Model Number Indication

Standard Specification
Model | 3R110-06 | 3R210-06 | 3R210-08 | 3R310-08 | 3R310-10 |
Working medium | Air (filtered by 40μm or more) | ||||
Operation mode | Hand-operated direct-acting type | ||||
Pipe caliber ① | G1/8 | G1/4 | G3/8 | ||
Effective area | 12.0mm² (Cv=0.67) | 14.0mm² (Cv=0.78) | 16.0mm² (Cv=0.89) | 25.0mm² (Cv=1.39) | 30.0mm² (Cv=1.67) |
Number of positions | Three for two | ||||
Lubrication | Not necessary. | ||||
Operating pressure range | 0~0.8MPa(0~116psi) | ||||
Guaranteed pressure | 1.5MPa(215psi) | ||||
Working temperature | -20~70 | ||||
Body material | Aluminum |
Flow Rate Characteristics

Internal Structure

NO. | Name | NO. | Name | Symbol | Name |
1 | Round head screws | 6 | Round head screws | 11 | Hexagonal Nuts |
2 | Bottom cover | 7 | Spring | 12 | Cap |
3 | Body | 8 | Stop Screws | 13 | Lock Nut |
4 | O-ring | 9 | Spring Holder | 14 | Handle |
5 | Shaft core | 10 | Balls |
External dimension drawing (mm)

Model | 3R110-06 | 3R210-06 | 3R210-08 | 3R310-08 | 3R310-10 |
A | 87 | 98 | 98 | 106.5 | 106.5 |
AB | 47.8 | 57.8 | 57.8 | 66.5 | 66.5 |
AC | 10 | 10 | 10 | 10 | 10 |
B | 18 | 22 | 22 | 27 | 27 |
C | 27 | 35 | 35 | 40 | 40 |
D | 25 | 25 | 25 | 25 | 25 |
E | M12×0.75 | M14×1.0 | M14×1.0 | M16×1.0 | M16×1.0 |
K | 3.1 | 4.3 | 4.3 | 4.3 | 4.3 |
KA | 21 | 25 | 25 | 30 | 30 |
KB | 13 | 16 | 16 | 18 | 18 |
KC | 7.7 | 8 | 8 | 10 | 10 |
L | 3.3 | 3.3 | 3.3 | 4.3 | 4.3 |
LA | 19 | 30 | 30 | 35 | 35 |
LB | 13 | 17 | 17 | 20 | 20 |
LC | 14 | 13.5 | 13.5 | 15.5 | 15.5 |
P | G1/8 | G1/8 | G1/4 | G1/4 | G3/8 |
PA | 16 | 22.5 | 22.5 | 24 | 24 |
PB | 2 | 0 | 0 | 0 | 0 |
PC | 15.5 | 17.5 | 17.5 | 21 | 21 |
PD | 24.5 | 28.5 | 28.5 | 33 | 33 |
PE | 1 | 0 | 0 | 0 | 0 |