AT-1S type
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A bellows type radiator trap used for heating radiators of 10 to 100 kPa, which can also be used as a pipe end trap for low pressure lines. This product meets the standard specifications for mechanical equipment construction by the Ministry of Land, Infrastructure, Transport and Tourism and various government agencies.

Major features

  • Since the structure does not allow drainage to stay, freezing can be prevented.
  • Drain and air at the beginning of ventilation are quickly discharged.

specification

Product code AT1S-F
Valve type steam trap
format Bellows type
Nominal diameter 15-25 (1/2-1)
Applicable fluid steam
Fluid temperature 120 ℃ or less
Applicable pressure 10-100kPa
Maximum continuous emissions 1900L / h
End connection Inlet: JIS R screw (union fitting), Outlet: JIS Rc screw
shape Straight type
Material body CAC406 Nickel Chrome Plating
Material Valve body C3604
Material Valve seat C3604
Material bellows C5212

Download materials

Download materials

Common to all product symbols

AT-1S Catalog

AT-1S price list

AT-1S outline drawing

AT1S-F

AT1S-F (15,20A) reference diagram

AT1S-F (25A) reference diagram

Frequently Asked Questions and Explanations

What is a drain?

In steam-related terms, it refers to steam condensed water (a state in which steam has cooled and returned to water).

What is the role of the steam trap?

When the steam cools, it returns to water (drain). If drainage accumulates in the piping and equipment, it may reduce the efficiency of the equipment and cause water hammer, so it is used for the purpose of automatically discharging the generated drainage.

What is the role of the bypass circuit in the steam trap with bypass?

The bypass function is used at the initial stage of ventilation of equipment, etc., and it is used for the purpose of discharging a large amount of air and drain to accelerate the start-up time.

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Notation on catalogs and websites

RD44N-F □

Contains characters that indicate pressure classification and options.

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