Top Entry Ball Valve

Top entry ball valves with one-piece body design allow in-line maintenance. Get Best price from top entry trunnion mounted ball valve manufacturers in China.

In-line repair or replacement of valve internal components without dismantling it from the pipe line gives the convenience of in-line repair or replacement.

Quality top entry ball valves are trunnion mounted ball valves with bi-directional sealing with two independent floating seats. The top entry ball valve features a double block and bleed, fire-safe design, and anti blow-out stem.

Top entry ball valves are usually made from cast steel. Relia performs additional NDE tests on the valve body to ensure that there are no casting defects.

Size
2" - 48"
Pressure Rating
Class 150 - 2500
End Connections
Flanged, Welding Ends etc.
top entry ball valve
top entry ball valve top entry trunnion mounted ball valves top entry ball valve drawing

Relia top entry type ball valve in the pipeline is simple and rapid demolition, making maintenance convenient. When the top entry ball valve in the pipeline fails to repair, you do not have to remove the valve from the pipeline; just remove the flange bolts and nuts, the valve cover and stem assembly are removed from the valve body; and then remove the ball and valve seat assembly.

Top-entry ball valves are typically used in process systems where in-line maintenance is preferred over full valve removal. As such, it is common for top entry ball valves to be used in high-pressure applications that require infrequent maintenance, like high-integrity pressure protection system (HIPPS) valves.

Structure:

One Piece Body

Trunnion Mounted Ball Valve

Body Material:

Carbon Steel, Low Temperature Carbon Steel, Stainless Steel, Duplex Steel etc.

Seat Material:

Soft seat or metal seat

Bore Type:

Full bore or reduced bore

Top Entry Ball Valve Drawing

top entry ball valve drawing from top entry ball valve manufacturer

Materil Specifications

No. PART NAME Carbon Steel Low Temp. CS Stainless Steel
10 BODY A216-WCB A352 LCB A351 CF8M
13 BONNET A216-WCB A352 LCB A351 CF8M
15 BONNET O-RING FKM FKM-GLT FKM
16 BONNET BOLT A193 B7 A320 L7 A193 B8M
16A BONNET NUT A194 2H A194 4 A194 8M
17 BONNET GASKET INHIBITED FLEXIBLE GRAPHITE
30 BALL A182 F316
40 SEAT RTFE OR NYLON OR PEEK
41 SEAT HOLDER 316 STAINLESS STEEL
41A SEAT BACK-UP RING 316 STAINLESS STEEL
42 SEAT SPRING INCONEL X750
43 O-RING FKM FKM-GLT FKM
43A O-RING FKM FKM-GLT FKM
45 SPRING HOLIDER 316 STAINLESS STEEL
48A FIRE SAFE SEAL INHIBITED FLEXIBLE GRAPHITE
48B FIRE SAFE SEAL INHIBITED FLEXIBLE GRAPHITE
50 STEM 316 STAINLESS STEEL
51 STEM THRUS BEARING 316 STAINLESS STEEL+PTFE
52 STEM BEARING 316 STAINLESS STEEL+PTFE
53 STEM BUSH 316 STAINLESS STEEL+ENP
54 BUSH INNER O-RING FKM FKM-GLT FKM
55 BUSH INNER O-RING FKM FKM-GLT FKM
62 THRUST BEARING 316 STAINLESS STEEL+PTFE
63 BEARING 316 STAINLESS STEEL+PTFE
70A STEM FIRE SAFE SEAL INHIBITED FLEXIBLE GRAPHITE
72 STEM COVER A105N A350 LF2 A182 F316
73 STEM COVER BOLT A193 B7 A320 L7 A193 B8M
74 STEM COVER NUT A194 2H A194 4 A194 8M
80 T-BAR TUBE A53 GALVANIZED
81 KEY ANNSI 1025
82 STOP PLATE 316 STAINLESS STEEL
83 T-BAR SOCKET A395+BLACK PAINT
84 T-BAR BOLT A193 B8M
85 STOP BOLT A193 B8M
87 WORM GEAR OPERATOR COMMERCIAL
88 GEAR MOUNTING BOLT A193 B7 A320 L7 A193 B8M
89 GEAR MOUNTING NUT A194 2H A194 4 A194 8M
90 NAME PLATE 316 STAINLESS STEEL
92 ANTI-STATIC DEVICE 316 STAINLESS STEEL
92A ANTI-STATIC PLUNGER 316 STAINLESS STEEL
93 DRAIN PLUG 316 STAINLESS STEEL
94 VENT VALVE 316 STAINLESS STEEL
95 INJECTOR 316 STAINLESS STEEL
96 INJECTOR 316 STAINLESS STEEL
100 WIPER SEAL NBR

Dimensions & Weight

top entry ball valve dimensions


Class 150-600 Top Entry Ball Valve Dimensions & Weight, API 6D

Size D L H1 H2 W Weight
inch mm mm mm mm mm kg
1-1/2" 38 241 209 70 400 30
2" 51 292 195 110 400 38
3" 76 356 240 110 750 80
4" 102 432 280 175 1000 150
6" 152 559 305 195 *300 296
8" 203 660 400 280 *300 438
10" 254 787 435 285 *500 601
12" 305 838 440 320 *600 625
14" 337 889 505 340 *600 1230
16" 387 991 590 410 *600 1535
18" 438 1092 700 445 *600 2135
20" 489 1194 775 510 *600 2640
24" 591 1397 840 640 *600 3960

Class 900 Top Entry Ball Valve Dimensions & Weight, API 6D 

Size D L H1 H2 W Weight
inch mm mm mm mm mm kg
1-1/2" 38 305 215 80 400 40
2" 51 368 200 120 750 52
3" 76 381 240 130 1000 87
4" 102 457 280 175 1500 160
6" 152 610 350 220 *300 385
8" 203 737 390 260 *400 560
10" 254 838 480 310 *600 820
12" 305 965 538 410 *600 1125

Class 1500 Top Entry Ball Valve Dimensions & Weight, API 6D  

Size D L H1 H2 W Weight
inch mm mm mm mm mm kg
1-1/2" 38 305 220 90 400 40
2" 51 368 205 120 750 60
3" 76 470 210 125 1000 115
4" 102 546 245 160 *300 194
6" 146 705 335 255 *400 580
8" 194 832 427 340 *500 752
10" 241 991 502 381 *600 1195
12" 289 1130 533 438 *600 2170

Online Inquiry

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8613634229454
Email
info@reliavalve.com
Phone
0086-577-86373155
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