What is the difference between 3c4 and 3c5 in the DSG series electromagnetic directional valve model?

DSG series solenoid valve parameter introduction [model description]:

S-DSG-01-2B2A-D24-C-N-50-L

S=No impact type

DSG=serial number (electromagnetic reversing valve "plate connection")

-01=nominal size (01 02 03)

-2 = number of positions (2 and 3)

B=spool valve spring installation type (C: spring centering D: no spring positioning B: spring bias C: spring centering B: spring bias)

2=spool function (2,3,4,40,6,60,8,9,10,12)

A = spring bias and neutral (A and B)

-D24=coil model (AC AC A100, A120, A200, A240. DC DCD12, D24, D100. AC (integer type) AC→DCR100, R200)

-C=manual operation type (no mark with manual push rod C: with manual locking button to choose)

-N=Electrical connection type (Nil: junction box type N: plug type (optional) N1: plug-in type with power-on indicator light (optional))

-50=design number

-L=Electromagnet anti-installation (L: electromagnet reverse assembly mark)

What is the difference between 3c4 and 3c5 in the DSG series solenoid valve?

3c2 c3 c5 engine oil belongs to the oil certified by the European standard acea engine oil certification standard. In the European standard engine oil quality grade, the engine oil is divided into four categories: abce, c, and c-type engine oil belongs to the third category. This type of engine oil is mainly used for National VI vehicles with particulate filters and three-way catalytic converters. In the C-type engine oil, it is subdivided into five different quality grades from 1 to 5, namely: C1, C2, C3, C4 and C5, with C5 being the highest and C1 being the lowest. Therefore, the difference between c2 c3 c5 engine oil is the classification of different engine oil quality grades under a large category. c5 is better than c3 is better than c2.