Pump
Feedback
f
Dea
Rega
Emilio Casado Flo
CNA and CNT
Article 1: How does pump
suction limit the flow?
One of the claimed advantages of the cent
displacement pumps is thei
Since a cent
a system cu
pump is easily changed.
Article 2: Specific Speed
(NS) - why is it dimensionless, or is it?
Pump specific speed
is one of the seve
pumps. Pump designe
them to analyze and
compa
Othe
Article 3: Suction Specific
Speed (NSS)
Suction speed is
anothe
pumps. Much of the
discussion on specific speed (NS) applies to suction
specific speed
(NSS).
Article 4: What is L3D4 and
why is it good if it is low?
L3D4 (L-cubed ove
ability to
Article 5: Relief Valves for
PD Pumps - internal or external?
Positive
Displacement pumps a
centrifugal pumps
can be thought as p
Article 6: Metallurgy - is
316ss soft or hard?
What so
as any austenitic
stainless steel would be. Right? Mmmmm… Why is
stainless
steel so good
against cavitation? - if it we
imploding bubbles e
Article 7: Lubrication
practices: How Grease-Lubricated Bearings Function
A shielded, g
centrifugal pump
having the ball and-cage assembly as its impelle
having the annulus between the stationa
Article 8: Stable and Un-stable pump curves – why a problem?
This a
when
unstable cu
Article
9: The Essence of Equipment Failure Analysis - Theory, Approach, and a Field
Case Study
by
Sou
Manage
Hindustan Pet
Mumbai Refine
Failu
Article #10: PUMP-OUT VANES
– how and why?
This a
Article #11: PumpSmart Module demonstrates energy savings for the
Augusta Paper Mill
Article
12: “DYNAMICS OF ORGANIZATIONAL BEHAVIOR”, - an
article by S.Chatterjee, discussing a human element of
the enterprise, and problem solving differences and similarities across the
cultural boundaries.
ARTICLE #13: PARALLEL OPERATION OF CENTRIFUGAL
PUMPS and the Importance of Curve Stability
Article
14: Mean Time between Failures – a Reliability Approach, - anothe
Sou
Manage
Hindustan Pet
Mumbai Refine
Article 15:
CAVITATION – A DANGEROUS ENEMY TO PUMPS - by:
Robe
Robe
Fo
ARTICLE 16: IS YOUR PUMP BURNING MONEY AWAY?
– Impelle
Article 17: What Happens When a Pump Operates
Off-Peak? – more on pumps ope
Article #18: “Pump Reliability – What Does
this Term Mean to You?” – another a
Article #19: WHAT HAPPENS WHEN a PUMP NO
LONGER OPERATES AT OPTIMUM CONDITIONS (Part 1)
Article 20: WHAT HAPPENS WHEN A PUMP NO LONGER
OPERATES AT OPTIMUM CONDITIONS (Part 2)
Article #21:
Pumps Reliability and Energy Efficiency Improvement Program – How much ene
Article #22: TITANIUM APPLICATIONS -
Titanium offe
Article #23: Progressing Cavity Pumps fo
Article #24: Bearing Life Extension and
Reliability Features of Modern ANSI Pumps – by
Article #25: Submersible
Pumps (d
Article #26: Proper Pump Piping Procedure – 10
steps
Article
#27: Effect of Mechanical Unbalance on Vibrations
Article #28: Roller
Bearings Lubrication”, cont
Article #29: Electric Motor Testing and
Repair Issues, - Moto
Article #30: API 8th versus 9th
versus 10th versus ISO: a document that was put togethe
Article
#31: “To G
Article #32: “Have You Seen Chains
Inside You
Article #33: “Pump
Ope
Article #34: “P
Article #35:
“What do we know and what do we think we know”
Article #36: “Pump Cont
Article #37: How Much Energy can we Save
by Redesigning (not simply replacing!) Impeller Hydraulics?
Article #38: Newtonian
and non-Newtonian Fluids. Viscosity Effects on Centrifugal Pumps – New
Standard From Hydraulic Institute
Article #39: Parallel
and Series Operation of Pumps, and Operating against Multiple Systems
Article #40:
Bearing Forces Due to Shafts Misalignment
ARTICLE #41: Pump Training – Do You Need
It?
ARTICLE
#42: TRANSIENT START-UP PROBLEMS FOR PUMPS WITH SYNCHRONOUS
MOTORS
ARTICLE
#43: LIFTING WATER –
WHAT ARE YOUR PUMP OPTIONS?
ARTICLE #44: HOW TO EVALUATE VFD SPEED EFFECT ON HYDRAULICS
ARTICLE #45: Focus on Fundamentals: Centrifugal Pumps – Overhung
Impeller
ARTICLE #46: Will Running Pumps
Slower (!) Help NPSH problem?
ARTICLE
#47:
Pumps to Systems Interaction, presented by Ibrahim (The Pumpman), June
2009, at
ARTICLE #48: Human Resources Pointers for the Job Seekers
ARTICLE #49: Global and Planetary Change – how do
we affect it?
ARTICLE
#50: Cars and Pumps ?! or - (How Much Real Help Can We Get?)
ARTICLE #51: BENEFITS OF THE ON-LINE VIBRATION
ANALYSIS VERSUS VIBRATION TRENDING, L. Nelik, H. Tanner,
P. Higgins
ARTICLE #52: How Much Energy does Your Piping Burn?
Article #53: Power Plant Transients – Why Deaerators Causes Pump Trips - Part 1
Article #54: Power Plant Transients – Why Deaerators Causes Pump Trips - Part 2
Article #55:
The Duke is Back! (#1 of 4) Pumps versus
Donuts
Article #56: The Duke is Back! (#2 of 4) Pump Repairs – a "Fuel to the Economy"
Article #57: NPSH and Developed Head
Article #58: Pumping Water up the Building - Where Should a Pump be?
Article #59: INTERMITTENT SEAL LEAK IN LPG PUMP
Article #60: SEEING IS BELIEVING? - NOT ALWAYS! - A TRICKY SUCTION GAGE STORY...
Article #61: NEW TECHNOLOGY? - or hocus-pocus?
Article #62: MATERIALS
Article #63: Recommended preventive maintenance checks for centrifugal pumps and drives; fits and clearances
Article #64: Enhanced Methods of Pump Sealing
Article #65: RELIABILITY CENTERED MAINTENANCE - NASA STUDY
Article 66: The Duke is Back! (#3 of 4) Metallurgy Examined - Use the Right Materials for the Wear Rings
(This is a continuation of Parts 1-2 (articles 55 and 56)
Article 67: The Duke is Back! (#4 of 4) Did you Adjust Your Pump Data for the Motor Efficiency?
(This is a continuation of Parts 1-3 (articles 55, 56, 66)
Article #68: U.S. Federal Budget Deficit Solution by a Small Pump Business Owner
Readers’ comments
are welcome.