

TS series thermostatic steam traps selected by discharge temperature and subcooling requirements.
Compare only the points that determine the choice: function or construction, applicable medium, operating range, body material, and connection or nominal size. Open the model page to confirm the full specification.
| Model | Key selection point | Medium | Operating range | Body material | Connection / size |
|---|---|---|---|---|---|
| TS-1A | Thermostatic Radiator Trap, 100 kPa | Steam condensate | 100 kPa 120°C | Bronze | JIS R screwed (union joint); Angle type radiator trap, 100 kPa |
| TS-1S | Thermostatic Steam Trap - Bellows Type Radiator Trap | Steam condensate | 100 kPa (200 kPa available for 25A) 120°C | Bronze | Straight type |
| TS-1HA | Thermostatic Radiator Trap, 200 kPa | Steam condensate | 200 kPa (TS-1HA/TS-1HS) 120°C | Bronze | Inlet: JIS R screwed (union joint), Outlet: JIS Rc screwed; Angle type, 25A, 200 kPa maximum pressure |
| TS-1HS | Radiator Trap, 200 kPa, Straight Type | Steam condensate | 200 kPa 120°C | Bronze | Inlet: JIS R screwed (union joint), Outlet: JIS Rc screwed; Straight type, 25A, 200 kPa |
| TS-3A | Bellows Thermostatic Radiator Trap (0.2 MPa) | Steam condensate | 0.01 - 0.2 MPa 135°C | Bronze (CAC406) | Inlet: JIS R screwed (union) / Outlet: JIS Rc screwed; Angle type radiator trap, 15A-20A |
| TS-3S | Bellows Thermostatic Radiator Trap | Steam condensate | 0.01-0.2 MPa 135°C | — | Inlet: JIS R screwed (union joint) / Outlet: JIS Rc screwed; 15A: Nominal size 15A (1/2), 0.5 kg; 20A: Nominal size 20A (3/4), 0.7 kg |
| TS-4A | Thermostatic Radiator Trap (0.35 MPa) | Steam condensate | 0.02-0.35 MPa 150°C | Bronze | Inlet: JIS R screwed (union joint) / Outlet: JIS Rc screwed; Angle type radiator trap |
| TS-4S | Thermostatic Steam Trap | Steam condensate | 0.02-0.35 MPa 150℃ | Bronze | Inlet: JIS R screwed (union joint), Outlet: JIS Rc screwed; Straight type |
| TS-5BP | Thermostatic Steam Trap with Blow Valve | Steam, Steam condensate | 1.0 MPa 185°C | Stainless steel | JIS Rc, NPT; -5: 5°C below saturated steam temperature; -15: 15°C below saturated steam temperature; -25: 25°C below saturated steam temperature |
| TS-5S | Thermostatic Steam Trap | Steam, Steam condensate | 2.1 MPa 220℃ | Stainless steel | JIS Rc, NPT; -15: Operates 15℃ below saturated steam temperature; -5: Operates 5℃ below saturated steam temperature; -25: Operates 25℃ below saturated steam temperature |
| TS-5V | Thermostatic Steam Trap, Stainless Steel | — | 2.1 MPa (TS-5V, TS-5S) / 1.0 MPa (TS-5BP) 220°C (TS-5V, TS-5S) / 185°C (TS-5BP) | — | JIS Rc, NPT; Standard model, 8A-25A, Max 2.1 MPa, 220°C |
| TS-5-5 | — | — | 2.1 MPa (TS-5V, TS-5S) / 1.0 MPa (TS-5BP) 220°C (TS-5V, TS-5S) / 185°C (TS-5BP) | — | JIS Rc, NPT; Operates 5°C below saturated steam temperature |
| TS-5-15 | — | — | 2.1 MPa (TS-5V, TS-5S) / 1.0 MPa (TS-5BP) 220°C (TS-5V, TS-5S) / 185°C (TS-5BP) | — | JIS Rc, NPT; Operates 15°C below saturated steam temperature (Standard) |
| TS-5-25 | — | — | 2.1 MPa (TS-5V, TS-5S) / 1.0 MPa (TS-5BP) 220°C (TS-5V, TS-5S) / 185°C (TS-5BP) | — | JIS Rc, NPT; Operates 25°C below saturated steam temperature |
| TS-7 | Thermostatic By-Pass Steam Trap, 1.0 MPa | Steam condensate | 1.0 MPa 183°C | Ductile cast iron | JIS Rc screwed; JIS Rc screwed connection |
| TS-8 | Thermostatic By-Pass Steam Trap | Steam condensate | 1.0 MPa 183°C | Ductile cast iron | JIS 10K FF flanged; JIS 10K FF Flanged |
Yoshitake thermostatic steam traps use temperature-responsive elements to discharge air and condensate. The local models span low-pressure threaded units, stainless-steel high-pressure designs, and bypass-equipped traps. Choose by condensate subcooling tolerance, operating pressure, start-up air removal, back pressure, connection, and process sensitivity to retained condensate.
This guide groups local Yoshitake catalogue pages for preliminary engineering review. The model-specific Yoshitake documentation, sizing calculation, materials confirmation, and applicable site requirements control the final order and installation decision.
Open a model page for specifications, connection options and technical documents.

























