ISO 9001 & cUPC Certified OEM/ODM Manufacturing

China Bathroom Sink Strainer Supplier & Factory

Precision Engineering, Dual-Origin Supply Chain Resilience, and Next-Generation Sanitary Ware Solutions for Global Commercial & Residential OEM Partners

Featured Product Series

Precision-Engineered Sink Strainers & Drain Components

Direct factory supply featuring solid brass, stainless steel, and high-durability polymer assemblies built to North American and European plumbing codes.

Wholesale Spin & Lock Sink Strainer with tailpiece JN-1003-T Supplier, Factories
Wholesale Spin & Lock Sink Strainer with tailpiece JN-1003-T
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Wholesale Disposer Flange JN-1307-F Manufacturers, Factories
Wholesale Disposer Flange JN-1307-F
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Wholesale Dielectric Nipple JN-3012 Supplier, Factories
Wholesale Dielectric Nipple JN-3012
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China Shower Arm & Flange JN-8001 Supplier, Suppliers
China Shower Arm & Flange JN-8001
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China Grid Strainer JN-5004-3-BN Supplier, Factory
China Grid Strainer JN-5004-3-BN
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Wholesale Economy Plastic Tray Plug Bar Sink Strainer JN-1204 Manufacturers, Suppliers
Wholesale Economy Plastic Tray Plug Bar Sink Strainer JN-1204
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Wholesale Replacement Strainer Basket JN-1111 Supplier, Factories
Wholesale Replacement Strainer Basket JN-1111
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China Twist Locking Sink Strainer with tailpiece JN-1031-T Manufacturers, Suppliers
China Twist Locking Sink Strainer with tailpiece JN-1031-T
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Engineering Trust & Quality Assurance

30 Years of Plumbing Hardware Expertise & Dual-Origin Manufacturing

Since 1998, JANA PLUMBING CO., LTD. has established itself as a premier OEM/ODM manufacturer specializing in solid brass, stainless steel, and specialized sanitary drain hardware. Serving North American, European, and global building supply wholesalers, private label brands, and RV manufacturers.

Dual Production Ecosystem

Headquartered in Yuhuan, Zhejiang, China (14,000 m²) with a state-of-the-art expansion plant in Kabinburi, Thailand (14,400 m²), offering tariff optimization and robust supply chain risk management.

Uncompromised Code Compliance

Certified to North American UPC, cUPC, and ISO 9001 standards. Compliant with ASME A112.18.2 / CSA B125.2 and California AB1953 lead-free health legislation for potable water contact integrity.

End-to-End Vertical Integration

From automated brass rod forging and CNC high-precision machining to automated robotic polishing, PVD physical vapor deposition, and blister/retail box packaging under unified quality control.

1998
Year Established
28,400 m²
Global Manufacturing Base
200+
Skilled Technicians & Engineers
100%
Traceable QC Inspection

Industry Trends: The Technological & Regulatory Evolution of Bathroom Sink Strainers

The global commercial and residential sanitary fitting market is undergoing a significant architectural transition. Modern bathroom sink strainers are no longer treated as simple passive drainage fittings. Driven by stringent international building codes, eco-conscious water management standards, and elevated interior design demands, modern bathroom sink strainers have evolved into highly engineered flow-control modules requiring advanced material science, micro-precision fluid dynamics, and surface durability coatings.

As a leading China Bathroom Sink Strainer Supplier & Factory, JANA Plumbing maintains a rigorous technical development pipeline to address major technological vectors dominating global procurement requests:

  • Hydrodynamic Fluid Dynamics & Rapid Evacuation: Advanced CFD (Computational Fluid Dynamics) modeling is utilized to design basket perforation matrices, grid bar angles, and internal tailpiece throat geometry. This optimizes gravity flow rates (measured in gallons per minute, GPM) while maintaining robust hair and particulate interception, eliminating standing water in vessel and undermount lavatory sinks.
  • Lead-Free Brass Alloys & Chemical Resistance: Regulatory pressure across North America (NSF/ANSI 61, California AB1953) and Europe (REACH / RoHS) mandates lead content below 0.25% in wetted plumbing surfaces. OEM factories now deploy CW617N, C37700, and C27400 high-density dezincification-resistant (DZR) brass alloys that resist aggressive municipal water treatments, chloramines, and acidic cleaning agents.
  • Surface Engineering & Advanced PVD Finishes: Modern commercial and luxury hospitality markets demand finishes that endure harsh sanitization protocols without tarnishing. Factory-applied Physical Vapor Deposition (PVD) titanium/zirconium nitrides deliver surface hardness exceeding 2000 HV (Vickers), providing exceptional abrasion resistance across Matte Black, Brushed Nickel, Oil Rubbed Bronze, and Polished Chrome finishes.
  • Modular Tool-Free Installation Assemblies: Contract installers prioritize labor cost reduction. Modern strainers incorporate double-lipped EPDM / silicone compression gaskets, anti-friction slip rings, and deep-cut Acme threads that allow hand-tightened leak-proof seals without requiring excessive plumber's putty or heavy torque wrenches.
Key Engineering Takeaway for Procurement Officers: Sourcing high-volume sink strainers requires evaluating grain structure density, thread pitch accuracy, and gasket compression memory. Low-grade die-cast strainers suffer from stress corrosion cracking (SCC) and pinhole porosity over time, whereas hot-forged solid brass strainers offer lifetime structural resilience.

Global Enterprise Sourcing Criteria & Regulatory Code Compliance

For international procurement managers, hardware distributors, and retail chain buyers, selecting a reliable OEM partner in China involves extensive verification of manufacturing compliance and code certification. A single uncertified fitting can stall entire commercial building projects or lead to costly customs holds.

JANA Plumbing's manufacturing protocols strictly adhere to global regulatory standards, ensuring seamless integration into localized supply chains:

1. North American Plumbing Codes (UPC / cUPC & ASME)

Products engineered for the United States and Canadian markets must comply with ASME A112.18.2 / CSA B125.2 (Plumbing waste fittings). Our sink strainers undergo rigorous structural testing, including hydrostatic pressure testing, continuous flow capacity verification, thermal cycling endurance (-20°C to 90°C), and chemical corrosion exposure. UPC/cUPC listings issued by IAPMO guarantee that our strainers meet the strict standards required by municipal plumbing inspectors across North America.

2. Material Safety & Environmental Directives

With increasing global focus on water purity, our raw brass melt charges undergo optical emission spectrometry (OES) verification prior to hot forging. We ensure absolute adherence to NSF/ANSI 372 lead-free limits and AB1953 standards. Plastic components—such as tray plugs, seals, and tailpiece washers—are constructed from virgin non-toxic polymers free from harmful phthalates and bisphenols.

3. Supply Chain Traceability & Private Label OEM Packaging

Enterprise buyers require strict batch traceability. Every master carton and individual packaging box from our factory features customized laser-etched SKU codes, batch lot numbers, UPC barcodes, and private-label logo branding. Our automated packaging lines support skin packing, polybags with header cards, color retail boxes, and bulk contractor pack configurations.

Smart Factory & Global Logistics

China Industry 4.0: Supply Chain Resilience & Manufacturing Synergy

Combining high-precision automation with strategic geographic expansion to guarantee uninterrupted volume delivery, competitive unit economics, and risk-diversified manufacturing.

Automated CNC & Robotic Machining

Our Yuhuan factory utilizes multi-axis CNC turning centers and automated robotic loading arms. This ensures zero-defect threading, exact wall thickness uniformity, and tight tolerances (±0.02mm) across high-volume production runs.

Strategic Dual-Origin Manufacturing

To assist global partners in navigating trade policies, tariffs, and geopolitical shifts, JANA Plumbing operates Gateway Enterprise Corporation Co., Ltd. in Kabinburi, Thailand (14,400 m²), offering tariff-free shipping routes and flexible production allocation.

Integrated Tooling & Rapid Prototyping

Equipped with modern CAD/CAM software, 3D optical scanning, and in-house mold tooling facilities, we turn custom client concepts and engineering drawings into functional production-grade brass prototypes in under 15 days.

Global Commercial, Residential & Industrial Application Landscapes

Bathroom sink strainers and lavatory waste assemblies must be tailored to specific installation environments. A heavy-duty strain grid suitable for a commercial airport washroom will differ substantially from a luxury pop-up drain designed for a high-end residential vessel sink. JANA Plumbing provides custom engineering variants tailored across diverse application sectors:

1. Commercial High-Traffic Washrooms & Institutional Facilities

Public venues, educational institutions, arenas, and transportation hubs require tamper-proof, anti-vandalism, and high-durability drain solutions. Models such as our JN-5004-3-BN Grid Strainers feature non-removable perforated grid plates securely anchored to heavy cast brass bodies. This prevents unauthorized removal while facilitating continuous, clog-free drainage.

2. Luxury Residential & Hospitality Vanities

Boutique hotels and upscale residential developments require seamless aesthetics coupled with smooth mechanical operation. Our JN-5020 Pop-up Brass Assemblies incorporate smooth-operating internal springs or push-button mechanisms, paired with high-durability decorative PVD finishes designed to complement premium faucet hardware.

3. Commercial Kitchens, Bar Sinks & Food Prep Stations

Hospitality and commercial food preparation areas demand rapid particle separation and reliable water retention. Products like our JN-1003-T Spin & Lock Strainer and JN-1203-T Tray Plug Bar Strainers utilize deep stainless-steel baskets, precision rubber stoppers, and extended brass tailpieces to withstand heavy daily use and thermal shock.

4. Recreational Vehicles (RV), Marine & Modular Housing

Mobile and prefabricated living spaces require compact, lightweight, and vibration-resistant plumbing hardware. Our specialized plastic tray plug bar strainers (e.g., JN-1204) deliver dependable sealing performance while reducing overall fixture weight and installation depth.

Comprehensive Product Specification Matrix

Review the technical specifications of our core sink strainer and drain component product families below:

Category / Model Range Primary Materials Tailpiece Size Options Certifications Target Application
Heavy Duty Spin & Lock (JN-1003 Series) Forged Brass Body / SS Basket 1-1/2" (Brass or SS) cUPC, ASME A112.18.2 Residential Kitchens & Commercial Food Prep
Grid Strainer Assembly (JN-5004 Series) Solid Cast Brass Body 1-1/4" / 1-1/2" Direct Drain UPC, cUPC, AB1953 Institutional, Airport & Hotel Lavatories
Disposer Flange & Stopper (JN-1307 Series) Solid Brass / Stainless Steel Standard 3-1/2" Disposal Fit ISO 9001, Lead-Free Garbage Disposer Units & Residential Kitchens
Bar Sink Strainer (JN-1203 / JN-1204) Stainless Steel / Engineering ABS 2" Strainer Fit / 1-1/2" Tailpiece cUPC Compliant Commercial Bars, RVs & Compact Lavatories
Pop-up Lavatory Drain (JN-5020 Series) Heavy Brass Tube & Core 1-1/4" Standard Lavatory cUPC, IAPMO Listed Luxury Hotels & High-End Residential Vanities
Dielectric Nipple Fittings (JN-3012 Series) Galvanized Steel / Inert Liner 3/4" - 2" NPT Threaded Plumbing Pressure Rated Commercial Water Heater & Piping Isolation
Technical & OEM Sourcing FAQ

Frequently Asked Questions by Global Buyers

Get definitive answers from our senior plumbing engineers regarding materials, custom manufacturing, lead times, and regulatory compliance.

What makes JANA Plumbing a premier China bathroom sink strainer supplier?
JANA Plumbing brings nearly three decades of specialized experience in solid brass and stainless steel sanitary ware manufacturing. Our competitive edge lies in our dual-origin manufacturing footprint (Yuhuan, China and Kabinburi, Thailand), end-to-end vertical production control (from raw rod forging to finished retail pack), full UPC/cUPC certifications, and robust engineering support for custom OEM/ODM development.
How does your factory ensure lead-free compliance for North American orders?
All brass raw materials are verified using inline Optical Emission Spectrometry (OES) before forging. We utilize certified low-lead and lead-free brass alloys (such as C37700 and DZR brass) complying strictly with NSF/ANSI 372 and California AB1953 regulations. Chemical composition certificates are provided with every shipment batch upon request.
What are the advantages of sourcing from your Thailand facility versus China?
Our Thailand plant—Gateway Enterprise Corporation (Thailand) Co., Ltd.—covers 14,400 m² and operates identical automated equipment and quality protocols as our Zhejiang headquarters. Sourcing from Thailand allows international buyers to optimize tariff structures, mitigate country-of-origin import risks, and maintain uninterrupted supply chain logistics without re-qualifying tooling or designs.
Can you produce customized sink strainers based on client engineering drawings?
Yes. Our in-house engineering team works directly with client CAD/STEP files or physical samples. We provide complete mold design, rapid tooling, sample forging, CNC programming, custom finish matching (PVD, electroplating, powder coating), and custom retail packaging design.
What finishes are available for bathroom and kitchen sink strainers?
We offer a comprehensive spectrum of premium finishes, including Polished Chrome (CP), Brushed Nickel (BN), Oil Rubbed Bronze (ORB), Matte Black (MB), Brushed Gold (BG), and PVD Physical Vapor Deposition coatings. All finishes undergo 24-hour to 96-hour neutral salt spray (NSS) corrosion testing to ensure long-term durability.
What is the standard production lead time for bulk wholesale orders?
Standard production lead time for initial OEM orders is typically 35 to 45 days upon sample approval and deposit confirmation. For recurring catalog items with established tooling, lead times can be compressed to 25 to 30 days. Expedited production programs are available for strategic volume partners.
How do your sink strainers perform under heavy commercial usage?
Our commercial-grade strainers feature heavy-wall forged brass construction, reinforced locknuts, and chemical-resistant EPDM gaskets. Unlike light gauge stamped steel or zinc die-cast alternatives, our heavy brass strainers resist cracking under high thermal expansion, mechanical stress, and aggressive commercial cleaning agents.
What testing and quality control procedures are conducted prior to shipment?
Our ISO 9001 certified quality control process includes 100% dimensional inspection via optical projectors and thread gauges, 100% air-leak and hydrostatic pressure testing on assembled drain valves, surface plating thickness measurement, and destructive drop testing of final retail packaging.
What packaging options are available for retail and wholesale distribution?
We provide flexible packaging solutions including branded clamshell blister packs, retail color boxes with hang tabs, eco-friendly kraft inner boxes, and heavy-duty bulk contractor packs with barcoded master cartons tailored to warehouse distribution systems.
How can we request product samples and technical CAD data?
You can request product samples, 2D/3D CAD models, or complete technical specification sheets by contacting our international sales department at [email protected] or submitting an inquiry through our website. Samples for standard catalog models are dispatched within 3 to 5 business days.
Complete Drain Hardware Collection

Specialized Replacement Parts & Fitting Assemblies

Explore our extended catalog of replacement baskets, drain covers, grid strainers, and bath/shower components engineered for seamless compatibility.

China Tray Plug Bar Sink Strainer with tailpiece JN-1203-T Factories, Factory
China Tray Plug Bar Sink Strainer with tailpiece JN-1203-T
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China Replacement Strainer Basket JN-1116 Supplier, Factory
China Replacement Strainer Basket JN-1116
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China 4-5/8" OD Snap-in Strainer Grid JN-6329 Supplier, Factories
China 4-5/8" OD Snap-in Strainer Grid JN-6329
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Wholesale Pop-up, 2 Piece Brass Chrome JN-5020 Suppliers, Factory
Wholesale Pop-up, 2 Piece Brass Chrome JN-5020
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China Three Prong Drain Protector JN-1402 Manufacturers, Factories
China Three Prong Drain Protector JN-1402
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China Lift & Turn Drain Assembly JN-5002 Manufacturer, Factory
China Lift & Turn Drain Assembly JN-5002
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China Deep Pattern High Box Flange JN-8102 Manufacturer, Manufacturers
China Deep Pattern High Box Flange JN-8102
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China Replacement Strainer Basket JN-1108 Supplier, Suppliers
China Replacement Strainer Basket JN-1108
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Ready to Optimize Your Sanitary Hardware Supply Chain?

Partner directly with a certified manufacturer in China & Thailand. Request OEM catalogs, engineering CAD files, or custom tooling quotes today.