Polypac HVAC O-Ring Kits — Reliable Seals for HVAC Systems

Polypac HVAC O-Ring Kits deliver high-quality, tested rubber O-rings (NBR, FKM, silicone, EPDM, FFKM) for HVAC compressors, valves, and refrigeration lines. Custom kits and strict QC ensure leak-free performance and long service life.
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Product Description

Overview — Trusted HVAC O-Ring Kits by Polypac

Polypac HVAC O-Ring Kits are designed to provide dependable sealing solutions for heating, ventilation, air conditioning, and refrigeration systems. Backed by Polypac's 15+ years of seal manufacturing experience, each kit contains precision-molded rubber O-rings in commonly used sizes and materials for HVAC applications.

Why choose Polypac HVAC O-Ring Kits?

  • Proven expertise: Founded in 2008, Polypac is a scientific and technical hydraulic seal manufacturer with advanced production and testing equipment.
  • Material range: Kits include O-rings made of NBR, FKM, silicone, EPDM, and FFKM to match temperature, pressure, and chemical requirements.
  • Quality control: Our factory (over 10,000 m², 8,000 m² production space) follows strict testing protocols for durability and leak prevention.

Features and Benefits

Polypac HVAC O-Ring Kits help technicians and maintenance teams reduce downtime and prevent refrigerant or oil leaks. Key benefits include:

  • Wide compatibility with compressors, service valves, fittings, and refrigeration lines.
  • Temperature and chemical resistance options: NBR for general use, FKM for high temperature and chemical exposure, silicone for low-temperature flexibility, EPDM for water and steam resistance, and FFKM for extreme conditions.
  • Custom solutions: We offer tailored kits for special working conditions and OEM requirements.

Easy to Use and Maintain

Each HVAC O-Ring Kit is organized by size and material for quick selection and installation. Clear labeling and packaging reduce service time. Polypac also provides installation guidance and compatibility charts to ensure the correct O-ring choice for specific HVAC components.

Quality Assurance and Support

Our R&D collaboration with universities and research institutions ensures continuous improvement in sealing materials and manufacturing processes. Every kit undergoes dimensional checks, hardness testing, and aging tests to meet industry standards. Polypac’s customer support helps specify the right O-ring material and offers custom manufacturing for unique HVAC challenges.

Trust Polypac HVAC O-Ring Kits for reliable, long-lasting sealing performance—engineered for leak prevention, easy maintenance, and maximum system uptime.

Product Images

  • ORing-Kit 009 Hyud

Frequently Asked Questions

When should I use a spring-energized seal instead of a standard elastomeric seal?
Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.
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 is the difference between a static seal and a dynamic seal?
A Static Seal is used between two surfaces that do not move relative to each other (e.g., pipe flanges, end caps). O-rings and gaskets are common static seals. A Dynamic Seal is used between surfaces that do move (e.g., piston and cylinder, rotating shaft). Rod seals, piston seals, and rotary shaft seals are designed for this purpose.
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.

If you have any questions or concern, please contact us.

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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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Rubber O-Rings
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custom o-rings manufacturer
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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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