pressure switch PS-35-20

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

3 year

Product details

I. Model Interpretation (Common Conventions)**

1. **PS**: Typically stands for **Pressure Switch**.

2. **35**: Likely indicates:

- **Upper range limit** (e.g., 35 bar, 35 psi, 350 kPa).

- **Series number** (product line identifier).

3. **20**: May represent:

- **Port size** (e.g., 1/4" NPT, G1/4, M20×1.5).

- **Electrical rating** (e.g., 20A contact capacity).

- **Pressure unit** (e.g., bar or psi).

---

### **II. Typical Technical Specifications (Verify with Actual Manual)**

| **Parameter** | **Typical Value/Range** | **Notes** |

|-----------------------|--------------------------------------|------------------------------------|

| **Pressure Range** | 0.1 ~ 35 bar (≈1.4 ~ 500 psi) | Covers medium-to-high pressure |

| **Port Size** | G1/4" or 1/4" NPT | Industrial standard threading |

| **Contact Type** | SPDT (Single Pole Double Throw) | NO (Normally Open) + NC (Normally Closed) contacts |

| **Electrical Rating** | 10A @ 250V AC / 20A @ 125V AC | Medium-low power switching |

| **Protection Class** | IP65 | Dust/water resistant |

| **Media Compatibility**| Air, water, hydraulic oil (non-corrosive) | Confirm seal material |

| **Repeat Accuracy** | ±1~2% FS (Full Scale) | |

| **Setting Method** | Knob or screwdriver adjustment | Mechanical/digital options |

---

### **III. Common Applications**

1. **Pneumatic systems**: Compressor pressure protection, cylinder actuation control.

2. **Hydraulic systems**: Overpressure shutdown for presses, lubrication monitoring.

3. **Water treatment**: Pump start/stop control, tank level-pressure interlock.

4. **Industrial machinery**: Safety interlocks for injection molding machines, CNC equipment.

---

### **IV. Key Usage Notes**

1. **Calibration**: Verify set points with a pressure gauge after installation.

2. **Pulse Damping**: Add dampers in systems with pressure fluctuations to prevent contact chatter.

3. **Electrical Load**: Do not exceed contact rating; use arc suppression for inductive loads (e.g., motors).

4. **Media Compatibility**: Opt for stainless steel diaphragms/seals for corrosive fluids.

---

### **V. Common Alternative Models**

If discontinued, cross-reference these parameters for replacements:

| **Brand** | **Similar Model** | **Key Advantage** |

|-----------|---------------------|--------------------------------|

| SMC | ISE40-01-22 | High-precision digital display |

| Festo | SDE1-D10-G2-35L | Compact design |

| Parker | P3S-A-35K | High-pressure stainless steel |

| Danfoss | KP35 | Refrigerant-compatible |

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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3 year

Main Product: hydraulic motor, gear box, hydraulic pump , hydraulic valve , hydraulic winch, hydraulic system

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