Stop guessing on flange drilling, stem height, and face-to-face tolerances. Access precise data for API 600, ASME B16.10, and custom OEM specifications tailored for US and global industrial systems.
Get Your Free Dimensional Chart & Quote Responds within 24 hoursgate valve sizes gate valve 12 inch large gate valve
Every purchasing manager and engineer knows the feeling: the valve arrives, but the flange drilling is off by 2 mm, or the face-to-face distance is 1 inch too long. The entire line stops. Here are the most common dimensional pitfalls that drain your budget and timeline.
Trusted by North American OEMs and EPC contractors for precision-machined gate valves that fit perfectly on the first try.
Over 30,000 sqm dedicated to casting, machining, and assembly. In-house pattern making ensures consistent core dimensions for every NPS.
Every valve undergoes 100% inspection using CNAS-calibrated CMMs. We provide a Certificate of Dimensional Conformance with every shipment.
Need a custom face-to-face, special drilling pattern, or extended stem for your actuator? Our engineering team adapts standard patterns to your P&ID.
Standard sizes (NPS 2"-12", Class 150/300) ship in 15-25 days. DDP shipping available to major US ports including Houston and Los Angeles.
| Size (NPS) | Pressure Class | Face-to-Face (L) mm | Flange Dia. (D) mm | Stem Dia. mm | Approx. Weight (kg) |
|---|---|---|---|---|---|
| 2" | 150 | 178 | 152 | 19 | 45 |
| 2" | 300 | 216 | 165 | 19 | 68 |
| 4" | 150 | 229 | 229 | 25 | 95 |
| 6" | 150 | 267 | 279 | 32 | 145 |
| 8" | 150 | 292 | 343 | 38 | 230 |
| 10" | 150 | 330 | 406 | 41 | 320 |
| 12" | 150 | 356 | 483 | 44 | 430 |
*Dimensions for reference. Always consult certified drawing for final tolerances. Custom dimensions available for OEM projects.
For a standard Class 150 RF flanged gate valve per ASME B16.10, face-to-face dimensions range from 178 mm (NPS 2) to 508 mm (NPS 24). Flange diameters follow ASME B16.5. For exact values, refer to our table above or contact us for a complete chart.
Measure from the outer face of one flange to the outer face of the opposite flange, with the valve in the fully closed position. Ensure the measurement is taken parallel to the valve axis. For accuracy, use a calibrated tape or rigid rule across the flange faces.
Yes, we supply both. ASME B16.10 is the standard for our US-market valves. We also produce to BS EN 558 (Series 1, 2, 3) for European and Middle Eastern projects. Be sure to specify your standard when requesting a quote.
For a standard API 600 Class 150 NPS 10 gate valve, the stem diameter is typically 41 mm (1.61 inches). Higher pressure classes (300, 600) will have a larger stem diameter to withstand higher operating torques.
Absolutely. We specialize in OEM/ODM. Our team can modify face-to-face, flange drilling pattern (including custom bolt holes), stem length, and material grades to match your specific assembly requirements. Lead time for custom dimensions is typically 25-35 days.
For standard stock sizes (NPS 2-12, Class 150/300), we offer flexible MOQs starting from 5-10 pieces per size. For non-standard dimensions or special materials, MOQ is typically 20-50 pieces. Contact us to discuss your project volume.
"We needed 16" gate valves for a mining expansion. The dimensional report was flawless and the valves passed pressure test on the first attempt. Excellent work."
"Thriveon provided OEM gate valves with a custom face-to-face length for a unique manifold design. The machining accuracy was exceptional. Will order again."
"Fast delivery and perfect dimensions. The 6" Class 300 gate valves arrived within 18 days and bolted straight onto our existing piping. No rework needed."
With over 15 years in fluid control systems, Charles specializes in ASME/API standards and cross-border industrial procurement. He previously served as a technical advisor for a Tier 1 EPC contractor in Houston, Texas, where he standardized valve specifications for multi-million dollar projects. "Standardizing dimensions saves industries millions. Let's make sure your specs are perfectly matched."
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+86-311-86935302
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