Ueda Seisakusho
Ueda Seisakusho PU72W Series Pressure Switch
Manufacturer: Ueda Seisakusho Co., Ltd.
Model : PU72W series
Features
- The PU72W series is an outdoor waterproof pressure switch.
- The switch body is made of aluminum die-casting, making it lightweight and sturdy.
- It is suitable for situations where you want to narrow the opening and closing pressure difference (ON-OFF width) in the pressure setting, or for upper limit alarm (1 point setting) or lower limit alarm (1 point setting).
Product Information
| Item | Specification |
|---|---|
| Product Name | Outdoor waterproof pressure switch |
| Size | W.106 x D.64.5 x H.144 mm |
| Protection Structure | IP65 (IEC529) equivalent |
| Durability | Electrical & Mechanical Life: 300,000 times or more |
| Weight | Approx. 0.85 kg |
| Pressure Receiving Part | Bellows Type |
| Material | Phosphor bronze |
| Connection size | Rc1/4 (PT1/4 female thread) |
| Insulation Resistance | DC 500V Megger — 100 MΩ or more |
| Dielectric Strength | AC 2,000V for 1 minute |
Option
- Pressure receiving part made of stainless steel (SUS316)
- Body mounting feet (brackets) included
- Low voltage and low current compatible products
Specifications
| Model | Pressure Adjustment Range (Range) MPa | ON-OFF Pressure Differential Range (Diff.) MPa | Pressure Resistance (MPa) | ||
|---|---|---|---|---|---|
| Minimum | Maximum | Smallest | Largest | ||
| PU72W-03-R3KB | 0 | 0.3 | 0.02 | 0.06 | 1.0 |
| PU72W-06-R3KB | 0 | 0.6 | 0.03 | 0.08 | 1.0 |
| PU72W-10-R3KB | 0.1 | 1.0 | 0.035 | 0.1 | 1.5 |
| PU72W-20-R3KB | 0.2 | 2.0 | 0.09 | 0.2 | 2.5 |
| PU72W-30-R3KB | 0.5 | 3.0 | 0.14 | 0.28 | 3.5 |
| PU72(W)-34–RC2KBN | 0.2 ~ 3.4 | MAX.P. 10% | 25.0 | ||
| PU72(W)-60–RC2KBN | 0.5 ~ 6.0 | “ | 30.0 | ||
| PU72(W)-100–RC2KBN | 1.0 ~ 10.0 | “ | 35.0 | ||
| PU72(W)-150–RC2KBN | 1.0 ~ 15.0 | “ | 40.0 | ||
| PU72(W)-260–RC2KBN | 2.0 ~ 26.0 | “ | 50.0 | ||
| PU72(W)-360–RC2KBN | 4.0 ~ 36.0 | “ | 70.0 | ||
| PU72(W)-500–RC2KBN | 8.0 ~ 50.0 | “ | 80.0 | ||
| PU72(W)-800–RC2KBN | 10.0 ~ 80.0 | “ | 90.0 | ||
Model Code Explanation
| (A) | 10 = Maximum pressure adjustment range: 1.0 MPa |
| (B) | RC2 = Rc1/4 (PT1/4 thread) RC3 = Rc3/8 (PT3/8 thread) ※Note 1 R2 = R1/4 (PT1/4 thread) R3 = R3/8 (PT3/8 thread) ※Note 1 F6 = Ø6 mm copper tube flare connection ※Note 1, 2 |
| (C) | No symbol = Phosphor bronze + Brass (standard) S = Stainless Steel (SUS316) |
| (D) | No symbol = No indicator (standard) L2 = With indicator light (AC200V neon) L9 = With indicator light (DC24V LED) |
| (E) | No symbol = Without bracket B = With bracket |
| (F) | No symbol = Built-in snap switch (standard product) M = Built-in micro switch DCM = Low-voltage, micro-current specification |
Electrical Rating Table
| Voltage (V) | AC (A) | DC (A) |
|---|---|---|
| 24 | – | 3 |
| 48 | – | 1.5 |
| 110 | 10 | 0.5 |
| 220 | 10 | 0.25 |
| 440 | 5 | – |
