control-valves
K48K
K48K control valve series for excavator hydraulic circuits
K48K is a control valve in the FLUTEK catalogue, K48K control valve series for excavator hydraulic circuits. It is supplied as a complete unit rather than as loose parts, with the control variant matched to the machine. Fitment is confirmed from the machine model and the nameplate before dispatch, and the unit ships from Guangzhou as a compatible-brand replacement.
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Compatibility — which machines this fits
This unit is published in our own FRANK English sample catalogue. Send us the machine model and nameplate - we confirm the exact variant, displacement and mounting before dispatch.
Specifications
| Pump line | K48K control valve series for excavator hydraulic circuits |
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Cross reference / interchange
Buying against a number from a dismantled machine or an old invoice? Send it to us — we map it to the correct unit.
Key features
- Published in our FRANK English sample catalogue
- Confirmed against your nameplate before dispatch
- Full spare parts support
Supply & commercial terms
Lead time, packing, freight terms, payment and warranty are confirmed per order on the quotation — ask us and you get them in writing together with the price.
Request a quotation
Model and quantity are pre-filled. Add your machine, destination port and contact details — we reply with price, lead time and shipping options.
Where these figures come from
Reference data for selection purposes. Please confirm the exact shaft, regulator and control variant with our team before ordering.
Common faults on this unit, and what to check first
The diagnosis guides below start from the symptom, list the checks in the order a workshop should work through them, and say which parts usually solve it. Full index: diagnosis guides.
Oil temperature keeps rising
Oil, filtration and the system as a whole
Over-temperature thins the oil and shortens seal life, so every function weakens.
Case drain flow above specification
Pump and pressure supply
Case drain flow shows how worn a pump or motor is without removing it.
Foam or milky hydraulic oil
Oil, filtration and the system as a whole
Foam means air, milkiness means water, and both destroy the lubrication film.
Spools stick or lock when cold
Valve and pilot control
A spool that sticks when cold, or grabs in one position, is telling you about oil cleanliness, varnish or bore damage.
Machine slow or noisy when cold
Oil, filtration and the system as a whole
In low ambient temperatures the oil is the problem, not the pump.
Machine weak when it is hot
Oil, filtration and the system as a whole
In high ambient temperatures the hydraulic system runs near its thermal limits.
Parts that usually solve them
Catalogue lines from the same families. Search the full library by part number from the parts library.