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Flange Butterfly Valve

βš™οΈ Direct from China's trusted valve factory

High-Performance Flange Butterfly Valve — Reliable Flow Control for Industrial Systems

Engineered for US & global buyers: cut procurement costs by up to 35 % without sacrificing quality. ASME/API-compliant, short lead times, and full OEM/ODM support for water treatment, HVAC, chemical & oil & gas applications.

πŸ“₯ Get Free Quote in 24h πŸ“„ Download Product Brochure βœ” Free sample available  |  ISO 9001:2015

Why Procurement Managers Struggle with Flange Butterfly Valves

Every year, industrial buyers lose time and budget because of four recurring pain points — especially when sourcing from overseas. Here’s what we hear from clients who came to us after a frustrating experience:

πŸ”΄ High Price, Hidden Costs

Markups from intermediaries add 20–40 % to valve costs. Plus, unexpected tariff surcharges and logistics fees blow budgets.

πŸ”΄ Inconsistent Quality

Valves that fail pressure tests, leak at the flange joint, or arrive with damaged seats — causing costly downtime.

πŸ”΄ Long & Unreliable Lead Times

Standard lead times of 8–12 weeks are common. When delays happen, your entire project schedule suffers.

πŸ”΄ High Shipping & Logistics Burden

Oversized valve crates, volatile ocean freight rates, and port congestion turn a simple purchase into a logistics nightmare.

Result: 47 % of sourcing managers report that valve procurement takes 30 % longer than planned (Industrial Supply Survey, 2025). You need a partner who eliminates these friction points.


Thriveon Flange Butterfly Valve: Built for Performance, Priced for Value

Ningjin Thriveon Valve Co., Ltd. combines 10+ years of engineering expertise with a vertically integrated factory in Hebei, China. Our flange butterfly valves are designed to meet or exceed ASME B16.5, API 609, and ISO 5752 standards — at a total cost that strengthens your bottom line.

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Powerful Factory

30,000 mΒ² production base, 200+ skilled workers, and automated CNC machining centers. Annual capacity: 500,000+ units.

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Quality Assurance

100 % hydrostatic and shell testing. API 598 seat leakage test. ISO 9001, CE, and RoHS certified. Traceability from melt to finish.

15Mm Butterfly Isolation Valve

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OEM/ODM Design

Custom flange drilling, stem extensions, gear operators, and special coatings (fusion-bonded epoxy, nylon, PTFE).

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High-Speed Delivery

Standard lead time: 15–25 days for standard sizes. Express shipping options: 7–10 days air freight available.

Technical Specifications — Flange Butterfly Valve (Wafer & Lug Type)

Parameter Standard Range Custom Options
Size (DN / inch) DN50 – DN600 (2β€³ – 24β€³) Up to DN1200 (48β€³) on request
Pressure Rating PN10 / PN16 / Class 150 Class 300, PN25
Face-to-Face Standard ISO 5752 / API 609 Table 1 DIN 3202, MSS SP-67
Flange Drilling ASME B16.5 / EN 1092-1 ANSI 125/150, JIS 10K
Body Materials Ductile Iron (GGG40/50), Cast Iron CF8/CF8M (SS304/316), WCB
Disc Materials Ductile Iron EN-GJS-400-15, SS304 SS316, Al-Bronze, Nylon-11 coated
Seat / Liner EPDM (warm water), NBR (oil), PTFE (chem) Viton, Silicone, Hypalon
Operation Lever handle (≀ DN200), gearbox (β‰₯ DN250) Pneumatic actuator, electric actuator
Testing API 598 / ISO 5208 Rate A (zero leakage) Low-emission fugitive emission test

flange in butterfly valve flanged butterfly valve flange type butterfly valve

Common Application Scenarios

  • Water & Wastewater Treatment: Isolation and flow regulation in aeration tanks, filter lines, and pumping stations.
  • HVAC & District Cooling: Reliable shut-off and balancing in chilled water and hot water loops up to 100 Β°C.
  • Chemical Processing: PTFE-lined butterfly valves for corrosive media handling (acids, alkalis, solvents).
  • Oil & Gas (low-pressure): Fire-safe designs for fuel handling, crude oil transfer, and gas distribution.

Trusted by Industrial Buyers Across 30+ Countries

βš™οΈ US HVAC distributor πŸ—οΈ Saudi EPC contractor 🌊 Italian water utility πŸ›’οΈ South African mining group πŸ”§ German OEM partner

“We replaced our previous European supplier with Thriveon. Same quality, 38 % lower cost, and their engineering team helped us modify the flange drilling to match our US-built actuators perfectly.”

β€” Robert C., Purchasing Manager, Midwest Flow Solutions (USA)

“Consistent on-time delivery — we ordered 1,200 pieces for a desalination plant in Jeddah. Every valve passed third-party inspection. Reliable partner.”

β€” Khalid A., Supply Chain Director, Red Sea Engineering (KSA)

“Thriveon’s OEM team designed a special stem extension for our automated skid. Fast turnaround, clear communication, and no hidden fees.”

β€” Marco V., Technical Director, ValveTech Srl (Italy)
βœ… ISO 9001:2015 βœ… CE Marked (PED 2014/68/EU) βœ… RoHS Compliant βœ… API 609 / API 598 βœ… WRAS (upon request)

Frequently Asked Questions About Flange Butterfly Valves

β‘  What is the difference between a wafer and a lug flange butterfly valve?
A wafer-style valve fits between two flanges and uses bolts that pass through the valve body. It is lighter and more economical. A lug-style valve has threaded inserts (lugs) that allow each flange to be bolted independently, enabling isolation downstream without draining the entire system. Lug valves are preferred in dead-end service and maintenance-intensive lines.
β‘‘ Can Thriveon supply flange butterfly valves with custom actuator mounting?
Yes. We offer ISO 5211 mounting pads for electric, pneumatic, and hydraulic actuators. We also supply complete actuated valve packages with gearboxes or quarter-turn actuators, fully tested before shipment.
β‘’ What is the typical lead time for an order of 100–500 pieces?
For standard sizes (DN50–DN300, ductile iron, EPDM seat) our lead time is 15–25 working days. For larger sizes, special materials, or actuated valves, please allow 25–35 days. Express air freight can reduce transit to 5–7 days.
β‘£ How do you ensure quality control during production?
Every production lot undergoes: (1) incoming raw material inspection, (2) in-process dimensional checks, (3) 100 % hydrostatic shell test at 1.5Γ— rated pressure, (4) seat leakage test per API 598, and (5) final visual and marking inspection. Test reports are included with each shipment.
β‘€ What payment terms do you offer for US buyers?
We accept T/T (wire transfer), L/C at sight, and for qualified US customers, net 30 or net 60 terms (subject to credit approval). We also support payment via PayPal for sample orders. Minimum order quantity (MOQ) for standard valves is 10 pieces per size.
β‘₯ Can you provide free samples for evaluation?
Yes. We offer free samples (1–2 pieces per size) for qualified B2B buyers. The buyer covers shipping costs, and we will refund the sample cost on the first bulk order. Contact us with your requirements.
⑦ How do you handle after-sales service and warranty?
We provide a 24‑month warranty against manufacturing defects. If a valve fails under normal operating conditions, we replace it or issue a credit. Our technical team is available via WhatsApp, email, or video call to troubleshoot installation or performance issues.
β‘§ What shipping methods do you recommend for US destinations?
For cost-effective ocean freight, we ship via FCL (20’/40’ containers) or LCL to major US ports: Los Angeles, Houston, New York, and Savannah. Transit time: 18–28 days. For urgent orders, air freight (DDP or DAP) is available. We handle all export documentation.

What Our Customers Say About Us

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“We have been using Thriveon’s flange butterfly valves for two years now. The quality is consistent, and their customer service is exceptional. Highly recommend for any industrial application.”
Avatar of Daniel R.
Daniel R.
Maintenance Manager, ChemCore USA
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“I was skeptical about sourcing from China, but Thriveon proved me wrong. Their valves meet our specs, the pricing is fair, and they deliver on time. Great partner for our HVAC projects.”
Avatar of Sarah L.
Sarah L.
Procurement Lead, EcoCool Systems (USA)
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“The OEM support is outstanding. We needed a special coating for a seawater application, and Thriveon delivered quickly. Excellent communication throughout.”
Avatar of James M.
James M.
Project Manager, Gulf Marine Services
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“We have ordered over 3,000 valves from Thriveon across three projects. Very few quality issues, and they resolved them immediately. A trustworthy supplier in the long run.”
Avatar of Linda H.
Linda H.
Supply Chain Manager, AquaPure Inc.
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“Fast response, clear quotes, and the product matches the specifications exactly. I appreciate the transparency and professionalism. Will definitely order again.”
Avatar of Tom S.
Tom S.
Director of Operations, PipingTech LLC

David L. Morrison
David L. Morrison
Senior Valve Engineer & Industry Analyst with 18 years of experience in flow control and international supply chain. David has worked with Fortune 500 engineering firms and Chinese manufacturing plants, helping bridge quality standards between East and West. He is a regular contributor to Valve World Americas and a member of the American Society of Mechanical Engineers (ASME).

Ready to Source Flange Butterfly Valves with Confidence?

Stop overpaying for valves that don’t deliver. Get factory-direct pricing, certified quality, and delivery you can rely on.

βœ… Free samples available  |  24‑month warranty  |  No‑risk money‑back guarantee on first order




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