Forgive me for my general question.
Because some special trouble I can't drill on the pump casing for temperature detection. someone advise me to use a bleed ring with RTD to detect.
Does anyone have experience on bleed ring with RTD for temp.detect? where to install bleed ring, how to install...
Sorry ,I don't know where i should post this topic,so I found the material section.
I met some question, any one can help look at the drawings,
what material is for this beer vessel and how to adhere this material with the stainless steel vessel.
below is link...
who can explain clearly warm up for chemical process pump? In many case like pumping Aromatic Hydrocarbon need warm up before start? any one knows ? why need warm up ? how to warm up ?the piping or capacity ,temperature ?
I would ask you a question about our double suction pump , I didn’t understand one term ,I feel it is diffcult to explain clearly. we first call it : pump reverse rotation rate .
In my point this rate means relation between pump reverse rotation speed and pump regular speed .when pump is...
Anyone can give a specific explanation for this two glossary in the pump curve, in my view I think the same meaning sometimes. but in certain curve data it will mark non overloading power at certain capacity ,not maximum capacity of rated impeller diameter. that's confused.
Hi Buddies, we visited a water &sewage water co. The factory includes an inlet pump station and an out pump station. There are 6 split case pumps in each pump station.
The customer told us that the first 4 pumps of each pump station were all damaged at the shroud of the lead edge, They had...
http://photo.163.com/photos/sunloco/67009346/
Please see the link about the pics of pump casing.
This is seconde casing of in-line pump that was damaged.we could find any problem for medium or structure failure.
in the casing near to casing wear ring there is obvious abrasion ,especially there...
Anyone know which kind of pump is for seawater reverse osmosis?
the specification is
Capacity : 1315 T/H, 75 bar.
Nomally we use reciprocating pump for RO. but this capacity is terrible.
Any comment and advise is appricated .
In many building cases we supplied HVAC pumps with standard motor though it will be controlled with frequency inverter ,Normally I use standard epact motor to meet variable frequency needs,but I want to know what variable range is frequency for standard normal motor ?
and under what situation...
Single stage split case pump basically pump water in normal temperature, but if we use it to pump water in 120 centigrade,how should we cool this pump ? cooling bearing and mechnical seal ?Is there any drawing available in website ?
I saw a selection table about electric drive fire pump (FM approved ,U.L. listed) In this table I found that BHP of most fire pump is higher than electric motor HP.
for example : capacity :500GPM,rated pressure :210Psi, the BHP(brake Horsepower) is 112 HP, the electric motor fitted is only 100...
Is there 175hp e-motor in standard power range?
In IEC standard I see there is 132Kw E-motor,but in NEMA standard it seems only 150hp and 200 HP?
any one kindly enlightens me a little
I often see the service factor of motor when I select e-motor , but I don't know the exact meaning of service factor,I often see factor 1.1 and 1.0 , Could any one explain what is service factor and what do we need to pay attention to when we select factor ?
I saw many start-up methods :
Across the line ; Part winding; Wye-delta open;Wye-delta closed ; Primary transformer ;Auto Transformer; Solid state;
Who can tell me under what conditions I need to use the corresponding start-up methods ?
I often see the service factor of motor when I select e-motor , but I don't know the exact meaning of service factor,I often see factor 1.1 and 1.0 , Could any one explain what is service factor and what do we need to pay attention to when we select factor ?
hi,buddies ,I am a chinese,In our manual there are not category to be called jet pump or turbine pump. so I don't know to understand this two kinds of pump clearly.
Do these two kinds of pumps still belong to centrifugal pumps ? or others ?
In NEMA standard normally use ODP and TEFC enclosure.
but in IEC standard we often use IP54.IP55 and so on
so who knows how to compare these two kind of standard ?
somebody told me that TEFC approximatelly equals to IP54.
Is it right ???
