Key Performance Parameters

Performance Indicator	Basic Type	Oil-Impregnated Type	Graphite Type
Operating Temp. (°C)	-20 ~ 120	-10 ~ 150	0 ~ 180
Operating Pressure (MPa)	≤ 1.6	≤ 2.0	≤ 2.5
Linear Speed (m/s)	≤ 7	≤ 5	≤ 4
Friction Coefficient	0.10-0.13	0.10-0.13	0.05-0.07
Compression Rebound Rate (%)	≥ 70	≥ 65	≥ 60

Typical Application Scenarios

   Food Processing Equipment: Filling machine, mixer tank shaft seals.

   Drinking Water Systems: Water pump, valve seals.

   Traditional Industry: Low-pressure steam equipment, room-temperature chemical pumps.

   Agricultural Machinery: Irrigation systems, harvesting equipment.

Installation Requirements:

   Shaft-bore fit tolerance: H9/f8.

   Surface roughness: Ra 1.6-3.2 µm.

   Use 30° angled cuts, installed in a staggered pattern.

Operating Parameters:

   Initial run-in period: 4-8 hours (stepwise load increase).

   Normal operating leakage: 80-120 drops/minute.

   Permissible maximum radial wear: 1.5 mm.

Maintenance Cycle:

   Check tightening force every 2 months.

   Replenish lubricant every 6 months.

   Annual replacement: 1-2 times (depending on operating conditions).

Technology Development Status

Modern flax packing achieves performance improvements through technological innovation:

   Nano-Impregnation Technology: Graphene-modified lubricants.

   Hybrid Braiding Process:Composite with aramid fibers for reinforcement.

   Smart Coating: Temperature-sensitive self-lubricating coating.

With its "green, environmentally friendly, economical, and reliable" characteristics, flax packing holds an irreplaceable advantage in fields with strict environmental requirements such as food, pharmaceuticals, and drinking water. It is an ideal substitute for traditional oil-based packing. Under proper installation and appropriate maintenance, its service life can reach 8,000 to 10,000 operating hours.

Performance Indicator	Basic Type	Oil-Impregnated Type	Graphite Type	Test Standard
Main Composition	Pure Flax Fiber	Flax + Food-Grade White Oil	| Flax + Graphite	-
Density (g/cm³)	1.10-1.20	1.15-1.25	1.25-1.35	ISO 1183
Fiber Count (Nm)	12-14	10-12	8-10	GB/T 5881
Operating Temp. (°C)	-20 ~ 120	-10 ~ 150	0 ~ 180	ASTM D865
Operating Pressure (MPa)	≤ 1.6	≤ 2.0	≤ 2.5	ISO 6003
Linear Speed (m/s)	≤ 7	≤ 7	≤ 4	DIN 24960

Mechanical Properties

Parameter	Basic Type	Oil-Impregnated Type	Graphite Type
Tensile Strength (N/cm)	400-500	450-550	500-600
Compression Rate (%)	18-20	20-22	22-25
Rebound Rate (%)	≥ 70	≥ 65	≥ 60
Friction Coefficient	0.10-0.13	0.07-0.09	0.05-0.07

Specification Parameters

Size (mm)	Cross-Section  Tolerance	Applicable Shaft Diameter (mm)	Braid Density (strands/cm)
3×3	±0.15	10-25	14-16
5×5	±0.20	25-50	12-14
6×6	±0.25	50-80	10-12
8×8	±0.30	80-120	8-10

Medium Resistance Performance (Service Life in Hours)

Medium	Basic Type	Oil-Impregnated Type	Graphite Type
Clean Water	5,000-6,000	6,000-8,000	8,000-10,000
3% Salt Water	3,000-4,000	4,000-5,000	5,000-6,000
Edible Oil	4,000-5,000	6,000-7,000	7,000-9,000
Low-Pressure Steam	2,000-3,000	3,000-4,000	5,000-6,000

Installation Technical Parameters

Item	Standard Requirement	Specialized Tool
Shaft Surface Finish	Ra 1.6-3.2 µm	Surface Roughness Tester
Cut Angle	30° ± 1°	Angle Cutter
Per-Ring Tightening Force	25-35 N/cm	Digital Torque Wrench
Run-in Time	4-6h stepwise speed increase	Speed Monitoring System

Environmental Certifications

Certification Standard	Test Item	Limit Requirement
FDA	Food Contact Safety	21 CFR 177.2600
EU 10/2011	Food-Grade Migration	All Items Compliant
ISO 17556	Biodegradation Rate	≥ 90% (90 days)
RoHS	Heavy Metal Content	Cd < 5 ppm

Application Comparison

Application Scenario	Recommended Type	Key Advantage	Replacement Interval
Food Processing Equipment	Oil-Impregnated	Food-Grade Safety	8-10 months
Drinking Water Systems	Basic Type	Zero Pollution	10-12 months
Low-Pressure Steam	Graphite Type	High-Temperature Resistance	4-6 months
Pharmaceutical Equipment	Oil-Impregnated	FDA Compliant	6-9 months

Maintenance Parameters

Maintenance Item	Standard Value	Limit Value
Permissible Leakage	80-120 drops/min	> 200 drops/min
Axial Wear	≤ 1.2 mm	≥ 2.0 mm
Lubricant Replenishment Cycle	6 months	-
Tightening Check Cycle	750 operating hours	-

Technology Improvement Indicators

Innovative Technology	Performance Improvement	Testing Method
Nano-Impregnation	Life Extended by 40%	HPLC Analysis
Hybrid Braiding Reinforcement	Strength Increased by 50%	Strength Increased by 50%
Smart Coating	Friction Reduced by 35%	Friction and Wear Tester