WHITE PAPER & INDUSTRIAL SPECIFICATION Dual-Origin China & Thailand Manufacturing

Wholesale Replacement Shower Drain Part Factories & Factory Roadmap

Precision Engineering, Advanced Metallurgy, Hydrodynamic CAD Design, and Resilient Global B2B Supply Chain Systems for North American & European Sanitaryware Distributors.

DIRECT FACTORY INVENTORY

Core Replacement Parts & Drain Components

Explore our primary wholesale replacement components manufactured under rigid ISO 9001 and UPC/cUPC quality assurance guidelines.

Wholesale Disposer Flange & Stopper Set JN-1301

Wholesale Disposer Flange & Stopper Set JN-1301

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China Side Mount Tank Lever JN-2006

China Side Mount Tank Lever JN-2006 Supplier, Factories

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Wholesale Replacement Disposer Stopper JN-1114

Wholesale Replacement Disposer Stopper JN-1114

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Wholesale Stainless Steel Shoulder Strainer JN-1403

Wholesale Stainless Steel Shoulder Strainer JN-1403

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Wholesale Stainless Steel Basket Strainer JN-1020

Wholesale Stainless Steel Basket Strainer JN-1020

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Wholesale Sink And Basin Crumb Cups JN-1104

Wholesale Sink And Basin Crumb Cups JN-1104

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Wholesale Sink Protectors JN-9888-5

Wholesale Sink Protectors and Bottom Grid JN-9888-5

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Wholesale Economy Plastic Strainer JN-1008-5

Wholesale Economy Plastic Strainer JN-1008-5

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TECHNICAL ENGINEERING ROADMAP

Next-Generation Engineering in Replacement Shower Drain Parts

The global commercial and residential plumbing sectors are undergoing a massive shift toward higher hydrodynamic performance, anti-corrosive longevity, and zero-leak reliability. As a primary OEM/ODM source, our factory floor integrates advanced material science and automated machining to redefine replacement component standards.

28,400 m²
Global Factory Footprint
< 0.02mm
CNC Machining Precision
96 Hrs
Salt Spray Resistance
100%
Code Compliance Integrity

Hydrodynamic & CFD Computational Flow

Modern replacement shower drain strainers are designed using Computational Fluid Dynamics (CFD). By optimizing hole arrangement, pitch angle, and water suction vortex physics, our replacement drain covers deliver maximum flow rates exceeding ASME A112.18.2 / CSA B125.2 minimum benchmarks (up to 9.5 GPM), eliminating standing water in luxury walk-in enclosures.

Metallurgical Evolution & Lead-Free Brass

Transiting from standard cast zinc or basic brass alloys, our state-of-the-art forged solid C37700 brass and marine-grade 304/316 stainless steel replacement assemblies withstand harsh bathroom chemical cleaning agents. Full California AB1953 and NSF/ANSI 61 lead-free certifications protect consumer health and simplify municipal building inspections.

Advanced PVD Vacuum Deposition Finishes

Traditional chrome plating often peels or tarnish under high humidity. Our replacement strainers, hair catchers, and flanges utilize Physical Vapor Deposition (PVD) zirconium and titanium coatings. This yields ultra-durable Matte Black, Brushed Gold, and Gunmetal finishes capable of enduring 96-hour neutral salt spray (NSS) corrosion testing without degradation.

Engineering Insight: Precision tooling for replacement shower drain parts must account for thermal expansion differential between PVC/ABS sub-flooring pans and metal top strainers. Our dual-material sealing gaskets utilize engineered EPDM and silicone compounds to guarantee lifelong leak-proof operation.

MACRO INDUSTRIAL SOLUTIONS

Custom Sourcing & Modular Replacement Frameworks

Whether supplying big-box home improvement chains, commercial hospitality refurbishers, or specialized plumbing repair wholesalers, off-the-shelf drain fittings rarely fit every legacy installation. We provide modular, universal replacement engineering solutions.

Universal Retrofit Assemblies

Our patented replacement snap-in and screw-in shower drain strainers fit 2-inch and 3-inch standard residential drain bodies (including Oatey, Sioux Chief, and IPS configurations) without requiring tile demolition or under-floor pipe cutting.

OEM Custom Tooling & Rapid Prototyping

Utilizing 3D optical scanning and high-precision CNC die fabrication, we convert customer technical drawings into physical brass or stainless steel prototypes within 7 to 14 days, accelerating product launch cycles for private-label distributors.

Commercial & RV Marine Grade Plumbing

Extreme vibration and temperature fluctuations in RV and marine installations demand flexible gasket joints and lightweight, shatterproof engineered polymers. Our hybrid ABS/Stainless drain replacement kits ensure long-term stability under severe motion.

SMART MANUFACTURING & SUPPLY CHAIN

China Factory 4.0: Supply Chain Resilience & Dual-Origin Logistics

In an era of global trade volatile tariffs and logistics shifts, relying on a single manufacturing site represents a risk to large-scale procurement. JANA Plumbing operates two strategically aligned production centers.

Zhejiang Headquarter Factory (China)

Located in Yuhuan, Zhejiang—the premier brass hardware capital of the world—our primary facility handles complex forging, stamping, hydraulic tube bending, multi-axis CNC machining, electroplating, and automated visual defect inspection.

Kabinburi Facility (Thailand)

Operational since December 2023, our 14,400 m² Thailand plant in Kabinburi Industrial Zone features fully automated robotic processing lines, giving international importers a tariff-free second origin with matching quality controls.

In-Line Automated Quality Control

Every single replacement shower drain body undergoes pneumatic pressure testing (up to 0.6 MPa) to check for microscopic porosity or weld seams defects, ensuring zero water leakage prior to final master carton packing.

SPECIFICATION MATRIX

Global Procurement & Technical Compliance Matrix

Designed to help procurement officers, quality control engineers, and category managers rapidly evaluate technical compliance before placing bulk orders.

Component Category Primary Material Grades Dimensional Range Regulatory Standards Target Applications
Replacement Shower Strainers C37700 Brass, SS304, SS316 4-1/4" OD, Universal 2" Thread UPC, cUPC, ASME A112.18.2 Residential Tile Shower Pans, RVs
Disposer Flanges & Stoppers Solid Forged Brass, Deep Drawn SS 3-1/2" Standard Sink Opening cUPC, IAPMO, AB1953 Lead-Free InSinkErator / Universal Disposers
Lift & Turn Bath Conversion Kits Heavy Brass, Zinc Alloy Trim 1-1/2" NPSM Fine & Coarse Thread ASME A112.18.1 / CSA B125.1 Bathtub Refurbishment & Hotel Maintenance
Closet Spuds & Friction Rings Red Brass, Stainless Steel Friction 1-1/2" x 1-1/4", 2" Heavy Duty Federal Spec WW-P-541E Commercial Flushometer Toilets & Urinals
Deep Cup Basket Strainers 304 Stainless Steel, Brass Nut 3-1/2" Kitchen Sink Cutouts CSA B125.2, NSF 61 Certified Heavy-Duty Commercial Kitchen Sinks
REGULATORY & LOCAL SUPPORT

Localized Compliance & Regulatory Safeguards

Importing plumbing hardware into North America and Europe requires strict adherence to local building codes. A single non-compliant shipment can result in customs detentions, retailer fines, or legal liability.

UPC / cUPC & IAPMO Certifications

Our replacement shower drains, strainers, and waste fittings hold active listing certificates issued by IAPMO R&T, fully conforming to the Uniform Plumbing Code (UPC) and Canadian Uniform Plumbing Code (cUPC).

Comprehensive CAD & BIM Asset Library

We empower enterprise engineering teams by providing STEP, IGES, and Revit BIM models for all standard replacement parts, simplifying architectural integration into commercial building designs.

Custom Packaging & Private Label Barcoding

From retail-ready blister packs and header card polybags to heavy-duty bulk contractor packs, our packaging division delivers complete UPC barcoding, drop-test verified master boxes, and custom branded artwork.

PROCUREMENT Q&A

Frequently Asked Questions (FAQ)

Direct answers to common technical, manufacturing, and shipping questions asked by enterprise procurement managers.

Q1: What materials are used in your replacement shower drain parts to prevent corrosion?
We primarily manufacture our replacement shower drain covers, grids, and housings using heavy-gauge 304/316 stainless steel and forged lead-free brass (C37700). For budget-sensitive or lightweight applications, we offer electroplated engineered ABS/PVC units. Metal finishes undergo rigorous PVD or multi-layer electroplating to withstand 96 hours of neutral salt spray testing.
Q2: Can I order replacement shower drain parts from your Thailand factory to mitigate tariffs?
Yes! Our Thailand plant, Gateway Enterprise Corporation (Thailand) Co., Ltd., located in Kabinburi Industrial Zone, Prachinburi, became fully operational in December 2023. It operates with the same automated tooling, ISO 9001 quality protocols, and raw material standards as our Zhejiang headquarters, allowing North American clients to bypass specific country-of-origin tariffs.
Q3: Are your replacement drain parts universal or brand-specific?
We manufacture both universal retro-fit replacement parts (designed with adjustable spring clips, 4-1/4" OD grids, or 2" threads that fit major brands like Oatey, Sioux Chief, and Kohler) and direct OEM replacement parts built to exact customer drawings and specifications.
Q4: What certifications do your sanitaryware products hold for North American code compliance?
Our core product lines hold active UPC and cUPC listings certified by IAPMO R&T. They fully comply with ASME A112.18.1 / CSA B125.1, ASME A112.18.2 / CSA B125.2, and AB1953 lead-free health regulations. Certification documents and file numbers are available upon request during contract negotiation.
Q5: What is the typical Minimum Order Quantity (MOQ) and production lead time for wholesale orders?
Standard product MOQs typically range between 500 to 1,000 units per SKU depending on material and finish customization. Typical lead time for standard wholesale production runs is 30 to 45 days, while initial custom OEM tooling projects require 15 days for sample approval followed by 35 days for mass manufacturing.
ADDITIONAL WHOLESALE LINES

Complete Sanitaryware & Replacement Assemblies

Explore our comprehensive collection of bath waste kits, plastic shower drains, replacement baskets, and closet spuds.

China Lift & Turn Bath Waste Conversion Kits JN-6110

China Lift & Turn Bath Waste Conversion Kits JN-6110

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Wholesale Plastic Shower Drain JN-6305

Wholesale Plastic Shower Drain JN-6305 Manufacturer

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China Deep Cup Strainer Ball-bearing Basket JN-1006-T

China Deep Cup Strainer Ball-bearing Basket JN-1006-T

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China Deluxe Sink Strainer JN-1024

China Deluxe Sink Strainer JN-1024 Manufacturers

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China Replacement Strainer Basket JN-1115

China Replacement Strainer Basket JN-1115

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China Replacement Brass Closet Spud JN-3001-F

China Replacement Brass Closet Spud Steel Friction JN-3001-F

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Wholesale Replacement Strainer Basket JN-1111

Wholesale Replacement Strainer Basket JN-1111

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Wholesale Side Mount Tank Lever JN-2002

Wholesale Side Mount Tank Lever JN-2002 Supplier

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