The Verplas VKC362 is a 150mm equal-port round T-piece for the Verplas System 150 rigid duct range. It enables a single 150mm duct run to branch into two directions — or two branch runs to combine into one — making it the key fitting for multi-room extract or supply ventilation layouts. All three ports are 150mm, and the fitting is constructed from white uPVC for lightweight, tool-free installation.
Airflow Balancing: When using the T-piece to split a duct run, the total airflow divides between both branch legs. Ensure your system design accounts for the required flow at each terminal. Use adjustable valves or balancing dampers to trim flows on site.
Key Features
Equal Three-Port Branch
Provides a 1-into-2 or 2-into-1 duct split in a single uPVC fitting — suitable for branching a main extract spine to two room terminals.
Push-Fit Assembly
All three 150mm spigots accept push-fit connections from duct lengths, connectors, or other fittings — no tools or sealant required.
White uPVC
Manufactured from white uPVC consistent with the VKC673 duct pipe and all other System 150 components.
Compact Branch Geometry
The T-piece body is compact, making it easy to route in ceiling voids and loft spaces where branching occurs close to a fan unit or junction box.
MVHR & dMEV Compatible
Suitable for use in decentralised MEV, MVHR branch runs, and passive stack systems serving multiple room extracts from a single branch point.
System 150 Compatible
Works with all VKC-series 150mm fittings — pipes, connectors, bends, telescopic pipes, and terminal valves.
Specifications
| Verplas SKU |
VKC362 |
| Diameter |
150 mm (all ports) |
| Configuration |
Equal T-piece — 3 × 150mm ports |
| Material |
White uPVC |
| System |
Verplas System 150 — 150mm Round Ducting |
Frequently Asked Questions
Can the T-piece be used bidirectionally?
Yes — the VKC362 is fully symmetrical and can function as a 1-into-2 splitter or 2-into-1 collector depending on the system airflow direction.
What happens to the airflow at the T-piece split?
Airflow splits between the two branches according to the relative resistance of each leg. Longer or more complex branches carry less flow. Use balancing valves at each terminal to adjust to design flow rates.
Does the T-piece add significant pressure drop?
A T-piece junction introduces more resistance than a straight run. Factor the equivalent duct length of the T-piece into your system design calculation — typically specified in the fan manufacturer's design guide.
Is a 150mm T-piece suitable for MVHR branch runs?
Yes, where the system design calls for 150mm branch connections. Verify with your MVHR manufacturer that 150mm branch ducts are appropriate for the unit's airflow capacity and room layout.
