4289603 Relief Valve Excavator Main Control Valve Fitting For HITACHI EX200-2 EX200-2m

• 4289603 Relief Valve Excavator Main Control Valve Fitting For HITACHI EX200-2 EX200-2m

• Specification

• Function

1.Overpressure protection: The relief valve remains normally closed during the normal operation of the hydraulic system. When the pressure in the system, due to factors such as a sudden increase in load or a malfunction of a component, rises to the preset opening pressure of the relief valve, the valve will open. It allows the hydraulic oil to flow back to the oil tank or a low-pressure area, thereby reducing the system pressure and preventing the pressure from continuing to rise.

2.Pressure control: In addition to serving as a safety valve to prevent overpressure, the Hitachi 4289603 relief valve can also be used as a pressure control valve to maintain the pressure in the entire hydraulic system or a partial system within a specific level or range. For example, it can be used in an inlet and outlet throttling speed control circuit to relieve flow, acting as a constant pressure valve at this time; it can also generate back pressure on the return oil to improve the motion stability of the actuator, and in this case, it is often referred to as a back pressure valve.

• Compatible models

HITACHI

EX200-2 EX200-2m EX200-3 EX200-3C EX200-3E EX200-3m EX200K-2 EX200K-2m EX200K-3 EX200K-3m EX200LCK-2m EX220-2 EX220-3 ZX200-3 ZX210H-3 ZX210K-3

• Diagram parts list​

• More other valve parts fit HITACHI machinery​

• Other parts we can supply.

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.

2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.

3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.

4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.

5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.

6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

• Packaging & Delivery

Packaging Details:

1. According to orders,pack the spare parts one by one by oil paper;

2. Put them into small carton boxes one by one;

3. Put the packed small carton boxes into bigger carton boxes one by one;

4. Put the bigger carton boxes into wooden boxes if necessary especially for the shipments by sea.

5. goods is packed by oil paper and plastic bags inside

6. using wooden package.

7. we support the custom-made demand for package

Port: Huangpu

Lead Time : Within 2 days after receiving the pay me.

Shipping: Expedited Shipping(FedEx/DHL/TNT/UPS), air cargo, truck, by sea.

• Warranty

1. Warranty Period: 3 Months' warranty from the date of arrival. Longer period of 6 months' warranty could be offered with higher price level.

2. Warranty type: replacement of the parts that have quality problem.

3. Warranty is not valid for below s

* Customer give wrong information about the order

* Force Majeure

* Wrong installation and operation

* Rust because of wrong stock & maintenance

• Our Company

Anto Machinery is made up of a professinal engineering team, with high experirence in genuine, OEM and aftermarket parts.

for excavators, bulldozers, forklift, loaders, and crane covering brand Hyundai , Sany , DOOSAN , Vo-lvo , HITACHI , KOBELCO , KOMATSU , KATO , JCB , LIEBHERR , SANY , XCMG , XGMA , LIUGONG , SHANTUI , etc.

We are with full range of data information for the engine parts, hydraulic parts ,seal parts, electrical parts, gear & reducer parts, cylinder parts, bucket parts, cab parts, etc. As exporting about 20 years, we now have customers the whole world including the countries Brazil, Mexico, Colombia, Venezuela, Peru, America, Canada, Russia, Poland, Ireland, Sweden, France, England, Romania, Spain, Portugal, Ukraine, Lithuania, Norway, Italy, Finland, UAE, Saudi Arabia, Israel, Iraq, Sudan, Kenya, Tanzania, Sri Lanka, Kazakhstan, Pakistan, Burma, Thailand, Vitenam, Philippines, Indonesia, Australia, New Zealand, etc.

Thanks very much to our customers support and big trust.

We will keep improving everyday. Any of your encouragement in inquiry and order is our motivation.

We warm welcome your visiting and consulting on your needed parts.