Vapor Shield Secondary Metallic Wiper Seal
For internal floating roof tanks
Overview
The VAPOR SHIELD Secondary Metallic Wiper Seal is a durable secondary sealing solution for internal floating roof tanks, designed to provide reliable vapour control across a wide range of operating conditions.
The system combines high-strength stainless steel support plates with a flexible elastomeric wiper tip to maintain a tight seal against the tank shell. Its overlapping plate design provides the flexibility required to accommodate shell irregularities while maintaining effective contact throughout the working range.
Designed for use with steel, aluminium, and composite internal floating roofs, VAPOR SHIELD supports long-term sealing performance in applications where chemical compatibility, durability, and emissions control are critical.
Design & Construction
The VAPOR SHIELD design incorporates high-strength, semi-hardened stainless steel support plates arranged to provide flexibility, durability, and reliable shell conformity.
Key design features include:
- Overlapping stainless steel support plates for shell deformation conformity
- Flexible elastomeric wiper tip for consistent tank shell contact
- High-durability fabric wrap for abrasion resistance
- All-bolted construction for safe installation
- No hot work required
- Suitable for in-service installation where appropriate
- Compatible with steel, aluminium, and composite internal floating roofs
Key Benefits
Reliable secondary vapour control
Maintains a tight secondary seal to help reduce vapour emissions from internal floating roof tanks.
Maintains shell contact
Overlapping stainless steel support plates allow flexibility across shell irregularities while maintaining consistent sealing contact.
Durable wiper performance
A fabric-wrapped elastomeric wiper tip provides abrasion resistance and supports long service life.
Chemical compatibility
Designed for compatibility with commonly stored products, including demanding petrochemical and chemical services.
In-service installation capability
Can be installed in-service where site conditions and procedures allow, helping reduce operational disruption.
Safe, bolted installation
All-bolted connections support simple, safe installation without gasketed connections or hot work.
Applications
VAPOR SHIELD Secondary Metallic Wiper Seals are suitable for internal floating roof tank applications including:
- Petrochemical storage
- Fuel and hydrocarbon storage
- Chemical storage applications
- Internal floating roof tanks using steel, aluminium, or composite roof systems
- Applications requiring secondary vapour control and chemical compatibility