6745-71-4330 Excavator Relief Valve For Komatsu PC300-8 PC350-8

Description :

Packaging & Delivery

Valve Information:

The excavator relief valve is an integral part of the hydraulic system of the excavator. It can protect the hydraulic system and hydraulic components from damage, and can also control the speed and strength of the hydraulic cylinder to achieve more precise operation. The role of the excavator relief valve is to control the pressure and flow of the hydraulic system to protect the hydraulic system and hydraulic components from damage caused by excessive pressure and flow. When the pressure of the hydraulic system reaches the set value, the overflow valve will open, and the excess hydraulic oil will flow back to the oil tank to maintain the stability of the hydraulic system. In addition, the relief valve can also be used to control the speed of the hydraulic cylinder.
 

Guangzhou XIEBAGN MACHINERY CO., LIMTED

specialized in:

couplings, rubber mounts, gera parts, hydraulic seals and seal kits for hydraulic hammers, rock breakers, hydraulic excavators,wheel loaders, and JCB badkhoe loaders.

And, Our company also supply:

Engine parts, hydraulic piston pump and hydraulic travel motor, Swing motor assembly and hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cylinder, chisel, through bolt, side bolt, top bush, front head bushing,accumlator, valve, etc.

We always try our best for all our customers and make it better and better. Welcome!

Our Main Products:

Seal Series:
arm cylinder seal kit, Boom cylinder seal kit, Bucket cylinder seal kit, main pump seal kit, travel motor seal kit,
swing motor seal kit, control valve seal kit, center joint seal kit, track adjust seal kit, bushings,
floating seals, o-ring box, pusher, etc.

Engine parts:
cylinder heads, cylinder blocks, crankshafts, camshafts, connecting rods, water pumps, turbo chargers,
engine assys, fan blades, main bearing and connecting rod bearings, pistons, piston rings, liner kits, etc.

Hydraulic parts:
hydraulic cylinder assembly, gear pump assembly, hydraulic pump assembly, travel motor assembly, final drive assembly, swing motor assembly,
main valve assembly, service valves, gasket kits, etc.

Electric Parts:
solenoid valves, water sensors, pressure sensors, throttle motors, stop solenoid, controllers, monitors, etc.

Other Parts:
seal kits, bushings, floating seals, o-ring box, pushers, couplings, engine cushions, bearings, gears, fuel filter
oil filter, air filter, track link assy, front idler, carrier roller, hydraulic oil cooler, water tank, track link assy, etc.

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FAQ:

Q: What is the difference between relief valve and pressure valve?
A:In the most basic terms, the difference is that pressure control valves are the first line of defence and is therefore used for primary safety, while pressure relief valves are used as a last resort backup since they are used to maintain a pre-set downstream pressure.

Q:What is the function of relief valve in diesel engine?

A: Main purpose is to lift when over pressure occurs in the combustion area; the resultant combustion gas being expelled to a through a flang-ed pipe to deck.

Q:What is the purpose of a relief valve in a hydraulic system?
A: Relief valves are the most common type of valve found in a hydraulic system. Their purpose is to prevent high pressure in the hydraulic circuit from damaging the system components. Relief valves are normally closed; whenever one is open, it is converting the pressure energy of the hydraulic system directly to heat.