The battery electrolyte should be 10-15 mm above the plate. If the liquid level is too low, the plate will be damaged early. For inspection, a transparent glass tube or plastic tube with an inner diameter of 3-5 mm can be used to vertically extend from the liquid supply hole to the battery plate, and then the tube is pulled out by blocking the upper port of the tube with a finger. The height of the liquid level in the measuring tube should be 10-15 mm. If the liquid level is not high enough, it should be distinguished from the liquid level caused by water evaporation or electrolyte leakage. If the water is evaporated, steaming water should be added; otherwise, the electrolyte should be added. The two should not be confused to avoid battery damage due to changes in electrolyte concentration.
3 Series Explosion-proof Coal Safety Proportional Multi-way Valve
The directional spool valves types HLPSL and HLPSV serve to control both, the direction of movement and the load independent, stepless velocity of the hydraulic consumers. In this way several consumers may be moved simultaneously, independently from each other at different velocity and pressure ratings, as long as the sum of the partial flows needed for this is within the total delivery supplied by the pump.
Basic data
Design Proportional directional spool valve according to the Load-Sensing principle
Versions Valve bank design
Pressure pmax 420 bar
Flow Qmax 80 (100) lpm
Psl Hydraulic Proportional Directional Control Valve,Hawe Valve Spools,Hawe Hydraulic Spool,Proportional Directional Control Valve
Jiangsu KM Hydraulic Control System Co. Ltd. , https://www.km-valves.com