Stop guesswork and prevent costly mismatches. Our swing type check valves are built to ANSI/API standards with verified dimensions — helping purchasing managers eliminate rework, reduce downtime, and ensure leak-free operation across water, oil, and gas applications.
Every year, procurement teams lose thousands of dollars because of dimension mismatches. Here are the three most common pitfalls:
You order a 12″ valve thinking it matches your existing piping, but the face-to-face dimension is off by just 5 mm. Result: re-piping costs, project delays, and angry stakeholders.
Flange drilling templates vary by standard (ANSI 150 vs. DIN PN16). A mismatch means bolts don't align — leading to emergency fixes and loss of pressure integrity.
Engineering teams discover the valve dimensions don't fit the skid layout after the valve arrives. You waste 2–3 weeks sourcing a replacement — and your production line stops.
🔍 Don't leave your pipeline to chance. Check our verified dimensional tables below — or ask our engineers to match your exact piping spec.
Every valve we ship comes with a certified dimensional report. Our casting, machining, and assembly process ensures compliance with ANSI B16.10, API 6D, and ASME B16.5 standards.
We cast, machine, and assemble in-house — giving you full control over dimensional tolerances. Batch after batch, your valves will fit the same piping layout.
Every swing check valve is checked for face-to-face length, flange OD, bolt circle diameter, and disc travel arc. We provide a signed inspection report with every order.
Have a non-standard flange drilling or a special face-to-face length? Our engineering team (10+ years experience) can modify the design to fit your existing infrastructure.
Standard sizes ship within 7–15 days. Custom dimension valves take just 20–25 days — 40% faster than industry average.
📐 Need a specific dimension? Submit your piping specs and get a matched valve recommendation in 4 hours.
Below are the standard dimensions for our flanged swing check valves. All measurements are in inches unless noted. Custom sizes available — contact our team.
| Nominal Size (in) | Face-to-Face Length (mm) | Flange OD (mm) | Bolt Circle Diameter (mm) | Bolt Hole Diameter (mm) | Number of Bolts | Disc Diameter (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 2" | 178 | 152 | 120.7 | 19 | 4 | 89 | 6.5 |
| 2½" | 190 | 178 | 139.7 | 19 | 4 | 102 | 9.2 |
| 3" | 203 | 190 | 152.4 | 19 | 4 | 114 | 11.8 |
| 4" | 229 | 229 | 190.5 | 19 | 8 | 140 | 17.5 |
| 5" | 254 | 254 | 215.9 | 22 | 8 | 165 | 24.3 |
| 6" | 267 | 279 | 241.3 | 22 | 8 | 190 | 31.2 |
| 8" | 292 | 343 | 298.5 | 22 | 8 | 241 | 49.6 |
| 10" | 330 | 406 | 361.9 | 25 | 12 | 292 | 72.8 |
| 12" | 356 | 483 | 431.8 | 25 | 12 | 343 | 105.4 |
swing type check valve valve check swing swing check valve function
📏 Note: Dimensions conform to ANSI B16.10 / ASME B16.5 for Class 150 flanged ends. For Class 300, API 6D, or custom dimensions — request our full dimensional catalog (PDF).
📄 Download the complete swing type check valve dimensions PDF — includes 3D drawings, weights, and installation tips. Get it free now →
A standard 6″ ANSI 150 swing check valve has a face-to-face length of 267 mm, flange OD of 279 mm, bolt circle diameter of 241.3 mm, 8 bolt holes of 22 mm diameter, and weighs approximately 31.2 kg. Download our full dimension chart for all sizes.
Place the valve on a flat surface. Measure from the outer face of the inlet flange to the outer face of the outlet flange using a rigid tape or caliper. Ensure the disc is fully closed for accurate reading. This dimension is critical for piping alignment.
Yes. We regularly produce valves with custom bolt circle diameters, hole sizes, and number of bolts to match existing piping. Just send us your flange template drawing or a photo of the mating flange — we'll match it exactly. Lead time for custom drilling is 20–25 days.
Swing check valves have a longer face-to-face dimension because the disc swings on a hinge pin inside the body. Wafer check valves are shorter and fit between two flanges. For example, a 6″ swing check is 267 mm face-to-face, while a wafer check of the same size is typically 140 mm. Always verify your piping space before selecting.
For standard dimensions, no minimum — we accept single-piece orders. For custom dimensions (special face-to-face, flange drilling, or materials), MOQ is typically 5–10 pieces depending on complexity. We also offer sample orders for qualification.
Most US projects use ANSI B16.10 for face-to-face and ASME B16.5 for flange dimensions. If you're working with European designs, DIN EN 558 and DIN EN 1092 are common. Not sure? Our engineers can help you identify the correct standard from a photo or drawing.
Shipping costs depend on size, weight, and quantity. A single 6″ valve weighs ~31 kg and ships via sea freight (LCL) or air. We offer competitive freight rates with major carriers. Contact us with your port or zip code for a real-time quote.
Yes. For qualified B2B buyers, we offer 1 free sample per size (standard dimension) with freight collect. You pay only shipping. This allows you to verify fit, finish, and quality before committing to a bulk order.
"I ordered 12 pieces of 4″ swing check valves for a skid project. The dimensions matched the drawing perfectly. The bolt holes aligned without any adjustment. That's rare with overseas suppliers. Will order again."
"We needed a 10″ valve with a special 305 mm face-to-face length for a retrofit. Thriveon's team designed, cast, and shipped in 23 days. The valve fit perfectly. Great communication throughout."
"We compared pricing for 8″ swing check valves. Thriveon offered equal quality at 40% lower cost. The dimensional report gave us confidence. Valves arrived in 12 days. Excellent experience."
"We specified ANSI 300 class valves with NACE compliance. Thriveon delivered with full documentation, including dimensional certificates. Aramco inspector approved on first check. Highly recommend."
"I had a question about bolt circle tolerance. Their engineer replied within 2 hours with a detailed answer and a diagram. That level of support is hard to find. Valves arrived on time and fit perfectly."
You need a valve that fits your piping, meets your pressure requirements, and arrives on time. At Thriveon, we deliver exactly that — with full dimensional verification, competitive pricing, and fast delivery.
⏰ Limited-time offer: Free express shipping for the first 5 orders over $5,000 this month. Secure your slot now.
🚫 No pressure. No spam. Just the technical data you need to make an informed decision.
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Call us on:
+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
