In modern piping systems, having the right fitting makes all the difference between efficient flow and costly maintenance. One such essential component is the bouchon-réduit—a reduced end cap fitting commonly used to seal the end of a pipe while also adapting to a smaller diameter.
In this blog, we’ll explain what the 407 bouchon-réduit fitting is, its typical applications, customization options, and where to source high-quality versions directly from the manufacturer
🔧 What Is a Bouchon-réduit – 407 Fitting?
A bouchon-réduit (French for “reduced cap”) is a pipe fitting used to seal the end of a pipeline while simultaneously reducing the diameter of the flow path. It’s part of the 400-series fittings in many catalog systems, with the 407 model referring to a specific design standard.
This fitting is typically used in:
- PPR (Polypropylene Random Copolymer) pipe systems
- Hot and cold water installations
- Industrial or chemical pipelines
- Agricultural irrigation systems
📏 Key Features of 407 Bouchon-réduit Fittings
Feature | Description |
---|---|
Function | End cap with reduction to smaller outlet |
Material | PPR, PPR+GF (glass fiber), or custom thermoplastics |
Standard Sizes | From 20mm × 16mm to 160mm × 110mm |
Opciones de color | Green, gray, white, or custom colors for OEM |
Tipo de conexión | Socket fusion welding |
Standards | Conforms to DIN 8077/8078 and ISO 15874 |
✅ This fitting combines both sealing and reduction, making it highly space- and cost-efficient in pipeline design.
🏗️ Where Is the Bouchon-réduit Used?
The bouchon-réduit – 407 fitting is versatile and widely used in:
- Residential plumbing: For capping off unused water lines and adapting pipe sizes
- Building services: HVAC and chilled water systems
- Industrial processes: Chemical fluid control or compressed air lines
- Water management systems: Tanks, valves, and manifold setups
- Green buildings: Where PPR is preferred for its eco-safety and recyclability

🛠️ Customization Options Available at ifanpro
At ifanpro, we specialize in custom pipe fittings manufacturing to meet global specifications. Our custom bouchon-réduit – 407 fittings offer:
- Tailored dimensions based on project requirements
- Private label and logo printing
- Color matching for brand identity
- OEM packaging and barcode support
- Material upgrade options (glass fiber, UV-resistant, etc.)
- DIN, ISO, and CE certified production standards
✅ Ideal for importers, distributors, and OEM brands looking to stand out in competitive markets.
🌍 Global Supply and Wholesale Support
ifanpro is a China-based pipe factory with global export experience. We support:
- Large-volume wholesale orders
- Distributor partnerships in Europe, the Middle East, South America, and Africa
- Fast lead times and flexible MOQ
- Engineering support for custom fittings
Visit our site: 🌐 www.ifanpro.com to browse our product range or request a quote for your specific bouchon-réduit needs.
🛡️ Why Choose ifanpro for Bouchon-réduit – 407?
Advantage | Benefit |
---|---|
✅ Factory-direct pricing | No middleman, better margins |
✅ 15+ years of experience | Trusted by buyers in 60+ countries |
✅ Certified quality | DIN, ISO, and CE approvals |
✅ Technical support | 3D drawings, samples, and custom molds |
✅ Conclusion
The bouchon-réduit – 407 fitting is a small but critical component in any PPR piping system. Its dual function as a reducer and end cap makes it ideal for efficient, leak-proof system design. By choosing a custom manufacturer like ifanpro, you ensure precise specifications, long-term durability, and full compliance with international standards.
If you’re seeking reliable suppliers of customized bouchon-réduit fittings in bulk, reach out to ifanpro for a quote today.
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