Eliminate valve corrosion failure, reduce replacement costs by 40%, and ensure leak-free operation in aggressive media environments — backed by rigorous shell & seat testing before every shipment.
If you source butterfly valves for aggressive media, you've likely faced one or more of these challenges:
Unlined metal valves fail within weeks when exposed to strong acids, alkalis, or chlorides. Replacement downtime can cost $2,000–$5,000 per hour in lost production.
Branded lined butterfly valves from US/EU manufacturers often carry 300–500% markup — eating into your operational margin without proportional quality gain.
Standard lead times of 12–20 weeks from traditional suppliers cause project delays. Meanwhile, air freight for urgent orders can cost $800–$1,200 per valve.
Cheap lined valves from unverified factories often feature uneven lining thickness, pin-hole porosity, or poor adhesion — leading to early failure and process contamination.
Verifying CE, FDA, or 3A compliance for lined valves adds weeks of paperwork. Non-compliant valves risk plant shutdowns and regulatory penalties.
Time zone differences and language barriers make troubleshooting a nightmare — 30% of imported valves are returned or never installed due to mismatched specifications.
You need a lined butterfly valve that delivers reliable corrosion resistance, certified quality, and competitive pricing — without the sourcing headaches.
Thriveon's lined butterfly valve combines a robust ductile iron body with a precision-molded PTFE or FEP lining, offering near-universal chemical resistance and bubble-tight shut-off across a wide temperature range.
Our lining is compression-molded and mechanically locked into the body, eliminating delamination. Tested at 3,000V spark to ensure pinhole-free coverage. Handles H₂SO₄, HCl, NaOH, and 95% of aggressive chemicals up to 180°C (356°F).
Available in wafer type (EN 558 series 20) and lug type (EN 558 series 21) configurations. Both allow bi-directional sealing with bubble-tight shut-off at 10 bar (150 psi). Suitable for end-of-line service in lug design.
Every valve is hydrostatically shell-tested at 1.5x rated pressure and seat-tested at 1.1x. Certifications include CE (PED 2014/68/EU), ISO 9001:2015, and FDA-compliant lining materials for food-contact applications.
By eliminating intermediaries, we offer PTFE lined butterfly valves starting at $89 (2" wafer) — FOB Tianjin. Typical lead time: 7–15 working days for standard sizes.
Need a specific liner material (PFA, PVDF, PP), special actuator mounting pad (ISO 5211), or custom disc/liner color? Our engineers modify tooling to match your requirements — MOQ from 10 pcs.
Our export team replies within 4 hours across all time zones. We ship via sea (LCL/FCL), air, or express — with real-time tracking and free sample valves available for qualification.
| Parameter | Specification |
|---|---|
| Size Range | 2" (DN50) – 24" (DN600) |
| Body Material | Ductile Iron DI-GGG50 / Cast Steel WCB / Stainless Steel CF8M |
| Liner Material | PTFE (virgin), FEP, PFA, PVDF — thickness 3–5 mm |
| Disc Material | PTFE-coated ductile iron / Stainless Steel 316 / Hastelloy C276 |
| Stem Material | Stainless Steel 416 / 17-4 PH / SS316 |
| Pressure Rating | PN10 / PN16 / Class 150 (10–16 bar / 150 psi) |
| Temperature Range | –40°C to +180°C (PTFE) / –20°C to +120°C (FEP) |
| Leakage Rate | Bubble-tight (ISO 5208 Rate A / FCI 70-2 Class VI) |
| Face-to-Face | EN 558 series 20 (wafer) / series 21 (lug) — also ASME B16.10 |
| Flange Drilling | EN 1092-1 / ASME B16.5 Class 150 |
| Actuator Mounting | ISO 5211 top flange — direct mount for manual, pneumatic, or electric |
| Certifications | CE (PED), ISO 9001:2015, FDA-compliant liner, RoHS, REACH |
lining butterfly lined butterfly valve lug butterfly
All dimensions and ratings are fully interchangeable with leading Western brands. Request a dimension drawing (DWG/PDF) →
A lined butterfly valve features a corrosion-resistant liner (typically PTFE, FEP, or PFA) bonded to the interior of the valve body and over the disc. This liner acts as a barrier between the metal body and the process fluid, allowing the valve to handle aggressive chemicals (acids, caustics, solvents) that would rapidly corrode unlined metal or elastomer-lined valves. Standard butterfly valves rely on the body material itself for corrosion resistance, which is both more expensive (if using alloys) and less reliable for severe service.
For standard sizes (2"–12", wafer type), our lead time is 7–15 working days from receipt of deposit. MOQ is 1 piece for sample orders and 10 pieces for production orders. Custom liner materials (PFA, PVDF) or special disc materials (Hastelloy C276) typically add 5–7 working days. We also keep stock of popular sizes (3", 4", 6") for 3–5 day express shipment via DHL/FedEx.
Yes — we offer free sample valves (up to 4" size) to qualified end-users and OEMs. You pay only the shipping cost. The sample will be fully tested (shell test, seat test, spark test) and shipped with a material certificate. This allows you to conduct your own cycle testing, chemical immersion testing, or dimensional verification before committing to a production order.
Our valves are CE marked (PED 2014/68/EU, Category III) and manufactured under an ISO 9001:2015 quality system. The PTFE liner material complies with FDA 21 CFR 177.1550 for food contact. We issue EN 10204 3.1 material certifications for the body, disc, liner, and stem on request. For pharmaceutical applications, we can also provide surface roughness reports (Ra ≤ 0.8 µm) and ferrite content measurement for SS316 components.
We accept T/T (bank wire transfer, 30% deposit + 70% before shipment), L/C at sight (irrevocable), and for small sample orders, PayPal or Western Union. For long-term contracts with established customers, we can negotiate net 30/60 terms subject to credit approval. All payments are processed via our corporate bank accounts in China and the USA (Wells Fargo).
Every valve comes with a 5-year warranty against manufacturing defects (liner delamination, body casting defects, stem failure). If a valve fails under warranty, we replace it at no cost — including shipping. Our technical support team is available via WhatsApp, WeChat, and email from 8:00 AM – 10:00 PM (GMT+8), and we typically respond to queries within 4 hours. For critical plants, we offer paid on-site support within 48 hours across the US and EU.
For a 6" (DN150) wafer type PTFE lined butterfly valve with ductile iron body and SS316 disc, FOB Tianjin price is $156–$189 per valve (depending on quantity). Shipping to a major US port (e.g., Houston) adds approximately $220–$380 for a 20' container (LCL). Total landed cost per valve for a container order of 100 pcs is roughly $180–$210/pc — about 45–55% less than equivalent US-brand valves. We'll provide a detailed CIP (Cost, Insurance, Freight) quote within 24 hours.
Absolutely. We offer full OEM/ODM capability: liner materials (PTFE natural, PTFE antistatic, FEP, PFA, PVDF), liner colors (white, black, blue), disc materials (PTFE-coated DI, SS316, SS316L, Hastelloy C276, Monel 400), and actuator mounting (ISO 5211 direct mount, NAMUR slot, or custom bolt pattern). Our engineering team uses SolidWorks for 3D modeling and can provide a custom drawing for approval within 2 days. MOQ for custom orders is 10 pcs per size.
★★★★★"Thriveon's lined butterfly valves are the best I've sourced from Asia. The PTFE lining is perfectly uniform, and the test documentation is thorough. We've installed 80 units across two chemical plants and had zero issues. Their support team is incredibly responsive — they literally called me at midnight to confirm a dimension. Highly recommend for any harsh chemical application."
★★★★★"We switched to Thriveon after years of paying premium prices for a European brand. The cost difference was impossible to ignore — we saved 48% on our initial order of 200 valves. But more importantly, the quality is genuinely excellent. The spark test report and hydro test certificate gave us full confidence. These valves have been in service on our sulfuric acid line for 16 months with zero maintenance."
★★★★★"As a valve distributor, I need suppliers who deliver consistent quality and keep their promises. Thriveon has been exceptional — their lined butterfly valves match the fit and function of the major brands I used to carry, at a price that allows me healthy margins. The 5-year warranty gives my customers peace of mind. I've increased my order volume by 300% in two years."
★★★★☆"We ordered 50 lug-type lined butterfly valves for a water treatment project in Saudi Arabia. The delivery was on time (11 days), and the valves passed inspection without any issues. The only minor challenge was the packaging could have been sturdier for the desert environment, but the valves themselves were perfect. Good value for the price."
★★★★★"Thriveon's lined valves helped us solve a chronic leaching problem in our pharmaceutical solvent recovery system. The PFA lining option was exactly what we needed — no swelling, no contamination. Their team worked with our engineers to modify the actuator bracket to fit our existing pneumatic actuators at no extra cost. Genuinely partnership-oriented."
Order today and receive free sample valve (up to 4") for qualification testing. All production orders include free hydrostatic & spark test reports and 5-year warranty.
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Ningjin Thriveon Valve Co., Ltd.
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China
Tel: +86-311-86935302 | Email: info@thriveonvalve.com | Web: thriveonvalves.com
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+86-311-86935302
+86-311-86935302
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info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
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