SMC Networks HRSH150-A*-20 Series, Operation Manual

Page: 42 / 178

HRX-OM-Q026-B
Chapter 3 Transport and Setting Up
3.4
Piping HRSH Series
3-24
3.4 Piping
„ Piping port size
Table 3-10 Piping port size
Name Port size
 1
Recommended
tightening torque
Recommended piping
specification
Circulating fluid supply Rc1 36 to 38N
･
m 1.0MPa and more
Circulating fluid return Rc1 36 to 38N ･ m 1.0MPa and more
Automatic fluid-fill port Rc3/8 28 to 30N
･
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
Tank drain port Rc3/4 28 to 30N
・
m ID 19mm and more
【
Tips
】
<In case of HRSH
∗∗∗
-
∗
N-
∗
>
A set of thread adapters that converts the connections from Rc to NPT is
enclosed as an accessory. Be sure to use this for NPT piping.
<In case of HRSH
∗∗∗
-
∗
F-
∗
>
A set of thread adapters that converts the connections from Rc to G is
enclosed as an accessory. Be sure to use this for G piping.
z Connect piping firmly. Incorrect piping might cause leakage of
supplied or drained leakage and wet surrounding area and facility.
z Pay attention not to allow dust and foreign materials to enter into
water circuit etc. during connection of piping.
z Hold the piping port firmly with specific wrench when tightening.
z The piping should be selected with due consideraton of pressure
and temperature. Otherwise the piping can burst in service.