227 Enterprise – VRF Joints and Refrigerant Copper Fittings

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

Easy to Install

Pressure Tested at 5.2 MPA

Pressure Tested at 5.2 MPA

100% leak-proof Construction

100% leak-proof Construction

RoHS & CE Compliant

RoHS & CE Compliant

Robust Design Built

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<br> Branch Pipe

Universal
Branch Pipe

VRF Y Branch for VRF Air Conditioning Systems Compatible with R410 Refrigerant.

View Details
DA<br> Series

DA
Series

Refrigerant Branch Piping Kits for VRV / VRF Systems Operating with R410 Refrigerant.

View Details
ME<br> Series

ME
Series

VRF Tee Joints for VRF Air Conditioning Systems Compatible with R410 Refrigerant.

View Details
MI<br> Series

MI
Series

VRF Branch Pipe Kits for Reliable Refrigerant Distribution in VRF Systems

View Details
TA<br> Series

TA
Series

Refrigerant Branch Piping Kits for VRF Systems Operating with R410 Refrigerant

View Details
GR<br> Series

GR
Series

VRF Y Branch Refrigerant Distribution Kits for VRV / VRF Systems Operating with R410.

View Details
BSR<br> Series

BSR
Series

VRF Refrigerant Branch Piping Kits for VRF Air Conditioning Systems Compatible with R410A Refrigerant.

View Details
LG<br> Series

LG
Series

VRF Branch Pipe Kits for Reliable Refrigerant Distribution in VRF Systems.

View Details
HIT<br> Series

HIT
Series

VRF Y Branch Kits Engineered for R410 HVAC Applications.

View Details
HAE<br> Series

HAE
Series

VRF Refrigerant Branch Piping Kit for VRF Air Conditioning Systems Compatible with R410 Refrigerant.

View Details
CL<br> Series

CL
Series

VRF Y Branch for VRF Air Conditioning Systems Compatible with R410 Refrigerant.

View Details
LNX<br> Series

LNX
Series

VRF Y Joints for VRF Air Conditioning Systems Compatible with R410 Refrigerant.

View Details
MHI<br> Series

MHI
Series

VRF Refrigerant Branch Piping Kit for VRF Air Conditioning Systems Compatible with R410 Refrigerant

View Details
SAM <br>Series

SAM
Series

VRF Y Branch for VRF Air Conditioning Systems Compatible with R410 Refrigerant.

View Details
PNS <br> Series

PNS
Series

VRF Y Joints for VRF Air Conditioning Systems Compatible with R410 Refrigerant.

View Details
TRN <br> Series

TRN
Series

VRF Y Branch for VRF Air Conditioning Systems Compatible with R410 Refrigerant.

View Details
AX <br> Series

AX
Series

Engineered for high-performance R410a and next-generation-ready VRFXR ecosystems

View Details
VRF Y<br> Joint

VRF Y
Joint

Precision Manufactured VRF Y Joints for Optimal Laminar Refrigerant Flow and Efficient System Performance.

View Details
VRF Branch <br> Piping

VRF Branch
Piping

Precision Manufactured VRF Y Joints for Optimal Laminar Refrigerant Flow and Efficient System Performance.

View Details
VRF Refrigerant<br> Branch Piping

VRF Refrigerant
Branch Piping

Manufactured for Optimal Refrigerant Flow Distribution in VRF Systems Working on R410 Refrigerant.

View Details
SAM <br> Headers

SAM
Headers

Precision Manufactured VRF Copper Header for VRF Systems Compatible with R410 Refrigerant.

View Details
TA <br> Headers

TA
Headers

Precision Manufactured VRF Copper Header for VRF Systems Compatible with R410 Refrigerant.

View Details
Customized <br> Headers

Customized
Headers

Tailor-Made VRF Copper Header Manufacturing as per Project Requirements.

View Details
Copper Compression <br> T Fitting

Copper Compression
T Fitting

Versatile Copper Compression T Fitting engineered for leak-free branches in refrigerant line sets.

View Details
Copper Y  <br> Fitting

Copper Y
Fitting

High-flow copper fittings for balanced refrigerant division.

View Details
Copper <br>Strainers

Copper
Strainers

Inline protection against system contamination and debris.

View Details
Copper <br>Mufflers

Copper
Mufflers

Engineered components for reducing operational noise and vibration.

View Details
Copper <br>Stubs

Copper
Stubs

Short-length copper connectors for system integration and brazing.

View Details
Commercial <br>Tees

Commercial
Tees

Heavy-duty fittings for main line distribution branches.

View Details
Copper <br>Tee Joint

Copper
Tee Joint

Engineered for fast, balanced, and leak-proof main line splits.

View Details
Y-Type  <br> Distributors

Y-Type
Distributors

Advanced distributors for precise refrigerant flow management.

View Details
Unbrazed U & Y  <br> Fittings

Unbrazed U & Y
Fittings

Pre-fabricated joints for simplified, on-site assembly.

View Details
Copper Y  <br> Joints

Copper Y
Joints

Durable copper joints for reliable refrigerant flow splitting.

View Details
Tubular  <br> Assemblies

Tubular
Assemblies

Pre-assembled tubing modules for faster, error-free installation.

View Details
EPS  <br> Insulation

EPS
Insulation

Economical, closed-cell insulation for thermal and condensation control.

View Details
NBR  <br> Insulation

NBR
Insulation

Flexible, fire-resistant nitrile rubber insulation for demanding applications.

View Details
XLPE  <br> Insulation

XLPE
Insulation

Cross-linked polyethylene foam for superior moisture and thermal resistance.

View Details
Customized  <br> Insulation

Customized
Insulation

Bespoke insulation solutions cut and tailored to your components.

View Details

Why 227 Enterprise

Enterprise-grade VRF deployments demand absolute reliability, not component-level compromises. 227 Enterprise engineers MI Series REF Joints for 227 operations where uptime, refrigerant integrity, and thermal consistency impact asset performance. Precision manufacturing, configurable reducers, and insulation minimize failure points, accelerate installation timelines, and position MI Series as the preferred choice for consultants and OEMs.

Testimonial's

Our 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.