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Liquid pressure pump LA series
Product introduction
Liquid pressure pump has a wide range of applications, which can be filled with water, oil and chemical media. It is widely used in pressure test, blasting, high pressure injection and other fields. It is driven by 3-8bar compressed air, with adjustable output pressure and automatic pressure maintenance and pressure supplement.
Working principle
The liquid pressure pump works like a pressure booster, applying a very low pressure to a large diameter air driven piston. When this pressure acts on a small area of the piston, a high pressure is generated. Through a two five ventilation control reversing valve, the booster pump can achieve continuous operation. The high pressure plunger controlled by the check valve constantly discharge the liquid, and the outlet pressure of the booster pump is related to the air driving pressure. When the pressure between the driving part and the output liquid part reaches a balance, the booster pump will stop running and no longer consume air. , output hydraulic pressure = booster ratio × driving pressure. The outlet pressure can be set through a simple gas pressure reducing valve.
When the outlet pressure rises, the pump will slow down and produce a certain resistance to the differential piston. When the force is balanced, the pump will automatically stop running. When the outlet pressure decreases or the driving pressure increases, the pump will automatically start operation.
Classification of liquid pressure pumps
LA series liquid pressure pump drive piston diameter of 80mm (MINI type, smaller size)
LB, LBD series liquid pressure pump driving piston diameter of 125mm (strong industry)
LC,LCD series liquid pressure pump driving piston diameter 160mm (commonly used series)
LA series liquid pressure pump
LA series drive cylinder diameter of 80mm, specifically LA 04, LA 10, LA 16, LA 30, LA 44, LA 64, LA 100, LA 170 liquid pressure pump, specific parameters are as follows:
LA series liquid pressure pump adopts built-in single gas control two-position four-way valve to realize the automatic reciprocating movement of the pump. This series of products are designed and manufactured in accordance with our standards after our company has digested and absorbed the same type of foreign products. Gas drive part of all aluminum alloy and oxidation treatment, pump head according to the medium can choose carbon steel or stainless steel.
The driving piston diameter of this series of liquid pressure pump products is 80mm, the use of air pressure ≤8bar. This series of pumps has the following characteristics:
Light weight, easy to carry ◆ large flow, wide range of pressure ◆ easy to control, manual control to automatic control can be realized ◆ suitable for most of the liquid ◆ no electricity can be used for dangerous occasions ◆ easy to maintain
| Model | Pressure ratio | Max Outlet pressure | Flow L/min | Interface size | Net weight Kg | |||
| bar | psi | Driving port | entrance | exit | ||||
| LA04 | 4:1 | 32 | 464 | 15.36 | G3/8 | NPT 1 | NPT 1/2 | 4.8 |
| LA10 | 10:1 | 80 | 1160 | 7.15 | G3/8 | NPT 3/4 | NPT 1/2 | 4.3 |
| LA16 | 16:1 | 128 | 1856 | 4.59 | G3/8 | NPT 1/2 | NPT 1/2 | 4.2 |
| LA30 | 30:1 | 240 | 3480 | 2.53 | G3/8 | NPT 1/2 | NPT 3/8 | 4.2 |
| LA44 | 44:1 | 352 | 5104 | 1.41 | G3/8 | NPT 3/8 | NPT 3/8 | 4.1 |
| LA64 | 64:1 | 512 | 7424 | 0.95 | G3/8 | NPT 3/8 | NPT 3/8 | 4.1 |
| LA100 | 100:1 | 800 | 11600 | 0.64 | G3/8 | NPT 3/8 | NPT 3/8 | 4.1 |
| LA170 | 170:1 | 1360 | 19720 | 0.37 | G3/8 | NPT 3/8 | M14*1.5 | 4.1 |
| LA series booster pump maximum output pressure = boost ratio * Driving pressure Example LA30 booster ratio 30:1, driving pressure 5bar, outlet pressure =30*5=150bar | ||||||||
* Boost ratio is driving piston area/hydraulic plunger area
* Outlet pressure is the static outlet pressure (estimated and maximum allowed) when the air drive pressure is 8bar(116psi).
* Flow rate is the approximate flow rate of the liquid pump at an air drive pressure of 6bar(87psi) and an outlet pressure of 0
* The minimum driving pressure required for liquid pump operation is 3bar(43.5psi), up to a certain output pressure based on a specific pressure ratio
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