HRX-OM-W058
Chapter 3 Transport and Setting Up
3.4 Piping HRS-R Series
3.4 Piping
Piping port size
Table 3-4 Piping port size
Recommended
tightening torque
Recommended proof
pressure for piping
Automatic water-fill port *
2
1.0MPa more
(Automatic water-fill pressure
0.2 to 0.5MPa)
Inside diameter 19mm more of
piping
1 For NPT and G thread, use a conversion connector available as an accessory separately.
2 For automatic fluid filling [Option].
Connect piping firmly. Incorrect piping might cause leakage of
supplied or drained leakage and wet surrounding area and facility.
Keep supply water pressure below 0.5MPa.
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.
Use non-corrosive material for fluid contact parts of circulating fluid.
Also, the use of corrosive materials such as aluminum or iron for fluid
contact parts, such as piping, may not only lead to clogging or leakage
in the circulating fluid but also refrigerant leakage and other
unexpected problems. Provide protection against corrosion when you
use the product.
Do not generate a rapid change of pressure by water hammer etc.
The product and external piping might be damaged.
Check the model number of this product in "1.4.1 Product Label” of
this manual before connecting piping.
Model number: HRS0-N-0
The transition connector from Rc to NPT is enclosed as an accessory.
For NPT piping, be sure to use this connector.
Model number: HRS0-F-0
The transition connector from Rc to G is enclosed as an accessory.
For G piping, be sure to use this connector.
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