Recent content by quadtracker

I agree, most likely if it has a balance pipe it probably plugged off, which caused a heavy axial load on the thrust bearing from the extreme hydraulic pump forces in one direction. Some balance pipes have a restricting orifice or adjustable globe or needle valve to control flow rate. Petroleum...

Normally the metal areas in the pump casing are built up by an approved welding process from the manufacturer, then those areas are machined back to original manufacturer's specs and the cutwaters are hand ground to approved form. There are pump repair companies that can and do a professional job.

Pipe expansion bends and or spring loaded pipe hangers or supports will generally accomodate thermal growth which might help with your concerns.

There is a book called Foundry Technology, written by Peter Beeley, published by Butterworth - Heinemann you may find useful.

In the future I would suggest install a spare heat exchanger and clean the other units more often. With the spare unit you can rotate the other units for cleaning. The other possibility is to replace shell and tube exchangers with plate exchangers that can be dismantled easier for cleaning...

I would consider producing enough extra finished product and off spec product into a rerun tank that could be used to recirculate, to blend with new feed stock so that a more continuous operation could be made. Increase your operation cycle and decrease your downtime. This might reduce the...

It may be false brinelling caused by vibration caused by equipment nearby sending vibration across the floor to a poorly supported pump foundation. This vibration passes to the pump and when it is shut down and others are running the bottom half of bearing gets brinelled from the weight of the...

Etching is a condition where bearing parts are subject to corrosion by moisture by the direct intrusion of water from outside. When used in high-temperature humid environments, bearings should be protected from these effects. a boiler feedwater pump may leak flashed steam from the pump seal...

Is it possible that a shock load created by water hammer from a discharge line check valve suddenly slammed shut during a second pump switch. These pumps create very high pressure and volumes at 3560 rpm. The internal rotor clearances are usually very small to produce high hydraulic pump...

I would check condition of both suction and discharge valves in the fluid end of the reciprocating pumps. Also replace leaking recycle valve. Get your pump efficiency back to normal. Replace packing in the stuffing box if necessary.

I would check the flatness of the casing halves looks like the fluid has washed out the gasket area. Improper torque sequence and value could be a factor. Improper gasket material. Gaskets must be hand fitted and cut at the very edges of the casing otherwise high pressure fluid will erode the...

In the machinery's handbook by Eric Oberg, Franklin D. Jones and others there is a large section on splines this may help you.

I have used them on big gas drive engines on recip compressors packages no issues these engines weigh over 15000 lbs over 1400 hp. The bottom of the vibracon can be machined to adjust height plus using the threads for adjustment.

I would check for rod runout problem caused by crosshead guides worn, cylinder - oval Inside diameter, piston wear, improper piston clearances to cylinder for 2nd stage problem. For 1st stage problem I would check discharge valves and second stage suction valve condition. Possible improper valve...

Many manufacturers that assemble compressor and pump skid packages are using SKF vibracon - adjustable chocks, rather than shims under the motor or engine foot. They support angular soft foot much better than stacking shims. check out SKF Vibracon on google to get full understanding.