ROPAC COMPONENT SEALS
Installation, Operation & Maintenance Instructions
3
TYPE R33/34/50
8.1 Decommissioning the equipment
Ensure that the machine is made safe to work on by using a secured
isolation under the sole control of the person(s) working on the machine
and which includes the following:
•
The driver is fully isolated from the machine using an appropriate,
secured isolation method;
•
Any pressure is safely and fully released;
•
Any liquid is safely drained;
•
Any gas safely vented;
•
Any chemicals are safely and fully removed;
•
Any other energy storage is safely and fully released;
•
The isolation is proved to be effective at the point of work before work
is commenced.
If the machine has been used on toxic or
hazardous fluids, ensure that the machine is
correctly decontaminated and made safe prior to
commencing work. Remember that fluid is often
trapped during draining and may be present inside
the seal chamber. The machine instruction manual
should be consulted to check for any special
precautions.
8.2 Removing the seal
NOTE
Remove from the machine with care, the seal may be
suitable for reconditioning after service, if otherwise
undamaged.
1. Check the pump at the coupling for proper alignment of the driver
or motor.
ATTENTION
For a cartridge seal, the setting spacers must be refitted
before starting the removal procedure.
2. Ensure that the gland plate nuts/bolts are securely tightened
according to the pump manual instructions, and all screws are
securely fastened.
A mechanical seal must always be serviced after removal from the
machine. In order to maximize reliability and minimize safety risks, it
is strongly recommended that used seals are returned to John Crane
for rebuilding to as-new specification (essential for non-contacting gas
seals). Alternatively ask for John Crane service personnel to visit site. For
seal dismantling and assembly instructions, refer to John Crane.
See “Transportation and Storage” section regarding shipping.
NOTE
It is recommended that a low pressure integrity test
is carried out after repair and before installation on
the machine.
8.3 Spare parts
Only John Crane spare parts should be used to recondition seals.
It is advisable to stock on site sufficient spare seal cartridges or the
replacement parts shown on the installation drawing or as advised by
John Crane to allow immediate replacement of the seal in the machine.
The order codes for spare parts can be found in the parts list on the
installation drawing or from John Crane directly. In the case of non-
contacting gas seals, only complete cartridges should be stored.
The following data is necessary for spare part orders:
•
Part number
•
Quantity
9. Environmental Aspects
9.1 Company policy extract
“It is the policy of John Crane to manage its business activities in an
environmentally responsible manner, comply with all relevant laws and
regulations, prevent pollution, and continually improve its environmental
performance, certification to the latest issue of ISO 14001 ensures
compliance.”
John Crane adopts the
Design For the Environment (DFE)
principle
in making this product. Using this product will benefit the environment
directly by:
•
Preserving valuable material resources
through recycling of raw
materials, the use of environmentally friendly packaging materials,
the re-use of these high quality durable seals due to their ability
to be refurbished and minimized transportation using world wide
manufacturing and service centers .
•
Reducing waste
of precious resources through decreasing the risk of
leakage
•
Reducing energy consumption
through seal selection using total life
costs
•
Preventing pollution
through controlling harmful emissions to the
atmosphere
9.2 Recycling product refurbishment
This product has been designed for potential reuse. Depending on its post
operation condition the seal may be repaired or rebuilt for further use. The
metal components can generally be reused. The primary & mating rings
may be re-lapped and reused. Drive screws and springs are replaced.
O-rings must be replaced. Please consult John Crane for assessment of
seal condition and its potential reconditioning.
9.3 Disposal
When the product is considered to be beyond economical repair and
potential reuse, it should be disposed of by environmentally beneficial
means. The product can be disassembled with ease but appropriate
personal protective equipment (PPE) should be worn to prevent contact
with any harmful residue that may be inside the seal.
9.4 Scrapped components
These should be handled with extra care due to possible contamination.
They should be recycled through approved local industrial recycling
plants.
9.5 Special materials
Follow the local relevant guidelines for the environmentally friendly
disposal of assembly lubricants, supplied fluids and scrapped
components. Please refer to Section 2, Safety Instructions.
