Miyawaki
Miyawaki AT51 Air Vents for Steam
Manufacturer: MIYAWAKI Inc.
Model: AT51
Features
Quick startup
Swiftly discharges the initial cold condensate and air.
Superb durability
The MIYAWAKI SCCV (Self Closing and Centering Valve) System increases durability by ensuring soft closing during operation. The system includes a free-rotating valve that centers and aligns itself with the condensate flow, which allows it to fit perfectly in the valve seat, even under extreme high-pressure conditions. As a result, it minimizes wear and erosion of the valve components, offering enhanced longevity and performance.
Accurate operation in high pressure and high temperature ranges, and in the presence of superheated steam.
Easy maintenance
Internal components being grouped into units make it maintenance easy.
Typical applications
Suitable for steam main lines, trace lines, and other such applications.
Dimensions/Weight
Screwed / Socket Weld
| Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||
| L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
| 1/2” | 130 | 155 | 25 | 100 | 5.1 | 6.1 | 1.0 | 3.9 | 5,7 | 12.6 |
| 3/4” | ||||||||||
| 1” | ||||||||||
Flanged
| Size | Flange standards | Dimensions (mm) | Dimensions (in) | Weight | ||||||||
| L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |||
| 1/2” | JIS (RF) |
20K | 200 | 155 | 25 | 100 | 7.9 | 6.1 | 1.0 | 3.9 | 7,3 | 16.1 |
| 30K | 8,4 | 18.5 | ||||||||||
| 40K | 8,7 | 19.2 | ||||||||||
| 63K | 220 | 8.7 | 9,6 | 21.2 | ||||||||
| ASME/JPI (RF) |
150lb | 200 | 7.9 | 6,7 | 14.8 | |||||||
| 300lb | 7,2 | 15.9 | ||||||||||
| 600lb | 7,3 | 16.1 | ||||||||||
| 900lb | 220 | 8.7 | 9,6 | 21.2 | ||||||||
| 3/4” | JIS (RF) |
20K | 210 | 8.3 | 7,7 | 17.0 | ||||||
| 30K | 8,9 | 19.6 | ||||||||||
| 40K | 9,2 | 20.3 | ||||||||||
| 63K | 230 | 9.1 | 11,1 | 24.5 | ||||||||
| ASME/JPI (RF) |
150lb | 210 | 8.3 | 7,7 | 17.0 | |||||||
| 300lb | 8,2 | 18.1 | ||||||||||
| 600lb | 8,5 | 18.7 | ||||||||||
| 900lb | 230 | 9.1 | 10,9 | 24.0 | ||||||||
| 1” | JIS (RF) |
20K | 240 | 9.5 | 9,2 | 20.3 | ||||||
| 30K | 10,1 | 22.3 | ||||||||||
| 40K | 10,5 | 23.2 | ||||||||||
| 63K | 12,1 | 26.7 | ||||||||||
| ASME/JPI (RF) |
150lb | 8,3 | 18.3 | |||||||||
| 300lb | 9,4 | 20.7 | ||||||||||
| 600lb | 9,6 | 21.2 | ||||||||||
| 900lb | 13,3 | 29.3 | ||||||||||
| Size | Flange standards | Dimensions (mm) | Dimensions (in) | Weight | ||||||||
| L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |||
| DN15 | DIN PN63/PN100 | 210 | 155 | 25 | 100 | 8.3 | 6.1 | 1.0 | 3.9 | 9,4 | 20.7 | |
| DN20 | 230 | 9.1 | 11,4 | 25.1 | ||||||||
| DN25 | 12,1 | 26.7 | ||||||||||
*You can easily manufacture with custom face-to-face dimensions for flanged connections by adjusting the design and production process. This approach allows for greater flexibility and ensures that specific project requirements are met efficiently.
*Please do not hesitate to inquire about the face-to-face dimensions that can be manufactured.
Specifications
| Model | Connection | Max. operating pressure | Max. operating pressure differential | Max. operating temperature | Controlled temperature range | Standard set temperature | Body material | ||||||
| Type | Size | (MPa) | (psig) | (MPa) | (psig) | TMO
(℃) |
TMO
(℉) |
(℃) | (℉) | (℃) | (℉) | ||
| TB51-45 | Screwed Rc,NPT |
1/2” | 4,5 | 652.5 | 4,5 | 652.5 | 425 | 797 | 100 – 220 | 212 – 428 | 180 (at 2,1MPa) |
356 (at 304.5psig) |
Forged steel A105 |
| 3/4” | |||||||||||||
| 1” | |||||||||||||
| TB51-65 | 1/2” | 6,5 | 942.5 | 6,5 | 942.5 | 100 – 240 | 212 – 464 | 220 (at 4,4MPa) |
428 (at 638psig) |
||||
| 3/4” | |||||||||||||
| 1” | |||||||||||||
| TB51F-45 | Flanged RF |
1/2” | 4,5 | 652.5 | 4,5 | 652.5 | 100 – 220 | 212 – 428 | 180 (at 2,1MPa) |
356 (at 304.5psig) |
|||
| 3/4” | |||||||||||||
| 1” | |||||||||||||
| TB51F-65 | 1/2” | 6,5 | 942.5 | 6,5 | 942.5 | 100 – 240 | 212 – 464 | 220 (at 4,4MPa) |
428 (at 638psig) |
||||
| 3/4” | |||||||||||||
| 1” | |||||||||||||
| TB51W-45 | Socket Weld
SW
|
1/2” | 4,5 | 652.5 | 4,5 | 652.5 | 100 – 220 | 212 – 428 | 180
(at 2,1MPa) |
356 (at 304.5psig) |
|||
| 3/4” | |||||||||||||
| 1” | |||||||||||||
| TB51W-65 | 1/2” | 6,5 | 942.5 | 6,5 | 942.5 | 100 – 240 | 212 – 464 | 220
(at 4,4MPa) |
428 (at 638psig) |
||||
| 3/4” | |||||||||||||
| 1” | |||||||||||||
*It is possible to change the factory default set temperature. Specify the operating pressure and set temperature.
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