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High‑Performance 3 4 Pipe End Cap – Precision‑Engineered, OEM/ODM Ready
Reduce leakage, cut installation time, and meet ISO 9001 standards with our 3 4 pipe end caps—ideal for purchasing managers, operations directors, and supply‑chain leaders.
Get Free Quote in 24 hWhy Your Current Pipe End Caps Are Holding Back Production
- High Unit Cost: Conventional caps often exceed budget by 15‑30% due to overseas freight and low‑volume pricing.
- Quality Inconsistencies: Dimensional variance >0.2 mm leads to leaks, re‑work, and warranty claims.
- Long Lead Times: Typical 6‑8 weeks from order to delivery slows line‑up changes.
- Regulatory Gaps: Missing CE, RoHS, or ISO certifications can block import clearance in the US.
- Limited Customization: One‑size‑fits‑all designs restrict integration with proprietary piping systems.
Your Solution: Hebei Yuanda’s 3 4 Pipe End Cap
Core Advantages
- Competitive Pricing: Up to 25% lower than US‑based suppliers thanks to our north‑China foundry network.
- ISO 9001 & CE Certified: Full compliance guarantees hassle‑free customs clearance.
- OEM/ODM Flexibility: Material (cast iron, aluminum, stainless steel) and finish (machined, sand‑blasted, powder‑coat) per your specs.
- Rapid Turnaround: 48‑hour high‑speed delivery for stocked SKUs; 2‑week lead for custom runs.
- Durability: Tested to 150 °C and 2 MPa pressure, exceeding industry standards.
Technical Specifications
| Parameter | Specification |
|---|---|
| Size | 3 in × 4 in (Ø 76 mm × 102 mm) |
| Material Options | Cast Iron, Aluminum 6061‑T6, 304/316 Stainless Steel |
| Tolerance | ±0.05 mm |
| Pressure Rating | ≤ 2 MPa (29 psi) |
| Operating Temp. | ‑30 °C to 150 °C |
| Surface Finish | Roughness Ra ≤ 0.8 µm; optional powder‑coat |
| Certification | CE, RoHS, ISO 9001, ISO 14001 |
Application Scenarios & Case Studies
- Automotive Exhaust Systems: Reduced leak incidents by 42% for a Tier‑1 supplier in Detroit.
- Industrial Water Treatment: Extended service life 3 years longer than competitor’s caps.
- Oil & Gas Pipeline Sections: Certified for low‑temperature cryogenic flow; saved $120 k in re‑work.
Frequently Asked Questions
What is the minimum order quantity for standard 3 4 pipe end caps?
The MOQ is 500 pieces for stock material. For custom alloys, the MOQ is 200 pieces.
Can you provide a sample before bulk purchase?
Yes, we ship a free engineering sample (up to 5 pcs) within 3 working days after PO confirmation.
What customization options are available?
Material, heat‑treatment, surface finish, logo engraving, and dimensional tolerances can be tailored to your engineering drawing.
How long does delivery take to the United States?
Standard stock caps arrive via UPS/DHL in 5‑7 business days. Custom orders ship by sea (30‑35 days) or air (7‑10 days) based on your preference.

What after‑sales support do you offer?
We provide 12‑month warranty, 24/7 technical hotline, and on‑site engineering assistance for installation issues.
Ready to Upgrade Your Piping System?
Limited Offer: 10% discount on the first order + free engineering sample. Stock limited – act now!
Email Quote WhatsApp NowOr call us directly at +86‑311‑808‑126‑83
What Our Clients Say
- Kevin Patel, Purchasing Manager, AeroTech USA – “The price gap dropped from 20% to 5% after switching to YD. Delivery was on‑time, and the caps fit perfectly the first time.”
- Susan Miller, Technical Director, CleanWater Corp. – “We needed a stainless‑steel cap that could resist chlorine. YD delivered a custom 304‑SS part within two weeks, saving us $8 k in re‑machining.”
- Michael Chen, Operations Lead, SteelFab Inc. – “After a 30% reduction in scrap, our quarterly profit rose by $45 k. The quality assurance reports were thorough and transparent.”
Reduce leakage, cut installation time, and meet ISO 9001 standards with our 3 4 pipe end caps—ideal for purchasing managers, operations directors, and supply‑chain leaders. Solve these issues now → Request a technical datasheet
Trusted By Global Leaders
Certifications: CE, RoHS, ISO 9001, ISO 14001, ASTM A48, ASTM B633