What is the function of the HZ9VDSB1 flat duct, 90°, horizontal element?

It is a flat duct bend element that provides a 90° change of direction in a horizontal configuration within a flat duct system. It is designed as a male element to be connected with a female connector sleeve.

How is the air flow performance of this duct bend optimised?

The element has an aerodynamically optimised design intended to minimise pressure loss and maximise the air flow rate as air passes through the 90° bend.

Can the HZ9VDSB1 flat duct bend be cut to size?

Yes. It is described as easy-to-cut, allowing the installer to adjust the element as required before connecting it via the female connector sleeve element.

What safety and flammability standards does this product 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 main dimensions of the duct bend element itself?

The dimensioned drawing shows measurements of 293 mm by 222 mm with a height of 89 mm.

Product Information Sheet

Siemens Flat Channel 90º Horizontal Bend

SKU: HZ9VDSB1

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 HZ9VDSB1 Flat Channel 90º Horizontal Bend

SKU: HZ9VDSB1 · EAN: 4242003890677

The Siemens HZ9VDSB1 is a flat duct 90° bend element in a horizontal configuration, designed for use in flat ducting systems requiring a right-angle change of direction. It features an aerodynamically optimised form to minimise pressure loss and maximise air flow rate. The male element is easy to cut and connect via a female connector sleeve, and it meets specific flammability and needle flame test standards for added safety in ventilation installations.

2 Year Warranty

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This Product Page

Product name	Flat duct, 90°, horizontal
Model code	HZ9VDSB1
Configuration	Horizontal 90° flat duct bend element (male)
Dimensions (L x W x H) – element	293 x 222 x 89 mm (measurements in mm from dimensioned drawing)
Dimensions of packed product (H x W x D)	130 x 300 x 305 mm
Pallet dimensions	205.0 x 80.0 x 120.0
Quantity per packing unit	5
Standard number of units per pallet	100
Weight (net)	0.6 kg
Gross weight	1.0 kg
EAN code	4242003890677
Flammability class	V2 (according to UL94)
Needle Flame Test	Complies with IEC 60695-11-5

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 Horizontal Bend

Siemens HZ9VDSB1 Flat Channel 90º Horizontal Bend

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