Hello everyone
We have a between bearings Union centrifugal pump in a high temperature (700deg F) high viscosity service.After shop overhaul the disaster bushing failed during startup.The bushing was fused against the seal sleeve.This disaster bush is made of bronze and has a diametral...
Hello all!
we have here a Byron Jackson two stage, between bearings, boiler feed water pump that discolours the oil upon minutes of being put in service,bearings are skf 7409BG, and the driver is a motor running on a magnetic center.Coupling is a Waldron gear type, the spool piece has axial...
Hi guys!
Can you guys explain to me what in the design of this pump is so unique that allows for the high head and flow developed ? some one mentioned it is all in the discharge diffuser exit port?
Hi Guys!
I have to reduce an impeller diameter. Should I cut both vanes and shroud or only the vanes. My thinking is only the vanes are to be reduced, maintaining impeller to cut water original clearance (Gap B).A strange school of thought has surfaced viz; that reducing the shroud eliminates...
Hello everyone,
This may seem as too basic a question but nevertheless, I am having a problem in understanding what is the difference if any, between a SEAL as opposed to a SHIELD bearing.
Friends,
Please advise!
We have here a two stage centrifugal pump, 157gpm capacity, at 995 ft head.This pump is in a water injection service supplying three streams, the flow is controlled via valves which are throttled to meet requirement.
The motor driver is 100HP.According to the pump curve...
Hi guys! Please clarify?
Here are two contradicting views on the clearances for the throat bushing in a API plan 23 environment overhung pump.
One view is the throat bushing must be installed at the bottom of the seal cavity to help isolate the seal chamber from the pump flow, close clearances...
