.
6.4 If the working temperature is below 0, heat insulation materials need to be used.
6.5There must be enough space to assemble the Multifunctional Pump Control Valve. And the control valve needs to applied behind the check valve. The details can be referenced the assembling drawing.
7. Notifications
7.1 Check the condition of the pilot valve, matching pipes and fittings before operation.
7.2 Check if the regulator on the pilot valve and matching pipes can work flexibly.
7.3 Maintain the pipelines after operating the system for some time.
8. Testing Methods
8.1 Open the globe valve 3,12 ( 3, 13 of the Piston type.)
8.2Let the pump start working and check if the inlet and outlet pressure is normal.
8.3Let the pump stop working and check if there is water hammer and if the pump act reversely.
8.4If the water hammer is big, then need to open less of the globe valve.
8.5 If the pump acts reversely, then need to open more of the globe valve
9 Malfunction maintenance
|
Problem |
Inspection Item |
Inspection Methods |
Maintenance methods |
|
Main valve can’t open |
1. Pressure is too low |
Check if the pressure is low |
Strengthen the pressure |
|
2. Adjusting stem is out |
|
insert the adjusting stem |
|
|
3. Globe Valve closed |
|
Open the globe valve |
|
|
4. Pipelines blocked |
Lower pipelines |
Remove the blocks |
|
|
Main valve can’t be closed tightly |
1. Diaphragm or O-ring is damaged |
Open the bonnet and take out the damaged diaphragm or piston |
Change the diaphragm or O-ring |
|
2. Piston is too tight |
|
Downwards the adjusting stem, and then return it when the piston can move flexibly |
|
|
3 Globe valve closed |
|
Open the globe valve |
|
|
4. Backwards water pressure is too low |
Check the water pressure |
Strengthen the pressure |
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Contact
Goole Valve Technology Co.,Ltd
Address: He_yi Industrial Zone,Oubei Town,Wenzhou City,Zhejiang Province,P.R.China
Tel: 86-577-57781015
E_mail: goole4@goolevalve.com
