Model: HIAC

Applications: HIAC is a versatile access cover solution where both functionality and aesthetics are key. It provides safe access to a wide range of installations, from technical systems such as water and wastewater infrastructure, pump stations and electrical rooms, to commercial buildings and public properties.

The HIAC access cover is suitable for use in public, commercial and industrial environments, and performs equally well indoors and outdoors where high demands are placed on durability and operational reliability.

Material: Aluminium or stainless steel AISI 304/316, depending on size

Cover: Recessed cover designed for infill up to 100 mm

Frame: Extruded aluminium frame or fabricated stainless steel frame

Hinges: Concealed stainless steel hinges

Sealing: Double EPDM gasket for enhanced protection against water and debris

Dimensions: Each solution is custom-made to suit project requirements

Load class:
In accordance with FACTA classification, class A–E

• W1 – Pedestrian traffic (2.5 kN/m²)
• W2 – Medium pedestrian traffic (5 kN/m²) – FACTA A
• W3 – Heavy pedestrian traffic (10 kN/m²)
• W4 – Light vehicle traffic (15 kN wheel load) – FACTA AA
• W5 – Medium vehicle traffic (25 kN wheel load) – FACTA AAA
• W6 – Heavy vehicle traffic (50 kN wheel load) – FACTA B
• W7 – Heavy traffic / trucks (108 kN wheel load) – FACTA D
• W8 – Heavy traffic (docklands heavy) (158 kN wheel load) – FACTA E

Operation: Manual opening with gas struts or removable cover, alternatively electric or hydraulic operation. See options under customisation.

Locking: Various locking options available depending on configuration

Drainage: This access cover is not fully watertight but self-draining. Any water passing the seals is directed away through an integrated drainage channel, supplied as standard with an external ¾” hose connection (connection to drainage system by others).

Operation:

Manual:

• Gas spring-assisted opening
• Hold-open stay (locking in open position)

Electric:

• Electric actuators
• Control panel with 72-hour battery backup
• Removable actuators

Hydraulic:

• Hydraulic actuators
• Manual hand pump
• Option for electrically powered operation
  
  

Locking options:

Manual: T-key lock, lock cover, limit switch, sliding bolt, turn lock, concealed deadlock

Electric: Control panel with battery backup, key switch, push button, customised solutions including keypad entry, remote control and more

Hydraulic: Hand pump and control panel, multiple switch options for electric control, customised solutions

Additional options & features:

Fire rating up to 4 hours from below (BS EN 1634-1:2008 and BS EN 1363-1:1999, UL-EU-01074-CPR)

Acoustic rating up to 45 dB

Anti-slip surface finish

Adaptation for various floor finishes

Custom sizes and large clear openings

Enhanced self-draining (not fully watertight)

Safety grating

Double leaf covers

Heating system for frost protection

Insulation

Example drawing: HIAC – Example drawing

Load classification: In accordance with FACTA, classes A–E

Optional: Fire rating up to 4 hours from below (BS EN 1634-1:2008 and BS EN 1363-1:1999, UL-EU-01074-CPR)

Always read the installation instructions supplied with your order carefully before starting installation, as they may vary depending on configuration and selected options.

Installation must be carried out by qualified personnel and adapted to the specific conditions of the project.

Always follow the specific operation and maintenance instructions supplied with your order. These may vary depending on model, material and selected options.

To ensure optimal performance and long service life, the access cover should be maintained regularly.

What is the difference between a flush access cover and a recessed access cover?

A flush access cover (solid top) features a finished lid, typically in steel or aluminium, that sits level with the surrounding surface and is ready for immediate use.

A recessed access cover is designed to be infilled with materials such as concrete, paving, stone or tiles, allowing it to blend seamlessly into floor or ground surfaces.

The choice depends on requirements such as aesthetics, load class, visibility and surface finish.

Which access cover should I choose?

The right access cover depends on several factors, including load requirements, environment (indoor or outdoor), surface material and whether a visible or recessed solution is preferred.

Recessed access covers are ideal for projects where aesthetics are important, while flush covers are often chosen for simpler, functional installations.

What load class access cover do I need?

The required load class depends on the type of traffic in the area.

Pedestrian areas require lower load ratings, while roads, airports and industrial environments require heavy-duty access covers designed for vehicle and truck loads.

Is the HIAC recessed access cover watertight?

No, the HIAC recessed access cover is not fully watertight. It is designed as a self-draining system where any water that passes the seals is safely channelled away through integrated drainage.

Are recessed access covers suitable for outdoor use?

Yes, recessed access covers are designed for both indoor and outdoor applications. They are commonly used in public spaces, infrastructure, courtyards and landscaped areas where a discreet and integrated finish is required.

What load class can the HIAC access cover achieve?

The HIAC access cover can be engineered to meet a wide range of load classes in accordance with FACTA standards, from pedestrian traffic to heavy-duty vehicle and truck loads.

This makes it suitable for applications such as public spaces, roads, industrial areas and infrastructure projects.

Can HIAC access covers be made to custom sizes?

Yes, all HIAC access covers are custom-made to meet project-specific requirements.

They can be manufactured in bespoke dimensions, configurations and load capacities to suit everything from small service access points to large infrastructure openings.

When should you choose a recessed access cover like HIAC?

A recessed access cover is the preferred solution when both functionality and aesthetics are important.

By infilling the cover with surrounding materials such as stone, paving or concrete, it becomes virtually invisible while still providing safe and easy access.

Where are recessed ground access covers used?

Recessed access covers are widely used in:

• Public spaces and urban environments
• Commercial buildings and courtyards
• Infrastructure and transport areas
• Industrial facilities and service areas
• Electrical chambers, drainage systems and utility networks

They are ideal wherever access is required without compromising the visual appearance of the surrounding surface.

Are access covers suitable for heavy traffic and vehicles?

Yes, heavy-duty access covers can be designed to withstand high loads, including cars, trucks and industrial traffic.

The HIAC access cover can be adapted to meet demanding load requirements in accordance with FACTA classifications.