GR Series

Engineered with precision-calibrated Y-joints, TA Series minimizes turbulence and pressure degradation across R410A and R32 systems.

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"Precision at the Point Where Refrigerant Splits."

In a VRF system, when refrigerant leaves the outer unit, it has one job: to provide to each connected zone exactly in proportion, at a suitable pressure, without a drop of loss. That handoff happens at the branch. And the GR Series is built 100% around doing that handoff well. All joints are made in-house using certified copper and brazed with 2% silver brazing for a leak-proof bond strong enough for prolonged commercial and industrial service. Chamfered ends line up true on the first pass, compatible reducers make on-site fitting fast and reliable, and a choice of XLPE or NBR insulation enables the junction to match the thermal requirements of the installation—hot climate, high humidity, or round-the-clock operation.

Each joint has its own traceability mark, so any project engineer or procurement team can trace any unit back to its production batch, material certificate or QC record – the answer is stamped right on the product, not hidden in paperwork. That accountability, along with construction engineered to disappear into the system as it should, is what GR Series provides on every job: no pressure imbalance, no inconsistent cooling across zones, no callbacks — just steady, dependable refrigerant flow, joint after joint, floor after floor.

Product Features

Product Specification

Model	Pipe	Pipe A (ID)	Pipe B (ID)	Pipe C (ID)
Pi-FQ01A/A	Gas Side	19.05 (3/4) – 15.88 (5/8) – 12.7 (1/2)	15.88 (5/8) – 12.7 (1/2) – 9.52 (3/8)	15.88 (5/8) – 12.7 (1/2)
Pi-FQ01A/A	Liquid Side	9.52 (3/8)	9.52 (3/8) – 6.35 (1/4)	9.52 (3/8) – 6.35 (1/4)
Pi-FQ01B/A	Gas Side	19.05 (3/4) – 22.22 (7/8)	19.05 (3/4) – 15.88 (5/8)	15.88 (5/8) – 12.7 (1/2)
Pi-FQ01B/A	Liquid Side	9.52 (3/8) – 12.7 (1/2)	9.52 (3/8) – 6.35 (1/4)	9.52 (3/8) – 6.35 (1/4)
Pi-FQ02A	Gas Side	22.22 (7/8) – 25.4 (1) – 28.58 (1-1/8)	28.58 (1-1/8) – 25.4 (1) – 22.2 (7/8) – 19.05 (3/4)	19.05 (3/4) – 15.88 (5/8) – 12.7 (1/2) – 9.52 (3/8)
Pi-FQ02A	Liquid Side	9.52 (3/8) – 12.7 (1/2) – 15.88 (5/8)	12.7 (1/2) – 9.52 (3/8) – 6.35 (1/4)	15.88 (5/8) – 12.7 (1/2) – 9.52 (3/8)
Pi-FQ03A	Gas Side	34.93 (1-3/8) – 38.10 (1-1/2)	41.28 (1-5/8) – 34.93 (1-3/8) – 28.58 (1-1/8)	28.58 (1-1/8) – 25.4 (1) – 22.22 (7/8) – 19.05 (3/4)
Pi-FQ03A	Liquid Side	15.88 (5/8) – 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)
Pi-FQ04A	Gas Side	41.7 (1-5/8) – 54.3 (2) – 44.7 (1-3/4)	54.3 (2) – 41.7 (1-5/8) – 34.93 (1-3/8)	34.93 (1-3/8) – 28.58 (1-1/8) – 25.4 (1)
Pi-FQ04A	Liquid Side	19.05 (3/4) – 22.22 (7/8)	22.22 (7/8) – 19.05 (3/4)	19.05 (3/4) – 15.88 (5/8) – 12.7 (1/2)

Model	Pipe	Pipe A (ID)	Pipe B (ID)	Pipe C (ID)
Pi-FQ01A/A	Gas Side	19.05 (3/4) - 15.88 (5/8) - 12.7 (1/2)	15.88 (5/8) - 12.7 (1/2) - 9.52 (3/8)	15.88 (5/8) - 12.7 (1/2)
Pi-FQ01A/A	Liquid Side	9.52 (3/8)	9.52 (3/8) - 6.35 (1/4)	9.52 (3/8) - 6.35 (1/4)
Pi-FQ01B/A	Gas Side	19.05 (3/4) - 22.22 (7/8)	19.05 (3/4) - 15.88 (5/8)	15.88 (5/8) - 12.7 (1/2)
Pi-FQ01B/A	Liquid Side	9.52 (3/8) - 12.7 (1/2)	9.52 (3/8) - 6.35 (1/4)	9.52 (3/8) - 6.35 (1/4)
Pi-FQ02A	Gas Side	22.22 (7/8) - 25.4 (1) - 28.58 (1-1/8)	28.58 (1-1/8) - 25.4 (1) - 22.2 (7/8) - 19.05 (3/4)	19.05 (3/4) - 15.88 (5/8) - 12.7 (1/2) - 9.52 (3/8)
Pi-FQ02A	Liquid Side	9.52 (3/8) - 12.7 (1/2) - 15.88 (5/8)	12.7 (1/2) - 9.52 (3/8) - 6.35 (1/4)	15.88 (5/8) - 12.7 (1/2) - 9.52 (3/8)
Pi-FQ03A	Gas Side	34.93 (1-3/8) - 38.10 (1-1/2)	41.28 (1-5/8) - 34.93 (1-3/8) - 28.58 (1-1/8)	28.58 (1-1/8) - 25.4 (1) - 22.22 (7/8) - 19.05 (3/4)
Pi-FQ03A	Liquid Side	15.88 (5/8) - 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)
Pi-FQ04A	Gas Side	41.7 (1-5/8) - 54.3 (2) - 44.7 (1-3/4)	54.3 (2) - 41.7 (1-5/8) - 34.93 (1-3/8)	34.93 (1-3/8) - 28.58 (1-1/8) - 25.4 (1)
Pi-FQ04A	Liquid Side	19.05 (3/4) - 22.22 (7/8)	22.22 (7/8) - 19.05 (3/4)	19.05 (3/4) - 15.88 (5/8) - 12.7 (1/2)

Why 227 Enterprise

A single outdoor unit that serves dozens of indoor units across a building is entirely dependent on the branch piping to split the refrigerant correctly – do that wrong and you have uneven cooling, pressure loss and a system fighting itself. If you get it properly, the whole building functions as it was supposed to.

That’s the standard the GR Series is held to. Each joint carefully balances refrigerant distribution, minimizes pressure losses and enables correct load management across all connected zones – keeping huge commercial buildings running 24/7, stable, efficient and without interruption.

227 Enterprise manufactures GR Series joints from scratch, from raw copper to finished, pressure-tested component – resulting in tighter quality control, faster turnaround and a product supported by a manufacturer that stands behind every joint it manufactures. When you specify GR Series you are not just buying a fitment. You’re buying one fewer item to worry about, for the life of the system.

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Product Faqs

What is the price of 227 Enterprise GR Series Y Branch?

The price of the GR series varies on the model required, pipe size, quantity for the project and the current copper price. Since copper prices fluctuate often, we will provide a quote specifically for your project. For updated prices kindly send your BOQ or details to 227 Enterprise Pvt. Ltd.

What is the largest pipe size that is allowed for the GR Series?

From the piping connection perspective, the largest copper pipe that can be connected to the GR Series VRF Branch Joint is 54 mm OD (Outer Diameter). Thus, the GR Series is perfect for high capacity VRF applications including commercial buildings, hospitals, hotels, retail malls, IT parks and industrial facilities. Optimum performance is achieved through proper system design and installation and by adhering to the VRF manufacturer’s piping guidelines.

What material are the joints of the GR Series made of?

GR Series VRF joints are made from high quality refrigeration grade copper and manufactured under controlled production methods to ensure constant dimensional precision.