Industrial-Grade Ramie Fiber Gland Packing Seal
Ramie gland packing is a braided sealing material made from ramie plant fibers (Boehmeria nivea), used to prevent leaks in rotating or reciprocating shafts (e.g., valves, pumps). It excels in low-pressure, low-speed applications (up to 10 bar, 120°C) due to its natural flexibility, low friction, and biodegradability. Ideal for water, steam, and weak chemicals, it’s an eco-friendly alternative to asbestos or synthetic packings.
Key features:
Thermal Resistance: Stable from -40°C to 120°C.
Chemical Compatibility: Resists water, oils, and mild acids/alkalis.
Cost-Effective: Affordable for agricultural, municipal, or vintage machinery.
Limitations: Not suitable for high-pressure/high-speed systems or harsh chemicals. Variants like graphite-impregnated or PTFE-coated ramie enhance performance. Requires periodic tightening for optimal sealing