Guilong manifold blocks-Schematic diagram of manifold block plunger pump suction pressure oil
Definition of hydraulic
Hydraulic lock, as the name suggests, is a "lock", is to lock the circuit in the hydraulic system, do not let the loop oil flow, as shown in the figure, to ensure that the oil cylinder in the figure can still keep its position static even if there is a certain load outside.
The specific structure of the liquid control check valve is a check valve with a liquid control port. There are seat, ball, spring, hydraulic port, control plunger, and A,B,X three ports.
Schematic diagram of hydraulic lock
Application of hydraulic lock:manifold blocks
Hydraulic lock is mainly used for static lock load, can only achieve switch action, such as: truck crane outrigger, load is relatively small and the change is relatively stable of some airport climbing car, horizontal directional drill, shear difference type climbing car, fire truck, environmental protection vehicle and other equipment. It is not suitable for the dynamic speed control of descent with heavy load and large load change (smooth start and prevent stall during descent).
Hydraulic lock installation position:
Generally speaking, the hydraulic lock should be installed between the throttle valve and the slide valve (to prevent the back pressure of the throttle valve, delaying the locking speed of the hydraulic lock), to ensure that the hydraulic lock can quickly lock the actuator, so that it stays in the position we require to stay.
Application of hydraulic lock in the system
Hydraulic locking system multi-way valve in the choice of function:
It is generally recommended that users choose the open center multi-way valve median function (Y-type median function) to reduce the impact of multi-way valve on hydraulic locking. If you must use the closed center multi-way valve (the function is O-type), it is recommended that users choose the pilot piston without o-ring hydraulic lock, can ensure that the multi-way valve is o-type closed, the pressure at both ends of the pilot piston is equal, so as to prevent the opening of the hydraulic lock.
Hydraulic plunger pump working principle, hydraulic plunger pump is how to operate
Added time: 2021-08-05
In the hydraulic system, the plunger pump is a hydraulic pump which realizes oil absorption and oil pressure by the change of the sealing volume caused by the reciprocating movement of the plunger in the cylinder.
Plunger pump structure diagram
Piston pump suction pressure oil principle DIAGRAM
The radial piston pump works basically similar to the axial piston pump, and also uses the reciprocating linear motion of the plunger to complete the oil absorption and oil pressure process (see figure).
The plunger is arranged radially in the cylinder block, and the cylinder block is driven by a motor to rotate together with the plunger, so the cylinder block is also called the rotor. During the working process, the stator and the oil distribution shaft are fixed and do not turn. When the rotor rotates in the direction shown in the figure, due to the eccentric distance f between the stator and the hand, the plunger extends outward after the upper half cycle, and the working space in the cylinder block increases. The liquid enters the working space through the oil suction hole and the oil suction port of the oil distribution shaft from the oil tank to achieve the oil absorption action. When the plunger passes through the lower half circle, the working space is reduced, and the liquid is pressed out through the oil pressure port and oil pressure hole of the oil distribution shaft. When the rotor rotates a week, each plunger reciprocating motion once, complete a suction and pressure oil process, if the rotor rotates continuously, it is continuous output pressure oil, this is the radial pump working principle.
The radial plunger pump has no oil pan and is supplied by a special oil shaft. The oil distribution shaft because of the suction port and the pressure of the oil port is uneven, a large radial force, at the same time, because of the radial size of this kind of pump, so the relative speed of motion is large, wear is also large, these are the shortcomings of the radial pump. But because the radial placement of the plunger, can put a few rows of plunger, so the relative number of axial pump plunger, flow is large, this is its advantages.
In general, compared with the plunger pump, vane pump, because the plunger is cylindrical, so the sealing surface shape is relatively simple, can reduce the fit clearance, with less oil leakage, high efficiency, high pressure resistance and other advantages.Guilong manifold blocks


Guilong manifold blocks-Hydraulic solenoid valve working principle, hydraulic solenoid valve classification
Working principle of hydraulic solenoid valve:
manifoldblocks.comHydraulic solenoid valve has closed cavity, in a different location to open a hole, each hole to connect different tubing, cavity piston is among, both sides are two electromagnets, which face the magnet coil electricity body which side will be attracted to, through to control the movement of the valve to open or close the different discharge of oil hole, and the oil hole is always open, hydraulic fluid will enter the different line of tubing, Then through the oil pressure to push the piston of the cylinder, the piston drives the piston rod, the piston rod drives the mechanical device, so that by controlling the current of the electromagnet is broken to control the mechanical movement.
Hydraulic solenoid valve classification:
Hydraulic solenoid valve refers to the hydraulic system transmission used to control the liquid pressure, flow and direction of a component. In the hydraulic solenoid valve, the pressure control valve is called pressure control valve, the flow control valve is called flow control valve, and the control on, off and flow direction is called the direction control valve. There are new classifications under these control valves. Let's take a look at other classifications.
1, the direction control valve is divided into one-way valve and reversing valve according to the purpose.
(1) one-way valve: only allow the fluid in the pipeline one-way through, reverse is cut off.
(2) reversing valve: change the on-off relationship between different pipelines, according to the number of working positions of the valve core in the valve body divided into two, three, etc.; According to the number of channels controlled by two, three, four, five, etc.; According to the spool drive mode of separation, motor, electric, hydraulic, etc.
2, the flow control valve is the use of the throttle port area between the valve core and the valve body and the local resistance generated by it to adjust the flow, so as to control the speed of the actuator. Flow control valves are divided into 5 types according to usage.
(1) throttle valve: after setting the area of the throttle port, the throttle valve can make the load pressure change little and the motion uniformity of the actuator is not high. The motion speed of the actuator is basically stable.
(2) speed control valve: when the load pressure changes, it can keep the inlet and outlet pressure difference of the throttle valve as a fixed value.
(3) shunt valve: no matter the size of the load can make the same oil source of two executive components to get the same flow for the same amount of shunt valve or synchronous valve; The proportional flow distribution valve is obtained.
(4) collecting valve: it is to make the flow into the collecting valve according to the proportion of distribution, the effect is opposite to the diverting valve.
(5) Diverting collecting valve: both the function of diverting valve and collecting valve.
3, pressure control valve can be divided into relief valve, pressure reducing valve and sequence valve according to use.
(1) relief valve: it can control the hydraulic system to maintain a constant state when the set pressure is reached. The overflow valve used for overload protection is called the safety valve. When the system fails and the pressure rises to the limit value that may cause damage, the valve port will open the overflow to ensure the safety of the system.
(2) pressure reducing valve: it can control the branch loop to get the stable pressure lower than the main loop oil pressure. Pressure reducing valve according to its control of the pressure function is different, and can be divided into constant value of pressure reducing valve, pressure reducing valve and pressure reducing valve.
(3)Sequence valve: can make an executive component action, then in order to make other executive components action.



Ningbo, China – (August 4, 2018) –Guilong manifold blocks is a leader in the hydraulic manifold industry, providing series, standard and custom designed products for functions ranging from engineering and factory automation to mobile applications.

Guilong manifold blocks hydraulic manifolds, hydraulic blocks and hydraulic valve manifolds are utilized in machines for industrial fields that include mining, quarrying, agriculture and forestry. The company also supplies products for waste and recycling, construction, and materials handling. Hydraulic subplates and cartridge valve bodies are also available.

All hydraulic systems are not the same. They’re highly complex and complicated pieces of equipment and different applications require different mechanical specifications.Guilong manifold blocks Machinery products are offered in aluminum, carbon steel, ductile iron, brass and stainless steel.

Bulk orders are welcome and all manifold blocks are manufactured by highly precise digital machines that are designed for easy maintenance that provide lower operational costs. A variety of custom solutions are available fromGuilong manifold blocks that includes hydraulic manifold blocks of steel or aluminum, distributor blocks and spool valve blocks.

The company’s manifold blocks meet CETOP, NFPF, DIN2430 and ISO4401 standards. Heavy-duty carbon steel manifolds can provide maximum pressure of 60Mpa (600bar, 8700 psi), while aluminum hydraulic manifolds can deliver a maximum pressure of 21Mpa (2100bar, 3045psi).

The subplates available at Guilong manifold blocks provide a stable and durable mounting pad to accommodate a comprehensive range of port styles for existing or replacement manifold blocks and manifolds. They’re equally applicable for completely new and custom solutions. Cartridge valve bodies are also available in heavy-duty carbon steel or an aluminum alloy.

To order, individuals will need to know the thickness of the valve block, the wall thickness of each port, and the size of the flow and pilot chamber. The professionals atGuilong manifold blocks Machinery are always available to assist clients with their needs.

The manifold blocks hydraulic blocks and hydraulic valve manifolds available at Guilong manifold blocks Machinery Co., Ltd. provides businesses with the standard and custom products they need in a multitude of industries. Prompt service, knowledgeable experts and affordability have all contributed to making Guilong manifold blocksa leader within the industry.

About Ningbo Zhenhai Guilong manifold blocks Machinery Co., Ltd.
The focus at Guilong manifold blocks Machinery is hydraulic sandwich manifolds, cartridge valve manifolds, hydraulic subplates, block cover plates, valve adaptors and custom manifolds for markets around the world. Our mission is to produce standard models with competitive prices and the finest quality. A 3D model is designed for custom manifolds and dimensions are checked and confirmed before work begins.

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Guilong manifold blocks Machinery



manifold blockSmachinery manufacturing Co., Ltd. is located in jinzhong city industrial park, Shanxi Province, located in China's largest hydraulic city - Ningbo, Zhejiang, the traffic is very convenient. Since its establishment, the company has delivered many high-quality products for the machinery industry, metallurgy, mining undertakings, and established a good reputation.
Hydraulic system includes: hydraulic cylinder, hydraulic pump, hydraulic valve, hydraulic station, electro-hydraulic push rod, etc.
Hydraulic cylinder: vehicle hydraulic cylinder, loader hydraulic cylinder, engineering hydraulic cylinder, light weight pull rod hydraulic cylinder, servo hydraulic cylinder, metallurgical equipment hydraulic cylinder, hydraulic steering gear hydraulic cylinder.,Hydraulic station: single type hydraulic station (power hydraulic station, compound hydraulic station), unit type hydraulic station (integral hydraulic station, separated hydraulic station), central hydraulic station.
Hydraulic pump products include: Hydraulic station, gear pump, gear pump (single stage, high pressure, double, triple), bulldozers dedicated gear pump, gear pump for dump truck, a gear motor, vane pump, vane pump (pin type, single stage, vehicle operation, double, twin, variable), car steering vane pump, vacuum pump, vane motor, piston pump, axial plunger pump (high pressure, swash plate, pump power units.
Hydraulic valve: (remote control, pressure control valve, relief valve, the forerunner of moving, low noise, unloading, electromagnetic), balance valve, pressure reducing valve (one-way), sequence valve (one-way), hydraulic system, pressure relays, flow control valve, throttle valve (one-way, the overflow, the superposition type), deceleration valve (check valve), flow control valve (with one-way valve, pilot operation, stroke), the needle valve Direction control valve, electromagnetic directional control valve (small current signal control), electro-hydraulic directional control valve, manual directional control valve, multi-way directional control valve, CAM operation directional control valve, hydraulic control check valve, check valve, superposition valve (01, 03, 06, 10,) high pressure superposition hydraulic valve, cartridge valve, two way cartridge valve Cartridge valve (with electromagnetic directional valve, direction, flow, overflow)
Electro-hydraulic proportion: electro-hydraulic proportional remote relief valve, electro-hydraulic proportional relief valve (pressure reduction, remote control), power amplifier, setter
Coal machine valve: control valve, one-way valve (hydraulic control, column, short column, double hydraulic control), two-way valve (one-way), emulsion pump station, globe valve (plane, ball type), safety valve, filter, liquid return break valve, single pillar, cut top pillar general valve, three use valve, special valve: Soil shovel control valve, rapid drop valve, pressure control valve, soil remover main control valve, multi directional pilot valve, limit jitter valve, manual directional valve, safety valve.
Hydraulic machine: Hydraulic hammer, oil filter, hydraulic hammer (handheld, machine operation), hydraulic pump station, oil filter, oil suction filter (magnetic, pipeline, high pressure pipe, double bobbin road), large flow oil filter (binocular), large flow line filter (high pressure, double barrel), plate type pipeline oil filter, oil filter, inversion type preloading type air wave clear (air).
Electro-hydraulic push rod: integral external type electro-hydraulic push rod, integral straight type electro-hydraulic push rod, parallel type electro-hydraulic push rod, parallel suspension type electro-hydraulic push rod, parallel base installation type electro-hydraulic push rod, separate type electro-hydraulic push rod.
Isostatic press Cold isostatic press permanent magnet press POWDER metallurgy press Magnetic field press Ndfeb radiation ring press
Electromagnet: direct wet-type electromagnet for valve and wet-type electromagnet for valve, electromagnet for washing machine, dc ball valve electromagnet, ac traction electromagnet, dc electromagnet for valve, ac electromagnet for valve, exchanges the integer wet-type electromagnet for valve, proportional electromagnet, low power electromagnetic valve, proportional control amplifier and displacement sensors.
Complete hydraulic products: Hydraulic cast iron, hydraulic system, single hydraulic pillar for gun mining, Loader, liquefacter, energy saver, diamond press, full brake hydraulic brick press, Pipe locking machine, baler, Hydraulic cast iron, six-side top press, Aluminum profile extrusion machine, Hydraulic pile press for engineering and construction, three-beam and four-column press, Self-unloading device, Distributor (double line, chip type, progressive), shearer, roadheader, mine lifting hydraulic station, design and manufacture complete sets of hydraulic system, oil filter car, Huade hydraulic valve, hydraulic slag machine. Products throughout the country more than provinces and autonomous regions, and established a perfect after-sales service system, through years of operation, won the customer praise. "To the quality of survival, reputation and development" is the basic policy of our company.

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Guilong Manifold Blocks, Ningbo, Zhejiang, China



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