Blue Max

Blue-Max Series 450 is a line of boiler handhole and manhole gaskets. The gaskets seal the access openings on a boiler's shell and drums, behind the plates that come off for inspection, cleaning and repair.

BoilerSupplies.com carries Blue-Max Series 450 gaskets in elliptical and obround shapes. They appear under Blue Max Boiler Handhole and Manhole Gaskets and in a second listing of the Series 450 gaskets. Pick by shape first, then by size. An elliptical opening takes an elliptical gasket, an obround opening takes an obround one, and the dimensions follow the plate.

Key facts

• BoilerSupplies.com lists Blue-Max Series 450 boiler handhole and manhole gaskets.

• Blue-Max Series 450 gaskets are listed in elliptical and obround shapes.

• Handhole and manhole gaskets seal the access openings on a boiler's shell and drums.

• A handhole or manhole gasket must match the shape and the size of the plate.

• The usual practice is a new handhole or manhole gasket once a plate has been opened.

Which gasket is a manway gasket, and which is a handhole gasket?

Manway gasket is another name buyers use for a manhole gasket, the one on the large access opening. A handhole gasket is for the smaller access openings. Hand hole plate gasket is also heard at the counter. Blue-Max Series 450 covers handhole and manhole openings.

What shape is an obround boiler gasket, and what shape is an elliptical one?

An elliptical gasket is a true oval, curved the whole way round. An obround gasket has two straight sides joined by rounded ends, like a racetrack. The two do not interchange, so the shape of the plate decides which Blue-Max Series 450 gasket to order.

How do I measure for a Blue-Max Series 450 gasket?

Measure for a Blue-Max Series 450 gasket by shape first, then size. State elliptical or obround, then the dimensions of the plate or of the old gasket: the long axis, the short axis and the width of the gasket face. Add the boiler make and whether the opening is a handhole or a manhole.

Can a handhole or manhole gasket be reused after the plate is opened?

The usual practice is a new gasket once a plate has been opened. Gaskets are changed whenever a plate comes off, so they are ordered ahead of the job. Plants that open several plates at an inspection order Blue-Max Series 450 gaskets for those plates beforehand, by shape and size.

Tell BoilerSupplies.com the shape, the plate dimensions and the quantity of Blue-Max Series 450 gaskets: 1-770-957-9599 or toll free 1-800-780-3776.