Stop struggling with mismatched piping specs. Get standard and custom flanged swing check valve dimensions backed by factory-direct precision — delivered in 14–28 days.
⏱️ Reply within 4 hours · Free technical review for every inquiry
Why Getting Flanged Swing Check Valve Dimensions Right Is a $12,000+ Risk
Every year, procurement and engineering teams lose time and budget because of incorrect or incomplete dimension data. Here are the most common pain points we hear from buyers like you:
🔴 Mismatched flange bolt holes — A 1 mm offset on bolt circle diameter causes field rework costing up to $2,800 per valve.
🔴 Face-to-face length errors — Wrong end-to-end dimensions mean the valve won’t fit between existing flanges, delaying installation by 2–5 days.
🔴 Disc interference in the pipe — Swing check discs need accurate hinge radius; over- or under-size leads to chatter, backflow, or seat damage.
🔴 Inconsistent wall thickness — ASME B16.34 compliance is non-negotiable; wall thickness variations can cause catastrophic failure at 300 PSI.
You need reliable, standardised dimension data from a supplier who understands both ANSI/ASME and ISO standards — and who can customise when your line requires it.
Thriveon’s Precision Flanged Swing Check Valves: Built to Your Spec, Backed by Factory Engineering
At Ningjin Thriveon Valve Co., Ltd., we produce flanged swing check valves that meet ANSI B16.5, ASME B16.34, and ISO 5752 face-to-face standards. Whether you need Class 150, Class 300, or custom dimensions, our 10+ year engineering team ensures every valve matches your piping layout.
⚙️ 100% ASME-Compliant Dimensions
Wall thickness, flange drilling, and face-to-face lengths verified per ASME B16.5 and B16.34. Full traceability reports included.
📐 Custom Face-to-Face & Bore Sizes
Need a special end-to-end length or reduced bore? We offer OEM/ODM customisation with fast engineering turnaround.
🚀 14–28 Day Lead Time
Standard dimensions ship in 14 days; custom orders in 28 days. No ocean freight delays — we manage logistics to the US, Saudi Arabia, South Africa, and Italy.
🔬 Full Material Certification
Cast steel, stainless steel (304/316), ductile iron — with mill certificates and NDT reports available per request.
🛡️ Guaranteed Interchangeability
Our flange drillings match ANSI B16.5 Class 150 and 300 bolt patterns. Drop-in replacement for major brands without re-piping.
🌍 Global Compliance
CE, ISO 9001, and RoHS certified. We also support CCC, FDA, and other regional standards when required.
✅ ISO 9001:2015✅ CE Marked✅ RoHS Compliant✅ ASME B16.5✅ ASME B16.34✅ ISO 5752
Flanged Swing Check Valve Dimensions — Standard Range (ANSI Class 150)
Below are the most commonly requested dimensions. All values are in inches (mm in parentheses) unless noted. Contact us for Class 300, 600, or custom sizes.
⚠️ Note: L dimensions per ASME B16.10 / ISO 5752 short pattern. For long pattern or Class 300, request our full datasheet. Custom sizes up to 24″ available.
Where Our Dimensions Make the Difference
🏭 Texas Petrochemical Plant Replaced 24 pcs of 6″ Class 150 swing check valves. Thriveon matched the existing face-to-face (14″) exactly — zero piping modification. Customer saved $34,000 in retrofit costs.
🌊 Miami Water Treatment Facility Required 8″ ductile iron check valves with 316 SS trim. Our custom bore dimensions reduced head loss by 18% compared to the previous supplier’s standard offering.
🛢️ Saudi Arabia Oil & Gas Supplied 12″ Class 300 flanged swing check valves with NACE MR0175 compliance. All flange dimensions verified by third-party inspection — zero non-conformities.
🏗️ Italian HVAC Contractor Ordered 40 pcs of 2½″ and 3″ valves. Our 14-day lead time and precise bolt-hole alignment allowed them to complete the project 10 days ahead of schedule.
🌍 Trusted by buyers in:USA · Saudi Arabia · South Africa · Italy · UAE · UK · Canada1,800+ valves shipped in 2025
What Engineering & Procurement Leaders Say
John McAllister
Sr. Piping Engineer, KBR Inc. (Houston)
“The dimension data on Thriveon’s datasheet matched our laser scan within 0.5 mm. That’s the confidence we need when we’re specifying for a $12M offshore project. They’ve earned a spot on our approved vendor list.”
Sarah L. Chen
Procurement Manager, AquaPure Water Systems (California)
“We used to buy from a US distributor at 3× the price. Thriveon’s 6″ flanged swing check valves fit perfectly on our ANSI flanges — same dimensions, same quality, but 37% less cost. Lead time was 16 days door-to-door.”
David Okonjo
Maintenance Manager, Shell Nigeria
“We ordered 8″ Class 150 flanged swing check valves for a water injection station. The bolt circle diameter was exactly 13.5″ as per ANSI — no rework needed. And the delivery took only 18 days. Highly reliable for critical service.”
Marcello Rossi
Technical Director, F.lli Bianchi S.p.A. (Milan)
“Customising the face-to-face length for our skid-mounted system was seamless. Thriveon’s engineering team understood our requirement in one call. The valves have been in service for 8 months with zero maintenance.”
Angela Park
Supply Chain Lead, Allied Process Solutions (Texas)
“Their dimension table is the most accurate I’ve seen from a China-based manufacturer. We’ve now used Thriveon on five projects — consistent quality, consistent measurements, and no surprises. That’s rare and valuable.”
Frequently Asked Questions About Flanged Swing Check Valve Dimensions
What are the standard flanged swing check valve dimensions for 6″ Class 150?
For a 6″ ANSI Class 150 flanged swing check valve, the standard face-to-face dimension (L) is 14″ (356 mm), flange OD is 11″ (279.4 mm), and bolt circle diameter is 9.5″ (241.3 mm) with 8 bolt holes of 0.88″ (22.4 mm) diameter. Bore diameter is typically 6.07″ (154.2 mm). These figures follow ASME B16.10 and B16.5.
Do you provide custom face-to-face dimensions for existing piping?
Yes. We regularly produce custom end-to-end (L) lengths, reduced bore, and special flange drilling patterns. Send us your piping drawing or bolt pattern, and our engineers will confirm within 24 hours. Minimum order quantity for custom dimensions is 10 pieces.
How can I verify that your flange dimensions match my existing ANSI flanges?
Request our free dimension datasheet with complete BOM. You can cross-check against ASME B16.5 tables. We also provide a free sample ring gauge for bolt pattern verification on first orders above 50 units. Most clients find our dimensions are directly interchangeable with US-made valves.
What materials are available, and how does it affect dimensions?
We offer cast steel (WCB, WCC), stainless steel (CF8, CF8M/304, 316), and ductile iron (ASTM A536). Material does not change the flange or face-to-face dimensions — all are machined to the same ASME tolerances. Wall thickness varies per pressure class, but external dimensions remain consistent for given NPS and Class.
What is your typical lead time for standard dimension valves?
Standard flanged swing check valves (2″–12″, Class 150/300) are produced in 14–21 days from order confirmation. Custom dimensions or special materials may require 21–28 days. We ship via sea or air to all US ports (LA, Houston, New York) and major global hubs.
Do you provide dimensional inspection reports with shipment?
Yes. Every order includes a Dimensional Inspection Report (DIR) signed by our QC team. For an additional fee, we can arrange third-party inspection (SGS, Bureau Veritas) at our factory before shipping. This is standard for our oil & gas clients.
Can I get a sample valve to test dimensions before bulk order?
Absolutely. We offer paid samples (refundable on bulk orders) for standard sizes. The sample is machined to exact production dimensions so you can validate fit in your pipeline. Lead time for a sample is 10–12 days.
What payment methods do you accept for US buyers?
We accept T/T (wire transfer), L/C at sight, and for qualified US clients, net 30 terms may be available upon credit review. All payments are processed through our secure corporate account. We also accept PayPal for sample orders under $1,000.
Peng has 14 years of experience in valve design and manufacturing, specialising in ASME/API check valves and custom flow solutions. He leads Thriveon’s engineering team and has personally overseen dimensional compliance for over 400 projects shipped to the US, Middle East, and Europe.
Need the Right Dimensions? Get a Free Engineering Review in 4 Hours
Send us your pipeline specs — we’ll confirm the exact flanged swing check valve dimensions you need, with a firm price and delivery date. No obligation, just fast technical support.
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 
