What is the Siemens HZ9VDSB4 flat duct, 90°, vertical S used for?

It is a 90° flat duct bend element in vertical configuration with a very small radius, designed for ductings within the furniture from a 60 cm worktop depth.

Is the flat duct, 90°, vertical S easy to install?

The element is easy to cut and easy to connect via the female connector sleeve element, supporting straightforward installation and adjustment.

What safety and flammability standards does it meet?

It 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 product dimensions and weight?

The dimensions of the packed product are 115x230x220 mm, with a weight of 0.3 kg and a gross weight of 0.5 kg.

Product Information Sheet

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

SKU: HZ9VDSB4

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

SKU: HZ9VDSB4 · EAN: 4242003900253

The Siemens HZ9VDSB4 flat duct, 90°, vertical S is a compact bend element designed for ducting within furniture from a 60 cm worktop depth. It provides a vertical 90° bow with a very small radius, helping to optimise space in kitchen installations. With an aerodynamically optimised design to minimise pressure loss and maximise air flow rate, it is easy to cut and connect using the female connector sleeve element and meets recognised flammability and needle flame test standards.

2 Year Warranty

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This Product Page

Product name	Flat duct, 90°, vertical S
Model reference	HZ9VDSB4
Configuration	90° flat duct bend element (male) in vertical configuration with small radius
Application	Ductings within the furniture (from 60 cm worktop depth)
Dimensions of packed product (H×W×D)	115x230x220 mm
Pallet dimensions	210.0 x 80.0 x 120.0
Standard number of units per pallet	180
Weight	0.3 kg
Gross weight	0.5 kg
EAN code	4242003900253
Needle Flame Test compliance	IEC 60695-11-5
Flammability class	V2 according to UL94

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.

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

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

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