50PCS Red VMQ Silicone O-Rings CS1.8mm Sealing Gasket Washers

50-Pack Red VMQ Silicone O-Rings — Reliable Sealing for Machinery & Plumbing

Keep your systems leak-free with these high-quality Red VMQ Silicone O-Rings. Supplied in a generous pack of 50, these ring gaskets are crafted from premium food-grade silicone rubber (VMQ), offering outstanding elasticity, temperature resistance, and long-lasting compression set performance. Whether you're tackling a plumbing project, servicing industrial machinery, or maintaining hydraulic and pneumatic systems, these standard-spec O-rings deliver a tight, dependable seal every time.

Key Specifications

• Material: VMQ Silicone Rubber
• Color: Red
• Cross Section (CS): 1.8 mm
• Inner Diameter (ID): 4.5 mm – 6 mm (select your size)
• Shape: Ring Gasket (Standard)
• Quantity: 50 pieces per lot
• Made in Mainland China

Why Choose These O-Rings?

• ✅ Excellent Elasticity: VMQ silicone maintains flexibility across a wide temperature range, reducing the chance of deformation or cracking over time.
• ✅ Versatile Application: Suitable for machinery, plumbing, hydraulics, pneumatics, automotive, and household appliances.
• ✅ Standard Sizing: Conforms to standard O-ring dimensions for easy, drop-in replacement.
• ✅ Chemical Resistance: Resists many oils, fuels, and common chemicals — ideal for demanding sealing environments.
• ✅ Bulk Value Pack: 50 pieces mean you always have a spare on hand for maintenance and repairs.

Common Applications

• Plumbing pipe joints and faucet repairs
• Hydraulic and pneumatic cylinder sealing
• Industrial and manufacturing machinery
• Automotive engine and fuel system components
• Home appliances and water filtration systems

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Frequently Asked Questions

Q: What does VMQ mean in VMQ silicone O-rings?

A: VMQ stands for Vinyl Methyl Silicone, a type of silicone rubber known for its excellent flexibility, wide operating temperature range (typically –60°C to +200°C), and good resistance to oils and weathering. VMQ O-rings are a popular choice for demanding sealing applications in machinery, plumbing, and automotive systems.

Q: Are these O-rings suitable for both hot and cold water plumbing applications?

A: Yes. VMQ silicone rubber performs reliably across a broad temperature spectrum, making these O-rings well-suited for both hot and cold water plumbing, as well as steam and other high-temperature fluid systems. Always verify the specific temperature and pressure ratings align with your application requirements.

Q: How do I know which inner diameter (ID) size to choose?

A: Measure the groove or channel where the O-ring will sit. The inner diameter (ID) should match the diameter of the shaft or bore the O-ring seals against. These are offered in ID sizes from 4.5 mm to 6 mm with a 1.8 mm cross section — select the size that matches your application's groove specifications for a proper, leak-free seal.

Q: Can I use these O-rings for DIY home repairs?

A: Absolutely. The standard sizing and reliable silicone material make these O-rings an excellent choice for DIY plumbing repairs such as replacing worn tap or faucet seals, water filter housing gaskets, and similar household applications. The 50-piece bulk pack ensures you have extras ready for future maintenance needs.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.