SMC Networks HRS090-A, Operation Manual

Page: 47 / 196

HRX-OM-S004
Chapter 3 Transport and Setting Up
HRS Series
3.4
Piping
3-27
z Connect piping firmly. Incorrect piping might cause leakage of
supplied or drained fluid and wet surrounding area and facility.
z Use caution not to allow dust and foreign matter to enter the water
circuit, etc. during connection of piping.
z Securely connect the piping at the piping port with specific wrench
when tightening.
z Incorrect piping can burst in service.
z Use non-corrosive material for fluid contact parts of circulating
fluid and/or facility water. Using the materials that tend to rust or
corrode may cause clogging or/and leakages of the circulating
fluid and facility water circuits. In case of using these kinds of
materials, consider and carry out some prevention against the
rusting or corrosion by the customer side.
z Do not generate a rapid change of pressure by water hammer, etc.
Internal parts of the product and/or the piping may be damaged.
z
Facility water temperature of the facility water outlet port might
rise up to approx.60deg.C.
3.4 Piping
„ Piping port size
Table 3-12 Piping port size
Name Port size
∗
1
Recommended
tightening torque
Recommended piping
specification
Circulating fluid outlet port Rc3/4 28 to 30N
･
m 1.0MPa and more
Circulating fluid return
port
Rc3/4 28 to 30N
･
m 1.0MPa and more
Facility water inlet port*1 Rc3/4
28 to 30N ･ m
Facility water outlet port*1 Rc3/4 28 to 30N
･
m
1.0MPa and more.
(Supply puressure : 0.3 to
0.5MPa)
Automatic fluid fill port Rc1/2 20 to 25N
･
m
1.0MPa and more
（
Automatic fluid -fill pressure :
0.2 to 0.5MPa
）
Overflow port Rc1 36 to 38N ・ m
ID25mm and more
Length 5m and less
Pump drain port Rc1/4 8 to 12N
・
m ---
∗ 1 : Water cooled type only.
[Tips]
<For HRS ∗∗∗ -AN- ∗ and HRS ∗∗∗ -WN- ∗ >
A set of thread adapters that converts the connections from Rc to NPT is
enclosed as an accessory. For NPT thread, be sure to use this adapter.
<For HRS
∗∗∗
-AF-
∗
and HRS
∗∗∗
-WF-
∗
>
A set of thread adapters that converts the connections from Rc to G is
enclosed as an accessory. For G thread, be sure to use this adapter.