Gate Valve Series

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Slab Gate Valve

MFG: Shanghai Fengqi Industry Development Co., Ltd.
Eml: sales@fengqi.sh.cn

Tel: 0086 (021) 3652 8716
Mob: (0086) 138 1635 6498

product drawing

Manual slab gate valve
Manual slab gate valves
Electric slab gate valve

Electric slab gate valve
Pneumatic slab gate valve
Pneumatic slab gate valve
bevel gear slab gate valve
bevel gear slab gate valve

Application

Slab gate valve with diversion hole is used in natural gas, petroleum, chemical industry, environmental protection, urban pipelines, gas pipelines and other pipes and venting systems and vapor storage device. It is used as a hoist equipment. It is applicable to the long-distance pipeline of natural gas extraction and purification.

Features

The seat sealed structure should be flexible with preload force, and the upstream and downstream sealing seat should seal at the same time. Between the seat and seal materials is always face to face seal. Seat has self-cleaning function, and will not washed directly by the air in the process of the open or close of the valve. Seat should be made of materials with lubrication and anti-abrasion. The breakdown of the actuator will not affect other parts of the valve, and the repair and replacement can be done without disassemble the valve.

The whole structure features

Yokesleeve: aluminum bronze yokesleeve matched with needle thrust bearings, will minimize the operating torque.
Stem: the length of the screw is until to the bracket; pin and spot welding; it will have stability.
Pressure Seal: simple structure, configuration sub-buckles, and silver-plated low-carbon steel washers, will help to disassemble and achieve the best cap sealing.
Seat ring: welded seat ring perpendicular to the flow path, it is easy to maintain.
actuator: You can configure the electric, hydraulic or pneumatic actuator. Under DN300 configure the standard manual handwheel, and above DN350 configure helical gear operating mechanism.
Yoke: fully assembled yoke has passed anti-seismic test, it is easy to maintain and install actuator.
Gland: Two-piece of self-regulating gland, they are uesd to avoid pop-up.
Whole backseat: Hard, and has the longest service life.
Disc: a spring-loaded disc can self-regulate and reduce the torque requirements of the actuator.
Whole locking: the whole cast support stop device and the Position-Assembled support disc make the seat more stable and reliable.

Dimensions & constructral diagram

Slab gate valve constructral diagram(pic1)


Slab gate valve constructral diagram(pic1)
Slab gate valve constructral diagram(pic2)
Slab gate valve constructral diagram(pic2)
Slab gate valve constructral diagram(pic3)
Slab gate valve constructral diagram(pic3)

Implement standards

design specification face to face dimension connected flange test and inspection pressure and temperature identification
JB/T5298 JB/T5298 JB/79 JB/T5298 GB9131 GB/T12220
API6D API6D ANSI-16.5 API6D ANSI B16.34 MSS SP-25

The main performance specifications

design grade The test pressure at room temperature(MPa) Suitable temperature ℃ Applicable medium
shell left seal 封left seal low pressure seal “G” type “D” type conventional type anti-sulfur type basic type
nominal pressure PN(MPa) 1.6 2.4 1.76 1.76 0.6 -29~50 -45~21 -2~121 The medium of total content of H2S and CO2more than 500mg/m2 oil, gas, water,etc
2.5 3.75 2.75 2.75 0.6
4.0 6.0 4.4 4.4 0.6
6.4 9.6 7.04 7.04 0.6
Pound grade Lb 150 3.0 2.2 2.2 0.6
300 7.7 5.6 5.6 0.6

The materials of main parts and applicable scope

bonnet WCB WC6 A352-LCB A351-CF8M
disc 2Cr13+ENP 20CrMoV+STL ANSO410+ENP ANSI316+ENP
stem 2Cr13 2Cr13 A182-A6a A182-A316S
seat 25+PTFE 20CrMoV+STL A105+PTFE A182-F316+PTFE
packing NBR/FPM Flexible Graphite PTFE+FPM
gasket --
bolt 35 35CrMo A193-B7M A193-B8
applicable medium water,oil,steam team,oil propane,ethylene nitrose

The main external and connection dimensions of PN1.6MPa-2.5Mpa

1.6MPa DN L D D1 D2 Do f b H H1 n-Φd
male flange
RF
(K)Z43WF-16C
(K)Z543WF-16C
(K)Z643WF-16C
(K)Z943WF-16C
50 178 160 125 100 250 3 16 584 80 4-Φ18
65 190 180 145 120 250 3 18 634 95 4-Φ18
80 203 195 160 135 250 3 20 688 100 8-Φ18
100 229 215 181 155 300 3 20 863 114 8-Φ18
125 254 245 210 185 350 3 22 940 132 8-Φ18
150 267 280 240 210 350 3 24 1030 150 8-Φ23
200 292 335 295 265 350 3 26 1277 168 12-Φ23
250 330 405 355 320 400 3 30 1491 203 12-Φ25
300 356 460 410 375 450 4 30 1701 237 12-Φ25
350 381 520 470 435 500 4 34 1875 265 16-Φ30
400 406 580 525 485 305 4 36 2180 300 16-Φ30
450 432 640 585 545 305 4 40 2440 325 20-Φ34
500 457 705 650 608 305 4 44 2860 360 20-Φ41
600 508 840 770 718 305 5 48 3450 425 20-Φ41
700 610 910 840 788 305 5 50 3960 460 24-Φ41
800 660 1020 950 898 305 5 52 4550 512 24-Φ41
900 711 1120 1050 998 250 5 54 5250 565 28-Φ48
1000 811 1250 1170 1110 250 5 56 5870 630 28-Φ18
2.5MPa 50 178 160 125 100 250 3 20 584 80 4-Φ18
male flange
RF
(K)Z43WF-25
(K)Z543WF-25
(K)Z643WF-25
(K)Z943WF-25
65 190 180 145 120 300 3 22 634 95 8-Φ18
80 203 195 160 135 350 3 22, 388 100 8-Φ18
100 229 230 190 160 350 3 24 863 114 8-Φ23
125 254 270 220 188, 350 3 28 940 132 8-Φ25
150 267 300 250 218 400 3 30 1030 150 8-Φ25
200 292 360 310 278 450 3 34 1277 168 12-Φ25
250 330 425 370 332 500 3 36 1491 203 12-Φ30
300 356 485 430 390 305 4 40 1701 237 16-Φ30
350 381 550 490 448 305 4 44 1875 265 16-Φ34
400 406 610 550 505 305 4 48 2180 300 16-Φ34
450 432 660 600 555 305 4 50 2440 325 20-Φ34
500 457 730 660 610 305 4 52 2860 360 20-Φ41
600 508 840 770 718 305 5 56 3450 425 20-Φ41
700 610 955 875 815 305 5 60 3960 460 24-Φ48
800 660 1070 990 930 305 5 64 4550 512 24-Φ48
900 711 1180 1090 1025 - 5 66 5250 595 28-Φ54
1000 811 1305 1210 1140 - 5 68 5870 660 28-Φ48

The main external and connection dimensions of PN4.0MPa-10.0Mpa

4.0MPa DN L D D1 D2 Y Do f f2 b H H1 n-Φd
concave-convex flange
MFM
(K)Z43WF-40
(K)Z543WF-40
(K)Z643WF-40
(K)Z943WF-40
50 250 160 125 100 88 250 3 4 20 584 80 4-Φ18
65 280 180 145 120 110 250 3 4 22 634 95 8-Φ18
80 310 195 160 135 121 250 3 4 22 679 102 8-Φ18
100 350 230 190 160 150 300 3 4.5 24 863 115 8-Φ23
125 400 270 220 188 176 350 3 4.5 28 940 133 8-Φ25
150 450 300 250 218 204 350 3 4.5 30 1040 152 8-Φ25
200 550 375 320 282 260 350 3 4.5 38 1282 188 12-Φ30
250 650 445 385 345 313 400 3 4.5 42 1495 223 12-Φ34
300 750 415 450 408 364 450 4 4.5 46 1701 250 16-Φ34
350 850 470 510 465 422 500 4 5 52 1880 280 16-Φ34
400 950 655 585 535 474 305 4 5 58 2200 310 20-Φ41
450 1050 680 610 560 524 305 4 5 60 2480 335 20-Φ41
500 1150 755 670 612 576 305 4 5 62 2890 380 20-Φ48
600 1350 890 795 730 678 305 5 6 62 2480 450 20-Φ54
700 1450 995 900 835 768 305 5 6 68 3985 500 24-Φ54
800 1650 1135 1030 960 876 305 5 6 76 4750 570 24-Φ58
6.4MPa 50 250 175 135 105 88 250 3 4 26 584 90 4-Φ23
concave-convex flange
MFM
(K)Z43WF-64
(K)Z543WF-64
(K)Z643WF-64
(K)Z943WF-64
65 280 200 160 130 110 250 3 4 28 634 105 8-Φ23
80 310 210 170 140 121 250 3 4 30 679 110 8-Φ23
100 350 250 200 168 150 300 3 4.5 32 763 130 8-Φ25
125 400 295 202 176 350 3 4.5 36 970 150 8-Φ30 -
150 450 340 280 240 204 350 3 4.5 38 1038 175 8-Φ34
200 500 405 345 300 260 350 3 4.5 44 1282 210 12-Φ34
250 650 470 400 352 313 400 3 4.5 48 1495 240 12-Φ41
300 750 530 460 412 364 450 4 4.5 54 1965 270 16-Φ41
350 850 595 525 475 422 500 4 5 60 2185 300 16-Φ41
400 950 670 585 525 474 305 4 5 66 2573 335 16-Φ48
450 1050 715 630 570 524 305 4 5 68 2800 360 20-Φ48
500 1150 800 705 640 576 305 4 5 70 3280 405 20-Φ54
600 1350 930 820 750 678 305 5 6 76 380 470 20-Φ58
10.0MPa 50 250 195 145 112 88 250 3 4 28 590 100 4-Φ25
concave-convex flange
MFM
(K)Z43WF-100
(K)Z543WF-100
(K)Z643WF-100
(K)Z943WF-100
65 280 220 170 138 110 250 3 4 32 640 115 8-Φ25
80 310 230 180 148 121 250 3 4 34 680 120 8-Φ25
100 350 265 210 172 150 300 3 4.5 38 870 135 8-Φ30
125 400 310 250 210 176 350 3 4.5 42 980 155 8-Φ34
150 450 350 290 250 204 350 3 4.5 46 1100 180 12-Φ34
200 550 430 360 312 260 350 3 4.5 454 1315 220 12-Φ41
250 650 500 430 382 313 400 3 4.5 60 1605 255 12-Φ41
300 75 585 500 442 364 450 4 4.5 70 1925 295 16-Φ48
350 850 665 560 408 422 500 4 5 76 2280 335 16-Φ54
400 950 715 620 558 474 305 4 5 80 2580 360 16-Φ54
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