pns Series

Designed for large VRF systems where every branch matters. Precision-fit components provide balanced refrigerant flow, faster installation and reliable performance in each zone.

“Where Big VRF Systems Can't Afford a Leak.”

Scale impacts the math of a VRF system. Add enough indoor units to a single outdoor unit, as a hospital wing, an IT park or a shopping mall might require, and the margin for error at each branch point quickly reduces. That size is designed for the PNS Series Refrigerant Branch Piping Kit. The system is designed to work with R410A and R32 refrigerants, with precision-machined copper Y-joints on the suction line matching those on the liquid line, balancing the refrigerant flow over both circuits rather than just one. Each kit includes appropriately sized copper reducers so installation is simply a matter of fitting factory-matched components instead of making up a transition on site – smooth integration, accurate fitment, simplified installation, and dependable performance across a truly wide range of HVAC applications.

That fitting discipline extends all the way through the kit. A universal Multi-Step design supports all major OEM VRF/VRV systems’ pipe diameters, so installers don’t need to source extra fittings mid-project to bridge a size difference. Each branch is pre-assembled as a tubing module, saving time during installation and minimizing the errors associated with field-fabricated piping. Joints are brazed with 2% silver BCuP-6 rod resulting in a strong consistent bond and each unit is pressure tested individually at 5.2 MPa to guaranty totally leak free performance before delivery. The insulation is fire-grade XLPE and Class O NBR, which prevent the formation of condensation on the copper and keep the joints dry and operational even under continuous system pressure. The result is a building that is durable enough to provide energy efficiency, reduced maintenance requirements and reliable HVAC system performance for years to come—not just during the warranty term.

Product Features

Product Specification

Model Number Pipe Pipe A (ID) Pipe B (ID) Pipe C (ID)
Pi-CZ-P680BK2 Gas Side 28.58 (1-1/8) R – 25.40 (1) – 22.22 (7/8) – 19.05 (3/4) R – 15.88 (5/8) – 12.70 (1/2) 28.58 (1-1/8) R – 25.40 (1) – 22.22 (7/8) – 19.05 (3/4) R – 15.88 (5/8) – 12.70 (1/2) 28.58 (1-1/8) R – 25.40 (1) – 22.22 (7/8) – 19.05 (3/4)
Liquid Side 15.88 (5/8) R – 12.7 (1/2) – 9.52 (3/8) – 6.35 (1/4) 15.88 (5/8) R – 12.7 (1/2) – 9.52 (3/8) – 6.35 (1/4) 15.88 (5/8) R – 12.7 (1/2) – 9.52 (3/8)
Pi-CZ-P680PJ2 Gas Side 28.58 (1-1/8) R – 31.75 (1-1/4), R – 25.40 (1) 28.58 (1-1/8) R – 25.40(1) – 22.22 (7/8) – 19.05 (3/4), 28.58 (1-1/8) R – 25.40(1) – 22.22 (7/8) – 19.05 (3/4),
Liquid Side 15.88 (5/8) R – 12.7 (1/2) – 9.52 (3/8) R – 19.05 (3/4) – 22.22 (7/8) 15.88 (5/8) R – 12.7 (1/2) – 9.52 (3/8) R – 19.05 (3/4) 15.88 (5/8)R – 12.7 (1/2) – 9.52 (3/8)
Pi-CZ-P160BK2 Gas Side 15.88 (5/8) R – 19.05 (3/4) 15.88 (5/8) R – 19.05 (3/4) R – 12.70 (1/2) 15.88 (5/8) R – 12.70 (1/2)
Liquid Side 12.70 (1/2) R – 9.52 (3/8) 12.70 (1/2) R – 9.52 (3/8) – 6.35 (1/4) 12.70 (1/2) R – 9.52 (3/8) – 6.35 (1/4)
Pi-CZ-P1350BK2 Gas Side 31.75 (1-1/4) R – 28.58 (1-1/8) – 25.40 (1) R – 38.10 (1-1/2) 31.75 (1-1/4) R – 28.58 (1-1/8) – 25.40 (1) R – 38.10(1-1/2) 31.75 (1-1/4) R – 28.58 (1-1/8) – 25.40 (1) R – 22.22 (7/8) – 19.05 (3/4) R – 15.88 (5/8) – 12.70 (1/2)
Liquid Side 15.88 (5/8) R – 19.05 (3/4) 15.88 (5/8) R – 19.05 (3/4) R – 12.70 (1/2) 15.88 (5/8) R – 12.70 (1/2) – 9.52 (3/8) – 6.35 (1/4)
Pi-CZ-P1350PJ2 Gas Side 28.58 (1-1/8) R – 25.40 (1) R – 31.75 (1-1/4) 28.58 (1-1/8) R – 25.40 (1) – 22.22 (7/8) – 19.05 (3/4) 28.58 (1-1/8) R – 25.40 (1) – 22.22 (7/8) – 19.05 (3/4)
Liquid Side 15.88 (5/8) R – 12.7 (1/2) – 9.52 (3/8) R – 19.05 (3/4) – 22.22 (7/8) 15.88 (5/8) R – 12.7 (1/2) – 9.52 (3/8), R – 19.05 (3/4) 15.88 (5/8) R – 12.7 (1/2) – 9.52 (3/8)

Why 227 Enterprise

227 Enterprise Pvt. Ltd. is a specialist producer with over a decade of knowledge in VRF system components – not a generic fitting house that added VRF parts to a catalog. Rather than providing standard fittings, the company custom designs its PNS Series kits to rigorous OEM specifications to ensure exact fitment and dependable performance, be it hospitals, hotels and educational institutions or airports, IT parks and shopping malls, where a large-capacity VRF installation simply cannot afford to have a branch that underperforms. All joints are made of high grade, fault free copper and are brazed with 2% silver BCuP rod All joints are pressure tested to 5.2 MPa to assure leak free longevity before shipping. That production discipline is backed by BIS certification, AS 4041 pressure-piping compliance, ISO and CE certification, and India’s ZEE (Zero Defect Zero Effect) quality and sustainability rating – a stack of credentials most branch-piping suppliers can’t match. It is this proven reliability that has made the PNS Series a preferred choice of consultants and contractors undertaking major HVAC projects globally.

Our Testimonials

clients say great things about us

Product Faqs

Why should I utilize OEM compliant PNS Series Y Branch?

The OEM-compatible PNS Series Y Branch offers a perfect fit, uniform refrigerant distribution and easy installation. It mitigates the danger of wrong dimensions, minimizes on-site changes and assists in preserving the specified performance and efficiency of the VRF HVAC system.

What should I know before selecting a PNS Series Y Branch?

When choosing a PNS Series for VRF Y Branch examine OEM model number, refrigerant type, pipe size, system capacity and project drawings (SLD). Proper selection of the correct branch junction enables correct flow of refrigerant, reliable operation and long term system efficiency.

Is the PNS Series good for large commercial HVAC projects?

Yes. PNS series is commonly utilized in office buildings, hospitals, hotels, shopping malls, IT parks, airports, educational institutions and industrial facilities. The design complies with OEM standards and guaranties efficient refrigerant distribution and reliable performance in large-capacity VRF installations.

What is the difference between the 227 Enterprise PNS Series and VRF traditional branch piping?

The 227 Enterprise PNS Series is designed to OEM specs for an exact fit and repeatable quality, not field produced branch pipe. Factory-engineered structure simplifies installation, improves refrigerant distribution, lowers on-site fabrication, and makes the entire VRF system more reliable.

What Certifications does the PNS Series Have?

The PNS series is BIS approved, ISO and CE marked and complies with Australian Standard AS 4041 for pressure plumbing. It also has ZED Certificate (Zero Defect Zero Effect) rating of India, a Government of India MSME scheme that recognizes manufacturing quality and environmentally responsible production — covering material, pressure-performance and quality benchmarks that most international and domestic projects demand.

Related Products

360° View WhatsApp Brochure