Braided shaft seals for pumps, valves and mixers
Braided yarn packings used in stuffing boxes to seal rotating or reciprocating shafts. We supply six material families covering everything from clean cold water (cotton) to high-temperature steam (graphite) and abrasive pulp slurries (aramid). Square cross-sections from 3 mm to 25 mm, supplied as continuous coils or pre-formed rings.
Click any material below to see specifications and typical applications.
Pure PTFE braided gland packing for general chemical service. Inert to virtually all chemicals across the full pH range, low coeff...
PTFE braid impregnated with graphite particles. Combines PTFE chemical resistance with graphite's heat dissipation and self-lubric...
Expanded graphite yarn packing reinforced with Inconel or stainless steel wire. The default choice for high-temperature steam, hot...
Para-aramid (Kevlar) yarn impregnated with PTFE. Extremely high tensile strength makes this the choice for highly abrasive media —...
Carbon fiber yarn impregnated with PTFE and graphite. High thermal conductivity dissipates heat from the stuffing box — runs coole...
Traditional natural-fibre packing — cotton, ramie or hemp yarn impregnated with grease, tallow or PTFE dispersion. Economical choi...
Up to 260 °C → PTFE or PTFE/graphite. 280–500 °C → carbon fiber. Above 400 °C steam → pure graphite. Below 120 °C cold service → cotton/yarn.
Aggressive chemicals across full pH → PTFE. Strong oxidising acids → PTFE only (graphite reacts). Neutral water/oil → most materials work. Alkaline pulp → aramid or PTFE/graphite.
Clean fluid → PTFE or graphite. Abrasive slurry / pulp → aramid (Kevlar). Hot oil → PTFE/graphite or carbon fiber. Steam → pure graphite.
Rotating pump shafts vs. valve stems vs. mixers each have different load profiles. Tell us the equipment type and shaft size — we will recommend cross section and material.
Tell us the fluid, temperature, pressure, shaft size and equipment type — we will recommend the right material and cross section.