German standard F5 soft seal gate valve

Short Description:

The gate has two sealing surfaces. The two sealing surfaces of the most commonly used mode gate valves form wedges. The wedge angle varies with the valve parameters, usually 50. When the medium temperature is not high, it is 2 52.


Product Detail

Product Tags

Wedge gate valve can be made into a whole, called rigid gate; it can also be made into a gate that can produce slight deformation to improve its workability, make up for the deviation of sealing surface angle in the process of processing. This kind of gate is called elastic gate. Usually there are trapezoidal threads on the lifting rod. Through the nut at the top of the valve and the guide groove on the valve body, the rotary motion is changed into linear motion, that is to say, the operating torque is changed into the operating thrust. When opening the valve, when the gate lifting height is equal to 1:1 times the valve diameter, the flow passage is completely open, but when running, this position can not be monitored. In practical use, the vertex of the valve stem is used as the sign, that is, the position of the valve stem that is not moving is used as its full open position. In order to consider the locking phenomenon of temperature change, the valve is usually opened to the vertex position and reversed to 1/2-1 turn as the position of the fully open valve. Therefore, the full open position of the valve is determined by the position of the gate (i.e. stroke).

 

Product characteristics:

1. Flat-bottomed seat, no accumulation of dirt, make the seal more reliable.

2. The valve disc is encapsulated with NBR as a whole. The inner parts of the valve are made of corrosion-resistant stainless steel and copper alloy, which can be used for sewage system to adapt to harsh working conditions.

3. Small size, light weight, easy to install and maintain

4. The valve stem is sealed with three O-rings, which greatly reduces the friction resistance of the switch and makes the switch light and water-tight.

暗杆软密封闸阀

 

Major Component Materials

name

Texture of material

valve body

Ductile iron

Valve plate

Ethylene propylene rubber

Nut

brass

Bolt

SS201

Bonnet

Ductile iron

Opposite open loop

brass

Type O circle

Ethylene propylene rubber

Stem

 20Cr13

Top cover

Ductile iron

handwheel

Ductile iron

Dust cover

Ethylene propylene rubber

 

Main Dimensions Table

DN(mm) D D1 D2 L H N-ød b
10 16 25 10 16 25 10 16 F4 5163 F5 10 16 25 10 16 25
40 150 150 150 110 110 110 84 84 140 165 240 184 4-19 4-19  4-19  18  18  18
50 165 165 165 125 125 125 99 99 150 178 250 235 4-19 4-19  4-19  19  19  19
65 185 185 185 145 145 145 118 118 170 190 270 265 4-19 4-19  8-19  19  19  19
80 200 200 200 160 160 160 132 132 180 203 280 290 8-19 8-19  8-19  18-19  18-19  18-19
100 220 220 235 180 180 190 156 156 190 229 300 320 8-19 8-19  8-22  18-19  18-19  18-19
125 250 250 270 210 210 220 184 184 200 254 325 380 8-19 8-19  8-26  18  18  24
150 285 285 300 240 240 250 210 210 210 267 350 460 8-23 8-23  8-26  19  19  24
200 340 340 360 295 295 310 266 266 230 292 400 520 8-23 12-23  12-26  20  20  24
250 405 405 425 350 355 370 319 319 250 330 450 630 12-23 12-28 12-30  22  22  27
300 460 460 485 400 410 430 370 370 270 356 500 720 12-23 12-28  16-30  24  22  30
350 520 520 555 460 470 490 429 429 290 381 550 800 16-23 16-28  16-33  25  25  33
400 580 580 620 515 525 550 480 480 310 406 600 850 16-28 16-31  16-36  28  28  -
450 640 640 - 565 585 548 548 330 432 650 1000 20-28 20-31  -  29  29  -
500 715 715 - 620 650 609 609 350 457 700 1200 20-28 20-34  -  31  31  -
600 840 840 - 725 770 720 720 390 508 800 1350 20-31 20-28  -  33  33  -
700 895 910 - 840 840 800 800 430 610 - 1390 24-30 24-36  -  32  32  -
800 1015 1025 - 950 950 900 900 470 660 - 1520 24-34 24-40  -  35  35  -
900 1115 1125 - 1050 1050 1000 1000 510 711 - 2090 28-34 28-40  -  36  36  -
1000 1230 1255 - 1160 1170 1112 1112 550 811 - 1980 28-37 28-43  -  40  40  -

 


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