Armstrong 4280 Series 설치 및 운영 지침 매뉴얼 - 페이지 9
{카테고리_이름} Armstrong 4280 Series에 대한 설치 및 운영 지침 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Armstrong 4280 Series 10 페이지. Motor mounted pump
Armstrong 4280 Series에 대해서도 마찬가지입니다: 설치 및 운영 지침 (4 페이지), 서비스 작업 지침 (4 페이지), 설치 및 운영 지침 매뉴얼 (12 페이지)
페이지 인쇄
symptoms
Bearings overheat
Pump delivery fails after start
Pump seized
Pump does not prime
Pump noisy
Motor overloading
Motor overheating
Series 4280
motor mounted pump
reasons
• Insufficient cooling to stuffing box.
• Misalignment of pipework.
• Dirt in bearings.
• Bearings too tight.
• Bearings badly installed.
• Suction line not filled.
• Air or vapour pocket in suction line.
• Inlet of suction pipe insufficiently submerged.
• N.P.S.H. available too low.
• Suction lift too high.
• Air leaks in suction line, gland or pump joints.
• Blocked suction.
• Impeller damaged.
• Pump not primed.
• Misalignment of pipework.
• Operation at low capacity
• Pump not primed.
• Inlet of suction pipe insufficiently submerged.
• Suction lift too high.
• Blocked suction.
• Incorrect rotation.
• Misalignment
• Air or vapour in suction line.
• Inlet or suction pipe insufficiently submerged.
• N.P.S.H. available too low.
• Air leaks in suction line, gland or pump joints.
• Blocked suction.
• Impeller damaged.
• Operation at low capacity.
• Rotating element out of balance.
• Shaft bent.
• Poor foundations.
• Operation at high capacity.
• Misalignment
• Speed too high.
• Low system friction.
• S.G. too high.
• Misalignment
• Speed too high.
• Low system friction.
• Pump liquid density is greater than anticipated.
in sta l l a t io n &
o pera t ing instr uct io n s
9