Mechanical Seals in Pumps

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What is the purpose of 'O' ring type gaskets in a stationary mechanical seal?

Prevent leakage between the casing and the mating ring. (correct)

Support the rotation of the mating ring.

Prevent leakage between the shaft and the sealing ring.

Provide cooling to the seal housing.

What materials are commonly used for sealing and mating rings in mechanical seals?

Bronze, carbon graphite, ceramics, StelliteTM, and tungsten carbide. (correct)

Stainless steel and aluminum.

Copper and zinc.

Rubber and plastic.

Why is it important to ensure an adequate flow of quenching or cooling liquid to the seal?

To prevent overheating, grooving, and scoring of sealing surfaces. (correct)

To reduce pump shaft vibration.

To create a squealing sound indicating proper operation.

To prevent distortion of pump parts.

What can cause a leaking seal in a stationary mechanical seal?

Scored or grooved seal faces. Signup and view all the answers

What is the consequence of running mechanical seals dry?

Distorted sealing surfaces due to overheating, grooving, and scoring. Signup and view all the answers

What prevents leakage between the casing and the mating ring in a stationary mechanical seal?

“O” ring type gaskets Signup and view all the answers

What is the function of the stationary sealing ring in a stationary mechanical seal?

Presses against the rotating mating ring to prevent leakage Signup and view all the answers

What can happen if mechanical seals run dry?

Sealing surfaces become overheated, grooved, and scored Signup and view all the answers

What is the indication of a dry seal in a mechanical pump?

A squealing sound Signup and view all the answers

What can cause a leaking seal in a mechanical pump?

Scored or grooved seal faces Signup and view all the answers

Mechanical Seals in Pumps

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Questions and Answers

What is the purpose of 'O' ring type gaskets in a stationary mechanical seal?

What materials are commonly used for sealing and mating rings in mechanical seals?

Why is it important to ensure an adequate flow of quenching or cooling liquid to the seal?

What can cause a leaking seal in a stationary mechanical seal?

What is the consequence of running mechanical seals dry?

What prevents leakage between the casing and the mating ring in a stationary mechanical seal?

What is the function of the stationary sealing ring in a stationary mechanical seal?

What can happen if mechanical seals run dry?

What is the indication of a dry seal in a mechanical pump?

What can cause a leaking seal in a mechanical pump?

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