XNJ Series Tank Mounted Suction Filter
Product Overview
XNJ Series Tank Mounted Suction Filter is a high-performance tank-top installed FILTER, acting as the primary protection component for the hydraulic system of industrial Machine. Mounted on the top cover of hydraulic oil tank, the filter cartridge is fully submerged inside the tank. It captures solid contaminants in hydraulic oil before fluid enters the hydraulic pump, protecting precision hydraulic components and extending the service life of the whole Machine.
This FILTER is equipped with built-in bypass valve and optional clogging transmitter. When the filter element accumulates dirt and vacuum pressure reaches the preset value, the transmitter sends out electric warning signal. If maintenance cannot be carried out immediately, the bypass valve will open automatically to avoid pump cavitation and guarantee continuous running of the hydraulic system. A wide range of flow specifications are available to match different hydraulic power stations and industrial Machine.
Technical Specifications
- Model: XNJ Series Tank Mounted Suction FILTER
- Mounting: Tank top flange installation
- Rated Flow: 25 ~ 1000 L/min optional
- Filtration Accuracy: 80μm, 100μm, 180μm
- Bypass Valve Opening Vacuum: -0.02 MPa
- Clogging Signal Vacuum: -0.018 MPa
- Working Medium: Anti-wear hydraulic mineral oil, phosphate ester fluid, water-glycol
- Operating Temperature: -10℃ ~ +100℃
- Feature: Built-in bypass valve, optional electric clogging alarm, easy cartridge replacement, compact layout
- Application: Pump inlet coarse filtration for hydraulic system of industrial Machine
Working Principle
When the Machine starts up, the hydraulic pump draws hydraulic oil from the tank. Oil flows into XNJ suction FILTER, solid impurities like metal chips, dust and rubber debris are trapped by the filter element. Clean hydraulic oil flows into the pump inlet.
As contaminants accumulate, the vacuum degree rises. When vacuum reaches -0.018MPa, the clogging transmitter triggers an electrical alert to remind maintenance. If the Machine cannot stop immediately, the built-in bypass valve opens at -0.02MPa, allowing oil to bypass the filter temporarily, preventing pump empty suction and cavitation to keep the hydraulic system operating steadily.
Core Advantages
1. Flange tank-top mounting design simplifies pipeline arrangement of the hydraulic system, saves installation space and makes the structure of the Machine more compact.
2. Dual protection with clogging signal and bypass valve, effectively prevents hydraulic pump damage, greatly improving reliability of the hydraulic system.
3. Convenient maintenance: only remove flange bolts and lift the assembly to replace the filter cartridge, no need to drain all hydraulic oil, cutting downtime for the Machine.
4. Large dirt holding capacity and low initial pressure loss, will not restrict oil supply for hydraulic pump.
5. Complete flow options, strong versatility, ideal spare part for hydraulic system manufacturers and maintenance distributors.
Application Range
This FILTER is widely applied in the hydraulic system of hydraulic power packs, machine tools, metallurgical machinery, plastic machinery, construction machinery and other industrial Machine. It serves as suction-side coarse filtration for hydraulic pump protection, suitable for new equipment assembly and routine maintenance replacement.