hello frenz
i've traced the some failure on other parts, i still wait for a drawing from the manufacturer's due to lost of original drawing. However, i tried to trace by following the direction of the circuit, from main hydraulics relay to cutter speed relay, PCB Diode, Junction Box Panel and...
maxidur is the model of the pump. actually the material used is a chromium carbide cast iron. see thread330-144660 for details.
I agree with you, the suction pressure cannot be minus. Just because there is two gauge to display suction pressure and discharge pressure, suction gauge must be noted...
bulkhandling
the pump is used at a cutter suction dredger where the suction head is varies due to elevated suction. thats why the pressure assumed to be negative (so my pessure is about -6 to -7 bar). I'll try do do the NPSHa calc and i'll comeback with the data.
no specified part no found
just the manufacturer code number 28340235 (IHC Holland)
refer to the drawing, just a simple connection from PCB to Solenoid in series, and the solenoid wasput 20m away from the diode.
Dear all
Below are list of the links to image taken for failed pumps for you to get the clear pictures for comments
1. http://tinypic.com/kf31ch.jpg - Failures on wearing plate
2. http://tinypic.com/kf32th.jpg - Location of the fails
3. http://tinypic.com/kf32x5.jpg - Cracked casing
4...
dear arunmrao and metengr,
thanks for your recommendation. in order to get the best performance, many consideration has to be made. either using 15Cr-3Mo or Nihard, both have thier own advantage and disadvantage. However, i need to consider the market price and availability for all materials...
the casing that i'll weld is completely removed from the system. so, it'll be part of my analysis. just need some exercise to do the precaution to weld the things.
itsmoked
cutter suction dredger is the most popular machine to do a dredging work for reclaimation and canalling. its a vessel!!
u can see many derdgers and system at www.ihcholland.com or other dredging company (baskulis, van oord etc.)
ok
i'll upload the image for you soonest possible
TQ
hello frenzz
after got some hint from u guys, we upgrading our pump and piping system. i'm now in process to monitor the improvement.
before this, our pump running at 1550rpm and it create a suction pressure at 6 - 7 bar at 6 bar discharge pressure. the minimum flow rate we got is about 0.8...
dear metengr
i can weld the casing but, as you said, now its time to look for replacements. gieter proposed to used Nihard grade 4. How 'bout you? any suggestion to improved my pump rather than max 5 or nihard?
hello frenzz
after got some hint from u guys, we upgrading our pump and piping system. i'm now in process to monitor the improvement.
before this, our pump running at 1550rpm and it create a suction pressure at 6 - 7 bar at 6 bar discharge pressure. the minimum flow rate we got is about 0.8...
Yes we are running a 24 V D.C. supply
the diode is built in on the PC Board as a 'distributor' from electrical source to our solenoid in hydraulics system.
could anyone advise me about advantage of using JH8.8 bolts rather than high tensile galvanized bolts? we are using it for our floating pipelines in fresh water.
Hi
Could anyone advise me in this problems in Cutter Suction Dredger type Beaver 1600 electronics devices
we faced a problems in our electronic signals from the PCB to a solenoid for hydraulics system.
our cutter speed 3 is not functioning, ive done all things in hydraulics parts and all the...
