Through type, integer body
PTFE sleeved replacing seat
High CV value, flow capacity strong
No cavity channel, flow resistance small
Structure improve on API
Double seal, adjusting redundancy structure
One piece proof out plug
Anti-static and fire durable structure
Flanged ends
| Design Spec. | Face to Face | Flange End | Test & Check | Marking | Supply |
|---|---|---|---|---|---|
| API 599 | ASME B16.10 | ASME B16.5 | API 598 | MSS SP-25 | API 599 |
| DIN 3352 / BS 5353 | DIN 3202 | DIN 2501 | DIN 3230 | DIN 3211 | DIN 3352 |
| Part Name | A216-WCB | A352-LCB | A351-CF8 | A351-CF8M | A351-CF3 | A351-CF3M |
|---|---|---|---|---|---|---|
| Body | A216-WCB | A352-LCB | A351-CF8 | A351-CF8M | A351-CF3 | A351-CF3M |
| Plug | A351-CF8 | A351-CF8 | A351-CF8M | A351-CF3 | A351-CF3 | A351-CF3M |
| Seat | PTFE, RPTFE | PTFE, RPTFE | PTFE, RPTFE | PTFE, RPTFE | PTFE, RPTFE | PTFE, RPTFE |
| Seal Ring | Flexible Graphite / FPM (all materials) | |||||
| Bolt | A193-B7 | A193-B7 | A193-B8M | A193-B8M | A193-B8M | A193-B8M |
| Suitable Temp | -29~200°C | -46~200°C | -40~200°C | -40~200°C | -40~200°C | -40~200°C |
| Suitable Medium | Water, Oil, Gas | Propane | Nitric Acid | Nitric Acid | Acetic Acid | Acetic Acid |
X43F Series – Class 150LB
| NPS (in) | DN (mm) | L | D | D1 | D2 | b | Z-d | H | W | Do | WT (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 15 | 108 | 89 | 35 | 60.5 | 9 | 4-Φ15 | 110 | 175 | — | 6.5 |
| 3/4 | 20 | 117 | 98 | 43 | 70 | 9 | 4-Φ15 | 115 | 175 | — | 7.0 |
| 1 | 25 | 127 | 108 | 51 | 79.5 | 10 | 4-Φ15 | 115 | 175 | — | 8.0 |
| 1-1/4 | 32 | 140 | 117 | 64 | 89 | 11 | 4-Φ15 | 135 | 220 | — | 11 |
| 1-1/2 | 40 | 165 | 127 | 73 | 98.5 | 13 | 4-Φ15 | 140 | 280 | — | 15 |
| 2 | 50 | 178 | 152 | 92 | 120.5 | 14 | 4-Φ19 | 150 | 305 | — | 18 |
| 2-1/2 | 65 | 190 | 178 | 105 | 139.5 | 16 | 4-Φ19 | 165 | 350 | — | 26 |
| 3 | 80 | 203 | 190 | 127 | 152.5 | 17 | 4-Φ19 | 180 | 405 | — | 36 |
| 4 | 100 | 229 | 229 | 157 | 190.5 | 22 | 4-Φ19 | 380 | — | 300 | 44 |
| 6 | 150 | 267 | 279 | 216 | 241.5 | 24 | 8-Φ22 | 520 | — | 320 | 60 |
| 8 | 200 | 292 | 343 | 270 | 298.5 | 27 | 8-Φ22 | 580 | — | 320 | 81 |
| 10 | 250 | 330 | 406 | 324 | 362 | 29 | 12-Φ25 | 620 | — | 350 | 147 |
| 12 | 300 | 356 | 483 | 381 | 432 | 30 | 12-Φ25 | 680 | — | 380 | 217 |
X43F Series – Class 300LB
| NPS (in) | DN (mm) | L | D | D1 | D2 | b | Z-d | H | W | Do | WT (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 15 | 140 | 95 | 35 | 66.5 | 13 | 4-Φ15 | 110 | 175 | — | 7.0 |
| 3/4 | 20 | 152 | 117 | 43 | 82.5 | 14 | 4-Φ19 | 115 | 175 | — | 7.5 |
| 1 | 25 | 165 | 124 | 51 | 89 | 16 | 4-Φ19 | 115 | 175 | — | 8.5 |
| 1-1/4 | 32 | 178 | 133 | 64 | 98.5 | 17 | 4-Φ19 | 135 | 220 | — | 13 |
| 1-1/2 | 40 | 190 | 156 | 73 | 114.5 | 19 | 4-Φ22 | 140 | 280 | — | 17 |
| 2 | 50 | 216 | 165 | 92 | 127 | 21 | 8-Φ19 | 150 | 305 | — | 22 |
| 2-1/2 | 65 | 241 | 190 | 105 | 149 | 24 | 8-Φ22 | 165 | 350 | — | 29 |
| 3 | 80 | 283 | 210 | 127 | 168.5 | 27 | 8-Φ22 | 180 | 405 | 300 | 41 |
| 4 | 100 | 305 | 254 | 157 | 200 | 30 | 8-Φ22 | 380 | — | 320 | 50 |
| 6 | 150 | 403 | 318 | 216 | 270 | 35 | 12-Φ22 | 520 | — | 320 | 68 |
| 8 | 200 | 419 | 381 | 270 | 330 | 40 | 12-Φ25 | 580 | — | 350 | 87 |
| 10 | 250 | 445 | 324 | 387.5 | 46 | 16-Φ29 | 620 | — | 350 | 155 | |
| 12 | 300 | 502 | 521 | 381 | 451 | 49 | 16-Φ32 | 680 | — | 380 | 230 |
X43F Series – Class 600LB
| NPS (in) | DN (mm) | L | D | D1 | D2 | b | Z-d | H | W | Do | WT (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 15 | 165 | 95 | 66.5 | 35 | 15 | 4-Φ15 | 110 | 175 | — | 9 |
| 3/4 | 20 | 190 | 118 | 82.5 | 43 | 16 | 4-Φ19 | 115 | 175 | — | 12 |
| 1 | 25 | 216 | 124 | 89 | 51 | 18 | 4-Φ19 | 115 | 175 | — | 14 |
| 1-1/4 | 32 | 229 | 133 | 98.5 | 64 | 21 | 4-Φ19 | 135 | 220 | — | 18 |
| 1-1/2 | 40 | 241 | 156 | 114.5 | 73 | 23 | 4-Φ22 | 140 | 280 | — | 21 |
| 2 | 50 | 292 | 165 | 127 | 92 | 26 | 8-Φ19 | 150 | 305 | — | 27 |
| 2-1/2 | 65 | 330 | 190 | 149 | 100 | 29 | 8-Φ22 | 165 | 380 | — | 34 |
| 3 | 80 | 356 | 210 | 168 | 127 | 32 | 8-Φ22 | 180 | 450 | — | 46 |
| 4 | 100 | 432 | 273 | 216 | 157 | 38 | 8-Φ25 | 380 | — | 300 | 58 |
| 6 | 150 | 559 | 356 | 292 | 216 | 48 | 12-Φ29 | 520 | — | 320 | 78 |
| 8 | 200 | 660 | 419 | 349 | 270 | 56 | 12-Φ32 | 580 | — | 320 | 105 |
Step 1: Order and Design
According to customer requirements, standards, pressure class, material, and face-to-face dimensions, the technical team confirms the production drawings and process plan for the ansi plug valve. At this stage, key details such as sealing structure, flange standard, port type, and operating mode are checked carefully before production begins.
Step 2: Forging & Casting
The main body, plug, bonnet, and other pressure-bearing parts of the ansi plug valve are produced by casting or forging according to the material specification. Common materials include carbon steel, stainless steel, and alloy steel. After forming, the raw parts are inspected to ensure there are no defects such as cracks, shrinkage, or porosity.
Step 3: Machining
All major components are machined with precision equipment, including the valve body cavity, flange ends, plug surface, stem hole, and sealing areas. During this stage, the dimensional accuracy and surface finish of the ansi plug valve are strictly controlled to ensure smooth operation and reliable sealing performance.
Step 4: Assembly
After machining and cleaning, all parts are assembled in sequence, including plug, stem, bearings, seals, gasket, bonnet, and actuator or handwheel. During assembly of the ansi plug valve, technicians adjust the matching tolerance and operating torque to make sure the valve opens and closes smoothly.
Step 5: Testing & Quality Assurance
Each ansi plug valve undergoes strict inspection and testing before delivery, such as shell test, seat sealing test, torque test, and dimensional check. Quality control personnel also verify material certificates, machining quality, and assembly condition to ensure the valve meets ANSI and customer requirements.
Step 6: Painting and Finishing
After final inspection, the valve surface is cleaned, painted, and marked. The finished valve is then packed with protective covers on both ends to prevent damage during transportation. Nameplate, heat number, pressure rating, and other required markings are added before shipment.
Suitable for pipelines in various operating conditions across industries such as petroleum, chemicals, pharmaceuticals, fertilizers, and power generation
These valves are widely used in:
Oil and Gas
Chemical Processing
Power Plants
Water Treatment
Metallurgy and Mining
Agriculture and Irrigation
Superior Quality
Our valves are manufactured using premium materials and undergo rigorous quality testing to ensure reliable performance in demanding industrial applications.
Advanced Technology
Equipped with state-of-the-art CNC machining centers and precision manufacturing equipment, we deliver valves with exceptional accuracy and consistency.
Competitive Pricing
Through optimized manufacturing processes and bulk material procurement, we offer high-quality valves at competitive prices without compromising on quality.
Expert Support
Our experienced technical team provides comprehensive support from product selection to after-sales service, ensuring optimal valve performance for your specific application.
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