SEAL-GSK-MNH01Boiler Inspection Door & Shell Gaskets
Industrial Boiler Manhole, Handhole & Flange Gaskets
Comprehensive sealing kit comprising molded elliptical manhole/handhole gaskets, flexible graphite sheets, and high-temp PTFE flange seals.
- Availability
- In Stock / Available for Order
- Brands
- Generic / OEM (Multiple certified brands supplied upon request)
About this part
Complete assortment of high-integrity industrial boiler sealing gaskets engineered for manhole inspection covers, handhole wash-out plugs, mud drum doors, and piping flanges. Features molded elastomer/synthetic rubber elliptical gaskets designed to conform to imperfect mating surfaces, alongside pure exfoliated flexible graphite and restructured PTFE gaskets for severe temperature and steam service.
Key features
- Molded elliptical manhole and handhole gaskets designed for immediate positive seal
- Restructures under clamping pressure to compensate for warped or pitted metal door flanges
- High thermal resistance preventing hardening, embrittlement, and blowouts
- Non-stick formulation allowing clean door removal during annual inspections without scraping
- Available in all standard boiler door dimensions (e.g. 11"x15", 12"x16", 3"x4", 3.5"x4.5")
Typical applications and wear
Boiler shell top manholes, bottom mud drums, handhole access covers, and economizer access doors. Wear is caused by continuous steam baking and door over-torquing.
Compliance
Essential replacement during every annual boiler shutdown, statutory internal survey, and boiler cleaning.
