Polypac Tubes — Custom PTFE & Rubber Sealing Solutions

Polypac Tubes deliver custom PTFE-filled and rubber sealing solutions for hydraulic and oil systems. Advanced factory, wide material range, strict testing, and tailored designs ensure durable, leak-free performance.
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Product Information

Polypac Tubes — Durable, Custom Sealing for Hydraulic Systems

Polypac Tubes are precision-made sealing components designed for hydraulic and oil applications. Built from filled PTFE and a wide range of rubber compounds, our tubes provide reliable sealing, low friction and long service life even in demanding conditions.

Key Features

  • Material options: bronze, carbon, graphite, MoS₂, glass filled PTFE; NBR, FKM, silicone, EPDM, FFKM rubber.
  • Custom sizes and profiles to match special assemblies and tight tolerances.
  • Advanced production and testing equipment for consistent quality.
  • Low wear and strong chemical resistance for longer maintenance intervals.

Why Choose Polypac Tubes?

Polypac combines a large modern factory with deep material expertise. Our 10,000+ m² facility and R&D collaborations with universities keep our designs ahead of the curve. From high-temperature environments to aggressive fluids, we select and test the best material for each job so your systems run smoothly.

Applications

Ideal for hydraulic cylinders, oil seals, rotating shafts, valves and custom machinery. Tubes are commonly used where low friction, tight sealing and long life are required.

Easy Customization and Fast Support

We offer fast prototyping, small-batch runs and full-scale production. Our technical team helps choose materials and tolerances, accelerating integration and cutting downtime.

Choose Polypac Tubes for precision sealing that performs. Contact us to discuss your specifications, request samples or get a quote — engineered seals that protect your equipment and reduce total cost of ownership.

Picture Show

  • T01 TUBE
  • T01 TUBE
  • T01 TUBE

Q&A

What is the purpose of the metal spring in a rotary shaft seal?
The garter spring in a shaft seal (e.g., FSKR, SPGO types) provides a constant radial force on the sealing lip. This ensures consistent contact with the rotating shaft, compensating for minor wear, eccentricity, and vibration to prevent lubricant leakage.
What does "AS568" mean?
AS568 is the Aerospace Standard that defines the dimensions for over 360 standard O-ring sizes. It is the most widely accepted sizing system in North America and globally. An AS568 number (e.g., AS568-214) specifies a precise inside diameter and cross-section.
How can I prevent seal damage during installation?
Use Tools: Always use dedicated installation tools (e.g., picks, cones, guides). Lubricate: Always lubricate the seal and the contact surface. Protect Sharp Edges: Cover sharp threads and edges with tape or use an installation sleeve. Check the Groove: Ensure the installation groove is clean, deburred, and undamaged.
Why did my O-ring fail prematurely?
Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.
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Polypac Industrial Technology Co.,Ltd
No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.
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Tags
PHE Series Seal Kit
PHE Series Seal Kit
O-ring kits
O-ring kits
Heavy Equipment Cylinder Repair
Heavy Equipment Cylinder Repair
Exact Replacement Seal
Exact Replacement Seal
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With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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How Can We Help You?

Whether you need product details, technical support, or a custom solution, we’re here to assist.

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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How Can We Help You?

Whether you need product details, technical support, or a custom solution, we’re here to assist.

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Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

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Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

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