BLACKMER IOM E Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 47 / 52

1901-a00 47
SYMPTOM OR PROBLEM: PUMP DOES NOT DEVELOP ENOUGH PRESSURE
Problem Cause(s):

Viscosity is lower than expected
 Air in the inlet fluid stream

Pump is cavitating

Relief valve is opening
 Pump components are damaged or worn

Bypass or auxiliary line in the discharge piping is open

Head is positioned incorrectly
 Cooling-path plugs are not installed

Cooling path is plugged

Relief valve is stuck open
SYMPTOM OR PROBLEM: RELIEF VALVE DOES NOT OPEN
Problem Cause(s):

Pump is running in the wrong direction

Relief valve is stuck closed
SYMPTOM OR PROBLEM: LEAKAGE FROM HEAD/CASING AREA
Problem Cause(s):
 O-ring material is not compatible with pumped fluid

Sealing surfaces for the O-rings are damaged

Bolt(s) are loose or missing
 O-ring is damaged or missing
SYMPTOM OR PROBLEM: LEAKAGE FROM CASING/MAGNET-HOUSING AREA
Problem Cause(s):

O-ring material is not compatible with pumped fluid
 Sealing surfaces for the O-rings are damaged

Casing or magnet-housing mounting flanges are cracked

Bolt(s) are loose or missing
 O-ring is damaged or missing
SYMPTOM OR PROBLEM: LEAKAGE FROM HEAD/VALVE-BODY AREA
Problem Cause(s):

O-ring material is not compatible with pumped fluid
 Sealing surfaces for the O-rings are damaged

Bolt(s) are loose or missing

O-ring is damaged or missing
SYMPTOM OR PROBLEM: LEAKAGE FROM DRIVE-SHAFT AREA
Problem Cause(s):
 Canister is damaged or leaking