Pressure Reducing Valve (PRV) are designed for regulating the downstream pressure and maintaining it within certain acceptable limits. Ideally, a PRV should provide constant downstream pressure while delivering the required flow, i.e. the PRV automatically adjusts the flow to meet the downstream system demand. Depending on the model, MIYAWAKI`s PRV are designed for steam, air, gases and liquids.
MIYAWAKI manufactures the following types of PRV:
– Direct acting pressure reducing valves RE1, RE20, REH20, REC20, REC1 and RE2 for steam
– Pilot operated pressure reducing valves RE3 and RE10N for steam
– Pressure reducing valves with a downstream pressure sensing line RE20L, REH20L and REC20L for steam
– Direct acting pressure reducing valves REA20, REAH20 and REAC20 for air, gases and liquids
Direct acting pressure reducing valve for steam
| Model | Sizes | Available Connections | Maximum Operating Pressure | Secondary Pressure Range | Maximum Operating Temperature | Body and Cover Material | Download | |
|---|---|---|---|---|---|---|---|---|
| RE1 | 1/2″ – 1″ | Screwed Rc & NPT |
16 bar / 230psig | 0.5 – 10 bar / 7-145 psig | 204°C | Brass |  |
|
| RE2 | 3/8″ | Screwed Rc & NPT |
10 bar / 145 psig | 1 – 5 bar / 14 – 72 psig | 184°C | Ductile Iron | |
| Model | Sizes | Available Connections | Maximum Operating Pressure | Secondary Pressure Range | Maximum Operating Temperature | Body and Cover Material | Download | |
|---|---|---|---|---|---|---|---|---|
| RE20 | 1/2″ – 8″ | Flanged DIN-EN, ASME | 22 bar / 309 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 350°C | Ductile Iron | |
|
| REH20 | 1/2″ – 8″ | Flanged DIN-EN, ASME | 28 bar / 406 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 400°C | Cast Steel | |
|
| REC20 | 1/2″ – 8″ | Screwed Rc & NPT |
29 bar / 420 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 400°C | Stainless Steel | |
| Model | Sizes | Available Connections | Maximum Operating Pressure | Secondary Pressure Range | Maximum Operating Temperature | Body and Cover Material | Download | |
|---|---|---|---|---|---|---|---|---|
| REC1 | 1/2″ – 1″ | Screwed Rc & NPT |
16 bar / 230psig | 0.2 – 10 bar / 2.9-145 psig | 220°C | Stainless Steel | |
|
| REC1F | 1/2″ – 1″ | Flanged DIN-EN, ASME, JIS | 16 bar / 230psig | 0.2 – 10 bar / 2.9-145 psig | 220°C | Stainless Steel | |
Pilot operated pressure reducing valve for steam
| Model | Sizes | Available Connections | Maximum Operating Pressure | Secondary Pressure Range | Maximum Operating Temperature | Body and Cover Material | Download | |
|---|---|---|---|---|---|---|---|---|
| REC3 | 1/2″ – 1″ | Screwed Rc & NPT |
16 bar / 230psig | 0.3 – 12 bar / 4.4-174 psig | 220°C | Brass | |
|
| RE10N | 1/2″ – 2″ | Flanged DIN-EN, ASME, JIS | 16 bar / 230psig | 0.3 – 12 bar / 4.4-174 psig | 220°C | Ductile Iron | |
PRV with a downstream pressure sensing line for steam
| Model | Sizes | Available Connections | Maximum Operating Pressure | Secondary Pressure Range | Maximum Operating Temperature | Body and Cover Material | Download | |
|---|---|---|---|---|---|---|---|---|
| RE20L | 1/2″ – 8″ | Flanged DIN-EN, ASME | 22 bar / 309 psig | 0.5 – 1.0 bar / 7.3 – 145 psig | 350°C | Ductile Iron | |
|
| REH20L | 1/2″ – 8″ | Flanged DIN-EN, ASME | 28 bar / 406 psig | 0.5 – 1.0 bar / 7.3 – 145 psig | 400°C | Cast Steel | |
|
| REC20L | 1/2″ – 8″ | Screwed Rc & NPT |
29 bar / 420 psig | 0.5 – 1.0 bar / 7.3 – 145 psig | 400°C | Stainless Steel | |
Direct acting PRV for air, gases and liquids
| Model | Sizes | Available Connections | Maximum Operating Pressure | Secondary Pressure Range | Maximum Operating Temperature | Body and Cover Material | Download | |
|---|---|---|---|---|---|---|---|---|
| REA20 | 1/2″ – 8″ | Flanged DIN-EN, ASME | 25 bar / 362 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 350°C | Ductile Iron | |
|
| REAH20 | 1/2″ – 8″ | Flanged DIN-EN, ASME | 40 bar / 580 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 400°C | Cast Steel | |
|
| REAC20 | 1/2″ – 8″ | Screwed Rc & NPT |
40 bar / 580 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 400°C | Stainless Steel | |
PRV with a downstream pressure sensing line for air, gases and liquids
| Model | Sizes | Available Connections | Maximum Operating Pressure | Secondary Pressure Range | Maximum Operating Temperature | Body and Cover Material | Download | |
|---|---|---|---|---|---|---|---|---|
| REA20L | 1/2″ – 8″ | Flanged DIN-EN, ASME | 25 bar / 362 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 350°C | Ductile Iron | |
|
| REAH20L | 1/2″ – 8″ | Flanged DIN-EN, ASME | 40 bar / 580 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 400°C | Cast Steel | |
|
| REAC20L | 1/2″ – 8″ | Screwed Rc & NPT |
40 bar / 580 psig | 0.5 – 1.6 bar / 7.3 – 230 psig | 400°C | Stainless Steel | |