Miyawaki
Miyawaki RE3 Pilot Operated For Steam
Manufacturer: Miyawaki Inc.
Model: RE3
Features
Pressure reducing valves for steam
These are automatic valves that reduce the steam supply pressure to the certified pressure for the device in use, and keep it steady.
Pilot operated valves
The drive section detects the pressure supplied from the pilot chamber, and the degree of opening of the valve is adjusted to keep the pressure on the secondary side at a set level.
Compact and cost effective design
It has a space saving (ultra small/lightweight).
Low heat dissipation with superb energy saving properties and cost performance.
Simple pressure adjustment
Pressure adjustment can be performed by hand using a handle, with no tools required. (with lock mechanism)
Superb durability
Offers superb durability thanks to an overstress prevention mechanism.
Easy maintenance
It is easy disassembly and reassembly.
Uses
Suitable for a wide range of uses including devices for foodstuffs, dyeing, and cleaning as well as heating equipment and air conditioning equipment.
Dimensions/Weight
| Size | Dimensions (mm) | Dimensions (in) | Weight | |||||||||
| L | L1 | H1 | H2 | W | L | L1 | H1 | H2 | W | (kg) | (lb) | |
| 1/2” | 90 | 127 | 87 | 58 | 74 | 3.5 | 5 | 3.4 | 2.3 | 2.9 | 2,7 | 6.0 |
| 3/4” | 95 | 130 | 3.7 | 5.1 | 2,8 | 6.2 | ||||||
| 1” | 100 | 132 | 3.9 | 5.2 | ||||||||
| 1 1/4” | 130 | 155 | 111 | 73 | 96 | 5.1 | 6.1 | 4.4 | 2.9 | 3.8 | 6,2 | 13.7 |
| 1 1/2” | 6,3 | 13.9 | ||||||||||
| 2” | 140 | 157 | 121 | 79 | 110 | 5.5 | 6.2 | 4.8 | 3.1 | 4.3 | 8,3 | 18.3 |
Specifications
| Model | Connection | Max. operating pressure | Operating pressure range | Control pressure range | Values | Max. pressure reduction ratio | Max. operating temperature | Body material | ||||||
| Type | Size | (MPa) | (psig) | Primary side pressure (MPa) | Primary side pressure (psig) | Secondary side pressure (MPa) | Secondary side pressure (psig) | Cv | Kvs | (℃) | (℉) | |||
| RE3 | Screwed Rc,NPT | 1/2” | 1,6 | 232 | 0,1 – 1,6 | 14.5 – 230 | 0,034 – 1,2 | 4.9 – 174 | 0,8 | 0,7 | 20:1 | 220 | 428 | Brass C3771 |
| 3/4” | 1,9 | 1,6 | ||||||||||||
| 1” | 3,0 | 2,6 | ||||||||||||
| 1 1/4” | 4,9 | 4,2 | ||||||||||||
| 1 1/2” | 6,8 | 5,9 | ||||||||||||
| 2” | 12,0 | 10,3 | ||||||||||||
Offset: up to 0,03MPa (4.4psig)
Minimum differential pressure: 0,07MPa (10.2psig)
Minimum adjustable flow rate: 5% of the rated flow rate
Lockup pressure : 0,03MPa (4.4psig) or lower
Capacity Chart
How to use the chart (example)
To reduce the pressure of 400kg/h (882lb/h) of steam from 1,2MPa to 0,7MPa (174psig to 102psig)
1. Find the point at which the primary side pressure 1,2MPa (174psig) curve and secondary side pressure 0,7MPa (102psig) horizontal line intersect.
2. Trace a vertical line from the point where they intersect, and look for the smallest-sized product where the steam flow rate is 400kg/h (882lb/h) or more at the point where the vertical line you have traced intersects the horizontal size lines.
3. In this case, the pressure reducing valve with a size of 1″ is optimum.
Installation Examples
Related Products Models for reference
Sight glass TS1, T3
Y strainer YM1, YSF
Separator H3, H5
Steam trap Differs depending on conditions
