Headers
Customized insulation
MI Series
Engineered for High-Performance R410a & Next-Generation Refrigerant VRF Networks
227 Enterprise Pvt. Ltd. manufactures MI Series Branch Pipes for efficient VRF installations, connecting multiple indoor units to a single outdoor unit with balanced refrigerant flow. Provided with precision copper Y-joints and reducers, they allow quicker installation, reduce site brazing, and ensure secure, leak-proof performance.
To improve efficiency and control condensation, 227 Enterprise Pvt. Ltd. offers the MI Series Branch Pipe with XLPE and NBR insulation. These options prevent sweating at VRF Y-joints, maintain thermal stability, and deliver reliable long-term performance.
MI
Series
FEATURES OF MI Series
Easy to Install
Pressure Tested at 5.2 MPA
100% leak-proof Construction
RoHS & CE Compliant
Robust Design Built
Product specification
| Model Number | Pipe | Pipe A (ID) | Pipe B (ID) | Pipe C (ID) |
|---|---|---|---|---|
| Pi-FQZHN-01 | Gas Side | 19.05 (3/4) – 15.88 (5/8) | 15.88 (5/8) – 12.70 (1/2) | 15.88 (5/8) – 12.70 (1/2) |
| Liquid Side | 9.52 (3/8) | 9.52 (3/8) – 6.35 (1/4) | 6.35 (1/4) | |
| Pi-FQZHN-02 | Gas Side | 22.22 (7/8) – 25.4(1) | 19.05 (3/4) – 15.88 (5/8) – 12.70 (1/2) | 19.05 (3/4) – 15.88 (5/8) |
| Liquid Side | 12.70 (1/2) – 9.52 (3/8) | 9.52 (3/8) – 6.35 (1/4) | 9.52 (3/8) – 6.35 (1/4) | |
| Pi-FQZHN-03 | Gas Side | 28.58 (1-1/8)-31.75 (1-1/4) | 22.22 (7/8) – 19.05 (3/4) – 15.88 (5/8) | 22.22 (7/8) – 19.05 (3/4) |
| Liquid Side | 15.88 (5/8) 19.05 (3/4) | 12.70 (1/2) – 9.52 (3/8) – 6.35 (1/4) | 12.70 (1/2)-9.52 (3/8) | |
| Pi-FQZHN-04 | Gas Side | 34.93 (1-3/8) – 38.1 (1-1/2) | 28.58 (1-1/8) – 22.22 (7/8) – 19.05 (3/4) | 28.58 (1-1/8) – 22.22 (7/8) |
| Liquid Side | 19.05 (3/4)-22.22 (7/8) | 15.88 (5/8) – 12.70 (1/2) – 9.52 (3/8) | 15.88 (5/8) 12.70 (1/2) | |
| Pi-FQZHN-05 | Gas Side | 41.28 (1-5/8)-44.45 (1-3/4) | 44.45 (1-3/4)-41.28 (1-5/8) – 34.93 (1-3/8) | 41.28 (1-5/8)- 34.93 (1-3/8) |
| Liquid Side | 22.22 (7/8)-25.4 (1) | 19.05 (3/4) -15.88 (5/8) – 12.70 (1/2) | 19.05 (3/4) – 15.88 (5/8) | |
| Pi-FQZHN-06 | Gas Side | 63.5 (2-1/2)-54 (2) | 54(2)-63.5 (2-1/2) – 41.28 (1-5/8) | 41.28 (1-5/8) – 34.93 (1-3/8) |
| Liquid Side | 25.4 (1) 22.22 (7/8) | 22.22 (7/8) – 25.4 (1) – 19.05 (3/4) | 19.05 (3/4) 15.88 (5/8) | |
| Pi-FQZHN-07 | Gas Side | 63.5 (2-1/2)-54 (2) | 54 (2)-63.5 (2-1/2) – 41.28 (1-5/8) | 41.28 (1-5/8) – 34.93 (1-3/8) |
| Liquid Side | 31.75 (1-1/4) – 28.58 (1-1/8) | 28.58 (1-1/8) – 22.22 (7/8) – 19.05 (3/4) | 22.22 (7/8) – 19.05 (3/4) – 15.88 (5/8) |
OUR Products
Universal
Branch Pipe
VRF Y Branch for VRF Air Conditioning Systems Compatible with R410 Refrigerant.
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DA
Series
Refrigerant Branch Piping Kits for VRV / VRF Systems Operating with R410 Refrigerant.
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ME
Series
VRF Tee Joints for VRF Air Conditioning Systems Compatible with R410 Refrigerant.
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TA
Series
Refrigerant Branch Piping Kits for VRF Systems Operating with R410 Refrigerant
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GR
Series
VRF Y Branch Refrigerant Distribution Kits for VRV / VRF Systems Operating with R410.
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BSR
Series
VRF Refrigerant Branch Piping Kits for VRF Air Conditioning Systems Compatible with R410A Refrigerant.
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HAE
Series
VRF Refrigerant Branch Piping Kit for VRF Air Conditioning Systems Compatible with R410 Refrigerant.
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CL
Series
VRF Y Branch for VRF Air Conditioning Systems Compatible with R410 Refrigerant.
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LNX
Series
VRF Y Joints for VRF Air Conditioning Systems Compatible with R410 Refrigerant.
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MHI
Series
VRF Refrigerant Branch Piping Kit for VRF Air Conditioning Systems Compatible with R410 Refrigerant
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SAM
Series
VRF Y Branch for VRF Air Conditioning Systems Compatible with R410 Refrigerant.
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PNS
Series
VRF Y Joints for VRF Air Conditioning Systems Compatible with R410 Refrigerant.
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TRN
Series
VRF Y Branch for VRF Air Conditioning Systems Compatible with R410 Refrigerant.
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AX
Series
Engineered for high-performance R410a and next-generation-ready VRFXR ecosystems
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VRF Y
Joint
Precision Manufactured VRF Y Joints for Optimal Laminar Refrigerant Flow and Efficient System Performance.
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VRF Branch
Piping
Precision Manufactured VRF Y Joints for Optimal Laminar Refrigerant Flow and Efficient System Performance.
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VRF Refrigerant
Branch Piping
Manufactured for Optimal Refrigerant Flow Distribution in VRF Systems Working on R410 Refrigerant.
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SAM
Headers
Precision Manufactured VRF Copper Header for VRF Systems Compatible with R410 Refrigerant.
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TA
Headers
Precision Manufactured VRF Copper Header for VRF Systems Compatible with R410 Refrigerant.
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Customized
Headers
Tailor-Made VRF Copper Header Manufacturing as per Project Requirements.
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Copper Compression
T Fitting
Versatile Copper Compression T Fitting engineered for leak-free branches in refrigerant line sets.
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EPS
Insulation
Economical, closed-cell insulation for thermal and condensation control.
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NBR
Insulation
Flexible, fire-resistant nitrile rubber insulation for demanding applications.
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XLPE
Insulation
Cross-linked polyethylene foam for superior moisture and thermal resistance.
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Customized
Insulation
Bespoke insulation solutions cut and tailored to your components.
View DetailsWhy 227 Enterprise
Testimonial's
Switching to 227's MI Series eliminated call-backs for leaks on our high-rise projects.
Project Director, Luxury Real Estate Developer,
UAEThe traceability coding gives our clients unmatched confidence in system quality.
Chief Engineer, Five-Star Hotel Chain,
IndiaThe fit is perfect, OEM to renowned brands, making our procurement streamlined.
Head Procurement, MEP Consultancy,
Saudi ArabiaHigh-quality insulation that does not sweat even in the north-east windy coast.
Operations Manager, Mall Management Group,
Southeast Asia.On-time delivery and reliable performance make our large-scale projects on time.
Technical Manager, Government Infrastructure Agency,
QatarOur Blogs
FAq's
Does MI Series work with all major VRF/VRV OEM brands?
Yes, MI Series is accuracy-designed to be fully compatible with all major VRF/VRV systems. Our joints meet exact OEM specifications to ensure seamless integration, optimal refrigerant flow, and reliable performance in both new installations and existing system architectures for consistent results.
What makes your joints 100% leak-proof?
We’re able to stand behind our leak-free claim because of how carefully each joint is made and checked. The hydroforming process shapes the joint in one continuous form, so the seams are naturally stronger and more uniform. Once that’s done, every single piece is put through a 5.2 MPa pressure test, not randomly, but individually. It’s a tougher standard than what’s usually followed, but it means the joint is ready for real operating conditions and will keep performing without giving you trouble over the long run.
Does the insulation comply with the fire safety of a commercial building?
Yes. Our normal insulation is the self-extinguishing UV-stabilized fire-retardant XPLE, which is of high safety standards. In projects that have more rigid codes, we will provide optional insulation with higher fire ratings. This guarantees maximum adherence to international safety standards in commercial, high-rise and other vital building projects that need certified fire-safe materials.
What is the advantage of the Traceability Marking of your products?
The laser-etched traceability marking provides a unique code for each joint, enabling complete tracking back to its production batch, copper source, and pressure test records. This offers verifiable documentation for warranties, simplifies maintenance audits, and adds a layer of quality accountability that we fully stand behind as the manufacturer.
How do your joints contribute to overall VRF system efficiency?
Precision-bored smooth internal pathways of our joints enhance VRF efficiency, which reduces turbulence and pressure drop. This is to ensure the optimum distribution of refrigerant to all indoor units to enable them to work to their intended capacity. This minimizes the compressor load and the overall energy performance and operational efficiency of the entire system.
What is your lead time for large or custom project orders?
We maintain a strategic inventory of standard configurations for quick dispatch. In large-scale or custom manufacturing, our special manufacturing line provides efficient turnaround. When our sales team reviews the project, you will receive firm, reliable timelines that fit within your construction schedule, which will not delay critical path installation work by having the materials available.
Can you provide customized MI Series assemblies for non-standard layouts?
Yes, customization is one of the main competencies. We design and manufacture custom header systems, special pipe size reducers, and custom joint designs to fit into intricate system designs or older equipment interfaces perfectly. This will guarantee maximum compatibility and performance without any reduction in our high standards of material quality or manufacturing.
What is your pressure testing at 5.2 Mpa in comparison with your competitors?
We test every component at 5.2 MPa (754 psi) because reliability and safety aren’t things we’re willing to leave to chance. While this kind of pressure testing isn’t standard practice across the industry, we believe it’s important to check each piece under conditions that reflect real, demanding operation. Doing so gives added assurance that the joints will hold up in critical applications, stay structurally sound over time, and continue performing reliably in commercial installations where failure simply isn’t an option.
What are the certifications of your products and manufacturing process?
The MI Series meets both RoHS and CE compliance requirements. It’s produced in a facility that follows a certified Quality Management System, so every batch is made to the same controlled standards. Where projects call for it, we can also supply AS 4041 Pressure Piping certification, along with the supporting material test certificates and compliance documents. This helps consultants and contractors move through technical reviews, submissions, and regulatory approvals with much less back-and-forth, especially on international jobs.
What is your post-purchase technical support?
Our after-sales services involve troubleshooting. For large projects, we offer on-site project advice to ensure optimal installation practices. We also assist with product purchase, through to commissioning and handover of the final system.