Low Cast-in Fire Collars by Allproof Industries

Low Cast-in Fire Collars

Allproof Industries

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Description

The Allproof Low Cast-in Passive Fire Collars are designed and tested for a diverse range of plastic plumbing pipes in on-site poured concrete floors for both stack and floor waste penetrations. These low cast-in collars follow a similar installation method to the standard cast-in collar. The innovative design allows for straightforward attachment of the cast-in fire collar base to the formwork, with the pipe penetration serving as the riser to the required height during concrete pouring. It is essential to cap the pipe to prevent concrete ingress during construction, eliminating the need for post-construction core drilling of penetrations and retrofitting fire collars or wraps. This approach facilitates the installation of structural steel around the penetration.

Comprising of intumescent strip(s) enclosed in a recycled PPE plastic casing with a fixing base, the low cast-in fire collars expand against the casing in the event of a fire. Equipped with a steel ring at the base, they ensure rapid activation of the intumescent material, forming a reliable fire-resistant seal that upholds both fire integrity and insulation.

Allproof’s Low Cast-in Collars are designed and made in New Zealand and undergo rigorous testing at accredited fire laboratories.

Key Features

Sturdy construction for casting in
Multiple fixing positions
Made from recycled PP

Ranges

Passive Fire Protection

NZ Made

NZ-Owned Business

Pre-Consumer Recycled Content

Scope of Use

To be cast into solid masonry floors.

Limitations on Use

As per requirements set out in NZBC C/AS2 Clause 4.4 Allproof fire stopping products installation “shall be identical to those of the prototype used in tests to establish their FRR”.

Allproof passive fire systems are required to be used in closed, internal spaces, protected from excessive moisture, solvents, oxidising agents, acids and alkalis. They should not be exposed to UV light in service.

Separation or protection must be provided to Allproof Passive Fire Protection Products from heat sources such as fireplaces, heating appliances and chimneys. Part 7 of NZBC Acceptable Solution C/AS1 and C/AS2, and NZBC Verification Method C/VM1 provide methods for separation and protection of combustible materials from heat sources.

Statement of Building Code Compliance

NZBC C/AS2 C3.1, C3.2 and C3.3: Allproof PFP products are designed to limit the spread of fire between property from its origin by sealing service penetrations in the separating elements of fire cells. The Technical Literature gives the fire resistance ratings (FRRs) for the Allproof Passive Fire Protection Products that can be achieved to provide the FRR’s as determined by NZBC Acceptable

Solutions C/AS1, C/AS2 and NZBC Verification Method C/VM2.

NZBC C/AS2 4.4 Fire Stopping: Allproof PFP products have been tested in accordance with Appendix C C5.1 for fire stopping. Detailed information on the tested prototypes is available in Allproof’s PFP literature to assist with the correct product selection and install details. When installed as per documentation Allproof PFP products will provide an FRR consistent with the published results and therefore, if selected correctly, no less than the separating element.

NZBC B2: Allproof Passive Fire Protection Products meet code compliance with the NZBC Clause B2.3.1 (b), 15 years.

NZBC F2.3.1 Allproof Passive Fire Protection Products does not present a health hazard to people.

In-Service History

A wide range of multi story building applications.

Other Performance Attributes

At the core of the Allproof passive fire protection product range is the advanced intumescent technology. This enables Allproof to offer products with performance and design advantages for engineers and installers of passive fire protection products. Allproof’s intumescent material expands when exposed to heat and as its volume increases with significant expansion pressure, it produces a stable char. The intumescent char formed is a poor conductor of heat, retarding heat transfer and retaining the integrity and insulation of service penetrations through otherwise fire-resistance rated walls or floors.