Inverted Bucket Steam Traps belong to the family of mechanical traps. They operate on the difference in density between steam and water.
MIYAWAKI offers a very wide range of inverted bucket steam traps for small up to large condensate loads. Inverted bucket steam traps discharge the condensate intermittently.
Types:
| ES | Cast Iron Inverted Bucket Steam Traps for small up to medium condensate loads |
| ER | Cast Iron Inverted Bucket Steam Traps for medium up to high condensate loads |
| ESH, ER25 | Cast Steel Inverted Bucket Steam Traps for high pressure and small up to high condensate loads |
FEATURES
- All traps are equipped with stainless steel wear and corrosion resistant lever, valve and seat system for long and trouble-free service
- All valves and seats are lapped together
- Traps of the series ER contain the patented SCCV® (Self Closing and Centering Valve) — System, which increases the lifetime of the valve and seat substantially
- A small hole in the top of the bucket secures continuous automatic air venting
- All traps are designed for quick and easy inline repairability
- Withstands high back pressure (up to 90%)
Heat exchangers, dryers, unit heaters, sterilizers and other applications, where condensate must be removed immediately.
SUPER-DISCHARGER:
- Incorporates the MIYAWAKI SCCV® -System
- Double valve system with needle pilot valve and main valve
- Operates by the pressure difference inside the valve unit
- Makes the discharge capacity very large
- Designed for high pressure up to 6,4 MPa (925 psig) — only for ER25
ES SERIES
Cast iron condensate trap for low-medium capacity
Inverted bucket steam traps discharge condensate without accumulating it in front of the steam trap with a temperature close to a saturation temperature.
Application: for drainage of steam pipes, heat exchangers and various saturated gas systems in all sectors of industry where a quick condensate drain is needed.
| Model | Available Sizes | Available Connections | Maximum Operating Pressure MPa (psig) | Maximum Operating Temperature °C (°F) | Body and Cover Material | Maximum capacity kg/h(lb/h) |
| ES 5 | 15 – 25 | Screwed Rc & NPT | 1,6 | 350 | Ductile Cast Iron FCD450 (GGG-40.3) | 300 |
| ES 8N | 15 – 25 | Screwed Rc & NPT flanged JIS, ANSI, DIN | 1,6 | 350 | Ductile Cast Iron FCD450 (GGG-40.3) | 570 |
| ES 10 | 20 – 40 | Screwed Rc & NPT | 1,6 | 220 | Cast Iron FC250 (GG-25) | 900 |
| ES 10F | 15 – 50 | flanged JIS, ANSI, DIN | 1,6 | 220 | Cast Iron FC250 (GG-25) | 900 |
| ES 12N | 15 – 50 | flanged JIS, ANSI, DIN | 1,6 | 220 | Cast Iron FC250 (GG-25) | 1700 |
ER SRIES
Cast iron condensate trap for medium-high capacity
Inverted bucket steam traps discharge condensate without accumulating it in front of the steam trap with a temperature close to a saturation temperature
Application: for drainage of steam pipes, heat exchangers and various saturated gas systems in all sectors of industry where a quick condensate drain is needed.
| Model | Available Sizes | Available Connections | Maximum Operating Pressure MPa (psig) | Maximum Operating Temperature °C (°F) | Body and Cover Material | Maximum capacity kg/h(lb/h) |
| ER 105 | 20 – 40 | Screwed Rc & NPT | 0,7 | 220 | Cast Iron FC250 (GG-25) | 2050 |
| ER 105F | 15 – 50 | Flanged JIS, ANSI, DIN | ||||
| ER 110 | 15 – 50 | Flanged JIS, ANSI, DIN | 1,2 | 220 | Cast Iron FC250 (GG-25) | 2450 |
| ER 116 | 15 – 50 | Flanged JIS, ANSI, DIN | 1,6 | 300 | Ductile Cast Iron FCD450 (GGG-40.3) | 2850 |
| ER 120 | 40 – 65 | Flanged JIS, ANSI, DIN | 1,6 | 220 | Cast Iron FC250 (GG-25) | 9000 |
ESH & ER25 SERIES
Cast-steel inverted bucket condensate trap for medium-high pressure
Inverted bucket condensate trap ESU series body, bonnet and internal parts are fully made of stainless steel. Condensate traps can be used in the conditions of working pressure up to 2.1 MPa (21 bar) with low-medium capacity.
Application: for drainage of heat exchangers and various saturated gas systems in all sectors of industry where a quick condensate drain is needed.
| Model | Available Sizes | Available Connections | Maximum Operating Pressure MPa (psig) | Maximum Operating Temperature °C (°F) | Body and Cover Material | Maximum capacity kg/h(lb/h) |
| ESU 5 | 15 – 25 | Screwed Rc & NPT | 2,1 | 350 | Ductile Cast Iron FCD450 (GGG-40.3) | 300 |