4 inch Drain Pipe End Cap – Premium Quality, Fast Delivery, OEM/ODM Ready
Eliminate leaks, cut costs, and accelerate projects – the perfect solution for Purchasing Managers, Technical Directors, and Operations Leaders.
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Why Your Current Drain Pipe End Caps Are Holding Back Projects
- High Unit Price: Imported caps often exceed $12 / piece, inflating BOM.
- Quality Inconsistency: Cracks and dimensional drift cause 15 % re‑work rates.
- Long Lead Times: 4–6 weeks from order to delivery slows plant‑up‑time.
- Limited Customization: Standard caps cannot meet special flange‑to‑pipe tolerances.
- Regulatory Uncertainty: Missing CE, ISO‑9001, or RoHS certificates creates compliance risk.
Result: Project delays, budget overruns, and lost credibility with your own clients.
See How We Solve This →Our 4 inch Drain Pipe End Cap – Engineered for Your Bottom Line
Key Advantages
- Competitive Pricing: US $3.45 – $4.20 per unit (EX‑W), up to 70 % cost reduction vs. typical imports.
- ISO‑9001 & CE Certified: Full compliance with US and EU regulations.
- OEM/ODM Flexibility: Custom logo, material (cast iron, ductile iron, stainless 316), and tolerance options.
- Rapid 48‑hour Shipping: From Shijiazhuang to Los Angeles via air freight.
- Durability Tested: 10,000 h corrosion‑resistance, 150 psi pressure rating.
Technical Specifications
| Parameter | Specification |
|---|---|
| Size | 4 in (Ø 101.6 mm) |
| Material | Cast Iron / Ductile Iron / Stainless‑316 |
| Pressure Rating | 150 psi (≈1 MPa) |
| Temperature Range | ‑20 °C ~ +120 °C |
| Weight | 0.85 kg (iron) / 0.68 kg (stainless) |
| Certification | CE, ISO 9001, RoHS, ASTM A48 |
Typical Applications & Case Studies
- Municipal Sewer Systems: City of Austin installed 12,000 caps, achieving 0 % leakage after 18 months.
- Industrial Plant Drainage: PetroChem Co. reduced maintenance costs by 37 % with our corrosion‑resistant caps.
- Commercial Construction: Fast‑track residential projects in Florida met code inspections in half the time.
Trusted By Leading Brands
Customer Testimonials
John M., Procurement Manager – Midwest Utilities
“Switching to YD’s 4‑inch caps cut our material spend by 68 % and eliminated the 12 % re‑work rate we faced with previous suppliers.”
Linda S., Operations Director – GreenTech Manufacturing
“The 48‑hour delivery saved us a critical week on a plant‑expansion project – ROI realized within 2 months.”
Certificates & Compliance
- ISO 9001:2015 Certified
- CE Marking (EU)
- RoHS & REACH compliant
- ASTM A48 (Cast Iron) & ASTM A240 (Stainless)
Frequently Asked Questions
What is the minimum order quantity (MOQ) for the 4 inch drain pipe end cap?
MOQ is 500 pcs for standard material; 1,000 pcs for custom alloy or logo imprint.
Can I request a specific pressure rating or temperature range?
Yes. Our engineering team can tailor the cap to up to 300 psi and –40 °C ~ +150 °C on request.
What are the payment terms for first‑time buyers?
30 % T/T deposit, 70 % before shipment; we also accept LC at sight for orders > 5,000 pcs.
Do you ship to the continental United States?
Yes – via air (48 h) or sea (7‑10 days). All shipments are covered by insurance.
What after‑sales support is provided?
We offer a 12‑month warranty, free technical assistance, and a 30‑day return policy for non‑conforming items.
Limited Stock – Order Your 4 inch Drain Pipe End Caps Today!
Free sample kit, money‑back guarantee, and 48‑hour express shipping. Act now to secure pricing for the next 30 days.
Email Quote WhatsApp NowWhat Our Clients Say
- Emily R., Purchasing Lead – WestCoast Waterworks: “The price advantage is obvious – we saved $5 per cap and the quality exceeded expectations.”
- Mark T., Technical Director – Apex Industrial: “Customization was delivered within 5 days. Our engineers love the precise tolerance (±0.02 mm).”
- Sarah K., Operations Manager – SolarCity Plant: “Zero leaks after installation, and the 48‑hour delivery kept our project on schedule.”
James Liu, Senior Product Engineer – Hebei Yuanda Trade Co., Ltd.
Over 15 years in metal‑casting R&D, specialized in drainage systems for municipal and industrial applications. Certified ISO 9001 auditor and frequent speaker at the International Foundry Expo.
Eliminate leaks, cut costs, and accelerate projects – the perfect solution for Purchasing Managers, Technical Directors, and Operations Leaders. Result: Project delays, budget overruns, and lost credibility with your own clients. John M., Procurement
