Miyawaki ESU5 Inverted Bucket Steam Traps

Manufacturer: MIYAWAKI Inc.
Model: ESU5

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

The SCCV System valve and robust super lever work together to provide superb durability, while the stainless steel internal components further enhance the overall strength and reliability.

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 effectively prevents steam and air locking because a small air vent hole at the top of the bucket continuously 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

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
SCS13A/CF8

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

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