Stop guesswork and specification errors. Get precise ANSI/ASME B16.5 & B16.34 dimensions for flange ball valves — with quality assured and lead times 40% faster than industry average.
✓ Full dimensional data for 150# to 1500# classes ✓ Custom face-to-face & bore options ✓ Free CAD & sample verification
🔴 Pain Point 1: Mismatched flange bolt patterns — 62% of field installation delays are due to incorrect drilling per ASME B16.5. A 2" Class 300 flange has a different bolt circle than a 2" Class 600.
🔴 Pain Point 2: Face-to-face discrepancies across manufacturers — API 608 vs. ISO 17292 standards vary by up to 12mm, causing actuator mounting failures and costly rework.
🔴 Pain Point 3: Hidden cost of 'standard' dimensions — Many suppliers charge extra for non-stock sizes. Our data shows 38% of buyers overpay by 15-22% for bespoke dimensions from traditional vendors.
🔴 Pain Point 4: Quality vs. price trap — A valve with correct paperwork but incorrect wall thickness can fail within 18 months. You need certified dimensional compliance, not just a drawing.
🔴 Pain Point 5: Long lead times for custom flange ball valves — Typical 12-16 weeks from European/US mills. Your project can't wait.
Result: Procurement and engineering teams waste thousands of dollars and weeks of schedule on avoidable dimensional errors. You need a partner who delivers exact flange type ball valve dimensions — every time.
Ningjin Thriveon Valve Co., Ltd. has supplied over 17,000 flange ball valves to 28 countries, with dimensional rejection rate below 0.3%. Here's how we solve your pain points:
Every valve is laser-verified against ASME B16.5, B16.34, API 608, and ISO 17292. We provide a dimensional certificate with each shipment.
Need a specific face-to-face for a retrofitted line? We offer full custom machining with 2-week turnaround for non-standard flange type ball valve dimensions.
Get a free 3D model before production. Validate bolt patterns, end-to-end, and flange thickness against your piping isometric.
Direct-from-factory production with 18 CNC machining centers cuts lead time to 4-8 weeks (vs. 12-16 weeks industry standard). Express samples in 7 days.
WCB, CF8M, CF3, duplex, super duplex — all with EN 10204 3.1 certification. Flanges are ultrasonic-tested to ASTM A388.
Eliminate the "China quality" risk. We hold ISO 9001, CE/PED, and API 607 fire-safe certifications. Our pricing is 30-40% below US/EU mills, with identical quality.
*Full range from 1/2" to 24" available. Contact us for Class 600, 900, 1500 dimensions.
| Nominal Size (inch) | Class | Face-to-Face (mm) | Bolt Circle Dia. (mm) | Flange O.D. (mm) | Number of Bolts | Bore Diameter (mm) |
|---|---|---|---|---|---|---|
| 2" | 150# | 178 | 121 | 152 | 4 | 51 |
| 3" | 150# | 203 | 152 | 190 | 4 | 76 |
| 4" | 150# | 229 | 191 | 229 | 8 | 102 |
| 6" | 150# | 292 | 242 | 279 | 8 | 152 |
| 8" | 150# | 350 | 298 | 343 | 8 | 203 |
| 2" | 300# | 216 | 127 | 165 | 8 | 51 |
| 3" | 300# | 254 | 168 | 210 | 8 | 76 |
| 4" | 300# | 305 | 200 | 254 | 8 | 102 |
| 6" | 300# | 403 | 254 | 318 | 12 | 152 |
| 8" | 300# | 502 | 318 | 381 | 12 | 203 |
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📌 Need a specific size or class? Request our full dimensional catalog — download free PDF.
"We switched to Thriveon for our 6" Class 300 flange ball valves. Their dimensional accuracy saved us 3 days of rework per valve. The CE certification documentation was flawless — our QA team approved the first batch without a single discrepancy. Cost savings of 34% compared to our previous European supplier."
— David M., Senior Piping Engineer, Houston, TX"Ordered 48 pcs of 4" flange ball valves with custom face-to-face for a skid project. Thriveon delivered in 5 weeks — 6 weeks faster than our usual supplier. The dimensional report matched our CAD exactly. We have now approved them as a preferred vendor."
Per ASME B16.5, a 2" Class 150 flange ball valve has a face-to-face of 178 mm (per API 608), bolt circle diameter of 121 mm, flange O.D. of 152 mm, 4 bolt holes, and a bore of approximately 51 mm. Thriveon supplies exact dimensions with a certificate of compliance.
Yes. We offer custom machining for face-to-face, end-to-end, and bore dimensions. Minimum order quantity for custom dimensions is 10 units. Lead time is typically 3-4 weeks after drawing approval.
We provide a free dimensional drawing with bolt circle and hole coordinates in DXF or PDF format upon request. You can also use our online tool (coming soon) or simply email us at info@thriveonvalve.com for instant verification.
Absolutely. Our standard range is designed to API 608 (fire-safe design) and ISO 17292 for dimensional and performance requirements. We also offer full-bore and reduced-bore options per API 6D.
For standard dimensions, 6-8 weeks from order confirmation. For urgent requirements, we can expedite to 4 weeks with an additional 10% rush fee. Stock items ( up to 8") can ship within 7-10 days.
Yes. For first-time buyers, we offer up to 2 free samples (valve size ≤ 4") with signed NDA. You only pay shipping. Request a sample via our contact page.
Every valve undergoes 100% dimensional inspection using a coordinate measuring machine (CMM) and go/no-go gauges. We maintain an ISO 9001 quality system with full traceability from raw material to final assembly.
"Thriveon's dimension chart was the most accurate I've ever used. We cross-checked with our ASME B16.5 standard — exactly matching. Their 4" Class 600 valve fit perfectly into our skid. Highly recommend for those who value precision."
"We struggled with inconsistent flange dimensions from Chinese suppliers for years. Thriveon changed that. Every valve we ordered (6 pcs of 8" Class 300) had identical bolt circles and face-to-face. Finally, a reliable source for flange type ball valve dimensions."
"I needed a custom face-to-face for a retrofit project. Thriveon's engineering team responded within 4 hours with a CAD drawing that matched our existing actuator flange. Delivery was 3 weeks ahead of schedule. Excellent service."
"We switched from a major US brand to Thriveon for our 2"-6" flange ball valves. Cost reduction of 37%, but more importantly, the dimensional quality is consistent. No more rejected valves. This is how China supply chain should work."
"Thriveon provided full EN 10204 3.1 material certificates and a detailed dimensional report for each valve. Our QA team was impressed. The 12" Class 150 valves performed flawlessly in our water treatment plant."
Stop risking costly dimensional mismatches. Send us your requirements and we'll respond with:
📧 info@thriveonvalve.com | 🌐 www.thriveonvalves.com | 🏭 South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei, China
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+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
