Caps, Screw Top, with Orange Red Rubber / PTFE Septa, bonded in "knurled", polypropylene, Red Caps. For use with 9-425mm thread, 12x32mm autosampler vials. MICROSOLV Brand. 1000/CS.
Additional Info:
Alternative septa materials are often selected to balance cost, penetration softness, and instrument protection in routine analytical workflows.
The 9502S‑40C‑R‑M screw caps feature bonded orange‑red rubber/PTFE septa that provide a more economical option compared to white silicone, while offering a softer surface than natural red rubber. This reduces stress on autosampler needles and injection components, supporting longer instrument life and consistent performance.
The bonded septa design prevents dislodging during transport and repeated use. The red polypropylene cap includes a knurled exterior for secure handling and consistent sealing with standard 9‑425, 12 × 32 mm autosampler vials.
Key Features & Benefits
Orange‑red rubber septa ✅ Economical alternative to white silicone
Softer penetration surface ✅ Reduces needle and system wear
PTFE barrier ✅ Chemical resistance and sample protection
Bonded septa ✅ Prevents dislodging during use
Fits 12 × 32 mm autosampler vials ✅ Standard 9‑425 compatibility
Typical Applications
HPLC and UHPLC analysis
GC and LC‑MS workflows
High‑throughput analytical laboratories
Cost-sensitive testing environments
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
Suitable for multiple injections
Case quantity format (1000/CS)
Designed for economical and instrument-friendly performance