Design and Manufacture:Cast steel gate valve to API
600(ISO 10434)or API 6D:Cast stainless steel gate valve
to API 603 or API 600:Forged steel gate valve to API602
lnspection and Test:API 598,API600 or AI6D
End flange dimension:ASME B16.5 (for NPS≤24)
ASM B16.47 series B、API605 or ASME B16.47 series A、MSS SP-44(for NPS＞24)
BW end dimension:ASME B16.25
Socket-weld dimension: ASME B16.11
Face to face and end to end:ASME B16.10
Pressure-temperature ratings:ASME B16.34
Gasket of Cover Flange
Carbon steel or stainless steel+flexible graphite combined gasket is used for class 150 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class300 gate valve;Stainless steel+flexible graphite wounded gasket is used for Class600 gate valve,and ring joint gasket is also optional for Class600 gate valve;Ring Joint gasket is used for Class900 gate valve,Pressureized seal design is used for Class1500-Class500 gate valve;
Body and Bonnet Connection
The body and bonnet of Class150-Class900 gate valves are usually connected with studs and nuts.Aand The body and bonnet of Class 1500-Class2500 gate valves are usually of pressureized seal design.
Belleville Spring Loaded Packing lmpacting System
lf being requested by the customer,the Belleville spring loaded packing impacting system can be a do pted for enhancing the durability and reliability of the packing seal.
Packing Seal
Molded flexible graphite is used for packing material,PTFE or combined packing material can be also Lised if being requested by the customer.The internal suface of the stuffing box,of which area is contacted with the packing,is of excellent finish (Ra3.2μm).The stem surface,contacting with the packing,should be rolled and pressed after being precisely machined,so as to reach to the high finish and compactness (Ra0.8μm)and ensure the reliable tightness of the stem area.
Actuation
Hand wheel or gear box is usually used for gate valve actuation,Chain wheel and electric actuator can be also used for gate valve actuation if being requested by the customers.
Back Seating Design
All our gate valves have the back seating design.ln most cases,the carbon steel gate valve is fitted with a renewable back seat,For stainless steel gate valve,the back seat is machined directly in the bonnet or is machined atfer welding.Welding.When the gate valve is at fully open position ,the sealing of the back seat can be very reliable,However,asp per the requirement of API 600,it is not advisable to add or change packing by the mean of back seating wen the valve is res sure containing
Design of Disc
Gate valves wiht NPS≥2 are of wedge flexible gate;
Gate valves with NPS＜2 are of wedge solid gate.
Stem Design
the stem is of integral for ged design,The minimum diameter of the stem shall per the standared requirement,The connection of the stem and disc is T type. The strength of the connecting area is bigger than that of the T threaded part of the stem.The strength test of that area conforms to API 598.
Seat
For carbon steel gate valve,the seat is usually forged steel.The sealing surface of the seat is spray welded with hard alloy specified by the customer,Renewable threaded seat is used for NPS≤10 gate valves,and welded on seat can be also optional if being requested by the customer Welded on seat is used for NPS≤10 Carbon steel gate valves. For Stainless steel gate valve,integral seat is usually adopted,or to weld hard alloy directly integrally.Threaded or welded on s-eat is also optional for stainless steel gate valve if being requested by the customer.
Special Gate Valve
Besides the common gate valves,Baiqiang also makes cryogenic gate valve,Jacketed Gate valve,Bellow Sealed Gate Valve,Extension Stem Gate Valve for underground application,Falt Gate Valve,etc
Stem Nut
Usually,the stem nut is made of ASTM A439 D2 it is also can be made of copper ally if being requested by the customer.For large sized gate valves (NPS10 for Class 150,NPS 8 for Class300,NPS 6 for Class 600,NPS 5 for Class900),rolling bearing is fitted at the two sides of the stem nut in order to minimize the open and close torque of the gate valve.
[NextPage]
· Administer Standard
|
Design And Manufacture |
Face to face/
End to end |
Flange Dimension |
Butt welding dimension |
Pressure temperature Lating |
Lnspection
And Test |
|
API 600 |
ANSI B16.10 |
ANSI B16.5 |
ANSI B16.25 |
ANSI B16.34 |
API 598 |
|
API 6D |
API 6D |
ANSI B16.5 |
ANSI B16.25 |
ANSI B16.34 |
API 6D |
· Pressure Test
|
Nominal Pressure |
Shell Test |
water Seal Test |
Air Seal Test |
|
MPa |
Lbf/in2 |
MPa |
Lbf/in2 |
MPa |
Lbf/in2 |
|
150 |
3.0 |
430 |
2.2 |
315 |
0.4-0.7 |
60-100 |
|
300 |
7.7 |
1110 |
5.7 |
815 |
|
600 |
15.3 |
2220 |
11.3 |
1630 |
|
900 |
23.0 |
3330 |
17.0 |
2445 |
|
1500 |
38.4 |
5560 |
28.2 |
4080 |
|
2500 |
64.0 |
9255 |
47.0 |
6790 |
· Main Part Materials and Property
|
Body Cover Disc |
Stem |
Sealing Face |
Sealing Shin |
Packing |
Working Temperature |
Suitable Medium |
|
WCB |
F6a |
With Body
Material
PTFE
Nylon |
Enhanced
Flexible
Graphite
1Cr13/Flexible
Graphite SFB-2
Soft Steel
F304
F316
F304L
F316L |
Flexible
Graphite
Enhanced
Flexible
graphite
SFB/260
SFP/260
PTFE |
≤425℃ |
Water
Steam
Petroleum
Propducts |
|
WC1 |
F11
F12 |
≤450℃ |
|
WC6 |
≤540℃ |
|
WC9 |
≤570℃ |
|
C5 C12 |
≤540℃ |
|
CF8 |
F304 |
≤200℃ |
Nitric acid
Acetic acid Urea |
|
CF8M |
F316 |
|
CF3 |
F304L |
|
CF3M |
F316L |
[NextPage]
·Size Main Dimensions
|
DN |
150Lb凸面法兰RF |
|
film |
in |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
Do |
|
15 |
1/2 |
108 |
89 |
60.5 |
35 |
11.2 |
4-φ16 |
169 |
100 |
|
20 |
3/4 |
117 |
98 |
69.9 |
43 |
12.7 |
4-φ16 |
192 |
100 |
|
25 |
1 |
127 |
108 |
79.2 |
51 |
14.2 |
4-φ16 |
230 |
120 |
|
32 |
11/4 |
140 |
117 |
89.0 |
63 |
16.0 |
4-φ16 |
246 |
150 |
|
40 |
11/2 |
165 |
127 |
98.6 |
73 |
17.5 |
4-φ16 |
283 |
180 |
|
50 |
2 |
178 |
152 |
120.7 |
92 |
19.0 |
4-φ19 |
323 |
200 |
|
65 |
21/2 |
190 |
178 |
139.7 |
105 |
22.4 |
4-φ19 |
347 |
220 |
|
80 |
3 |
203 |
190 |
152.4 |
127 |
24.0 |
4-φ19 |
383 |
240 |
|
100 |
4 |
229 |
229 |
190.5 |
157 |
24.0 |
8-φ19 |
457 |
250 |
|
125 |
5 |
254 |
254 |
216.0 |
186 |
24.0 |
8-φ22.5 |
632 |
280 |
|
150 |
6 |
267 |
279 |
241.3 |
216 |
25.4 |
8-φ22.5 |
635 |
300 |
|
200 |
8 |
292 |
343 |
298.5 |
270 |
28.4 |
8-φ22.5 |
762 |
350 |
|
250 |
10 |
330 |
406 |
362.0 |
324 |
30.2 |
12-φ25.4 |
892 |
400 |
|
300 |
12 |
356 |
483 |
431.8 |
381 |
32.0 |
12-φ25.4 |
1080 |
450 |
|
350 |
14 |
381 |
533 |
476.3 |
413 |
35.0 |
12-φ29 |
1295 |
500 |
|
400 |
16 |
406 |
597 |
539.8 |
470 |
36.6 |
16-φ29 |
1435 |
550 |
|
450 |
18 |
432 |
635 |
577.9 |
533 |
39.6 |
16-φ32 |
1626 |
600 |
|
500 |
20 |
457 |
698 |
635.0 |
584 |
43.0 |
20-φ32 |
1829 |
600 |
|
600 |
24 |
508 |
813 |
749.3 |
692 |
47.8 |
20-φ35 |
2175 |
650 |
|
650 |
26 |
559 |
786 |
744 5 |
711 |
41.1 |
36-φ22.5 |
2235 |
700 |
|
700 |
28 |
610 |
837 |
795.3 |
762 |
44.5 |
40-φ22.5 |
2310 |
750 |
|
750 |
30 |
610 |
887 |
846 |
813 |
44.5 |
44-φ22.5 |
2695 |
800 |
|
800 |
32 |
660 |
941 |
900 |
864 |
46.0 |
48-φ22.5 |
3708 |
850 |
|
900 |
36 |
711 |
1057 |
1009.7 |
972 |
52.3 |
44-φ25.4 |
3924 |
900 |
|
1000 |
40 |
812 |
1175 |
1120.6 |
1080 |
55.6 |
44-φ28.5 |
4318 |
950 |
|
1050 |
42 |
787 |
1226 |
1171.5 |
1130 |
58.7 |
48-φ28 5 |
- |
1000 |
|
1200 |
48 |
914 |
1392 |
1335 |
1289 |
65 |
44-φ32 |
- |
1000 |
|
1350 |
54 |
- |
1549.4 |
1492.3 |
1441.5 |
71.4 |
56-φ32 |
- |
1200 |
|
1400 |
56 |
- |
1600 |
1543 |
1492.3 |
73.2 |
60-φ32 |
- |
1250 |
|
1500 |
60 |
1067 |
1725.7 |
1662.2 |
1600 |
76.2 |
52-φ35 |
- |
1300 |
[NextPage]
·Size Main Dimensions
|
DN |
300Lb凸面法兰RF |
|
mm |
in |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
Do |
|
15 |
1/2 |
140 |
95 |
66.5 |
35 |
14.2 |
4-φ16 |
169 |
120 |
|
20 |
3/4 |
152 |
117 |
82.5 |
43 |
16.0 |
4-φ19 |
193 |
150 |
|
25 |
1 |
165 |
123 |
89.0 |
51 |
17.5 |
4-φ19 |
230 |
160 |
|
32 |
11/4 |
178 |
133 |
98.5 |
63 |
19.0 |
4-φ19 |
246 |
180 |
|
40 |
11/2 |
190 |
155 |
114.3 |
73 |
20.6 |
4-φ22.5 |
283 |
200 |
|
50 |
2 |
216 |
165 |
127.0 |
92 |
22.4 |
8-φ19 |
330 |
220 |
|
65 |
21/2 |
241 |
190 |
149.4 |
105 |
25.4 |
8-φ22.5 |
368 |
240 |
|
80 |
3 |
283 |
210 |
168.1 |
127 |
28.4 |
8-φ22.5 |
394 |
280 |
|
100 |
4 |
305 |
254 |
200.2 |
157 |
31.8 |
8-φ22.5 |
473 |
300 |
|
125 |
5 |
381 |
279 |
235.0 |
186 |
35.0 |
8-φ22.5 |
660 |
350 |
|
150 |
6 |
403 |
318 |
269.7 |
216 |
36.6 |
12-φ22.5 |
711 |
400 |
|
200 |
8 |
419 |
381 |
330.2 |
270 |
41.2 |
12-φ25.4 |
813 |
450 |
|
250 |
10 |
457 |
444 |
387.4 |
324 |
47.8 |
16-φ28.5 |
1003 |
500 |
|
300 |
12 |
502 |
521 |
450.8 |
381 |
50.8 |
16-φ32 |
1137 |
550 |
|
350 |
14 |
762 |
584 |
514.4 |
413 |
54.0 |
20-φ32 |
1489 |
600 |
|
400 |
16 |
838 |
648 |
571.5 |
470 |
57.2 |
20-φ35 |
1580 |
650 |
|
450 |
18 |
914 |
711 |
628.7 |
533 |
60.5 |
24-φ35 |
2017 |
700 |
|
500 |
20 |
991 |
775 |
685.8 |
584 |
63.5 |
24-φ35 |
2228 |
700 |
|
600 |
24 |
1143 |
914 |
812.8 |
692 |
70.0 |
24-φ41 |
2650 |
750 |
|
650 |
26 |
1245 |
867 |
803.1 |
736 6 |
90.0 |
32-φ35 |
3219 |
800 |
|
700 |
28 |
1346 |
921 |
857.3 |
787.4 |
90.0 |
36-φ35 |
3378 |
850 |
|
750 |
30 |
1397 |
991 |
902.8 |
844.6 |
93.7 |
36-φ38 |
3530 |
900 |
|
800 |
32 |
1524 |
1054 |
978 |
902 |
103 |
32-φ41.2 |
3708 |
1000 |
|
900 |
36 |
1727.2 |
1171.5 |
1089.2 |
1010 |
103 |
32-φ44.5 |
3924 |
1100 |
|
1000 |
40 |
- |
1273 |
1190.8 |
1115 |
115.8 |
40-φ4.5 |
4318 |
1100 |
|
1050 |
42 |
- |
1333.5 |
1244.6 |
1168.4 |
119 |
36-φ47.8 |
- |
1100 |
|
1200 |
48 |
- |
1511.3 |
1416 |
1327.2 |
128.5 |
40-φ50.8 |
- |
1100 |
[NextPage]
·Size Main Dimensions
|
DN |
600Lb凸面法兰RF |
|
mm |
in |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
Do |
|
15 |
1/2 |
165 |
95 |
66.5 |
35 |
14.5 |
4-φ16 |
169 |
160 |
|
20 |
3/4 |
190 |
117 |
82.5 |
43 |
16 |
4-φ19 |
193 |
180 |
|
25 |
1 |
216 |
124 |
89.0 |
51 |
17.5 |
4-φ19 |
230 |
200 |
|
32 |
11/4 |
229 |
133 |
98.5 |
63 |
21 |
4-φ19 |
246 |
220 |
|
40 |
11/2 |
241 |
156 |
114.3 |
73 |
22.5 |
4-φ22.5 |
283 |
240 |
|
50 |
2 |
292 |
165 |
127.0 |
92 |
25.4 |
8-φ19 |
425 |
250 |
|
65 |
21/2 |
330 |
190 |
149.4 |
105 |
28.5 |
8-φ22.5 |
485 |
280 |
|
80 |
3 |
356 |
210 |
168.1 |
127 |
31.8 |
8-φ22.5 |
510 |
300 |
|
100 |
4 |
432 |
273 |
216.0 |
157 |
38.1 |
8-φ25.4 |
610 |
350 |
|
125 |
5 |
508 |
330 |
266.7 |
186 |
44.5 |
8-φ28.5 |
700 |
400 |
|
150 |
6 |
559 |
356 |
292.1 |
216 |
47.8 |
12-φ28.5 |
820 |
450 |
|
200 |
8 |
660 |
419 |
349.3 |
270 |
56 |
12-φ32 |
920 |
500 |
|
250 |
10 |
787 |
508 |
431.8 |
324 |
63.5 |
16-φ35 |
1080 |
550 |
|
300 |
12 |
838 |
559 |
489.0 |
381 |
67 |
20-φ35 |
1220 |
600 |
|
350 |
14 |
889 |
603 |
527.0 |
413 |
70 |
20-φ38 |
1473 |
650 |
|
400 |
16 |
991 |
686 |
603.3 |
470 |
76.5 |
20-φ41 |
1651 |
700 |
|
450 |
18 |
1092 |
743 |
654.0 |
533 |
83 |
20-φ44.5 |
1727 |
750 |
|
500 |
20 |
1194 |
813 |
723.9 |
584 |
89 |
24-φ44.5 |
2019 |
800 |
|
600 |
24 |
1397 |
940 |
838.2 |
692 |
102 |
24-φ51 |
2155 |
850 |
|
650 |
26 |
1447.8 |
889 |
806.5 |
726.9 |
111.3 |
28-φ44.5 |
2300 |
850 |
|
700 |
28 |
1549.4 |
952.5 |
863.6 |
784.4 |
115.8 |
24-φ47.8 |
450 |
900 |
|
750 |
30 |
1651 |
1022.4 |
927.1 |
841.3 |
125.5 |
28-φ50.8 |
2756 |
950 |
|
800 |
32 |
1778 |
1085.9 |
984.3 |
895.4 |
130 |
28-φ53.8 |
2812 |
1000 |
|
900 |
36 |
2028.8 |
1212.9 |
1105 |
1010 |
146 |
28-φ60.5 |
- |
1100 |
|
1000 |
40 |
- |
1320.8 |
121 2.9 |
1111.3 |
158.8 |
32-φ60.5 |
- |
1100 |
[NextPage]
Size Main Dimensions
| DN |
900Lb环槽法兰RTJ |
| mm |
in |
L |
D |
D1 |
D2 |
b |
n-φd |
H |
Do |
| 50 |
2 |
371 |
216 |
165.0 |
95.3 |
46.0 |
8-φ25.4 |
521 |
300 |
| 65 |
21/2 |
422 |
244 |
190.5 |
108.0 |
49.0 |
8-φ28.5 |
584 |
350 |
| 80 |
3 |
384 |
241 |
190.5 |
123.8 |
46.0 |
8-φ25.4 |
648 |
350 |
| 100 |
4 |
460 |
292 |
235.0 |
149.2 |
52.4 |
8-φ32 |
750 |
400 |
| 125 |
5 |
562 |
349 |
279.4 |
181.0 |
58.7 |
8-φ35 |
780 |
400 |
| 150 |
6 |
613 |
381 |
317.5 |
211.1 |
63.6 |
12-φ32 |
800 |
500 |
| 200 |
8 |
740 |
470 |
393.7 |
269.9 |
71.4 |
12-φ38 |
940 |
600 |
| 250 |
10 |
841 |
546 |
469.9 |
323.9 |
77.8 |
16-φ38 |
1130 |
600 |
| 300 |
12 |
968 |
610 |
533.4 |
381.0 |
87.2 |
20-φ38 |
1340 |
650 |
| 350 |
14 |
1038 |
641 |
558.8 |
419.1 |
97.0 |
20-φ41 |
1543 |
700 |
| 400 |
16 |
1140 |
705 |
616 |
419.1 |
97.0 |
20-φ44 |
1600 |
750 |
| 450 |
18 |
1232 |
787 |
685.8 |
466.9 |
111.6 |
20-φ50 |
1830 |
800 |
| 500 |
20 |
1334 |
857 |
749.3 |
466.9 |
116 |
20-φ54 |
2100 |
850 |
| 600 |
24 |
1568 |
1041 |
901.7 |
523.7 |
147.7 |
20-φ66.5 |
2610 |
900 |
| 1500Lb环槽法兰RTJ |
| 50 |
2 |
371 |
216 |
165.1 |
95.3 |
46.0 |
8-φ25.4 |
614 |
300 |
| 65 |
21/2 |
422 |
244 |
190.5 |
108.0 |
49.0 |
8-φ28.5 |
705 |
350 |
| 80 |
3 |
473 |
267 |
203.2 |
136.5 |
557 |
8-φ32 |
705 |
400 |
| 100 |
4 |
549 |
311 |
241.3 |
161.9 |
61.8 |
8-φ35 |
927 |
400 |
| 125 |
5 |
676 |
375 |
292.1 |
193.7 |
81.1 |
8-φ41 |
1120 |
500 |
| 150 |
6 |
711 |
394 |
317.5 |
211.1 |
92.1 |
12-φ38 |
1191 |
600 |
| 200 |
8 |
841.5 |
483 |
393 7 |
269.9 |
103.0 |
12-φ44.5 |
1524 |
650 |
| 250 |
10 |
1000 |
584 |
482.6 |
323.9 |
119.1 |
12-φ51 |
1854 |
700 |
| 300 |
12 |
1146 |
673 |
571.5 |
381.0 |
138.2 |
16-φ54 |
2184 |
700 |
| 350 |
14 |
1276 |
749 |
635.0 |
419.1 |
149.2 |
16-φ60.5 |
2216 |
800 |
| 400 |
16 |
1406 |
825.5 |
704.9 |
419.1 |
154 |
16-φ66.5 |
2210 |
800 |
| 450 |
18 |
1559 |
914 |
774.7 |
466.9 |
172 |
16-φ73 |
|
850 |
| 500 |
20 |
1686 |
984 |
832 |
466.9 |
186 |
16-φ79 |
|
900 |
| 600 |
24 |
1971 |
1168 |
990.6 |
523.7 |
211 |
16-φ92 |
|
950 |
| 2500Lb环槽法兰RTJ |
| 50 |
2 |
454 |
235 |
171.5 |
101.6 |
58.7 |
8-φ28.5 |
523 |
350 |
| 65 |
21/2 |
514 |
267 |
196.9 |
111.1 |
66.7 |
8-φ32 |
631 |
350 |
| 80 |
3 |
584 |
305 |
228.6 |
127.0 |
76.1 |
8-φ35 |
735 |
400 |
| 100 |
4 |
683 |
356 |
273.0 |
157.2 |
87.3 |
8-φ41 |
891 |
500 |
| 125 |
5 |
806 |
419 |
323.9 |
190.5 |
104 6 |
8-φ48 |
1047 |
650 |
| 150 |
6 |
927 |
483 |
368.3 |
228.6 |
120.7 |
8-φ54 |
1144 |
700 |
| 200 |
8 |
1038 |
552 |
438.2 |
279.4 |
141.3 |
12-φ54 |
1392 |
700 |
| 250 |
10 |
1292 |
673 |
539.8 |
342.9 |
182.6 |
12-φ66.5 |
1614 |
800 |
| 300 |
12 |
1444 |
762 |
619.3 |
371.3 |
192 |
12-φ73 |
1900 |
850 |
|
