HRX-OM-R026
Chapter 3 Transport and Setting Up
3.4
Piping
HRSH Series
3-26
3.4 Piping
Piping port size
Table 3-12 Piping port size
Name
Port size
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
Drain port
Rc1/4
8 to 12N
・
m
-
Facility water inlet *
1
Rc1/2
28 to 30N
･
m
1.0MPa and more.
(Supply puressure : 0.3 to
0.5MPa)
Facility water outlet *
1
Rc1/2
28 to 30N
･
m
Automatic water-fill port
Rc3/8
22 to 24N
･
m
1.0MPa more
（
Automatic water-fill pressure
0.2 to 0.5MPa
）
Overflow port
Rc3/4
28 to 30N
・
m
Inside diameter 19mm more of
piping
*1 : Water cooled type only.
*2 : For Option J [Automatic fluid filling]
【
Tips
】
<In case of HRSH
-AN-
-
、
HRSH
-WN-
-
>
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
-AF-
-
、
HRSH
-WF-
-
>
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.
Connect piping firmly. Incorrect piping might cause leakage of
supplied or drained leakage and wet surrounding area and facility.
Pay attention not to allow dust and foreign materials to enter into
water circuit etc. during connection of piping.
Hold the piping port firmly with specific wrench when tightening.
The piping should be selected with due consideraton of pressure
and temperature. Otherwise the piping can burst in service.
Do not use the materials that rust or corrode for the circulating
fluid and facility water circuits. Using the materials that tend to
rust or corrode may cause clogs or/and leakages of the circulating
fluid and facility water circuits. In case of using these kind of
materials, consider and carry out some prevention against the
rusting or corrosion by the customer side.
Do not generate a rapid change of pressure by water hammer etc.
The product and external piping might be damaged.
Facility water temperature of the facility water outlet port might
rise up to approx.60deg.C.
