The Sanhua PS01 Series Low Pressure Controls are designed to monitor low-side pressure in refrigeration and air conditioning systems. They operate an electrical switch when the pressure reaches a selected setting, helping protect equipment against excessively low suction pressure.
Available with automatic or manual reset and different pressure connection types, the series provides options for HVAC/R system protection and control.
WHAT IS THIS PRODUCT USED FOR?
The Sanhua PS01 Series Low Pressure Controls are used to detect low refrigerant pressure and switch a connected control circuit when pressure reaches a preset threshold. They can be used for low-pressure protection and compatible refrigeration control applications.
FEATURES
- Low-pressure monitoring for refrigeration and air conditioning systems
- Adjustable pressure settings for different system requirements
- Automatic and manual reset options
- Electrical switching for connection to compatible control circuits
- Flare and solder pressure connection options
- Designed for system protection against excessively low suction pressure
- Suitable for installation by qualified HVAC/R technicians
OPTIONS
- SAN-PS01AL-S01 – Automatic Reset, 1/4″ Flare Connection
- SAN-PS01MH-S01 – Manual Reset, 1/4″ Solder Connection
- SAN-PS01ML-S01 – Manual Reset, 1/4″ Flare Connection
SPECIFICATIONS
| Specification | SAN-PS01AL-S01 | SAN-PS01MH-S01 | SAN-PS01ML-S01 |
|---|---|---|---|
| Brand | Sanhua | Sanhua | Sanhua |
| Series | PS01 | PS01 | PS01 |
| Product Type | Low Pressure Control | Low Pressure Control | Low Pressure Control |
| Reset Type | Automatic | Manual | Manual |
| Pressure Connection | 1/4″ SAE Flare | 1/4″ Solder ODF | 1/4″ SAE Flare |
| Pressure Adjustment Range | −0.5 to 7 bar | −0.5 to 7 bar | −0.5 to 7 bar |
| Differential Pressure | 0.5–5 bar | 1 bar | 1 bar |
| Maximum Working Pressure | 16.5 bar | 16.5 bar | 16.5 bar |
| Electrical Contact | SPDT | SPDT | SPDT |
| Application | Low-pressure protection | Low-pressure protection | Low-pressure protection |
GENERAL TECHNICAL SPECIFICATIONS
| Specification | Details |
|---|---|
| Brand | Sanhua |
| Series | PS01 |
| Control Type | Low Pressure |
| Pressure Adjustment Range | −0.5 to 7 bar |
| Maximum Working Pressure | 1.65 MPa (16.5 bar) |
| Medium Temperature | −40°C to +120°C |
| Ambient Temperature | −30°C to +65°C |
| Contact Type | SPDT |
| Bellows Material | Tin Bronze |
| Pressure Connection Material | Brass |
| Application | Refrigeration and Air Conditioning |
**Non-Returnable Item – Electrical & Electronic Components**
We cannot return electrical and electronic components for a refund or credit due to incorrect selection, ordering errors, or change of mind. Please confirm compatibility before purchasing.
Faulty or incorrectly supplied products remain covered by applicable manufacturer warranties and statutory rights.



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