Safety Valve Excavator Hydraulic Pump Parts Main Overflow Valve PC120-6

Product Parameters

Principle of main relief valve

The main relief valve is a type of safety valve that regulates the pressure in a hydraulic system. The principle of operation is simple: when the pressure in the system exceeds a predetermined value, the valve opens, allowing excess fluid to flow out of the system and back to the reservoir. This prevents damage to the system components and ensures safe operation.

The main relief valve typically consists of a valve body, a spring, and a diaphragm or poppet. The spring provides a pre-set force that holds the valve closed until the pressure in the system exceeds a certain level. When this happens, the force of the fluid acting on the diaphragm or poppet overcomes the spring force, and the valve opens.

Once the valve has opened, any excess fluid flows out of the system and back to the reservoir. As the pressure in the system falls below the set value, the force of the spring overcomes the hydraulic force, and the valve closes again.

Our main products: steel cover locks, filters, oil grids, pumps, cylinder heads, crankshafts, camshafts, connecting rods,connecting rod bearings, valves, plungers, nozzles, exhaust valves, engine assemblies, Inlet pump, fan blade, engine, intake valve, main bearing, crankshaft bearing, nozzle, nozzle pipe, oil pump, piston, piston pin, piston ring, plunger, valve seat, thrust bearing, valve guide, valve seat , valve seals, complete set of gaskets, water pump, turbocharger, generator,starter, sensor......

FAQ

1: When will ship my order ?Once we get confirmation of payment, we will try the best to ship order within 24 hours

2: How long to prepared the goods?

We have many stock for each iterm. so dont woride .we have enought stock for u

3: Which shipment you can supply?

By sea, by air or by express (DHL, FEDEX ,TNT,UPS,EMS)

4. How long does it take to clients address ?

The normal delivery time is 4-5 days .depending one which country u are in

5. How can i know my order it already shipping ?

When the goods shipping , i will email u for tracking number for goods. if by sea or by air , i can offer bill of lading to u

6. If i was not satisfied with the products, can i return goods ?

Yes . we offer exchanged and repair serve in the warranty time . please contact us before u return

Guangzhou Wanxinlong Construction Machinery Parts Co., Ltd. is a company specializing in construction machinery accessories. Our main business is construction machinery travel motors, slewing motors, slewing bearings, main pumps, travel/slewing gearboxes, radiators, oil coolers, turbochargers Compressors, hydraulic cylinders, displays, controllers, wiring harnesses, crankshafts, cylinder heads, cylinder blocks, throttle motors, solenoid valves, safety valves, switches, sensors, pump components, gearbox components, engine components, chassis components, mufflers, etc. Accessories. With years of industry experience and technical strength, we are able to provide customers with high-quality and diversified products and services.

Our customers are loed in Asia, Africa, America, Europe, Southeast Asia and other countries. We have been committed to providing customers with high-quality products and services, and have won wide acclaim and trust. We always adhere to the business philosophy of "customer first, quality first, honest management, and common development" to meet the needs of customers as our goal, constantly innovate and improve, and continuously improve the quality and level of products and services.

We have a professional sales and technical team that can provide customers with professional, timely and thoughtful pre-sales and after-sales services to help customers solve various problems and difficulties. We focus on establishing long-term cooperative relationships with our customers to achieve the goal of common development and win-win results.

If you need construction machinery parts, please contact us, we will serve you wholeheartedly!