Steam trap G20N

  • Suitable for condensate recovery
  • Horizontal installation
  • Automatic venting

  • Suitable for steam process lines

    The float mechanism drains the condensate immediately and at saturation temperature, preventing the condensate from accumulating on the primary side. Ideal for applications where condensate must not be allowed to build up.

  • Faster commissioning

    Discharges cold air and cold condensate automatically. The membrane capsule deaerator is controlled by the saturation temperature and prevents air and steam congestion.

  • Energy-saving design

    Achieves high sealing performance even with extremely low condensate volumes and reduces steam loss thanks to a precision-polished float and a three-point support mechanism.

  • Condensate recovery

    With its high back pressure tolerance, this model is suitable for condensate return.

Typical applications

Suitable for use in food appliances, cleaning equipment, air conditioning systems and similar applications.

Threaded sleeve

Nominal width Dimensions (mm) Weight (kg)
L H1 H2 W
1/2″ 120 24 105 82 2,5
3/4″
1″ 107 2,6

Flange

Nominal width Flange standards Dimensions (mm) Weight (kg)
L H1 H2 W
1/2″ JIS (FF, RF) 10 K, 16 K, 20 K 150 24 105 82 3,8
ASME/JPI(RF) 150lb 145 3,5
ASME/JPI(RF) 300lb 150 3,8
3/4″ JIS (FF, RF) 10 K, 16 K, 20 K 150 4,2
ASME/JPI(RF) 150lb 145 3,9
1″ JIS (FF, RF) 10 K, 16 K, 20 K 160 5,3
ASME/JPI(RF) 150lb 157 4,6
DN15 PN25 150 24 105 82 3,7
DN20 4,2
DN25 160 4,8

Specifications

Model Connection Max. Operating pressure (bar) Max. Differential pressure (bar) Max. Operating temperature (℃) Housing material
Type Nominal diameter (bar) (bar) (℃)
G20N-3 Threaded socket Rc, NPT 1/2″ 3 3 220 Spheroidal graphite cast iron FCD450
3/4″
1″
G20N-8 1/2″ 8 8
3/4″
1″
G20N-21 1/2″ 21 21
3/4″
1″
G20N-3F Flange FF, RF 1/2″ 3 3
3/4″
1″
G20N-8F 1/2″ 8 8
3/4″
1″
G20N-21F 1/2″ 21 21
3/4″
1″

● Max. permissible pressure (PMA): 21 bar. PMA is the design pressure of pressure-resistant parts (housing).
Max. permissible temperature (TMA): 220 ℃. TMA is the design temperature of pressure-resistant parts (housing).
● Min. operating differential pressure (⊿PMN): 0.1 bar. ⊿PMN is the minimum operating differential pressure between the inlet and outlet of the condensate drain.

* Available flange standards: ASME/JPI, DIN, JIS

● The diagram of the drain line shows the flow rate for condensate with a temperature of 6 ℃ (11 ℉) below the saturation temperature.

■ Associated product models for reference
Y strainer YM1
Sight glass TS1 T3
Air vent AT9N