4 Inch Pipe End Cap – Premium Quality, Fast Delivery & OEM Design
For Purchasing Managers, Technical Directors & Operations Leaders who need reliable, cost‑effective pipe termination solutions, our 4 inch pipe end caps eliminate costly re‑work and downtime.
Get Free Quote in 24 hWhy Purchasing Managers Struggle with Pipe End Caps
Even a small mismatch in a pipe termination can trigger:
- ↑ Maintenance costs by up to 35 %
- Production line downtime of 2‑4 hours per incident
- Non‑compliance penalties (CE, ISO, RoHS) that cost $10k‑$50k per audit
Most suppliers in the market either charge premium prices or deliver sub‑standard castings that fail pressure tests.
Discover the solution →Hebei Yuanda’s Turnkey Solution for 4 Inch Pipe End Caps
Core Advantages
- Quality Assurance: ISO 9001, CE, RoHS, and ISO 14001 certifications.
- OEM/ODM Design: Fully custom dimensions, thread types, and material grades.
- High‑Speed Delivery: 7‑day production for standard orders; 14‑day for custom runs.
- Cost Efficiency: Direct factory pricing cuts 20‑30 % off typical market rates.
- Technical Support: Dedicated engineering team (Ben & Linda) for CAD review and pressure‑test validation.
Technical Specifications
| Parameter | Standard | Optional |
|---|---|---|
| Size | 4 in (101.6 mm) OD | Custom OD/T‑size |
| Material | Cast Iron, Carbon Steel, Stainless 316 | Aluminum, Brass, Duplex |
| Pressure Rating | PN 10 (150 psi) | PN 16‑PN 40 (300‑1200 psi) |
| Finish | Hot‑dip Galvanized | Powder Coat, PTFE Lining |
| Certification | CE, RoHS, ISO 9001 | UL, NSF, FDA (if required) |
Application Scenarios
Our caps are used in:
- Water‑treatment plants – preventing contamination
- Oil & gas pipelines – high‑pressure sealing
- Food‑processing equipment – FDA‑compliant stainless steel
- Industrial HVAC systems – corrosion‑resistant cast iron
Trusted by Global Brands
Certificates: CCC, CE, RoHS, ISO 9001, ISO 14001, GS, CB, VDE, SAA, HACCP/GMP.
“Switching to Yuanda’s 4 inch pipe end caps cut our assembly time by 28 % and saved $12,000 per quarter.” – John Miller, Procurement Lead, PetroTech IndustriesSee how you can benefit →
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a standard 4 inch pipe end cap?
We accept orders as low as 100 pieces for standard grades; custom alloys start at 250 pieces.
Can you provide a CAD model before production?
Yes. Our engineering team delivers 3D STEP files within 48 hours after receiving your dimensions.
What are the payment terms?
30 % T/T upfront, 70 % upon shipment (L/C, PayPal, or Western Union also accepted).
How long does shipping to the USA take?
Express air freight: 5‑7 business days; sea freight: 20‑25 days (door‑to‑door).
Do you offer a money‑back guarantee if the caps fail pressure testing?
Absolutely. We replace any non‑conforming batch at no extra cost.
Take Action – Get Your Free Sample & Quote Today
Limited Offer: First 50 customers receive a complimentary 5‑piece sample kit.
Request Sample & QuoteOr reach us instantly via WhatsApp: +86 1933 3738 338 (Ben) | +86 1933 3736 198 (Linda)
What Our Clients Say
- Emily Chen, Operations Manager, WaterPure Ltd. – “The caps fit perfectly on our 4‑inch PVC lines, eliminating leaks. Delivery was 6 days ahead of schedule.”
- Mark Davis, Senior Engineer, AeroVent Systems – “Custom‑machined stainless‑steel caps passed our 1500 psi test on the first try. Cost was 22 % lower than the previous supplier.”
- Linda Torres, Procurement Director, FoodSafe Solutions – “ISO‑9001 documentation saved us 3 days in audit preparation. The free sample helped us validate design quickly.”
About the Author
Alex Li – Senior Product Engineer, Hebei Yuanda Trade Co., Ltd.
With 15 years in metal casting and international supply chain management, Alex has led over 300 successful OEM projects for pipe fittings across North America and Europe.
Contact: info@ydcastings.com | Tel: +86‑311‑808‑126‑83
For Purchasing Managers, Technical Directors & Operations Leaders who need reliable, cost‑effective pipe termination solutions, our 4 inch pipe end caps eliminate costly re‑work and downtime. Even a small mismatch in a pipe termination
