Fushiman Co.
Fushiman P100-3X Pressure Reducing Valves With Integral By-Pass
Manufacturer: Fushiman Co.,LTD.
Model: P100-3X
| Model | Nominal Diameter | Primary Pressure | Secondary Side Setting Range | Maximum Operating Temperature | Body Material | Connection |
|---|---|---|---|---|---|---|
| P100-3X | 20～100 | MAX. 1.0MPa | 0.03～0.7MPa | 90℃ | CAC | Flange, Threaded |
(External appearance for nominal diameters of 50 or below)
- No need for bypass piping.
- For nominal diameters 20 to 50, switching between pressure reduction, shutoff, and bypass can be done with a wrench.
(For nominal diameters 65 to 100, a manual handle is provided.) - The pressure-reducing mechanism can be disassembled and inspected while water is flowing.
- Pressure gauge mounting tap holes are provided on both inlet and outlet sides.
- Greatly reduces pipeline design and construction work.
- Significantly minimizes the installation space required for the pressure-reducing valve.
- Made of CAC and SUS materials, eliminating concerns about corrosion.
- Low-profile design makes it ideal for indoor installation.
- Strainer is built-in.
Specifications and Materials
| Fluid | Nominal Diameter | Pressure (MPa) | Temperature (°C) | Main Component Materials | Pipe Connection | ||||
|---|---|---|---|---|---|---|---|---|---|
| Primary Side | Secondary Side Setting Range | Valve Body & Switching Valve | Valve Diaphragm | Valve Seat | Valve Stem | ||||
| Water, Hot Water | 20-25 | 0.08 – 1.0 | 0.03 – 0.15 0.1 – 0.7 | 0 – 90 | Bronze | Synthetic Rubber | Bronze | Bronze or Stainless Steel | JIS Rc Threaded Connection |
| 32-100 | JIS 10K Full-Face Flange | ||||||||
Performance
| Nominal Diameter | Minimum Set Differential Pressure (MPa) | Minimum Adjustable Flow Rate (L/min) | Valve Capacity | Offset (MPa) | Shutoff Pressure Rise (MPa) | Valve Seat Leakage | ||
|---|---|---|---|---|---|---|---|---|
| Cv Value | Maximum Flow Rate (L/min) | Set Pressure Range | ||||||
| 0.03 – 0.15 | 0.1 – 0.7 | |||||||
| 20 | 0.05 | 0.5 | 2.6 | 55 | ≤ 0.05 | ≤ 0.07 | ≤ 0.02 | ≤ 0.01% of Rated Flow |
| 25 | 3.9 | 85 | ||||||
| 32 | 2 | 6.3 | 120 | |||||
| 40 | 8.3 | 150 | ||||||
| 50 | 13 | 250 | ||||||
| 65 | 5 | 21 | 350 | ≤ 0.07 | ≤ 0.07 | |||
| 80 | 26 | 450 | ||||||
| 100 | 40 | 700 | ||||||
Noise Characteristics
- Under conditions where the primary-side pressure is 0.6 MPa and the set pressure is 0.2 MPa, the measured background noise level is 30 dB(A) at a measurement distance of 15 cm.
- The noise level may differ under conditions where the primary-side pressure is 0.6 MPa but the set pressure is different from 0.2 MPa.
Structure and Dimensions
| Nominal Diameter 20・25 | Nominal Diameter 32–50 |
|---|---|
 |  |
(mm, kg)
| Nominal Diameter | D (Thread Size) | L (Length) | H1 | H2 | E | Mass (kg) | |
|---|---|---|---|---|---|---|---|
| Threaded Type | Flange Type JIS 10K | ||||||
| 20 | 3/4 | 160 | 126 | 165 | 100 | 6.5 | |
| 25 | 1 | 160 | 126 | 165 | 100 | 6.5 | |
| 32 | 200 | 130 | 235 | 130 | 13.5 | ||
| 40 | 200 | 130 | 235 | 130 | 14 | ||
| 50 | 220 | 140 | 275 | 145 | 19 | ||
| 65 | 270 | 201 | 315 | 190 | 41 | ||
| 80 | 270 | 201 | 315 | 190 | 42 | ||
| 100 | 330 | 215 | 373 | 215 | 58 | ||
For nominal diameters 65 to 100, a manual handle is attached, and the shape differs partially from the diagram.
The pressure gauge mounting hole is Rc 3/8 for nominal diameters up to 100.
Switching Method
Use a tool (monkey wrench of 250 mm or larger) to rotate the lower shaft, allowing switching between:
- Pressure reduction mode
- Shutoff mode
- Bypass mode
After switching, be sure to tighten the hex nut to lock it securely.
Switching Between Pressure Reduction, Shutoff, and Bypass
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