Access door RD 54 - V4A

Highly corrosion-resistant AISI 316 access door for demanding air duct systems

The REVISION RD 54 – AISI 316 is a tried-and-tested access door made from AISI 316 stainless steel for rectangular, uninsulated air ducts. This access door has been specially developed for long-term use in professional air duct installation. Thanks to the duct wall clamping mechanism, whereby the duct wall is clamped between the inner and outer covers, and the integrated PE seal, the access door meets the airtightness requirements of ATC2 in accordance with DIN EN 16798-3. This also ensures reliable access for inspection, maintenance and cleaning work. The version made from AISI 316 stainless steel (1.4404 / ASTM 316L) is particularly suitable for applications with increased requirements for corrosion resistance and material durability.

In day-to-day operations, operators, service companies and duct installers are frequently faced with the challenge of having to inspect ventilation systems on a regular basis. In doing so, the airtightness of the air duct system must not be permanently compromised. The REVISION RD 54 – AISI 316 solves this problem thanks to its robust construction from AISI 316 stainless steel. It also features corrosion-resistant and ergonomic POM twist handles with a maximum clamping force of 2,000 to 3,000 Nm and a durable PE seal. This ensures that the inspection opening remains reliably usable even after many maintenance cycles.

Technical Highlights

• Access door made of AISI 316 stainless steel (1.4404 / ASTM 316L)
• For rectangular, non-insulated air ducts
• Inner and outer covers made of AISI 316 stainless steel
• Cut-out dimensions (opening): 500 x 400 mm (RD 54)
• Radius: 200 mm
• Installation height: approx. 67 mm
• Duct wall thickness: maximum 5 mm
• Airtightness class: ATC2 in accordance with DIN EN 16798-3 & D in accordance with DIN EN 13779 TÜV NORD
• Approved positive and negative pressure: up to ≈ 5,000 Pa
• Temperature range: -70 °C to +70 °C
• Seal: polyethylene foam
• Seal colour: white
• Rotary handle material: polyoxymethylene copolymer
• Rotary handle: M12

Key features

• Quick access to duct sections for inspection and cleaning
• Reliable sealing thanks to closed-cell, cross-linked polyethylene foam
• Corrosion-resistant and ergonomic rotary handles ensure reliable opening even after prolonged use
• Maximum corrosion resistance for demanding applications
• Robust design for daily use on construction sites and in plant operations
• Reduction in leaks and energy losses
• Clean, professional access solution for building services projects

Additional features at a glance

• Cost-effective and durable solution for ventilation projects
• Quick access to relevant maintenance areas
• Supports regular inspection and hygiene checks
• Easy integration into rectangular, non-insulated air ducts
• Standardised dimensions for common applications
• Suitable for environments with increased requirements for material durability and corrosion protection

Installation

• Easy installation in rectangular, non-insulated air ducts
• The duct wall is securely clamped between the inner and outer covers
• No protruding screws in the grip area
• Installation height RD 54 approx. 67 mm
• Ideal for new builds, extensions and retrofitting of existing air ducts
• When installing Stainless steel versions, screws and nuts should be lubricated with a suitable assembly paste and then tightened carefully.

Why is this access door suitable for you?

If you are looking for a robust, airtight and easy-to-install access door for rectangular, uninsulated air ducts, the REVISION RD 54 – AISI 316 offers the right solution. This high-quality access door combines a particularly corrosion-resistant AISI 316 stainless steel construction with a reliable PE access seal. This creates the ideal conditions for maintenance, inspection and the long-term preservation of value in ventilation systems. For specialist air duct installation companies, this AISI 316 stainless steel access panel is the ideal choice for demanding environments and applications with heightened requirements for material durability.

Application scenarios

• Ventilation and air conditioning systems in commercial premises
• Office and administrative buildings
• Industrial and production halls
• Public facilities
• Schools, hospitals and municipal buildings
• Maintenance access points in rectangular air duct systems
• Applications with increased requirements for corrosion resistance

Note on the scope of delivery

• Inner cover made of AISI 316 stainless steel
• Outer cover made of AISI 316 stainless steel
• PE seal
• Lock bolts made of AISI 316 stainless steel
• Conical springs made of AISI 304 stainless steel
• Stop washers made of AISI 316 stainless steel
• Ergonomic POM rotary handles

Optionally available: Safety cable including M6 nut for additional safety.

PE seal for reliable sealing in air duct construction

The integrated PE seal consists of a closed-cell, cross-linked polyethylene foam and ensures reliable sealing between the Access door and the duct wall. The seal is available in a white finish and features a self-adhesive backing, facilitating simple and clean installation. Furthermore, the material is REACH-compliant and free from substances of very high concern in accordance with current REACH requirements.

The PE seal is designed for a temperature range of -40 °C to +70 °C and can withstand temperatures of up to +80 °C for short periods. This makes it suitable for numerous applications in ventilation and air-conditioning technology.

In terms of resistance to liquids, the PE seal offers limited protection against splashing water. For applications with higher requirements for liquid tightness, the specific operating conditions should be checked and, where necessary, alternative seal variants considered.

All information is provided without guarantee. Technical data, illustrations and prices are subject to change and are not binding. Errors excepted.

All information is provided without guarantee. Technical data, illustrations and prices are subject to change and are not binding. Errors excepted.