Allegro LP Flexible Pigtail (9891-07)
Allegro 9891-07 LP Flexible Pigtail is designed to connect low-pressure air cylinders in cascade systems, allowing for efficient airflow and uninterrupted operation during cylinder changeouts. This flexible connector features inline check valves that maintain consistent air supply while minimizing backflow. Ideal for industrial settings, it’s compatible with Allegro’s low-pressure airline cascade kits and helps simplify system integration while improving safety and reliability.
Flexible pigtail connector for low-pressure airline cascade systems
Inline check valve enables uninterrupted airflow during cylinder change
Compatible with Allegro’s low-pressure cascade kits
Prevents backflow and ensures safe air distribution
Durable and easy to install into existing air systems
Maintains airflow while replacing depleted air cylinders
Improves efficiency and safety of breathing air systems
Reduces the risk of mismatched or missing fittings
Supports modular expansion of existing air supply setups
Technical Specifications:
Type: LP Flexible Pigtail
Application: Low-pressure airline cascade connections
Check Valve: Inline (low-pressure compatible)
Country of Origin: USA
Product identification
- Brand: Allegro
- Model / MPN: 9891-07





