Ductile Iron Inverted Bucket Steam Trap with Integral Strainer

SKU: TB-20

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Working Pressure


  • Excellent durability ensured by unique internal structire (hemispherical valve| etc)
  • The upper plug is made of stainless steel ensuring excellent wear resistance
  • Reilaible performance due to all stainless steel internal parts
  • Super energy saving since intermittent operation removes air adiabatic wall in the heat excahnger & increases heat efficiency considerably
  • Made by Yoshitake Japan
Application Steam Condensate
Type Inverted Bucket
Pressure 0.1 to 16 Bar (varies for each model)
Temperature 0°C to 220°C
Connection BSPT (ISO 7.1)
Body Ductile cast iron
Valve Stainless Steel (Heat treated)
Valve Seat Stainless Steel (Heat treated)

Discharge Capacity Chart

TB-20 Inverted Bucket Steam Trap Discharge Graph

A) 0.1 to 3 Bar B) 2 to 6 Bar C) 3 to 10 Bar D) 6 to 16 Bar


Inverted Bucket Steam Trap with Integral Strainer

DN d L H H1 A Kg
15 1/2" Rc 136 183 94 117 4.3
20 3/4" Rc 136 183 94 117 4.3
25 1" Rc 136 183 94 117 4.3

All dimensions in mm unless shown otherwise. 

Inverted Bucket Steam Trap with Integral Strainer

Number Part Material Grade QTY
1 Body Ductile Iron FCD450 1
2 Cover Ductile Iron FCD450 1
3 Bucket Stainless Steel SUS304 1
4 Valve Stainless Steel SUS420J2 1
5 Valve Seat Stainless Steel SUS420J2 1
6 Lever Stainless Steel SUS304 1
7 Lever Holder Stainless Steel SUS304 1
8 Spindle Stainless Steel SUS304 1
9 Screen Stainless Steel SUS304 1
10 Gasket Graphite Graphite 1
11 Plug Stainless Steel SUS304 1
12 Plug Malleable Cast Iron FCMB310 1
13 Bolts Carbon Steel SCM435 6
14 Spacer Carbon Steel SPCC 1
15 Pipe Stainless Steel SUS304 1
16 E Ring Stainless Steel SUS304 1
18 Plate Aluminium A1050 1

Size 1/2" to 1" BSPT
Body Ductile Iron
Pressure Range 0 to 16 BAR
Temperature 0 to 220°C

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