Groth 7588 - Manual (Page 6)

IOM-7588
REV. B 12541
Ref. 97288
6
damaged, it should be replaced immediately
with a new one.
5. Verify that the element openings are not
obstructed by viewing a light source through
the element passages. If the flame element
is dirty it can be cleaned by one of the
following methods:
 Compressed air.
 High pressure steam or water purge.
 Solvent wash followed by compressed air.
WARNING:
Never try to clean the element by inserting a
sharp tool or probe into the orifices. Any
damage to the integrity of these passages
can render the flame arrester ineffective.
6. Inspect the sealing gasket for damage and
replace if necessary.
7. Reassemble the housing, bases and
gaskets. The counterbores will position the
housing on the base centerline. Insert the
studs and torque all fasteners to half the
value listed in Table 2 in a staggered,
alternating pattern to provide an evenly
compressed gasket joint.
8. Lubricate all studs and nuts with an
appropriate thread lubricant. If the arrester
will see high temperature service or stainless
steel fasteners are used, select an anti-seize
compound such as moly-disulfide.
9. Make up the final torque and check that no
further nut rotation occurs at the specified
torque value. The torque values are based on
original gaskets supplied by Groth
Corporation.
Note:
When replacing a temperature sensor,
make sure that the tip of the sensor
makes firm contact with the end of the
integrated thermowell.
Table 2
HOUSING STUD TORQUE CHART
Lb.Ft. [Nm]
SIZE
(mm)
TORQUE
7588
2”
(50mm)
60 [82]
3”
(80mm)
60 [82]
4””
(100mm)
60 [82]
6”
(150mm)
103 [143]
8”
(200mm)
103 [143]
10”
(250mm)
170 [231]
12”
(300mm)
170 [231]