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Idiomas disponibles
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REPAIR AND MAINTENANCE PROCEDURES
BALL VALVES AND SEATS MAINTENANCE
1. Close fluid valves.
2. Drain the fluid from inside the pump. Anticipate a drainage of fluid
from inside the pump.
3. Remove the inlet and outlet manifolds. Take note of the orientation of
the manifolds.
4. Install a new set of valves or seats according to these assembly
drawings. Tighten the manifold bolts with a maximum torque of
80 N·m (60 ft.lbs).
IMPORTANT: Always approximate manifold bolts before final
tightening.
AIR VALVE
MAINTENANCE
1. Remove the six screw of the "aircap".
2. Remove the "aircap" and pull out
the air valve.
3. Place the bottom gasket in the
new air valve.
4. Insert the new air valve.
5. Place the "aircap" with the gaskets
in its housing.
6. Tighten the screws with a maximum
torque of 15 N·m (11 ft.lbs).
AIR SENSOR MAINTENANCE
12
855 859 R. 05/22
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
Inlet manifold bolts
80 N·m (60 ft.lbs)
The air sensors are on the central body.
To access them, follow the procedure for "Replacing diaphragms".
Once removed the covers following procedure:
1. Remove the two screws that secure the air sensor to the top.
2. Remove all components of the sensor. Clean the area.
3. Introduce new components in the order shown.
4. Fit the remaining components in reverse order. Fit the sensor cover and tighten the screws.
Outlet manifold bolts
80 N·m (60 ft.lbs)
Soft Seat
Hard seat
assembly
IMPORTANT:
Follow the diaphragm maintenance procedure to ensure
no damage in the diaphragm during its assembly.
IMPORTANT:
Soft seats (NBR, Hytrel
®
Santoprene
) don't need extra
®
seals and the seat is simetric.
Hard
seats
(PP,
POM,
PVDF,
aluminum, stainless steel), use
additional o-rings for sealing.
Balls must be always assembled
over the seat.
IMPORTANT:
When doing a
pump maintenance that implies
manifold disassembling and pump
is fitted with PTFE o-rings (white
colour), they must be replaced by
new ones in order to avoid fluid
leakages".
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