These are some of the questions we have been asked about Lemco Seals.

5 x 1 ¼ Lemco Drawdown Well Seal

What is the Lemco Seal made of?

The Lemco Seal is made of mild steel and pliable rubber.

What are the specs on the rubber?

The rubber is a buna synthetic rubber.

Why is the outside diameter of the seal larger than the ID of the well?

The rubber has to fold up all the way around before it will go down in the well. This is how it makes an air tight seal.

Are some of the Lemco Seals made of brass?

The Seals are plated with a zinc-yellow coating for its protective and decorative properties and this gives them a gold color.

Do you offer seals in stainless steel?

Yes, we do.

Is it hard to push the seal down into the well?

Some drillers wet the well casing ahead of the seal, then put water on top of the seal to help push it down.

Is it hard to pull the seal out when the well needs repairing?

You will need some type of lifting device to pull it out.

Do you have replacement rubbers, when the pump is pulled for service?

Yes, we do. Just tell us the size of the seal.

Do you make a 6 x 4 Lemco Seal?

No, we don't, the flange would be too narrow. Same for an 8 x 6 seal.

Will the seal still work if it's mounted 20-30 feet above the pump?

To best control drawdown, it should be mounted as close to the pump as possible.

Will the Lemco Seal work to stop the flow in an artesian well?

It depends on how much flow there is. Some have used two or more successfully.

end faq