PTFE Manhole Covers & Seals
PTFE Manhole Covers & Seals
Our PTFE (also known as Teflon®) manhole covers and seals provide safe, leak-free access to chemical tanks, reactors and pressure vessels. The PTFE sealing surface resists corrosion and maintains integrity across temperature and pressure cycles, protecting both the process and the operator.
Key Features
- Corrosion-proof PTFE sealing surface
- Leak-free access under pressure cycling
- Resistant to a broad range of chemicals
- Durable, long-service-life construction
- Sized to your vessel and flange
Typical Applications
FAQ
PTFE Manhole Covers & Seals — FAQs
Why use PTFE (Teflon) manhole covers and seals on chemical tanks?+
PTFE (Teflon) manhole covers and seals resist almost all chemicals, hold their seal across temperature and pressure cycles and are FDA-compliant for product contact — giving corrosion-proof, leak-free access on chemical and pharmaceutical tanks.
How are PTFE manhole covers sized?+
They are sized to the vessel flange diameter and bolt pattern, with thickness and grade chosen for the operating pressure and temperature. Even bolt loading is essential to avoid over-compressing the PTFE.
Can manhole seals be custom made for our vessel?+
Yes. We manufacture PTFE manhole covers and seals to your vessel and flange dimensions, in virgin or filled grades suited to your process conditions.
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