Burkert Type 2037 - Manual (Page 11)

11
Assembly
Before welding, check the batch number indicated on the
supplied manufacturer’s certificate 3.1.B.
procedure:
→
Position the flange into the hole so that the flange surface just
touches the drain surface.
→
Fix 4 welding points and check the position of the valve.
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Weld on the valve to it projects evenly inside and outside the tank
while gas is supplied and using welding material compatible with
valve steel 316L (DIN 1.4435).
→
Let the valves cool before grinding them smooth and polishing them
according to the applicable specifications.
These instructions are designed to assist in the installation of the tank
bottom valves and help avoid deformations and relaxations within the
tank.
Observe the laws applicable in the country with reference to
the qualification of welders and to welding procedures.
6.2.6 Preparatory work
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Clean pipelines (sealing material, swarf, etc.).
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Support and align pipelines.
devices with welded body:
Before welding the body, the actuator and diaphragm must
be removed.
6.3 installation
If used in a corrosive environment, we recommend running
a pneumatic hose from all free pneumatic connections to a
neutral atmosphere.
Warning!
risk of injury from incorrect installation!
Non-observance of the specified tightening torque is hazardous
as the device may be damaged.
▶ Observe tightening torque during installation (see „Tab. 2: Tight-
ening torques for diaphragms“).
6.3.1 devices with welded body
note!
to avoid damage!
Before welding the body, the actuator and diaphragm must
be removed.
remove actuator and diaphragm from the body:
procedure for control function a
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Pressurize lower control air connection with compressed air
(value as indicated on the type label) (see „Fig. 7“). This is
required to detach the diaphragm without damage from the body.
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Loosen fastening screws crosswise and remove actuator
together with diaphragm from the body.
→
Weld body into the pipeline.
procedure for control functions b and i
→
Loosen fastening screws crosswise and remove actuator
together with diaphragm from the body.
→
Weld body into the pipeline.
english
Type 2030, 2031, 2031 K, 2032,
2033, 2037