36
Install the gasket, air inlet cover and bolts. Connect the air inlet to the pump. The pump is ready
for use.
Plastic and Metallic Body Pump Check Valve Maintenance
Close suction and discharge line of the pumps before starting check valve maintenance. Cut
pressure air inlet, and relieve the pressure in the pump. Drain the uid in the pump.
Remove the bolts in uid inlet and uid outlet lines in section shown in the gure to access the
ball valve. Check spherical surfaces of the balls for wearing, abrasion or cuts.
Ball slots should be controlled in terms of potential materials adherent on internal and external
surfaces for cut and wear. Ball surfaces should be placed completely on surfaces of the ball
seats. This affects the efciency of the pump. Replace worn and damaged parts when necessary.
Regroup check valve parts.
2A
5
6
5
1A
6A
6
4
6A
6A
6A
1A Elbow, Suction
6A Gasket, Ball, Seat
6 Ball Seat
5 Ball, Check
4 Chamber Outher
2A Elbow, Discharge
MIT 160 MIT 550
Plastic Body Metal Body
2A
6A
6A
5
4
6
6A
6A
5
6
1A
2A
1A
4
6
6
5
5
1A Elbow, Suction
6A Gasket, Ball, Seat
6 Ball Seat
5 Ball, Check
4 Chamber Outher
2A Elbow, Discharge
1A Elbow, Suction
6 Ball Seat
5 Ball, Check
4 Chamber Outher
2A Elbow, Discharge