Round EPP Equal Tee — 160mm & 200mm

Description

The Casavent Round EPP Equal Tee splits a single round EPP duct run into a 90-degree branch, manufactured from Expanded Polypropylene (EPP) in two interlocking halves. It allows a supply or extract point to be taken off a main duct run without breaking the run itself.

As an equal tee, all three connection points on a given size share the same diameter, matching the rest of the duct and fitting range. It's available in two diameters — 160mm and 200mm.

2 Sizes

160 / 200mm

Equal Tee

Fitting Type

EPP

Material

2-Half

Construction

λ 0.038-0.039

Thermal Conductivity

-25 to +80°C

Service Temperature

System Component

This is a component of the Casavent EPP radial ducting system — connecting duct sections, bends, and couplers are sold separately.

Branch Off a Main Run

The tee allows a 90-degree branch connection to be taken off a main duct run, useful for splitting airflow to an additional room or outlet.

Equal-Diameter Ports

All three connection points on a given size share the same diameter, keeping the branch consistent with the rest of the duct run.

Insulating by Nature

EPP has a low thermal conductivity, so the tee maintains the same insulating performance as the straight duct sections it connects.

Two-Half Construction

Manufactured in two interlocking halves, easing fitting around obstructions during installation.

Corrosion-Free

As a moulded plastic component, the tee is immune to corrosion, giving long service life in damp loft or void conditions.

Product Code

Diameter (All Ports)

Fitting Type

RDT160-EPP

160mm

Equal tee

RDT200-EPP

200mm

Equal tee

Size Availability

This tee piece is available in 160mm and 200mm only.

Technical Data

Material

Expanded Polypropylene (EPP)

Thermal Conductivity

λ ≈ 0.038–0.039 W/(m·K)

Service Temperature

-25°C to +80°C

Microbial Resistance

Rating 1a, Method A (EN ISO 846:2019)

Air-Tightness

Suitable for ATC2 (D) air-tightness class systems (EN 17192)

What does this tee piece do?

It splits a round EPP duct run into a 90-degree branch, letting a supply or extract point be taken off a main run.

Are all three ports the same size?

Yes, this is an equal tee — all three connection points on a given size share the same diameter.

Is a 125mm tee available?

No, this fitting is currently available in 160mm and 200mm only.

What is it made from?

Expanded Polypropylene (EPP), matching the straight duct sections in the range.

What connects to this tee?

Matching-diameter round EPP duct sections, bends, and PVC couplers from the same Casavent range.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

Triple Glazed

External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

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Required Heating

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