What is the connection size of this adapter duct?

It is a flat to round converter with a ø 150 mm round connection and a round–flat adapter design. The round connection diameter A is ø 152.5.

How is the air flow performance of this adapter optimised?

It has an aerodynamically optimised design intended to minimise pressure loss and maximise air flow rate through the ducting.

What flammability standards does this adapter duct meet?

The element complies with the Needle Flame Test according to IEC 60695-11-5 and meets the V2 flammability class according to UL94.

What are the packed dimensions and weight?

The packed product dimensions are 190×235×220 mm with a weight of 0.3 kg and a gross weight of 0.5 kg.

Product Information Sheet

Siemens Straight Adaptor / Converter flat to round (Ø 150mm).

SKU: HZ9VDSI0

Woodalls 1053–1055 Finchley Road, London, NW11 7ES
+44 (0)208 455 3925 · [email protected] · www.woodalls.co.uk

Mon–Fri: 9:00am – 5:00pm | Sat–Sun: Closed

Printed 19 July 2026

Siemens HZ9VDSI0 Straight Adaptor / Converter flat to round (Ø 150mm).

SKU: HZ9VDSI0 · EAN: 4242003890899

The HZ9VDSI0 adapter duct is a flat to round converter with a ø 150 mm connection, designed as a round–flat male adapter accessory. Its aerodynamically optimised design helps minimise pressure loss and maximise air flow rate, while the element is easy to cut and easy to connect via the female connector sleeve element. It complies with the Needle Flame Test (IEC 60695-11-5) and V2 flammability class (UL94).

2 Year Warranty

Enquire About This Product

All products are sold by enquiry. Add to your list and we'll be in touch.

Share This Product

This Product Page

Product name	Adapter duct, ø 150 mm, round–flat
Model designation	HZ9VDSI0
Converter type	Flat to round converter ø 150 mm
Adapter style	Round–flat adapter accessory (male)
Dimensions of packed product (H×W×D)	190×235×220 mm
Pallet dimensions	205.0 × 80.0 × 120.0
Quantity per packing unit	6
Standard number of units per pallet	120
Weight	0.3 kg
Gross weight	0.5 kg
EAN code	4242003890899
Round connection diameter A	ø 152.5
Overall length	222 mm
Overall height	157 mm
Overall width	206 mm
Flat outlet height	89 mm

Delivery & Returns

Delivery

Free delivery to London addresses to ground floor only (service lift access accepted). Some appliances carry standard manufacturer delivery charges — confirmed at time of quotation. UK mainland delivery available for an additional charge. Lead times vary by make, model, and manufacturer availability.

Installation

We do not install appliances. We can recommend vetted fitters operating within London — payments are made directly with the fitter. Woodalls accepts no responsibility for installation work carried out by any third party.

Returns

14-day return window from the day after delivery. Items must be unused, uninstalled, and in original packaging. View our full returns policy →

Authorised Dealer

All products are supplied as an authorised Siemens dealer, with full manufacturer warranty. Established 1967.

Enquire About This Product

Our specialists are on hand to answer any questions about the Siemens Straight Adaptor / Converter flat to round (Ø 150mm).. Get in touch and we'll respond within one working day.

+44 (0)208 455 3925 [email protected]

Full Name *

Email *

Phone *

Message *

I agree to Woodalls using my details to respond to my enquiry. I have read the Privacy Policy.

Your Enquiry List

Siemens Straight Adaptor / Converter flat to round (Ø 150mm).

Siemens HZ9VDSI0 Straight Adaptor / Converter flat to round (Ø 150mm).

Delivery & Returns

Related Products

Siemens HZ9VDSM2 1 x 1000mm Long Flat Channel Ducting

Siemens HZ9VDSM1 1 x 500mm Long Flat Channel Ducting

Siemens HZ9VDSI1 90° Adaptor / Converter flat to round (Ø 150mm)

Siemens LZ11AKV16 Anti-Pollen Chimless Recirculation Kit

Siemens HZ9VDSS1 Connection piece for use between straight channel ducting components and bends

Siemens HZ9VDSB1 Flat Channel 90º Horizontal Bend

Siemens HZ9VDSB3 Flat Channel 90º Vertical Bend (Medium Radius),

Siemens HZ9VDSB4 Flat Channel 90º Vertical Bend (Short Radius),

Enquire About This Product