227 Enterprise – VRF Joints and Refrigerant Copper Fittings

Headers

Copper Components

VRF Refrigerant Branch Piping

Advanced VRF Refrigerant Branch Piping for All R410A Systems

227 Enterprise manufactures and develops high-quality VRF refrigerant branch pipes compatible with any VRF system using R410A. The VRF Y joints are all precision-designed and multi-step manufactured, making them suitable in a variety of capacities.
High-quality copper fittings and tailor-made insulation – either XLPE or Class O nitrile rubber are provided as kits. The small and smooth design fits in small spaces and is efficient, reliable, and simple to install.

VRF Refrigerant
Branch Piping

FEATURES OF VRF Refrigerant Branch Piping

Easy to Install

Easy to Install

Pressure Tested at 5.2 MPA

Pressure Tested at 5.2 MPA

100% leak proof

100% leak proof

ROHS & CE Compliant

ROHS & CE Compliant

Robust Design

Robust Design

Product specification (dummy)

Pipe-A Pipe-B Pipe-C
Pi-KHRP-22T (Gas Side) 12.7 (1/2) – 15.88 (5/8) – 19.05 (3/4) 15.88 (5/8) – 12.7 (1/2) 15.88 (5/8) – 12.7 (1/2)
Pi-KHRP-22T (Liquid Side) 9.52 (3/8) 9.52 (3/8) – 6.35(1/4) 9.52 (3/8) – 6.35(1/4)
Pi-KHRP-33T (Gas Side) 22.22 (7/8) – 19.05 (3/4) 19.05 (3/4) – 15.88 (5/8) 15.88 (5/8) – 12.7 (1/2)
Pi-KHRP-33T (Liquid Side) 9.52 (3/8) 9.52 (3/8) – 6.35 (1/4) 9.52 (3/8) – 6.35 (1/4)
Pi-KHRP-72T (Gas Side) 31.75 (11/4) -28,58 ( 11/8) – 25.4 (1) 25.4 (1) – 19.05(3/4) – 15.88 (5/8) 19.05 (3/4) – 15.88 (5/8) – 12.7 (1/2)
Pi-KHRP-72T (Liquid Side) 15.81 (5/8) – 12.7 (1/2) 12.7 (1/2) – 9.52 (3/8) 12.7 (1/2) – 9.52 (3/8) – 6.35 (1/4)
Pi-KHRP-73T (Gas Side) 38.10 (11/2) – 31.75 (11/4) 31.75 (11/4) – 28.58 (11/8) – 25.4 (1) 25.4 (1) – 19.05 (3/4) – 15.88 (5/8)
Pi-KHRP-73T (Liquid Side) 15.88 (5/6) – 19.05 (3/4) 19.05 (3/4) – 15.88 (5/8) – 12.7 (1/2) 15.88 (5/8) – 12.7 (1/2) – 9.52 (3/8)

OUR Products

Universal<br> Branch Pipe

Universal
Branch Pipe

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

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DA<br> Series

DA
Series

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

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ME<br> Series

ME
Series

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

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MI<br> Series

MI
Series

VRF Branch Pipe Kits for Reliable Refrigerant Distribution in VRF Systems

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TA<br> Series

TA
Series

Refrigerant Branch Piping Kits for VRF Systems Operating with R410 Refrigerant

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GR<br> Series

GR
Series

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

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BSR<br> Series

BSR
Series

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

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LG<br> Series

LG
Series

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

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HIT<br> Series

HIT
Series

VRF Y Branch Kits Engineered for R410 HVAC Applications.

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HAE<br> Series

HAE
Series

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

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CL<br> Series

CL
Series

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

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LNX<br> Series

LNX
Series

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

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MHI<br> Series

MHI
Series

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

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SAM <br>Series

SAM
Series

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

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PNS <br> Series

PNS
Series

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

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TRN <br> Series

TRN
Series

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

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VRF Y<br> Joint

VRF Y
Joint

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

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VRF Branch <br> Piping

VRF Branch
Piping

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

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VRF Refrigerant<br> Branch Piping

VRF Refrigerant
Branch Piping

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

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SAM <br> Headers

SAM
Headers

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

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TA <br> Headers

TA
Headers

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

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Customized <br> Headers

Customized
Headers

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

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Copper Compression <br> T Fitting

Copper Compression
T Fitting

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

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Copper Y  <br> Fitting

Copper Y
Fitting

High-flow copper fittings for balanced refrigerant division.

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Copper <br>Strainers

Copper
Strainers

Inline protection against system contamination and debris.

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Copper <br>Mufflers

Copper
Mufflers

Engineered components for reducing operational noise and vibration.

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Copper <br>Stubs

Copper
Stubs

Short-length copper connectors for system integration and brazing.

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Commercial <br>Tees

Commercial
Tees

Heavy-duty fittings for main line distribution branches.

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Copper <br>Tee Joint

Copper
Tee Joint

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

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Y-Type  <br> Distributors

Y-Type
Distributors

Advanced distributors for precise refrigerant flow management.

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Unbrazed U & Y  <br> Fittings

Unbrazed U & Y
Fittings

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

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Copper Y  <br> Joints

Copper Y
Joints

Durable copper joints for reliable refrigerant flow splitting.

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Tubular  <br> Assemblies

Tubular
Assemblies

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

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EPS  <br> Insulation

EPS
Insulation

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

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NBR  <br> Insulation

NBR
Insulation

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

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XLPE  <br> Insulation

XLPE
Insulation

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

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Customized  <br> Insulation

Customized
Insulation

Bespoke insulation solutions cut and tailored to your components.

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Why 227 Enterprise

In a VRF system, the central nervous system is provided by the branch piping. We are different to generic suppliers as we work on custom-engineered components. It allows us a very close partnership with OEMs, to develop joints which are not only compatible, but also optimized to system dynamics and performance.

Testimonial's

Our Blogs

FAq's

What is VRF Refrigerant Branch Piping?

VRF Refrigerant Branch Piping is the network of pre-insulated copper tubes and precision fittings, like Y-joints and headers, that distribute refrigerant from a single outdoor unit to multiple indoor units. Its hydraulically balanced design ensures efficient, turbulence-free flow and proper oil return, which is critical for system capacity, efficiency, and reliable zoned comfort control.

How do you ensure a leak-proof installation?

We ensure leak-proof integrity through superior practices: using nitrogen purge during brazing to prevent oxidation, performing rigorous post-installation pressure testing (e.g., 550 PSI for 24 hours), and pulling a deep vacuum below 500 microns. These steps verify the system's seal against decades of thermal cycling and vibration.

What makes your piping more efficient?

Our piping features a hydraulically balanced design with precision-calcified diameters and smooth inner walls to minimize pressure drop and turbulence. It gives consistent refrigerant flow to all indoor units, allowing the system's inverter compressor to operate at optimal efficiency, which reduces energy consumption and enhances overall system performance and stability.

Why is the high-pressure test (e.g., 5.2 MPa) so important?

Testing at pressures far exceeding normal operating conditions (like 5.2 MPa) is crucial. It proves the joint's integrity under extreme stress, simulating a lifetime of pressure fluctuations, thermal expansion, and vibration. This proactive test is the definitive method for guaranteeing a permanent, leak-free seal for the entire system lifecycle.

What are the key insulation requirements?

Insulation must be closed-cell, with a continuous vapor barrier, and rated for the system's high refrigerant line temperatures (often >120°C). Proper thickness prevents energy loss and condensation, while fire-resistant ratings (like Class O) are needed for safety in plenums. Correct installation is vital for long-term performance and preventing mold.

How does your piping design simplify on-site installation for contractors?

Our kits feature pre-swaged connections, integrated flare nuts, and clear identification markings. This design drastically reduces the number of brazing points required on-site, minimizing both the potential for human error and installation time. The result is faster project completion, lower labor costs, and enhanced reliability from factory-controlled joint integrity.

Are your branch piping components compatible with major OEM systems?

Yes, our components are engineered for full compatibility with all major R410A and R32 VRF systems. We offer OEM-specific series that match the exact hydraulic balance and performance characteristics of your brand and model, ensuring seamless integration and preserving the manufacturer's intended system efficiency and warranty conditions without any compromise.

What certifications guarantee the quality of your piping products?

Our products are manufactured on an ISO 9001:2015 certified line, ensuring consistent quality control. They comply with international ROHS and CE directives for safety and environmental standards. We enforce strict raw material certification and maintain full traceability for every component batch, guaranteeing reliability and performance from production to installation.

Can you provide customized piping solutions for unique project layouts?

Absolutely. We specialize in custom engineering for complex projects. Our team designs tailored solutions, such as custom multi-port headers, specific separator tube lengths, and unique assembly configurations, to meet spatial constraints or performance demands of non-standard installations, ensuring optimal system function even in the most challenging architectural environments.

What technical support do you offer after the sale?

We provide comprehensive after-sales support, including detailed datasheets, step-by-step installation guides, and direct access to our engineering team for consultation. This ensures proper installation, system optimization, and long-term reliability. Our commitment is to be a technical partner for the lifespan of your VRF system.