Chandler Engineering
5000 SERIES PUMP MANUAL
[76]
from the body of the cylinder, continue to pull
straight back
until the seal and seal
backup ring are released from the piston.
For best results, remember to keep cylinder barrels, seal back–up rings and pistons
together and reinsert them into the cylinder they were removed from. For example, the
back–up ring and piston from cylinder 1A should be re–installed into cylinder 1A.
NOTE:
Usually some fluid remains in the pump cylinder and spills out when the piston is free from
the seal. Be prepared to catch or wipe up this excess fluid. When the cylinder barrel is completely
detached, it can then be cleaned and inspected.
11.2.2
Changing the Seals
Seal life depends on the type of seal used and the operating conditions of the pump (pressure, flow
rate, and type of fluid that is pumped).
•
Typical seal life using water is approximately 8,000 hours.
•
Fluids or slurries may require seal replacement sooner.
•
High temperature seals usually operate between 2-5 temperature cycles.
NOTE: Your actual operating conditions may require an accelerated schedule for replacing the
seals.
The design of all Quizix pump cylinders makes changing seals a simple procedure. This section
instructs the user how to change seals. Included are the following:
•
Cup-Type and T-Type Seals, Section 11.2.2.1
•
Seal Removal Procedure for All Seals, Section 11.1.2.2
•
Seal Insertion Procedure for Cup–Type Seals, Section 11.2.2.3
•
Seal Insertion Procedure for T–Type Seals, Section 11.2.2.4
11.2.2.1
Cup-Type and T-Type Seals
The cup–type seal used in Quizix pumps is shown in Figure 11-1. It is asymmetrical, with one
side flat and one side having an open area around its circumference, with a metal spring inside
this opening. A cross–section of this type of seal resembles a cup, or, the letter U.
Содержание Ametek Quizix 5000 Series
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