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2023-10-18 05:37
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Company Profile
Shenzhen Front Valve Co.,Ltd.By certification [File Integrity]
Contact:frontvalve(Mr.)
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Area:Guangdong
Address:Guangdong
Website:http://www.frontvalve.com/ http://frontvalve.miaoyincn.com/
Gate valve is a type of fluid control valve, which is used for stopping, opening and closing the flow of fluid in a pipeline. It controls the fluid flow by raising and lowering a gate that blocks or allows the flow of fluid. Gate valves are characterized by their simple structure, good sealing performance and low fluid resistance, making them suitable for pipeline systems with high pressure, large diameter, high viscosity and solid particle media.
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However, due to the large operating torque and slow opening and closing speed, gate valves are generally less suitable for applications that required frequent operation, such as regulating the flow rate, stopping or opening, and flow control. Common application fields include petrochemicals, power generation, metallurgy, light industry, textiles, construction and other industries.
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Gate valves are used when minimum pressure loss and a free bore is needed, When fully open, a typical gate valve has no obstruction in the flow path resulting in a very low pressure loss, and this design makes it possible to use a pipe-cleaning pig. Gate valve is a multi-turn valve meaning that the operation of the valve is done by means of a threaded stem. As the valves had to turn multiple times to go from open to closed position, the slow operation also prevents water hammer effects.
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Design and manufacture: API600, ANSI B16.34
Test and inspection: API598
Face to face dimensions: ANSI B16.10
RF and RTJ Flanged end: 2†to 24†as per ANSI B16.5, 26†to 48†as per MSS SP-44
Butt-welding end: ANSI B16.25
Other standards (DIN, BS, JIS) is also available upon request.
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1.Size: 2†to 48â€
2.Class: 150LB to 2500LB
3.Features: Bolted bonnet or pressure seal bonnet, outside screw and yoke, rising stem, solid wedge or flexible Wedge, threaded or welded seat ring
4.Material: Carbon steel, stainless steel, alloy steel, such as WCB, WCC, WC1, WC6, WC9, C5, C12, CF8, CF8M, CF3, CF3M, CN7M, LCB, LCC, duplex stainless steel, Monel, Alloy 20, Al-bronze C95800, cast iron and ductile iron, etc.
5.Operation: Hand wheel, gear, pneumatic and electric actuator
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Gate valves' working principle is very simple. When the valve is open, the gate is fully retracted into the valve body, allowing the fluid to flow through the valve with very little resistance. When the valve is closed, the gate is moved downward, compressing against the seats to create a tight seal and preventing the flow of fluid.
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1. Effortless when opening and closing: Whether it is opened or closed, the movement direction of the gate is perpendicular to the flow direction of the medium.
2. Closed tightly: Providing a tight seal when closed, which makes them ideal for applications where a leak-free shutoff is necessary.
3. Durability: Sturdy and robust, with few moving parts, which makes them reliable and long-lasting.
4. Installed easily: The media can flow in any direction on both sides of wedge gate valve, easy to install. Both sides of the gate channel are symmetrical.
5. Versatility: Suitable for a wide range of application, from water treatment plants to oil.
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No. |
Parts |
Materials |
1 |
Body |
ASTM A216 WCB |
2 |
Seat ring |
A105 + 13CR |
3 |
Wedge |
ASTM A216 WCB + 13CR |
4 |
Stem |
ASTM A182 F6 |
5 |
gasket |
Stainless steel with graphite spiral wounded |
6 |
Bonnet |
ASTM A216 WCB |
7 |
Bonnet bolt |
ASTM A193 B7 |
8 |
Bonnet nut |
ASTM A194 2H |
9 |
Backseat bushing |
ASTM A182 F6a |
10 |
Stem packing |
Flexible Graphite |
11 |
Gland |
ASTM A182 F6 |
12 |
Gland flange |
ASTM A216 WCB |
13 |
Gland eyebolt |
ASTM A193 B7 |
14 |
Gland nut |
ASTM A194 2H |
15 |
Yoke |
ASTM A216 WCB |
16 |
Stem nut |
ZCuAl10Fe3 / A439 D2 |
17 |
Hand wheel |
Ductile iron |
18 |
H.W. Lock Nut |
ANSI 1020 |
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Class 150
DN |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
750 |
900 |
NPS |
2 |
2.1/2 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
30 |
36 |
L(RF) |
178 |
191 |
203 |
229 |
254 |
267 |
292 |
330 |
356 |
381 |
407 |
432 |
457 |
508 |
610 |
711 |
L1(BW) |
216 |
241 |
283 |
305 |
381 |
403 |
419 |
457 |
502 |
572 |
610 |
660 |
711 |
813 |
915 |
1016 |
L2(RTJ) |
191 |
203 |
216 |
241 |
267 |
279 |
305 |
343 |
368 |
394 |
419 |
445 |
470 |
521 |
622 |
724 |
H(OPEN) |
400 |
490 |
508 |
585 |
740 |
773 |
995 |
1160 |
1375 |
1569 |
1765 |
1978 |
2219 |
2611 |
3197 |
3737 |
W |
200 |
200 |
250 |
300 |
300 |
350 |
350 |
400 |
450 |
500 |
600 |
600 |
680 |
750 |
915 |
915 |
RF(Kgs) |
18 |
28 |
30 |
50 |
70 |
85 |
128 |
220 |
310 |
450 |
550 |
700 |
910 |
1130 |
2780 |
3700 |
BW(Kgs) |
15 |
22 |
26 |
40 |
68 |
77 |
118 |
200 |
290 |
435 |
510 |
650 |
880 |
1100 |
2650 |
3520 |
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Class 300
DN |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
NPS |
2 |
2.1/2 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
L-L1(RF-BW) |
216 |
241 |
283 |
305 |
381 |
403 |
419 |
457 |
502 |
762 |
838 |
914 |
991 |
1143 |
L2(RTJ) |
232 |
257 |
298 |
321 |
397 |
419 |
435 |
473 |
518 |
778 |
854 |
930 |
1010 |
1165 |
H(OPEN) |
470 |
525 |
533 |
633 |
800 |
805 |
1024 |
1232 |
1460 |
1645 |
1841 |
1988 |
2208 |
2603 |
W |
200 |
200 |
250 |
250 |
350 |
350 |
400 |
450 |
500 |
600 |
600 |
680 |
750 |
915 |
RF (Kgs) |
24 |
44 |
48 |
73 |
124 |
144 |
226 |
350 |
580 |
715 |
1050 |
1235 |
1655 |
2320 |
BW (Kgs) |
20 |
35 |
37 |
54 |
100 |
110 |
174 |
285 |
495 |
615 |
940 |
1090 |
1500 |
2100 |
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Class 600
DN |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
660 |
NPS |
2 |
2.1/2 |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
L-L1(RF-BW) |
292 |
330 |
356 |
432 |
559 |
660 |
787 |
838 |
889 |
991 |
1092 |
1194 |
1397 |
L2(RTJ) |
295 |
333 |
359 |
435 |
562 |
664 |
791 |
841 |
892 |
994 |
1095 |
1200 |
1407 |
H(OPEN) |
474 |
520 |
547 |
703 |
913 |
1077 |
1276 |
1490 |
1623 |
1816 |
2260 |
2260 |
2900 |
W |
250 |
250 |
250 |
300 |
450 |
500 |
600 |
680 |
750 |
850 |
960 |
960 |
1100 |
RF (Kgs) |
35 |
55 |
72 |
126 |
265 |
444 |
700 |
940 |
1310 |
1610 |
2070 |
2405 |
3810 |
BW (Kgs) |
32 |
47 |
64 |
103 |
218 |
374 |
570 |
830 |
1012 |
1217 |
1760 |
2000 |
3200 |
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Class 900
DN |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
NPS |
2 |
2.1/2 |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
L-L1(RF-BW) |
368 |
419 |
381 |
457 |
610 |
737 |
838 |
965 |
1029 |
1130 |
1219 |
1321 |
1549 |
L2(RTJ) |
371 |
422 |
384 |
460 |
613 |
740 |
841 |
968 |
1038 |
1140 |
1232 |
1334 |
1568 |
H(OPEN) |
620 |
705 |
695 |
825 |
1065 |
1320 |
1540 |
1840 |
2135 |
2380 |
2580 |
2780 |
3130 |
W |
300 |
350 |
350 |
400 |
500 |
600 |
750 |
850 |
850 |
960 |
960 |
1100 |
1100 |
RF (Kgs) |
95 |
128 |
125 |
192 |
378 |
635 |
900 |
1550 |
2170 |
3070 |
3930 |
5120 |
7800 |
BW (Kgs) |
80 |
110 |
105 |
165 |
330 |
520 |
730 |
1300 |
1800 |
2650 |
3400 |
4300 |
6500 |
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Class 1500
DN |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
NPS |
2 |
2.1/2 |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
L-L1(RF-BW) |
368 |
419 |
470 |
546 |
705 |
832 |
991 |
1130 |
1257 |
1384 |
1537 |
1664 |
1943 |
L2(RTJ) |
371 |
422 |
473 |
549 |
711 |
841 |
1000 |
1146 |
1276 |
1407 |
1559 |
1686 |
1971 |
H(OPEN) |
695 |
705 |
770 |
872 |
1092 |
1400 |
1600 |
1840 |
2025 |
2230 |
2430 |
2630 |
3130 |
W |
400 |
400 |
400 |
500 |
600 |
750 |
850 |
960 |
960 |
1100 |
1100 |
1200 |
1200 |
RF (Kgs) |
95 |
128 |
181 |
275 |
627 |
1000 |
2200 |
3300 |
4200 |
6300 |
7500 |
9000 |
11000 |
BW (Kgs) |
80 |
110 |
145 |
220 |
560 |
850 |
1950 |
2850 |
3550 |
5500 |
6500 |
8000 |
9500 |
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