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Pivotal Edge – FAQs

How does the seal work?

Once the cover reaches the closed proximity switch it will be securely latched into the six cast hold downs. The pneumatic seal is inflated to 40 psi for a typical road tanker using regulated and filtered truck air.

What pressure has the cover been tested to?

Static testing to 65 psi has been done.

How often does the cover need to be service?

The cover is designed to require minimal maintenance item that need to be watched are:

• Excessive hardened product buildup.

• Air leaks around the seal.

• Binding of components

• Check for abrasions on air lines

However it is good practice to clean excess product build up off the unit  once every few months and initiate a maintenance schedule every 3 to 6 months

See recommended Maintenance in Resource section

What is the certified operating pressure of a Pivotal Edge hatch?

The typical operating pressure for road tankers is 2 bar and for rail tankers its 2.5 bar, the Pivotal Edge hatches are certified in both of these applications

What is the expected life cycle of the hatch seal?

Automated factory trials indicate 140 000 cycles was achievable. Customers are typically getting 12 to 18 months use from a seal under normal operating conditions.

What if the seal leaks?

If the inflatable seal develops a leak it can be replace by removing the top cover. This should be done in a safety cage. Replacement should only take a few minutes. The seal requires no adhesives to hold it into place.

Will the seal leak while I am driving in the rain?

The top cover has been designed to channel the water to drain on the outside of the latches.  Also the seal is only deflated when the cover is open. A check valve will maintain the pressure in the seal even when the trailer air is released or drained

What will it take to install the pivotal edge?

They are easy to install.  No specialty tools are required.  Takes between two to four man hours to install. You will find an installation guide in the resources section

What happens if someone tries to open the cover when the tank is pressurized?

There will be lots of dust and noise, but no damage to the cover.

What if something jams the cover while closing?

Use fall protection to inspect the cause and clean if necessary.

What temperature is the seal rated for?

-40º C to 65º C