Inverted bucket steam trap - ES8N | Miyawaki
Inverted bucket steam trap - ES8N | Miyawaki

Inverted bucket steam trap - ES8N | Miyawaki

The Inverted Bucket Steam Trap ES8N by Miyawaki is a robust and efficient steam trap designed for reliable condensate discharge in steam systems. Utilizing an inverted bucket mechanism, it effectively distinguishes between steam and condensate, ensuring minimal steam loss and optimal energy efficiency. The ES8N model is known for its durability, resistance to water hammer, and ability to handle varying pressure and load conditions, making it suitable for a wide range of industrial applications. Its design facilitates easy maintenance and long service life, contributing to reduced operational costs.
Standard (Options)
  • DIN
  • ANSI
  • JIS
Connection (Options)
  • BSP
  • NPT
  • Flanged
Material (Options)
  • Ductile Cast Iron
Pressure Rating (Options)
  • PN 16
  • 0,5 - 1,6 Mpa

Description

1978 Received the Award for Excellence in Energy Saving

Features

No condensate logging on primary side

Intermittent or continuous discharge depending on condensate loads means no condensate stacking up on the primary side.

Easy maintenance

For quick and easy maintenance, this model can be repaired directly in line.

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.

Superb durability

Offers superb durability thanks to the SCCV System valve and robust super lever, as well as stainless steel internal components.

Condensate recovery

With its high degree of back pressure tolerance, this model supports condensate recovery at pressures up to 90% of the upstream pressure.

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

Suitable for a wide range of applications including industrial plants, food and beverage, dyeing, and cleaning.

Dimensions/Weight

Screwed

Size (”)

Dimensions (mm)Dimensions (in)Weight
LH1H2WLH1H2W(kg)(lb)
1/2"130

73

901005.12.93.53.93,78.2
3/4"
1"1355.33,98.6

Flanged

Size (”)Dimensions (mm)Dimensions (in)Weight
LH1H2WLH1H2W(kg)(lb)
1/2”17573901006.92.93.53.95,311.7
3/4”19568957.72.73.75,712.5
1”2158.56,815.0

Specifications

ModelConnection

Max. operating

pressure

Max. operating

pressure differential

Max. operating

temperature

Body

material

TypeSize(MPa)(psig)(MPa)(psig)TMO(℃)TMO(℉)
ES8N-5

Screwed

Rc,NPT

1/2”0,5730,573350662

Ductile cast

iron

FCD450

3/4”
1”
ES8N-81/2”0,81160,8116
3/4”
1”
ES8N-161/2”1,62301,6230
3/4”
1”
ES8NF-5

Flanged

FF,RF*

1/2”0,5730,573
3/4”
1”
ES8NF-81/2”0,81160,8116
1/2"
3/4”
1”
ES8NF-161/2”1,62301,6230
3/4”
1”

*Available flange standards: ASME/JPI 150lb, 300lb, DIN PN16, JIS 10K, 16K, 20K

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.