Precision Engineering Portfolio
Featured cUPC Plumbing Components & Drain Assemblies
Standard-conforming waste, overflow, strainer, and replacement systems engineered from lead-free brass and surgical-grade stainless alloys.
Industry White Paper Analysis
Global Bathtub Drain Commercial Landscape & cUPC Mandates
Navigating regional compliance codes, flow dynamics, and material safety directives across North American and multinational construction corridors.
IAPMO cUPC & Harmonized Standards
Bathtub drain fittings installed throughout the United States and Canada must strictly satisfy ASME A112.18.2 / CSA B125.2 guidelines. The Uniform Plumbing Code (cUPC) ensures physical structural integrity, thermal cycling durability under sudden 180°F shock, hydrostatic leak prevention, and tight thread seal fidelity on coarse NPSM tailpieces.
AB1953 Lead-Free & Alloy Purity
Federal Safe Drinking Water Act amendments and California AB1953 restrict wetted surface lead to ≤0.25%. JANA leverages spectroscopic batch tracking to forge dezincification-resistant (DZR) solid brass (CW617N / C37700), eliminating pitting, stress corrosion cracking, and heavy metal leaching in high-salinity municipal water networks.
Hydraulic Flow & Hair Clog Dynamics
Modern architectural tubs demand peak discharge velocity exceeding 7.0 GPM without siphon failure. Structural grid spacing and overflow linkages are calculated through fluid modeling to balance rapid tub evacuation with microscopic anti-entrapment interception, avoiding pipe sediment build-up and downstream venting blocks.
| Performance Parameter | cUPC Standard Requirement | JANA Engineering Benchmark | Significance for Importers |
|---|---|---|---|
| Hydrostatic Pressure | 50 psi for 5 minutes without weeping | Tested to 85 psi continuous water head | Zero risk of wall cavity leakage post-drywall install |
| Corrosion Resistance | 24-Hour Salt Spray (ASTM B117) | 96-Hour Neutral Salt Spray (NSS) passed | Flawless finish longevity in humid luxury bath spaces |
| Mechanical Linkage Cycle | 10,000 actuations without deformation | 25,000 trip-lever lift test cycles completed | Prevents commercial hotel warranty callbacks |
| Thread Compliance | Class 2A/2B fit per ANSI/ASME B1.20.1 | 100% Go/No-Go calibrated plug gage verified | Smooth, strip-free engagement for field contractors |
Smart Manufacturing & Global Traceability
Chinese Manufacturing Velocity Combined With Dual-Country Origin
Integrated engineering infrastructure in Yuhuan, China and Kabinburi, Thailand providing unprecedented tariff mitigation and reliable fulfillment.
Fully Integrated In-House Ecosystem
Unlike assembly-only middlemen, JANA retains 100% control across hot forging, continuous hydraulic tube drawing, progressive stamping, automated 5-axis CNC machining, ultrasonic degreasing, and electroplating polishing under one roof, guaranteeing absolute traceability from ingot to pallet.
Robotic Polishers & Micron Accuracy
Equipped with robotic manipulator arms and precision optical vision inspection units, our production lines sustain tolerances within ±0.02mm. This eliminates irregular sealing angles, uneven thread pitches, and surface pinholes prior to high-durability PVD coating and chrome finishing.
Dual-Shore Supply Risk Elimination
To insulate brand owners and distributors from trade shifts and punitive tariffs, our 14,400 m² automated facility in Kabinburi Industrial Zone, Thailand operates synchronized with our Yuhuan headquarters, delivering verified Certificates of Origin (CO) under identical cUPC auditing regimes.
Yuhuan, Zhejiang Facility (China Headquarters)
Established 1998. The center of R&D, primary tooling fabrication, high-speed progressive metal stamping, heavy brass casting, and complex multi-component sanitary ware assembly.
Kabinburi Facility, Prachinburi (Thailand Plant)
Operational December 2023. Covering 14,400 m² with robotic machining cells, automated flow packing, and strict supply resilience for North American containerload delivery without trade disruptions.
1998
Year Founded
Over 27 years plumbing mastery
28,400m²
Production Footprint
China + Thailand facilities
200+
Skilled Workforce
Dedicated engineers & machinists
100%
Code Compliance
cUPC, IAPMO, AB1953, ISO 9001
Target Market Sectors
Localized Engineering Applications & B2B Procurement Scenarios
Tailoring bathtub drain assemblies to the rigid functional standards of modern construction verticals.
Multifamily Residential & Hospitality
High-turnover boutique hotels and luxury apartments require durable trip-lever and push-pull bathtub drains that resist cleaning acids and aggressive drain clearing snakes. Our solid brass overflow pipes prevent concealed in-wall corrosion, reducing insurance claims caused by hidden slow-leak water damage.
Modular Housing & RV Original Equipment
Prefabricated bathroom pods, mobile homes, and recreational vehicles operate in high-vibration settings where standard cast fittings crack. JANA designs compact brass and hybrid ABS/brass waste-and-overflow geometries engineered to absorb transit stress while guaranteeing airtight odor stops.
Private-Label Retail Hardware Brands
National retail chains and plumbing catalog wholesalers demand barcoded retail blister packaging, laser-etched OEM branding, matched designer finishes (Matte Black, Brushed Nickel, PVD Satin Gold), and verifiable IAPMO listing numbers registered directly under their private label brand.
Future Horizons
Emerging Industry Trends in Bathtub & Sink Drainage
How engineering innovations and environmental guidelines are redefining global sanitary specifications over the next decade.
Physical Vapor Deposition (PVD) Longevity
Electroplated surfaces degrade when exposed to harsh bath salts, bleach, and chlorine. Next-generation bath drains utilize vacuum PVD molecular deposition, creating titanium-level molecular bonding that yields 10x abrasion resistance and zero flaking across decades of daily operation.
Tool-Free Quick-Clean Cartridge Systems
Traditional bathtub drain stoppers require mechanical disconnection of linkage rods inside overflow tubes. Emerging patent designs feature drop-in, push-release, magnetic-assisted hair capture baskets that consumers can lift and rinse in seconds without unscrewing drain flanges.
Decarbonized Circular Metallurgy
Global architectural standards (LEED v4.1, BREEAM) reward sanitary fittings manufactured with high percentages of verified recycled brass scraps and non-toxic zinc processing. JANA optimizes induction furnaces to reduce thermal power draw while yielding 100% recyclable, zero-waste metallurgical outputs.
IAPMO Listed cUPC
ASME A112.18.2 / CSA B125.2
California AB1953 Compliant
ISO 9001:2015 Certified
NSF / ANSI 61 Certified
Procurement & Technical Consultation
Frequently Asked Questions for Bathtub Drain Importers
Everything engineering leads, sourcing agents, and supply chain managers require prior to contract signing.
What specific products does JANA Plumbing manufacture in China and Thailand?
JANA Plumbing manufactures solid brass and stainless steel sink strainers, bar sink strainers, disposer flange and stopper sets, lavatory drains, bathtub waste & overflow drains, shower drains, replacement sink/bath/shower parts, closet flanges, toilet tank levers, shower arms & flanges, sink bottom grids, flexible connection hoses, brass dielectric nipples, and customized architectural decorative finishes.
Why is cUPC certification non-negotiable for bathtub drains sold in North America?
cUPC certification verifies compliance with the Uniform Plumbing Code across the United States and the National Plumbing Code of Canada. City plumbing inspectors will fail building rough-ins that use non-listed bathtub drain components. Furthermore, North American big-box retailers (Home Depot, Lowe's, Ferguson) and commercial plumbing wholesalers are legally prohibited from cataloging non-certified drainage fittings.
How does JANA manage supply-chain security across both China and Thailand facilities?
Our Yuhuan, Zhejiang headquarters has perfected brass casting, forming, and machining since 1998. In December 2023, our 14,400 m² automated plant in Kabinburi Industrial Zone, Thailand commenced mass production. This dual-origin framework provides buyers complete flexibility: orders can be fulfilled from Thailand to reduce import duties and hedge against geopolitical shifts, or manufactured in China for high-volume rapid turnaround, with mirrored QC protocols and shared tooling standards.
Can you execute private-label OEM branding and custom packaging specifications?
Yes. Over 80% of our production volume is delivered under OEM and private-label contracts. We offer laser marking of logos on overflow plates and drain flanges, custom cardboard gauge packaging, full-color retail hanging clamshell blister packs, serialized UPC/EAN barcodes, and bilingual English-Spanish / English-French installation manuals tailored for contractor hardware shelves.
What brass alloy chemistry is used to prevent dezincification and lead contamination?
We cast our products using certified low-lead brass and DZR (Dezincification Resistant) alloys compliant with NSF/ANSI 372 and California AB1953. Our incoming brass ingots undergo optical emission spectrometry testing to verify zinc content under 35% and wetted lead concentration strictly beneath 0.25%, preventing water brittleness and structural leaching.
What are your typical minimum order quantities (MOQs) and shipment lead times?
For catalog products, our baseline MOQ is generally 500 to 1,000 units per SKU depending on surface finish (Chrome, Matte Black, Brushed Nickel, Polished Brass). Production lead times for standard 20ft or 40ft containerloads average 35 to 45 days, with expedited replenishment options available for contracted annual programs.
Complete System Accessories
High-Performance Drains, Valves & Replacement Hardware
Heavy-gauge brass pipe nipples, tank levers, overflow assemblies, and custom strainer solutions ready for global distribution.
Model JN-9888-5-ABP
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Product Specs
Model JN-1121
Wholesale Stainless steel disposer stopper Fit Waste King disposer JN-1121 Manufacturers, Factories
Product Specs
Ready to Partner with a Certified Bathtub Drain Manufacturer?
Submit your 2D/3D CAD technical drawings or target SKUs today. Our engineering team provides detailed DFM analysis, mold tooling quotations, and official IAPMO cUPC compliance verification files within 24 business hours.