E Series | Inverted Bucket Steam Traps

Steam Traps E Series | Inverted Bucket Steam Traps
ESU5
1978 Received the Award for Excellence in Energy Saving

Features/ Applications
Features
No condensate logging on primary side
Intermittent or continuous discharge depending on condensate loads means no condensate stacking up on the primary side.
Superb durability
Offers superb durability thanks to the SCCV System valve and robust super lever, as well as stainless steel internal components.
Easy maintenance
For quick and easy maintenance, this model can be repaired directly in line.
Condensate recovery
With its high degree of back pressure tolerance, this model supports condensate recovery at pressures up to 90% of the upstream pressure.
Complete steam containment
A double steam separation mechanism (implemented with a U-shaped duct and inverted bucket) provides reliable steam separation and ensures trap tightness.
Free from steam and air locking
This model is free from steam and air locking due to a small air vent hole in the top of the bucket (discharges hot air and non-condensable gases).

*’SCCV System’ is an abbreviation of Self Closing and Centering Valve System.
Typical applications
Body and cover made of stainless steel, and suitable for food equipment, medical equipment and other applications.
Dimensions/Weight
Dimensions/Weight
Screwed

Size (”) | Dimensions (mm) | Dimensions (in) | Weight | |||||||
L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
1/2” | 103 | 57 | 69 | 75 | 4.1 | 2.2 | 2.7 | 3.0 | 1,9 | 4.2 |
3/4” | 4.1 | 2,0 | 4.4 | |||||||
1” | 109 | 4.3 | 2,1 | 4.6 |
Flanged

Size (”) | Dimensions (mm) | Dimensions (in) | Weight | |||||||
L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
1/2” | 175 | 57 | 69 | 75 | 6.9 | 2.2 | 2.7 | 3.0 | 3,5 | 7.7 |
3/4” | 195 | 7.7 | 3,7 | 8.2 | ||||||
1” | 215 | 8.5 | 4,1 | 9.0 |
*Customized face-to-face dimensions on request.
*Please contact MIYAWAKI for further information.
Socket

Size (”) | Dimensions (mm) | Dimensions (in) | Weight | |||||||
L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
1/2” | 203 | 57 | 69 | 75 | 8.0 | 2.2 | 2.7 | 3.0 | 2,5 | 5.5 |
3/4” | 230 | 9.1 | 2,6 | 5.7 | ||||||
1” | 254 | 10.0 | 4,1 | 6.2 |
Specifications
Model | Connection |
Max. operating pressure |
Max. operating pressure differential |
Max. operating temperature |
Body material | ||||
Type | Size | (MPa) | (psig) | (MPa) | (psig) | (℃) | (℉) | ||
ESU5-3 |
Screwed Rc,NPT |
1/2” | 0,3 | 43 | 0,3 | 43 | 350 | 662 |
Stainless cast steel |
3/4” | |||||||||
1” | |||||||||
ESU5-7 | 1/2” | 0,7 | 100 | 0,7 | 100 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5-11 | 1/2” | 1,1 | 160 | 1,1 | 160 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5-16 | 1/2” | 1,6 | 230 | 1,6 | 230 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5-21 | 1/2” | 2,1 | 305 | 2,1 | 305 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5F-3 |
Flanged JIS, ASME, DIN |
1/2” | 0,3 | 43 | 0,3 | 43 | |||
3/4” | |||||||||
1” | |||||||||
ESU5F-7 | 1/2” | 0,7 | 100 | 0,7 | 100 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5F-11 | 1/2” | 1,1 | 160 | 1,1 | 160 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5F-16 | 1/2” | 1,6 | 230 | 1,6 | 230 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5F-21 | 1/2” | 2,1 | 305 | 2,1 | 305 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5W-3 |
Socket Weld JIS, ASME, DIN |
1/2" | 0,3 | 43 | 0,3 | 43 | |||
3/4" | |||||||||
1" | |||||||||
ESU5W-7 | 1/2" | 0,7 | 100 | 0,7 | 100 | ||||
3/4" | |||||||||
1" | |||||||||
ESU5W-11 | 1/2" | 1,1 | 160 | 1,1 | 160 | ||||
3/4" | |||||||||
1" | |||||||||
ESU5W-16 | 1/2" | 1,6 | 230 | 1,6 | 230 | ||||
3/4" | |||||||||
1" | |||||||||
ESU5W-21 | 1/2" | 2,1 | 305 | 2,1 | 305 | ||||
3/4" | |||||||||
1" |
*Customized face-to-face dimensions on request
*Please contact MIYAWAKI for further information.
Discharge Capacity

Installation Examples

●To keep the drawing simple, bypass lines, valves, and other required equipment are not displayed.
●If you wish to recover condensate, attach a check valve (CV model) and shut off valve on the trap’s outlet side
Download
* Membership registration is required to download the documents.
Features
No condensate logging on primary side
Intermittent or continuous discharge depending on condensate loads means no condensate stacking up on the primary side.
Superb durability
Offers superb durability thanks to the SCCV System valve and robust super lever, as well as stainless steel internal components.
Easy maintenance
For quick and easy maintenance, this model can be repaired directly in line.
Condensate recovery
With its high degree of back pressure tolerance, this model supports condensate recovery at pressures up to 90% of the upstream pressure.
Complete steam containment
A double steam separation mechanism (implemented with a U-shaped duct and inverted bucket) provides reliable steam separation and ensures trap tightness.
Free from steam and air locking
This model is free from steam and air locking due to a small air vent hole in the top of the bucket (discharges hot air and non-condensable gases).

*’SCCV System’ is an abbreviation of Self Closing and Centering Valve System.
Typical applications
Body and cover made of stainless steel, and suitable for food equipment, medical equipment and other applications.
Dimensions/Weight
Screwed

Size (”) | Dimensions (mm) | Dimensions (in) | Weight | |||||||
L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
1/2” | 103 | 57 | 69 | 75 | 4.1 | 2.2 | 2.7 | 3.0 | 1,9 | 4.2 |
3/4” | 4.1 | 2,0 | 4.4 | |||||||
1” | 109 | 4.3 | 2,1 | 4.6 |
Flanged

Size (”) | Dimensions (mm) | Dimensions (in) | Weight | |||||||
L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
1/2” | 175 | 57 | 69 | 75 | 6.9 | 2.2 | 2.7 | 3.0 | 3,5 | 7.7 |
3/4” | 195 | 7.7 | 3,7 | 8.2 | ||||||
1” | 215 | 8.5 | 4,1 | 9.0 |
*Customized face-to-face dimensions on request.
*Please contact MIYAWAKI for further information.
Socket

Size (”) | Dimensions (mm) | Dimensions (in) | Weight | |||||||
L | H1 | H2 | W | L | H1 | H2 | W | (kg) | (lb) | |
1/2” | 203 | 57 | 69 | 75 | 8.0 | 2.2 | 2.7 | 3.0 | 2,5 | 5.5 |
3/4” | 230 | 9.1 | 2,6 | 5.7 | ||||||
1” | 254 | 10.0 | 4,1 | 6.2 |
Model | Connection |
Max. operating pressure |
Max. operating pressure differential |
Max. operating temperature |
Body material | ||||
Type | Size | (MPa) | (psig) | (MPa) | (psig) | (℃) | (℉) | ||
ESU5-3 |
Screwed Rc,NPT |
1/2” | 0,3 | 43 | 0,3 | 43 | 350 | 662 |
Stainless cast steel |
3/4” | |||||||||
1” | |||||||||
ESU5-7 | 1/2” | 0,7 | 100 | 0,7 | 100 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5-11 | 1/2” | 1,1 | 160 | 1,1 | 160 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5-16 | 1/2” | 1,6 | 230 | 1,6 | 230 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5-21 | 1/2” | 2,1 | 305 | 2,1 | 305 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5F-3 |
Flanged JIS, ASME, DIN |
1/2” | 0,3 | 43 | 0,3 | 43 | |||
3/4” | |||||||||
1” | |||||||||
ESU5F-7 | 1/2” | 0,7 | 100 | 0,7 | 100 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5F-11 | 1/2” | 1,1 | 160 | 1,1 | 160 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5F-16 | 1/2” | 1,6 | 230 | 1,6 | 230 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5F-21 | 1/2” | 2,1 | 305 | 2,1 | 305 | ||||
3/4” | |||||||||
1” | |||||||||
ESU5W-3 |
Socket Weld JIS, ASME, DIN |
1/2" | 0,3 | 43 | 0,3 | 43 | |||
3/4" | |||||||||
1" | |||||||||
ESU5W-7 | 1/2" | 0,7 | 100 | 0,7 | 100 | ||||
3/4" | |||||||||
1" | |||||||||
ESU5W-11 | 1/2" | 1,1 | 160 | 1,1 | 160 | ||||
3/4" | |||||||||
1" | |||||||||
ESU5W-16 | 1/2" | 1,6 | 230 | 1,6 | 230 | ||||
3/4" | |||||||||
1" | |||||||||
ESU5W-21 | 1/2" | 2,1 | 305 | 2,1 | 305 | ||||
3/4" | |||||||||
1" |
*Customized face-to-face dimensions on request
*Please contact MIYAWAKI for further information.


●To keep the drawing simple, bypass lines, valves, and other required equipment are not displayed.
●If you wish to recover condensate, attach a check valve (CV model) and shut off valve on the trap’s outlet side
* Membership registration is required to download the documents.