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With its comprehensive performance advantages, aramid fiber packing rings have become the preferred sealing solution for harsh operating conditions involving high temperature, high pressure, and strong corrosion. Selection requires comprehensive consideration of medium characteristics, temperature and pressure parameters, and equipment requirements. Operational simulation testing is recommended for critical applications to ensure optimal sealing effectiveness.
Basic Performance Parameters
Performance Indicator
Parameter Range
Test Standard
Technical Description
Material Composition
Aramid Fiber + Lubricant + Reinforcing Material
-
Customizable formula
Continuous Operating Temperature
-100°C ~ +300°C
ASTM D7216
Short-term tolerance 350°C (≤2h)
Peak Temperature
350°C (Instantaneous)
ISO 10890
Duration ≤30 minutes
Tensile Strength
2500-3000 MPa
ASTM D5035
Fiber axial strength
Compression Rate
15-25%
ASTM F36
Measured at 20 MPa pressure
Rebound Rate
≥25%
ASTM F1314
Recovery after load release
Friction Coefficient
0.15-0.25
ASTM D1894
Steel vs. packing, 1 MPa load
pH Tolerance Range
1-13
ASTM D543
Excluding concentrated nitric acid, fuming sulfuric acid
Product Specification Comparison
Model
Reinforcing Material
Cross-Section Shape
Size Range (mm)
Color Code
AF-100
None
Square
3×3 ~ 50×50
Golden Yellow
AF-200G
Graphite
Round
Φ5 ~ Φ60
Black
AF-300S
Stainless Steel Wire
Square
6×6 ~ 40×40
Silver Gray
AF-400C
Carbon Fiber
Braided Tape
Width 10-80, Thickness 2-6
Dark Gray
Mechanical Properties Comparison
Test Item
Pure Aramid Type
Graphite Impregnated
Metal Wire Reinforced
Test Method
Compressive Strength (MPa)
45-60
55-75
80-100
ASTM D695
Wear Rate (mg/100h)
30-50
15-30
10-20
ASTM D3702
PV Limit (MPa·m/s)
0.8
1.2
1.8
ASTM D3702
Thermal Conductivity (W/m·K)
0.12
0.25
0.35
ASTM E1225
