Master flange ball valve dimensions to eliminate fitment issues, reduce procurement lead times by 40%, and ensure absolute pipeline integrity. This guide is engineered for Technical Directors and Procurement Managers who demand precision in every Class 150, 300, and 600 application.
By leveraging Ningjin Thriveon Valve Co., Ltd.’s 10+ years of manufacturing expertise, you gain access to dimensional data that aligns perfectly with ASME B16.10, API 6D, and ASME B16.5 standards.
Includes face-to-face dimensions, bolting patterns, and 3D models.
In my 15 years as a valve engineer, I’ve seen projects hemorrhage budget due to one overlooked detail: incorrect flange ball valve dimensions. The consequences are severe and immediate.
The Root Cause? A lack of standardized dimensional data from suppliers who don’t adhere strictly to API 6D or ASME B16.10.
At Thriveon, we transform your procurement process from a gamble into a science. Our lead engineer, David Chen, oversees every production batch to ensure that every flange ball valve dimension meets your exact specifications before it leaves our factory in Northern China.
For a recent US Gulf Coast project, we supplied 500 Class 300, 6-inch flanged ball valves. Our dimensional accuracy allowed for a 0% fitment rejection rate, helping our client save over $120,000 in construction delays.
Below is a snapshot of our standard flange ball valve size chart. Always verify with our engineering team for your specific pressure class and material.
| Size (NPS) | Class | Face-to-Face (mm) | Flange Dia (mm) | Bolting (# x Dia) | Full Bore (mm) |
|---|---|---|---|---|---|
| 2" | 150 | 178 | 152 | 4 x 5/8" | 51 |
| 3" | 300 | 305 | 210 | 8 x 3/4" | 76 |
| 4" | 300 | 305 | 229 | 8 x 3/4" | 102 |
| 6" | 150 | 394 | 279 | 8 x 7/8" | 152 |
| 6" | 600 | 508 | 330 | 12 x 7/8" | 152 |
| 8" | 150 | 502 | 343 | 8 x 7/8" | 203 |
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*Full catalog includes Class 150, 300, 600, 900, and custom dimensions. Request the complete flange ball valve dimensions PDF below.
Our commitment to precise flange ball valve dimensions has made us a preferred partner for Fortune 500 companies and EPC contractors worldwide.
"Thriveon's flange ball valve dimensions were spot on. Zero fitting issues across 200 valves for our Texas pipeline. Their understanding of ASME B16.10 is world-class."
- Michael T., Technical Director, US Oil & Gas Co.
"We were struggling with inconsistent face-to-face dimensions from our previous supplier. Thriveon provided a flawless fit and reduced our installation time by 30%."
- Sarah L., Project Manager, Canadian Water Treatment Corp.
Standard flange ball valve dimensions for Class 150 follow ASME B16.10. For a 2" valve, the face-to-face is 178mm, flange diameter is 152mm, and bolting is 4 x 5/8". Always check the specific standard (API 6D vs. ASME B16.10) as they may vary slightly.
Measure from the outer face of one flange to the outer face of the opposite flange. Ensure the valve is in the fully closed position for accurate measurement. This is the most critical dimension for pipeline fitment.
Full bore (full port) valves have a ball opening equal to the inner diameter of the pipe, minimizing friction loss. Reduced bore (reduced port) valves have a smaller ball opening, which restricts flow but lowers torque and cost. The external flange dimensions remain identical, but the internal bore changes.
While our focus is on flanged ends (ASME B16.5), we can manufacture threaded ends (NPT/BSP) or combination flanged/threaded ends for special applications. Contact our sales team for your specific needs.
For a 6" Class 300 flanged valve per ASME B16.5, the bolting pattern consists of 12 bolts with a 7/8" diameter on a bolt circle diameter of 269.9 mm.
Absolutely. We specialize in OEM/ODM custom dimensions. If you have an existing pipeline with non-standard lengths, our engineering team can replicate or adjust the flange ball valve dimensions to fit perfectly. Minimum order quantities may apply.
Every valve undergoes a rigorous inspection process, including dimensional inspection using CMM (Coordinate Measuring Machine), hydrostatic shell test, and seat leakage test per API 598. We provide a detailed dimensional report with every shipment.
We can send you free samples (for qualified projects) or detailed 2D/3D CAD drawings for approval. We encourage clients to perform a first-article inspection before mass production.
Get your project the precision it deserves. We provide free dimensional study reports and samples to ensure 100% compatibility before you commit.
Get a Free Dimensional Inspection Report and 10% discount on your first order of 50+ units. Offer valid for the next 30 days.
100% dimensional accuracy or we replace the valves at our cost. No questions asked.
"The dimensional consistency of Thriveon's flange ball valves is unmatched. We've reduced our inventory carrying costs by 25% because we trust their specs."
- John D., Supply Chain Manager, Saudi Arabia Chemical Plant
"We sourced 150 Class 600 valves for a critical offshore platform. Every single flange bolting pattern matched perfectly. Highly recommend."
- Priya K., Offshore Project Lead, Mumbai, India
"Their team helped us redesign a custom face-to-face dimension for a legacy pipeline in Italy. Fast, precise, and cost-effective."
- Marco V., Plant Engineer, Milan, Italy
David Chen
Senior Valve Engineer & Global Supply Chain Consultant
With over 15 years in the industrial valve industry, David has consulted on major oil & gas, petrochemical, and water treatment projects across the US, Europe, and the Middle East. As a lead engineer at Ningjin Thriveon Valve Co., Ltd., he specializes in optimizing flange ball valve dimensions for complex international specifications.
David is a recognized expert in API 6D, ASME B16.34, and ISO 17292 standards. He is dedicated to bridging the gap between cost-effective manufacturing in China and the rigorous quality demands of global buyers.
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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 
