3 4 & 2 inch threaded floor flange for home | Factory

1. Markup Shock: You Pay 30–40% Above Factory Price

A typical U.S. distributor marks up imported MCI floor flanges by 35% to 45%. On a 10,000-unit order of 2-inch flanges, that's an overpayment of $8,000–$12,000 per container. When we surveyed 47 purchasing managers in 2025, 78% discovered they could source identical certified products directly from China at 18–23% lower TCO.

2. Inconsistent Thread Quality = Costly Field Failures

Low-cost, non-certified flanges often have tapered NPT threads with poor gaging. A 2024 plumbing contractor survey found that 23% of imported floor flanges from non-certified sources failed thread gaging tests (Go/No-Go), leading to leaks, callbacks, and liability exposure. We consistently maintain a first-pass acceptance rate of 99.6% on independent ANSI B1.20.1 gaging.

3. High Shipping Costs & Broken Lead Times

Those "cheap" flanges from a trading agent often ship via multiple consolidations, adding 4–6 weeks to promised timelines. Worse, mixed-material containers (zinc alloy + malleable iron) cause rust migration and galvanic corrosion during transit. Our direct factory shipping from Tianjin or Qingdao to Los Angeles averages 24–28 days door-to-door, with batch-level QC photos sent before loading.

True Factory Power

Production capacity: 2,500 tons/year of MCI fittings. In-house casting, threading, galvanizing, and testing — no outsourcing surprises.

Quality Assurance

Every 3/4 & 2 inch threaded floor flange is 100% pressure-tested and thread-gaged. Certificate of Conformance included with every shipment.

OEM/ODM Flexibility

Customize thread types (NPT, BSP, BSPT), coatings (zinc, galvanized, black, powder-coated), packaging, and carton branding. Your SKU is safe with us.

High-Speed Delivery

Standard 20ft container: 15–20 days production; 40ft HQ: 20–25 days. Air freight available for urgent SKUs within 7 days.

Tolerance & Quality Notes

• Thread gaging per ANSI/ASME B1.20.1 — L1 ring gage step: within 1 turn.

• Flange face flatness: ≤ 0.1 mm across the full face.

• Bolt hole alignment: indexed within ±0.3° to guarantee mating compatibility.

• Malleable iron heat treatment: fully annealed to ferritic structure, elongation ≥ 10%.

Testing Protocol (Every Batch)

• Chemical analysis — spectrometer verification of C, Si, Mn, S, P.

• Tensile test — 350 MPa minimum ultimate tensile strength.

• Pressure test — air test at 3.5 MPa for 30 seconds underwater.

• Coating thickness — magnetic gauge measurement per ISO 2178.

Residential Plumbing & Gas Piping

Used to secure vertical water supply risers, gas meter connections, and outdoor hose bibs to floors and walls. The 3/4" size fits standard domestic supply lines; the 2" size handles main service entrances and manifold junctions.

Industrial Structural Supports

In factories, 2 inch threaded floor flanges anchor handrails, machine bases, cable trays, and conveyor guardrails to concrete floors. MCI's shock-absorbing property reduces vibration transfer — a critical factor for precision equipment.

Fire Sprinkler & HVAC Systems

Listed floor flanges mount fire sprinkler risers to concrete slabs. The flat seating face and consistent bolt hole alignment allow quick field installation (average 4 bolts × 2 minutes each) — faster than welding a custom bracket.

Architectural / Furniture Applications

Designers increasingly use the 3/4 threaded floor flange as an exposed plumbing feature — supporting shelves, towel racks, or dining table legs. The zinc-plated finish gives a clean industrial aesthetic suitable for modern interiors.

"We've sourced 2-inch threaded floor flanges from Weihuan for 2 years. Their batch consistency and thread quality are better than our previous European supplier. Rejection rate dropped from 2.1% to 0.3%."

Mark Jensen
Purchasing Manager, Midwest Pipe Supplies (USA)

"The OEM/ODM service is impressive. We needed BSP threads on a 3/4 threaded floor flange with special packaging. Weihuan delivered on time and beat our target price by 12%. Will reorder."

Claire Dubois
Technical Buyer, Groupe Bâtiment (France)

"Their QC team sent us photos and ISO 9001 documentation before shipment. When we did a third-party inspection, everything passed. Communication was excellent — 8-hour time difference was never a barrier."

David Thompson
Operations Director, Britannia Builders Ltd (UK)

For standard galvanized finish (in-stock sizes), our MOQ is 2,000 pcs per size for mixed shipment. However, for first-time clients evaluating our quality, we offer trial orders of 500 pcs per size at a slightly higher unit price. Each size can be mixed within one container (e.g., 60% 2-inch + 40% 3/4-inch).

Absolutely. We produce both NPT (ANSI B1.20.1) and BSP (ISO 228 / BS 2779) threads. The 3/4 threaded floor flange for U.S. project will be NPT, while European / Middle East orders typically specify BSP. Just note your preference in the RFQ. For BSP, we use parallel threads (G threads) for floor flanges per ASME B16.3.

We ship FOB Tianjin/Xingang, CIF, or DDP to major ports worldwide. Sea freight: 24–28 days to Los Angeles, 30–35 days to Rotterdam, 25–32 days to Dubai. Air freight: 5–7 days door-to-airport. We provide full tracking from loading to arrival. For high-volume clients, we can book space with COSCO/Maersk and consolidate with your other orders.

Yes. We provide 2–3 free samples per size for evaluation (shipping cost covered by your courier account: DHL/UPS/FedEx). Samples are taken from actual production, not pre-polished "exhibition pieces," so you can properly verify thread gaging and coating thickness.

We follow a "7-day response, 30-day remedy" policy. If your inspection finds defective pieces (confirmed via photo/video or third-party inspection report), we will ship replacements in the next container free of charge (FOB basis), or credit your account for the value of rejected parts. In 8 years of export, our average claims rate is less than 0.4%.

For new clients: 30% T/T deposit, 70% balance against copy of B/L. We also accept L/C at sight for large orders. For long-term partners (after 2+ shipments), we can offer O/A 30–60 days with credit insurance (Sinosure). PayPal is available for sample payments.

Yes, 100% OEM is our specialty. We can print your brand on cartons, poly bags, and even laser-etch your logo on the flange body. We also support private label SKU codes and barcodes for your inventory system. Minimum for custom packaging: 3,000 pcs per SKU.

Yes. Our MCI floor flanges are manufactured to ASME B16.3, BS 143 & 1256, and EN 10242. Malleable iron itself conforms to ASTM A197 / EN 1562. For fire protection applications, we can supply UL-listed versions. Full third-party test reports (SGS/BV/TÜV) can be arranged for each shipment.

Lock in 2026 pricing with a Q1 order — save an additional 5% on first container.

Free samples first. If our quality doesn't match specs, we cover the return cost.

📱 Phone/WhatsApp: +86-18531701777
📧 Email: whxs@weihuantube.com

"We ordered 12,000 pcs of 3/4 threaded floor flange for our home improvement retail chain. Weihuan's galvanized finish is consistently uniform — no white rust spots like our previous Asian supplier. Customer returns dropped by 40%."

Sarah Mitchell
Category Manager, HomeFix Retail (Canada)

"As a contractor, I need flanges that won't fail inspection. Their 2 inch threaded floor flange passed our random torque test at 150 ft-lbs without cracking. This is the standard we should have used years ago."

Javier Rodriguez
Lead Plumber, Rodriguez Mechanical (Texas, USA)

"Their team handled a 40ft HQ order with mixed sizes and custom BSP threads. From PO to port in Antwerp took just 32 days. Documentation was flawless — no customs delays, no surprises."

Pieter van der Berg
Procurement Lead, Rotterdam Industrial BV (Netherlands)