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Aramid carbon fiber packing rings, with their breakthrough performance combination, have become the preferred solution for sealing challenges in extreme conditions. It is recommended to provide detailed operating condition parameters when using them in critical equipment to facilitate customized design, ensuring optimal sealing effectiveness and service life.
Basic Performance Parameters
Performance Indicator
Parameter Range
Test Standard
Technical Description
Material Composition
Aramid 60-70% + Carbon Fiber 20-30% + PTFE 5-10%
-
Nano-grade dispersion process
Operating Temperature
-196°C ~ +320°C
ASTM D7216
Short-term 350°C (<2h)
Density
1.40-1.50 g/cm³
ISO 1183
8-bobbin braided structure
Coefficient of Friction
0.08-0.12
ASTM D3702
Steel vs. Packing (1 MPa)
PV Limit Value
2.1 MPa·m/s
ISO 13738
Water-lubricated condition
Mechanical Performance Comparison
Test Item
ACF-10
ACF-20
ACF-30
Test Method
Tensile Strength (MPa)
3200
3000
2800
ASTM D4018
Compression (%)
18-22
20-24
22-26
ASTM F36
Wear Loss (mg/100h)
8-12
10-15
12-18
ASTM D3702
Thermal Conductivity (W/m·K)
0.35
0.32
0.30
ASTM E1225
Product Specification Parameters
Model
Cross-section Dimensions (mm)
Tolerance
Applicable Shaft Diameter (mm)
Maximum Linear Speed (m/s)
ACF-10
5×5 ~ 10×10
5×5 ~ 10×10
20-50
15
ACF-20
10×10 ~ 20×20
±0.08
50-120
12
ACF-30
20×20 ~ 30×30
±0.10
120-250
8
Installation Technical Specifications
Parameter Item
Standard Value
Allowable Deviation
Inspection Tool
Shaft Surface Hardness
≥ HRC50
-
Rockwell Hardness Tester
Surface Roughness
Ra 0.4-0.8 µm
Ra 0.4-0.8 µm
Surface Profilometer
Preload Stress
18 MPa
±2 MPa
Pressure Sensor
Cut Angle
45°
±1°
Optical Protractor
Certification Standards
Certification System
Standard Number
Standard Number
Compliance Requirement
API
622 Ed.3
622 Ed.3
622 Ed.3
ISO
15848-1
Life Test
≥ 5000 h
ASME
B16.20
Pressure Test
1.5x Rated Pressure
FDA
21CFR177.2600
Extractables
≤ 0.1 mg/cm²
Selection Reference Table
Operating Condition Feature
Primary Model Choice
Alternative Option
Prohibited Conditions
High-speed Rotation (>10 m/s)
ACF-10
ACF-20
Shaft Diameter > 50 mm
Ultra-low Temperature (-150°C)
ACF-30
ACF-20
Dynamic Sealing
High Pressure (>30 MPa)
ACF-30
-
Linear Speed > 5 m/s
Strong Oxidizing Environment
Special Treated Type
-
Media containing ClO⁻
This product is particularly suitable for extreme operating conditions such as aerospace engines and supercritical fluid pumps. It is recommended to provide specific operating condition parameters for customized design during selection.
