Manual Square Slide Gate Valve
Product Description
Manual slide gate valve, also known as manual knife gate valve, is a type of valve in which the gate and seat are always in close contact and sealed. Its principle is that the gate has a circular opening of the same diameter, and the opening and closing of the gate allows the circular opening on the gate to completely separate and match the diameter. Manual plug-in valve is the main control equipment, widely used in metallurgy, mining, building materials, and grain. Manual plug valve is usually used in conjunction with the discharge device for the flow rate or conveying capacity of powders, crystalline granules, granular materials, and small pieces of materials. The diameter of the manual spiral gate valve is matched with the feeding port of the discharge device, and there are two types: square and circular.
Product Features
Structural Features
Manual slide gate valves are often used in conjunction with unloading devices or silos. Manual spiral gate valves are easy to install with flange connections, and there are two types of inlet and outlet ports: square and circular. There are dozens of specifications according to the diameter, and they are widely used in industries such as metallurgy, carbon, chemical, and building materials. The manual plug-in valve has the advantages of simple and compact structure, reasonable design, reliable sealing, lightweight and flexible operation, small volume, smooth channel, low resistance, easy installation, and easy disassembly. The manual spiral gate valve can be installed horizontally or vertically, and has the characteristics of wear resistance and long service life with automatic compensation function. During normal use, the transmission parts of manual plug-in valves should be regularly inspected and lubricated for maintenance.
Specification
Specification
1. The shell and sealing test media for the plug-in valve are water (including preservatives), kerosene, or other suitable liquids with a viscosity not greater than water.
2. The sealing pair is a non-metallic sealed plug-in valve, and the sealing shell test and requirements are in accordance with GB/T13927-92 Class D.
3. The sealing pair is a metal sealed plug-in valve. For those with sealing performance requirements, the leakage rate of the sealing test is calculated at 1 x DNmm/s. For those without sealing performance requirements, this test is not conducted.
4. The plug-in valve driven by electric, hydraulic, and pneumatic devices, after adjusting the closing position, is closed three times and subjected to shell and sealing tests according to the requirements of 1 and 3.
5. The cleanliness requirements of the plug-in valve shall comply with the provisions of JB/T7748.
6. Static pressure life test.
7. The number of static pressure life tests for the plug-in valve shall be in accordance with the regulations, while other technologies shall comply with the provisions of JB/Z 234
Working Principle
Working Principle
Using compressed air as power, the direction of the air path is changed by reversing the solenoid valve, pushing the cylinder piston and driving the gate plate to move back and forth in the horizontal direction, achieving the purpose of opening and closing the gate.
Product Details
Main Parts and Materials
| Sr No. |
Parts |
Material |
Sr No. |
Parts |
Material |
| 1 |
Body |
WCB |
7 |
Middle Body |
WCB |
| 2 |
Disc |
Ceramic |
8 |
Packing |
Flexible Graphite |
| 3 |
Seat |
Ceramic |
9 |
Packing Gland |
2Cr13 |
| 4 |
Stem |
2Cr13 |
10 |
Bracket |
Q235 |
| 5 |
Stud |
35CrMoVA |
11 |
Pneumatic Actuator |
Aluminum Body |
| 6 |
Nut |
25 |
|
|
|
Main External and connecting Dimensions
| DN |
PN |
L |
D |
D1 |
C |
H |
n-d |
|
| 50 |
10 |
200 |
160 |
125 |
16 |
520 |
4-18 |
|
| 65 |
220 |
180 |
145 |
18 |
595 |
4-18 |
|
| 80 |
240 |
195 |
160 |
20 |
635 |
8-18 |
|
| 100 |
280 |
215 |
180 |
20 |
630 |
8-18 |
|
| 125 |
300 |
245 |
210 |
22 |
715 |
8-18 |
|
| 150 |
320 |
280 |
240 |
24 |
840 |
8-23 |
|
| 175 |
320 |
310 |
270 |
26 |
885 |
8-23 |
|
| 200 |
350 |
335 |
295 |
26 |
1155 |
8-23 |
|
| 250 |
400 |
405 |
350 |
30 |
1400 |
8-23 |
|
| 300 |
450 |
460 |
400 |
30 |
1800 |
12-23 |
|
View of the factory
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