Fushiman Co.
Fushiman PPD41L-3 Pressure Reducing Valves
Manufacturer: Fushiman Co.,LTD.
Model: PPD41L-3
| Model | Nominal Diameter | Primary Pressure | Secondary Pressure Range | Maximum Operating Temperature | Body Material | Connection |
|---|---|---|---|---|---|---|
| PPD41L-3 | 15〜25 | MAX. 0.5MPa | 0.01～0.15MPa | 80℃ | FCD,SCPH,SCS | Threaded, Flange |
- PPD41B-3 type pressure reducing valve is for low-pressure applications.
- The valve is equipped with synthetic rubber, ensuring good sealing when closed.
- If the valve body is made of stainless steel casting, a built-in strainer is included (equivalent to 80 mesh).
- If the capacity is insufficient, please use the PMD31L type pressure reducing valve.
- Ideal for high-precision pressure control, such as in combustion burners.
Specifications and Materials
| Fluid | Pressure MPa | Temperature ℃ | Main Component Materials | Pipe Connection | |||||
|---|---|---|---|---|---|---|---|---|---|
| Primary Side | Secondary Side Setting Range | Valve Box | Lower Cover | Spring Protection Tube | Valve Body & Stem | Diaphragm | |||
| Air and Other Non-Corrosive Gases | 0.03 – 0.5 | 0.01 – 0.05, 0.03 – 0.15 | 0 – 80 | Ductile Cast Iron | Bronze | Ductile Cast Iron | Stainless Steel (Valve Contact Surface with Synthetic Rubber Coating) | Synthetic Rubber | JIS Rc Threaded Type |
| Ductile Cast Iron | Bronze | Flange JIS 10K Full Face | |||||||
| Cast Steel | Stainless Steel | ||||||||
| Stainless Steel Cast Steel | |||||||||
Note: The valve body can also be made of cast bronze or stainless steel cast bronze according to ASME Class 150.
Performance
| Minimum Differential Pressure Setting | 0.02 MPa |
|---|---|
| Offset | Approx. 10% of Maximum Set Pressure (Minimum Value 0.01 MPa) |
| Shut-off Pressure Rise | Approx. 5% of Maximum Set Pressure |
| Minimum Adjustable Flow Rate (Air) | Approx. 0.3 m³/h (Standard Condition) |
| Valve Seat Leakage | Below 0.01% of Rated Flow |
| Cv Value | 1.8 |
| Maximum Flow Rate | Nominal Diameter 15: 20 m³/h (Standard Condition), Nominal Diameter 20・25: 35 m³/h (Standard Condition) |
Structure and Dimensions
Dimensions and Mass
(mm, kg)
| Material | Nominal Diameter | Main Dimensions | Mass | Pipe Connection | |||
|---|---|---|---|---|---|---|---|
| L | H1 | H2 | E | ||||
| Ductile Cast Iron | 15 | 95 | 49 | 165 | 100 | 2.6 | JIS Rc Threaded Type |
| 20 | 130 | 61 | 222 | 130 | 5.8 | ||
| 25 | 130 | 61 | 222 | 130 | 5.8 | ||
| Ductile Cast Iron | 15 | 170 | 54 | 161 | 100 | 4.6 | Flange JIS 10K Full Face |
| 20 | 215 | 65 | 218 | 130 | 7.9 | ||
| 25 | 215 | 65 | 218 | 130 | 8.9 | ||
| Cast Steel | 15 | 207 | 69 | 213 | 130 | 8.3 | Flange JIS 10K Full Face |
| 20 | 211 | 69 | 213 | 130 | 8.7 | ||
| 25 | 211 | 69 | 213 | 130 | 9.3 | ||
| Stainless Steel Cast Steel | 15 | 207 | 63 | 210 | 130 | 8.3 | Flange JIS 10K Full Face |
| 20 | 211 | 63 | 210 | 130 | 8.7 | ||
| 25 | 211 | 63 | 210 | 130 | 9.3 | ||
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