B2B Global Engineering Whitepaper

Wholesale Kitchen Strainer Manufacturers & Factories

Technical Architecture, Dual-Origin Supply Chain Resilience, Lead-Free Metallurgy, and High-Precision OEM Infrastructure for North American & Global Plumbing Distributors.

Primary Product Lineup

Precision-Engineered Kitchen Sink Strainers & Grids

Featuring snap-in grids, deep-cup strainers, adapter bushings, and protective bottom racks manufactured across our dual production footprints.

China 3-3/8" OD Snap-in Strainer Grid JN-6330

China 3-3/8" OD Snap-in Strainer Grid JN-6330 Factories

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China Adapter Bushing JN-3011

China Adapter Bushing JN-3011 Manufacturer, Factory

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China 4-1/2" OD Snap-in Strainer Grid JN-6324

China 4-1/2" OD Snap-in Strainer Grid JN-6324 Suppliers

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Wholesale Grid Strainer JN-5004-3-CP

Wholesale Grid Strainer JN-5004-3-CP Manufacturers

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China Sink Protectors JN-9888-7

China Sink Protectors & Bottom Grid JN-9888-7 Factory

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Wholesale Flat Top Bar Sink Strainer JN-1202

Wholesale Flat Top Bar Sink Strainer JN-1202

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Wholesale Replacement Strainer Basket JN-1112

Wholesale Replacement Strainer Basket JN-1112

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Wholesale Deep Cup Sink Strainer JN-1016

Wholesale Deep Cup Sink Strainer JN-1016 Supplier

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Industrial Authority & Regulatory Benchmarks

Executive Sourcing Guide: Solid Brass & Stainless Steel Drainage Architecture

In the modern international plumbing supply ecosystem, procuring high-grade kitchen sink strainers demands vastly more than identifying lowest-cost unit pricing. Global plumbing brands, OEM specification managers, architectural supply houses, and RV system manufacturers require rigorous metallurgical integrity, strict dimensional repeatability, low-lead compliance (ANSI/NSF 61 & AB1953), and absolute supply chain anti-fragility.

As a master manufacturer established in 1998 in Yuhuan, Zhejiang, China—and expanded via Gateway Enterprise Corporation (Thailand) Co., Ltd. in Kabinburi Industrial Zone, Prachinburi—JANA Plumbing represents the gold standard in end-to-end drainage hardware manufacturing. Integrating advanced hydraulic forming, automated CNC metal lathe machining, progressive stamping, and multi-stage PVD/electroplating under ISO 9001 certified management, we deliver complete OEM/ODM solutions engineered to surpass ASME A112.18.2 / CSA B125.2 performance standards.

Key Engineering Takeaway for Procurement Officers: JANA Plumbing operates dual-origin production centers across China and Thailand (spanning over 28,400 m² combined). This structural footprint mitigates geopolitical supply disruptions, optimizes tariff structures (such as Section 301 duties), and guarantees uninterrupted volume deliveries for tier-1 North American and European plumbing brands.
1998
Founded Year
28,400m²
Total Plant Footprint
UPC / cUPC
IAPMO Certified
100%
In-House QC & Testing
Supply Chain Resilience & Infrastructure

Industry 4.0 Footprint: Dual-Origin Manufacturing Strategy

Combining Zhejiang’s deep supply-chain ecosystem with Thailand’s automated, tariff-friendly production capabilities.

Yuhuan, China Headquarters

Established in 1998, our 14,000 m² Yuhuan headquarters serves as the central hub for R&D, tooling creation, master mold development, high-speed automated brass forging, and deep-cup rolling thread forming. It anchors our core technical innovation.

Kabinburi, Thailand Factory

Operational since December 2023, Gateway Enterprise Corporation (Thailand) spans 14,400 m² of smart robotic machining, automated polishing, and eco-certified wastewater treatment, offering importers a seamless 0% tariff option for US entry.

Unified Quality Architecture

Both facilities operate under unified ISO 9001:2015 quality management, sharing identical CAD models, CNC programming, raw material spectroscopic verification, and automated optical inspection (AOI) systems for 100% SKU consistency.

Operational Metric China HQ (Yuhuan, Zhejiang) Thailand Plant (Kabinburi, Prachinburi)
Factory Surface Area 14,000 m² 14,400 m²
Primary Core Competencies Tooling R&D, Hydraulic Deep-Drawing, Heavy Brass Forging Automated CNC Machining, Robotic Polishing, Assembly & Packing
Target Supply Advantage Ultra-fast Prototyping, Component Scale & Material Agility Tariff Mitigation (US Duty Exemption), Supply Continuity Safety
Compliance Certificates ISO 9001, UPC, cUPC, AB1953, IAPMO R&T ISO 9001, UPC, cUPC, BRC Global Standard
Material Science & Engineering Standards

In-Depth Technical Specifications: Brass vs. Stainless Steel Strainers

Kitchen strainers operate under challenging chemical and thermal environments—subject to boiling water, corrosive food acids, grease, abrasive cleaning agents, and constant mechanical vibration. JANA Plumbing’s engineering roadmap prioritizes material stability and mechanical longevity across two main metallurgical categories:

1. Solid Heavy-Duty Brass Construction (C37700 / Low-Lead DZR Brass)

Our premium strainer bodies (such as the flagship JN-1001 and JN-1016 deep-cup series) are hot-forged from solid brass ingots complying with California AB1953 and NSF/ANSI 372 lead-content restrictions (weighted average < 0.25%). Solid brass exhibits superior resistance to stress corrosion cracking (SCC) and provides structural rigidity, preventing body distortion under heavy disposal unit vibrations or tight locknut clamping forces.

2. Stainless Steel Formings (AISI 304 / 316 Grade)

For high-volume retail and contract plumbing lines, our stainless steel snap-in grids (JN-6330, JN-6324) and basket assemblies utilize cold-rolled AISI 304/316 austenitic stainless steel. Containing 18% chromium and 8% nickel, these strainers resist pitting corrosion, surface tarnishing, and organic acid degradation over decades of continuous service.

Rolling Thread Technology

Unlike cut threads which weaken metal wall thickness, JANA uses cold-rolling thread technology on deep-cup strainers (e.g., JN-1016). This increases thread tensile strength by 30%, guaranteeing smooth locknut engagement without cross-threading.

Precision Rubber & Silicone Gaskets

Leaking strainers cause costly cabinet damage. We supply oil-resistant EPDM and food-grade non-staining silicone seal gaskets that maintain elasticity between -40°C and 120°C, ensuring a permanent watertight seal against stainless steel and composite quartz sinks.

EZ-Lock Mechanical Retention

Our JN-1011-2 EZ Lock Series incorporates engineered locking cams that allow rapid, tool-less installer positioning while delivering uniform 360-degree perimeter gasket compression.

Innovation Pipeline

Technology Roadmap & Future Outlook (2025–2030)

How JANA Plumbing is pioneering the next generation of smart, hygienic, and eco-friendly sink drainage hardware.

PVD Nano-Coating Evolution

Moving beyond conventional electroplating, our R&D lab is scaling Physical Vapor Deposition (PVD) vacuum coating. PVD applies micro-thin layers of Titanium Nitride (TiN) or Zirconium Nitride (ZrN), yielding matte black, brushed brass, and rose gold finishes that withstand 1,000+ hours of neutral salt spray testing (ASTM B117).

Anti-Microbial Surfaces

Infusing copper-ion matrix coatings and anti-bacterial surface topologies directly into stainless steel basket strainers. This innovation inhibits 99.9% of bacterial bio-film buildup (E. coli, Staphylococcus) inside waste drain assemblies without toxic chemical rinses.

Smart Sensor Strainers

Developing commercial-grade drain assemblies integrated with passive micro-flow sensors and clog detection indicators. Designed for high-end hospitality kitchens, these smart strainers alert maintenance teams prior to grease-trap backing or overflow events.

Multi-Sector Application Matrix

Macro Industry Solutions: Engineered for Global Segments

Drainage components perform distinct roles depending on the commercial and structural environment in which they are deployed. JANA Plumbing tailors metallurgical grades, thread profiles, and packaging specifications for three primary commercial channels:

Residential High-Rise & Subdivisions

Focuses on aesthetic variety (Matching PVD finishes to kitchen faucets), ultra-quiet operation, and quick-install locknut systems (JN-1007-T with pre-assembled tailpieces) that lower installer labor costs during mass multi-family residential construction.

Commercial Kitchens & Hospitality

Demands heavy-gauge 304 stainless steel deep-cup strainers (JN-1016) and disposer flange stopper sets (JN-1304) capable of handling continuous hot water dumping, commercial waste disposers (Waste King, InSinkErator compatible), and aggressive food scraps.

Recreational Vehicles (RV) & Marine

Requires light-weight yet high-durability compact strainers (JN-1202 Flat Top Bar Strainers) engineered with vibration-proof lock-rings and reduced depth profiles to fit constrained plumbing cavities in motorhomes and marine galleys.

Global Regulatory Assurance

Localization Support & Compliance Frameworks

Navigating global plumbing codes is vital to prevent port-of-entry impoundments or retail product recalls. JANA Plumbing works closely with international testing agencies like IAPMO R&T to ensure complete code compliance across target geographic markets:

Region / Market Governing Code / Certificate Technical Requirement & JANA Compliance Solution
United States & Canada UPC / cUPC (ASME A112.18.2 / CSA B125.2) 100% compliant wall thickness, standardized 3-1/2" sink drain opening threads (NPT/NPSM), non-toxic gaskets.
California & North America AB1953 / NSF 61 / NSF 372 Lead-free brass formulation (<0.25% lead), heavy metals extraction testing certified by IAPMO listing.
European Union EN 274 Sanitation Standards Compatible with G 1-1/2" thread sizing, flow rate compliance > 0.8 L/s, resistance to thermal shock (95°C cycles).
Global Retail Chains BRC Global Standard / ISO 9001 Ethical audit compliance, full lot traceability from raw brass ingot heat numbers to retail barcode box packaging.
B2B Purchasing Standard

Global Procurement Guide: OEM / ODM Workflows

Step-by-step engineering collaboration for custom plumbing product development.

1

CAD & 3D Prototyping

Clients provide 2D/3D drawings (STEP, DWG) or physical sample parts. Our engineering department returns finalized DFM (Design for Manufacturability) analysis and high-precision 3D resin samples within 72 hours.

2

Custom Tooling & Die Forging

In-house CNC toolmaking creates hardened steel stamping dies and progressive drop-forge molds. Mold sampling and pre-production approval batches are completed within 15–25 business days.

3

Private-Label Retail Packaging

We supply complete private-label artwork execution—including custom color blister packs, retail shelf cartons, master carton barcoding (UPC-A, EAN-13), and bilingual installation instruction sheets.

Full Product Catalog

Specialty Plumbing Drains, Flanges & Accessories

Disposer flanges, adjustable closet flanges, pop-up assemblies, and replacement strainers.

China Metal Adjustable Closet Flange JN-1601

China Metal Adjustable Closet Flange JN-1601

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Wholesale Deep Style Disposer Flange Stopper Set JN-1304

Wholesale Deep Style Disposer Flange Set JN-1304

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Wholesale Stainless steel disposer stopper JN-1121

Stainless Steel Disposer Stopper JN-1121 (Waste King)

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Wholesale Brass Pop-up Assembly JN-5014-NOF-L

Wholesale Brass Pop-up Assembly JN-5014-NOF-L

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Wholesale Sink Strainer JN-1009-2

Wholesale Sink Strainer JN-1009-2 Factory Direct

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China 4-1/4" OD Snap-in Strainer Grid JN-6323

China 4-1/4" OD Snap-in Strainer Grid JN-6323

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China EZ Lock Basket Strainer JN-1011-2

China EZ Lock Basket Strainer JN-1011-2 Manufacturers

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China Economy Strainer with tailpiece JN-1007-T

China Economy Strainer with Tailpiece JN-1007-T

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Sourcing & Procurement Knowledge Base

Frequently Asked Questions (FAQ)

Direct technical answers for commercial buyers, plumbing importers, and OEM contract managers.

What specific products does JANA Plumbing manufacture in its factories?
JANA Plumbing manufactures a comprehensive portfolio of solid brass and stainless steel plumbing hardware, including heavy-duty kitchen sink strainers, bar sink strainers, disposer flange & stopper sets (compatible with Waste King & InSinkErator), snap-in strainer grids (3-3/8" and 4-1/2" OD), lavatory pop-up drains, bath drains, shower drains, closet flanges, tank levers, shower arms, bottom sink protector racks, and solid brass pipe fittings.
Why is having dual-origin manufacturing in China and Thailand beneficial for North American buyers?
Operating factories in both Yuhuan, Zhejiang (China HQ) and Kabinburi, Prachinburi (Thailand plant) allows JANA Plumbing to offer absolute supply-chain redundancy. Importers can source from our Thailand plant to qualify for 0% Section 301 tariffs entering the United States, while leveraging our Chinese headquarters for fast R&D tooling, prototype development, and raw component scale.
Are JANA Plumbing’s sink strainers certified for North American plumbing codes?
Yes. Our core sink strainers, lavatory drains, and pipe fittings hold official UPC and cUPC listings under IAPMO R&T, demonstrating compliance with ASME A112.18.2 / CSA B125.2 standards. Furthermore, our brass components comply with California AB1953 and NSF/ANSI 372 lead-free criteria (<0.25% weighted lead content).
What is the minimum order quantity (MOQ) for wholesale and OEM orders?
For standard catalog SKUs (such as JN-1001-1 or JN-6330), our baseline MOQ is typically 1,000 units per item. For custom OEM/ODM designs requiring dedicated forging dies or customized PVD finish runs, baseline MOQs start at 3,000 units, depending on component geometry and packaging requirements.
What quality control (QC) procedures are performed before shipment?
Every production batch undergoes a 5-stage QC protocol: 1) Raw material XRF alloy spectroscopy; 2) 100% thread gauge verification (NPSM/NPT); 3) Hydrostatic pressure testing at 0.6 MPa for leak testing; 4) 24 to 96-hour neutral salt spray corrosion testing (ASTM B117) for electroplated/PVD finishes; and 5) Final AQL 1.5 pre-shipment visual inspection.
Can JANA Plumbing customize strainer finishes to match decorative faucet colors?
Absolutely. We operate advanced electroplating and PVD finish lines capable of matching modern faucet aesthetics, including Polished Chrome (CP), Brushed Nickel (BN), Oil Rubbed Bronze (ORB), Matte Black (MB), Brushed Gold (BG), and PVD Rose Gold.