Gent Mounting Bracket
| Part no. | S4-34760-99 |
|---|---|
| Brand | Gent |
| Range | S4 Duct & Accessories |
| Sub-range | Housing & Brackets |
Image for illustration; item supplied may differ
At a glance
- For the S4-34760 housingSupports the external duct housing with its Venturi tube passing into the duct.
- Circular duct mountingRequired when fitting the housing to a circular air duct.
- Insulated duct mountingProvides the required mounting arrangement for insulated ducts, including rectangular ductwork.
- Bends to the duct profileForming edges allow the bracket to be shaped for the duct.
- Pre-punched fixing holesMounting holes are provided at the bracket’s fixing points.
- Rubber grommets suppliedThe grommets seal the duct openings around the tube passage.
Description
The Gent S4-34760-99 mounting bracket supports the S4-34760 duct housing on circular or insulated air ducts. It bends to match the duct shape, with forming edges and pre-punched holes for the fixing points. Openings in the bracket provide a path for the Venturi tube between the housing and duct. Rubber grommets supplied with the kit seal the duct openings. The bracket fits outside the air duct and is required for these mounting arrangements, including insulated rectangular ductwork. Allow for the space it creates between the housing and duct when cutting the sampling tube. Align the housing arrow with the air flow.
The S4-34760-99 is the mounting bracket for the S4-34760 duct housing on circular or insulated ducts. The housing sits above the bracket, with its Venturi tube passing through the bracket and into the duct. This arrangement includes insulated rectangular ductwork.
Read the full technical description
The S4-34760-99 is the mounting bracket for the S4-34760 duct housing on circular or insulated ducts. The housing sits above the bracket, with its Venturi tube passing through the bracket and into the duct. This arrangement includes insulated rectangular ductwork.
Bend the bracket at its forming edges to match the duct profile. Pre-punched mounting holes provide the fixing points, and openings through the bracket accommodate the Venturi tube. Rubber grommets supplied with the kit seal the duct openings.
Allow for the spacing between the housing and duct when setting the sampling tube's length. Align the housing arrow with the airflow and position the tube centrally across the duct. Long tubes pass through the opposite duct wall for support, with an end cap fitted beyond that wall.
The S4-34760 housing uses different tube lengths for different duct diameters. The 1.5 m S4-34760-15 serves diameters from 600 to 1400 mm, while the 2.8 m S4-34760-28 serves 1400 to 2700 mm. The bracket provides the housing mounting arrangement for circular or insulated installations using these tubes.
Specifications
| Product type | Duct housing mounting bracket |
|---|---|
| Compatible housing | S4-34760 |
| Circular duct use | Required for housing installation |
| Insulated duct use | Required; includes insulated rectangular ducts |
| Mounting position | Outside the duct, beneath the housing |
| Shape adjustment | Bend at forming edges to match duct profile |
| Fixing provision | Pre-punched mounting holes |
| Tube passage | Openings through bracket for Venturi tube |
| Duct opening seals | Supplied rubber grommets |
| Tube length allowance | Include bracket spacing between housing and duct |
Specifications per manufacturer documentation, subject to change. E&OE.
Documents
| Document | Type | Size | Download |
|---|---|---|---|
| Datasheet (S4-34760-15, S4-34760-28, S4-34760-99) | Datasheet | 152 KB | Download PDF |
| Installation manual (S4-34760-15, S4-34760-28, S4-34760-99) | Installation | 1.3 MB | Download PDF |
Optional accessories
- S4-34760Duct Housing (Inc S Quad BASE AND 0.6M TUBE)Part of the S4-34760 Duct Smoke Sensor / Venturi-Air Duct Kit£541.08ex VAT£649.30 inc VATIn stock
- S4-34760-151.5m Venturi Tube1.5m Venturi Tube S4-34760-15 (duct diameter 600 mm to 1400 mm, tube length 1500 mm)£130.53ex VAT£156.64 inc VATIn stock
- S4-34760-282.8m Venturi Tube2.8m Venturi Tube S4-34760-28 (duct diameter 1400 mm to 2700 mm, tube length 2800 mm)£150.08ex VAT£180.10 inc VATIn stock
FAQs
When is the S4-34760-99 bracket required?
The bracket is required when the S4-34760 housing is installed on circular or insulated air ducts. It supports the housing outside the duct and provides a passage for the Venturi tube into the air stream. Bend the bracket to match the duct shape and use its pre-punched mounting holes for fixing. The rubber grommets seal the duct openings. Include the bracket's spacing between housing and duct when setting the length of the sampling tube.
Does the S4-34760-99 fit insulated rectangular ducts?
Yes. The bracket supports the S4-34760 housing on insulated rectangular ductwork as well as on circular ducts. Its forming edges allow it to be bent to the duct profile, with the housing supported above the tube entry. Rubber grommets seal the duct openings where the tube passes through. The distance introduced by the bracket must be included when cutting the tube to length, and the housing arrow must remain aligned with the direction of air flow.
How is the S4-34760-99 shaped and fixed?
Bend the bracket at its forming edges to suit the shape of the duct. Its pre-punched holes provide the fixing points, while the openings through the bracket let the Venturi tube pass from the S4-34760 housing into the duct. The housing sits outside the duct on the bracket. Seal the duct openings with the supplied rubber grommets and allow for the resulting housing-to-duct spacing when setting the tube length. The housing arrow follows the airflow.
What do the grommets supplied with the S4-34760-99 do?
The rubber grommets seal the duct openings around the Venturi tube passage. They are used with the bracket's mounting arrangement, where the S4-34760 housing sits outside the circular or insulated duct and the tube enters through it. The bracket is bent to match the duct profile and secured through its pre-punched fixing holes. Set the tube length to include the spacing created by the bracket, with the housing arrow aligned to the air flow through the duct.
How does the S4-34760-99 affect the tube length?
The bracket spaces the S4-34760 housing away from the duct, so that distance must be allowed for when cutting the Venturi tube. The 1.5 m S4-34760-15 suits duct diameters from 600 to 1400 mm; the 2.8 m S4-34760-28 suits 1400 to 2700 mm. Both longer tubes need support at the opposite duct wall and an end cap beyond it. Position the housing with its arrow following the airflow and the tube centred across the duct.