Walraven Bifix 5000 G2 Rubber Lined Clips for Plastic Pipe

This two screw clamp provides a durable and secure fixing solution for a wide range of pipework in building services installations. It incorporates a vibration damping rubber insert that delivers reliable acoustic performance while protecting the pipe surface. The enhanced BUP1000 coating offers exceptional corrosion resistance for both internal and external applications. The design supports efficient installation, combining robust construction with safe closure and a dependable locking mechanism.

BIS UltraProtect 1000 (often abbreviated to BUP 1000) is a high-performance surface-treatment/coating system offered by Walraven for their pipe-clamps, rails, brackets and other fixing/support components.

• It is rated for use in corrosive environments classified as C1 to C4 under the standard ISO 12944‑2 (which covers atmospheric corrosion categories). 
• The surface treatment achieves at least 1000 hours in a neutral salt spray (NSS) test per ISO 9227 with a maximum of 5% red rust (i.e., corrosion) on the test specimens. 
• It is a robust alternative to hot‐dip galvanising (HDG). For comparison, typical HDG offers salt spray resistance in the region of 300–600 hours. 
• The finish is smooth, visually attractive, and with a relatively thin protective layer, which offers advantages when you have threaded holes, rods, or complex geometry (where thick galvanising can cause build‐up or poor fits). 
• Environmentally and production-wise, the treatment uses significantly fewer resources than HDG, including less energy, less water, and fewer emissions.

• ISO 9227:
  • ISO 9227 is the global standard for salt spray testing, providing a controlled method to assess the corrosion resistance of metals and coatings under aggressive saline conditions.
• DIN 4109:
  • DIN 4109 is Germany’s main building acoustics standard, defining how much noise is acceptable from plumbing, heating, and building systems, and how to test and limit it.