3R310-10 3 Port 2 Position Hand Pull Valve G3/8" Inlet Outlet

The mechanical valves usually go on with reversing through the outer forces. When the outer strenght disappear, the valve will come back the original position and exchange the direction. The stucture soloker knob and emergency push botton with lock has the memory function. However, according to the function of valves, it's split into three port and two way as well as five port 2 way. The 3/2 way usual is used to contro the output signal of pneumatic systerm and the 5/2 way can directly drive the cylinder.

Model
4R210-08                4R310-10                  3R210-10                 3R310-10
Fluid 40 micron filtered: Air
Position and way NO.
5/2 Way                                                      3/2 Way
Effective area
16mm2(CV=0.89)  30mm2(CV=1.68)  16mm2(CV=0.89)  30mm2(CV=1.68)
Port size
08:Air inlet=Air outlet=G1/4″=Exhaust=G1/8″
10:Air inlet=Air outlet=G3/8″=Exhaust=G1/8″
Operating pressure: 0 ~ 0.8MPa
Operating temperature: 0 ~ 60C

Description:
Pneumatic Foot Pedal Valve is 5 Way 2 Position, high performance.
Hand Valve is a change valve controlled by foot, with small operative force and emancipation of hands.
This kind of valve is widely applied to pneumatic system.

3R 4R hand valve , hand slide check valve

3R,4R Series hand draw valve is manual controlled. They are 2/3 and 2/5 valves. 

The advantages are: light operation force, good seal, and long working life.