Miyawaki
Miyawaki SC31 Thermodynamic Disc Steam Traps
Manufacturer: MIYAWAKI Inc.
Model: SC31
Features
Compact and cost effective design
It has a space saving, simple mechanism with very few moving components.
Easy maintenance
The minimum of moving parts and an easy in-line access ensures easy and fast maintenance.
Special design against steam locking
To avoid cases of steam locking, Miyawaki offers special models to handle steam locking.
Flexible installation
This product can be installed either horizontally or vertically.
Superb durability
The body of the product is made from stainless steel, making it durable and corrosion-resistant, even in aggressive media.
Auto blow off and air vent
Thanks to a bimetal ring, the trap smoothly discharges initial air and cold condensate. (Auto blow-off mechanism)
Tailored design
Manufacturing with custom face-to-face dimensions is possible.
Typical applications
Suitable for F&B devices, cleaning devices, steam main lines, small heat exchangers, and other such applications.
Dimensions/Weight
Screwed
| Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||
| L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
| 1/2” | 78 | 55 | 59 | 61 | 3.1 | 2.2 | 2.3 | 2.4 | 1,0 | 2.2 |
| 3/4” | 90 | 61 | 3.5 | 2.4 | 1,3 | 2.9 | ||||
| 1” | 95 | 3.7 | 1,2 | 2.6 | ||||||
*Please contact MIYAWAKI for further information.
Flanged
| Connections | Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||
| L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | ||
| JIS, ASME | 1/2” | 143 | 61 | 59 | 61 | 5.6 | 2.4 | 2.3 | 2.4 | 2,7 | 6.0 |
| 3/4” | 155 | 6.1 | 3,9 | 8.6 | |||||||
| 1” | 175 | 6.9 | 4,7 | 10.4 | |||||||
| 1 1/4″ | 185 | 7.3 | Table 1 | ||||||||
| 1 1/2″ | |||||||||||
| 2″ | 195 | 7.7 | |||||||||
| DIN | DN15 | 150 | 61 | 59 | 61 | 5.9 | 2.4 | 2.3 | 2.4 | 2,7 | 6.0 |
| DN20 | 3,9 | 8.6 | |||||||||
| DN25 | 160 | 6.3 | 4,7 | 10.4 | |||||||
*Customized face-to-face dimensions on request.
Table 1
| Size | ASME 150lb | ASME 300 | ||
| kg | lb | kg | lb | |
| 1/2” | 2,3 | 5.1 | 2,7 | 6.0 |
| 3/4” | 2,9 | 6.4 | 3,9 | 8.6 |
| 1” | 3,6 | 7.9 | 4,7 | 10.4 |
| 1 1/4″ | 4,2 | 9.3 | 5,5 | 12.1 |
| 1 1/2″ | 5,0 | 11.0 | 7,3 | 16.1 |
| 2″ | 6,6 | 14.6 | 8,2 | 18.1 |
Specifications
|
Model |
Connection | Max. operating pressure | Max. operating pressure differential | Max. operating temperature | Body material | ||||
| Type | Size | PMO (MPa) | PMO (psig) | (MPa) | (psig) | TMO (℃) |
TMO (℉) |
||
| SC31 | Screwed Rc, Rp, NPT |
1/2” | 2,1 | 305 | 2,1 | 305 | 220 | 428 |
Stainless steel |
| 3/4” | |||||||||
| 1” | |||||||||
| SC31F | Flanged JIS, ASME |
1/2″ | Stainless steel SCS14+SUSF304 |
||||||
| 3/4″ | |||||||||
| 1″ | |||||||||
| 1 1/4″ |
Stainless steel |
||||||||
| 1 1/2″ | |||||||||
| 2″ | |||||||||
| Flanged DIN |
DN15 | Stainless steel SCS14+SUSF304 |
|||||||
| DN20 | |||||||||
| DN25 | |||||||||
*Please contact MIYAWAKI for further information.
●Maximum allowable pressure (PMA): 2,1MPa (305psig)
PMA is the pressure that can be tolerated by pressure-resistant parts (body) .
●Maximum allowable temperature (TMA): 220℃ (428℉)
TMA is the temperature that can be tolerated by pressure-resistant parts (body) .
●Min. operating pressure differential (⊿PMN): 0,03MPa (4.4psig)
⊿PMN is the minimum operating pressure differential between the trap inlet and outlet.
*Special design models against steam locking are available.
Models: SC31-G/SC31-2
Discharge Capacity
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