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Commander Rectangular Duct Fire Stop Collar

Quick Overview

The Commander QPC Fire Stop Collars consist of a continuous pressed stainless steel flexible shell containing graphite based intumescent material which reacts under the influence of heat to exert pressure on the pipe as it softens to form a carbonaceous char which provides an effective insulation plug thus preventing smoke and fire passing through to the adjoining compartment. The QPC Fire Stop Collar has built in fixing brackets which can be used to secure it to the structure.

Overall external dimensions (excluding fixing tabs):

  • 110x54mm collar - 130x75mm
  • 205x60mm collar - 235x80mm

Product Code: DUCT COLLAR

Availability: In stock

Excl. VAT: £16.15 Incl. VAT: £19.38

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Excl. VAT: £16.15 Incl. VAT: £19.38


Building Regulations impose fire stopping requirements on all services passing through fire compartment walls and floors. Commander Fire Stop Seals allow plastic pipes to meet the requirements of the Building Regulations, but avoid the necessity of constructing fire resistant ducts. There are no published standards for this component but Commander Fire Stop Collars have been tested according to BS 476: Part 20: 1987 where sizes of up to 200mm have met insulation and integrity criteria for this standard for up to four hours. The product is also available to suit circular plastic pipes.

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