Hauff-Technik HAUFHSD100 EW rengastiiviste 1x24-44+4x7-12 b40 A2/EPDM 3030300054,0

For sealing cables and pipes in core drillings or wall sleeves, the Hauff-Technik HAUFHSD100 EW annular space seal provides a reliable barrier against water and gas ingress. It is commonly used in building entries for power, telecommunications, and water supply lines where multiple cables or pipes must pass through a single 100 mm core drilling. The seal features one large entry for cables or pipes with diameters from 24 to 44 mm and four smaller entries for diameters from 7 to 12 mm, all within a 40 mm sealing width.

Key specifications

• Seal type: Annular space seal (Ringraumdichtung)
• Core drill diameter: 100 mm
• Sealing width: 40 mm
• Frame material: Stainless steel A2 (1.4301)
• Sealing material: EPDM rubber
• Number of large entries: 1 (diameter range 24–44 mm)
• Number of small entries: 4 (diameter range 7–12 mm)
• Water tightness: Yes
• Gas tightness: Yes
• Pressure resistance: Up to 2.5 bar
• Temperature range: -30°C to +100°C

Why choose it

The stainless steel A2 frame offers excellent corrosion resistance, making it suitable for long-term installations even in damp environments. The EPDM rubber sealing elements provide good resistance to UV radiation and many acids, alkalis, and solvents, ensuring durability across a wide range of conditions. Mechanical compression installation allows for a secure fit without the need for special tools or adhesives.

Ideal use cases

• Sealing cable and pipe penetrations in building foundations and walls
• Utility connections for power, telecom, and water services
• Industrial facilities requiring pressure-resistant cable entries
• Underground structures where water and gas tightness are critical

Good to know

The seal is designed for use with core drillings of 100 mm diameter. It accommodates a mix of one larger cable or pipe and up to four smaller ones, providing flexibility for various installation layouts. The EPDM material maintains its sealing properties across a broad temperature range, from -30°C to +100°C.