

BJ, ES, MS, and YS series piping accessories for connection, expansion, and installation in fluid systems.
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 |
|---|---|---|---|---|---|
| BJ-1 | Ball Joint, 1.0MPa Displacement Absorption Joint | Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids | 1.0 MPa 220 °C | — | JIS 10K RF flanged; 1.0MPa, 220°C, 20° displacement angle, JIS 10K RF flanged |
| ES-10-100 | Sleeve Type Expansion Joint, 1.0 MPa, Max 220°C | Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids | 1.0 MPa 220°C | — | JIS 10K RF flanged; 1.0 MPa, ext: 20mm / comp: 80mm |
| ES-10-200 | Sleeve Type Expansion Joint, 1.0 MPa | Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids | 1.0 MPa 220°C | — | JIS 10K RF flanged; 1.0 MPa, JIS 10K RF flanged |
| ES-11-100 | — | Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids | 1.0 MPa 220°C | — | JIS 10K RF flanged; 2.0 MPa, ext: 20mm / comp: 80mm |
| ES-11-200 | — | Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids | 1.0 MPa 220°C | — | JIS 10K RF flanged; 2.0 MPa, ext: 40mm / comp: 160mm |
| MS-1 | Noiseless Heater for Steam | Steam | 0.05-0.7 MPa 60°C | — | JIS Rc screwed; Bronze body |
| MS-3-13 | — | Steam | 0.05-0.7 MPa 60°C | — | JIS Rc screwed; Cast stainless steel body |
| MS-4-13 | Noiseless Heater, Cast Stainless Steel | Steam | 0.1-0.7 MPa 90°C | — | JIS Rc screwed; 0.1-0.7 MPa, 90°C |
| MS-6 | Noiseless Heater 0.05-0.7 MPa | Steam | 0.05-0.7 MPa 90°C (Maximum warning sound temperature limit) | — | JIS Rc screwed; 0.05-0.7 MPa, 15A-50A |
| WP-1 | Water Hammer Arrester (Shock Killer) | Cold and hot water, City water | 1.0 MPa 90°C | — | JIS R; 15A: R 1/2 connection, 0.25 kg; 20A: R 3/4 connection, 0.30 kg; 25A: R 1 connection, 0.50 kg |
| YBF-2E | Flanged Flexible Joint | Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids | 15A-200A: 1.0 MPa | 250A: 0.5 MPa 220°C | — | SS400; JIS 10K FF flanged, 15A-250A |
| YsJacket | Insulation Jacket for Valves and Pipes, 250℃ Max | — | 250℃ | — | Glass cloth + Silicone coating, Max 250℃ |
This Yoshitake category collects ball joints, expansion-joint accessories, steam-water mixing components, and jacket equipment. The products are not interchangeable: select by the specific piping movement, heat-transfer, or mixing function and then verify operating limits and interfaces.
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.

















