22
Emergency Reserve Manifold
2005715.05
6.3.3 Fully disconnect the two 1” joints as shown
in gure 18 and gently remove the unit by sliding
it towards you. Take care not to damage the seals.
6.3.4 Remove the two 1/2” BSP x 1” at face
connectors and t to the new regulator
6.3.5 Inspect the existing seals and replace if
required, see gure 18 for seal part numbers.
6.3.6 Taking care not to damage the O-ring seals
replace the new regulator as shown in gure 18,
and fasten the 2 at face joints.
6.3.7 Follow steps in section 6.11 bring the ERM
back online.
6.4 Replace 1st stage regulator
6.4.1 Complete steps in section 6.1 before
carrying out any component replacement on the
ERM.
6.4.2 Slowly turn the swivel nut of the top 1”
connection. If the you hear gas escaping do not
fully unscrew the joint until the system is fully
drained.
6.4.3 Fully disconnect the 3 joints as shown in
gure 19 and gently remove the unit by sliding it
towards you. Take care not to damage the seals.
6.4.4 Remove the relief valve and blanking plugs
form the old regulator and t to the new unit.
6.4.5 Inspect the existing seals and replace if
required, see gure 19 for seal part numbers.
6.3.6 Taking care not to damage the O-ring seals
replace the new regulator as shown in gure 19,
and fasten the 2 at face joints.
6.3.7 Follow steps in section 6.11 bring the ERM
back online.
6.5 Replace 2nd stage relief valve
(See table 8 for part numbers)
Table 7: 2nd Stage Relief Valve Part Numbers
Nominal Line
Pressure
Relief Set
Pressure
Part
Number
4 Bar 5.3 bar 2000122
7 Bar 11 bar 2000123
11 Bar 13 bar 2000140
6.5.1 Complete steps in section 6.1 before
carrying out any component replacement on the
ERM.
6.5.2 Slowly turn the left hand 1” swivel nut
connection. If the you hear gas escaping do not
fully unscrew the joint until the system is fully
drained.
6.4.3 Fully disconnect the two 1” joints as shown
in gure 20 and gently remove the unit by sliding it
towards you. Take care not to damage the seals.
6.4.4 Inspect the existing seals and replace if
required, see gure 20 for seal part numbers.
Remove the 1/8 blanking blug from the old relief
valve and t to the new unit.
2 x 1” at face
connections with swivel
nut and O-ring seal
(2000152)
2nd Stage Safety Relief Valve1/8” blanking plug and seal
Figure 20 - 2nd Stage Relief Valve Replacement
Figure 19 - 1st Stage Regulator Replacement
1” at face connection
with swivel nut and
O-ring seal (2000152)
3/4” at face connection
with swivel nut and
O-ring seal (2000179)
5/8” at face connection with swivel
nut and O-ring seal (1822236)
1st Stage Regulator
Bonded seal part numbers, 1/4” (2004808), 3/8” (1824977)
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