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| Brand Name: | Shengtai Instrument |
| Model Number: | SH0699 |
| MOQ: | 1 |
| Payment Terms: | T/T |
| Supply Ability: | 70000 sets/year |
Core Keywords: refrigeration oil refrigerant compatibility tester, SH/T 0699, refrigeration oil compatibility, refrigerant compatibility test, compressor oil testing
In refrigeration and air-conditioning systems, lubricating oil and refrigerant circulate together and must coexist stably across the full operating temperature range. Compatibility refers to whether the oil–refrigerant pair remains homogeneous without flocculation, precipitation or phase separation under specified low-temperature conditions.
Poor compatibility causes oil to separate from the refrigerant, leading to compressor oil return failure, heat-exchange efficiency drop and even compressor seizure. Testing the two-phase separation curve is therefore one of the key qualification steps for refrigeration oils, especially for POE/PAG oils used with HFC refrigerants.
Target Application: Compatibility evaluation between refrigeration oil and refrigerant, between different refrigeration oils, and between different refrigerants — for refrigeration oil manufacturers, compressor producers and petrochemical laboratories.
The SH0699 tester is designed and manufactured in strict accordance with the Chinese petrochemical industry standard SH/T 0699 (Refrigeration Oil and Refrigerant Compatibility). It performs three testing types: oil–refrigerant compatibility, oil–oil compatibility, and refrigerant–refrigerant compatibility.
The instrument uses a double-layer vacuum glass cold bath with an imported cascade refrigeration compressor, reaching +30℃ to -70℃ with ±0.5℃ control accuracy — covering the low-temperature range required for two-phase separation observation.
| Item | Specification |
|---|---|
| Applicable standard | SH/T 0699 |
| Working power supply | AC220V ±10%, 50Hz |
| Working cold bath | Double-layer vacuum glass bath |
| Cold bath temperature control | +30℃ ～ -70℃ |
| Temperature control accuracy | ±0.5℃ |
| Refrigeration system | Imported cascade refrigeration compressor |
| Cooling bath container | Dewar flask |
| Working pressure | up to 1.5 MPa |
| Relative humidity | ≤85% |
| Total power | approx. 1500 W |
| Dimension (L×W×H) | 720 × 450 × 620 mm |
| Net weight | 72 kg |
Note: Instrument appearance, dimensions and weight are for reference only. Specifications may be updated slightly without prior notice.
| No. | Item | Qty | Unit |
|---|---|---|---|
| 1 | Refrigeration oil & refrigerant compatibility tester (main unit) | 1 | Unit |
| 2 | Test tube and protective tube | 1 | Set |
| 3 | Pressure hose | 1 | Piece |
| 4 | Glass thermometer | 1 | Piece |
| 5 | PT100 sensor | 1 | Piece |
| 6 | Power connection cable (220V, 6A) | 1 | Piece |
| 7 | Operation instruction manual | 1 | Copy |
| 8 | Packing list | 1 | Copy |
| 9 | Certificate of conformity & warranty card | 1 | Copy |
Issued by Shandong Shengtai Instrument Co., Ltd.
A: It follows the Chinese petrochemical industry standard SH/T 0699 for refrigeration oil and refrigerant compatibility testing.
A: Three types — refrigeration oil vs refrigerant, refrigeration oil vs refrigeration oil, and refrigerant vs refrigerant.
A: Adjustable from +30℃ down to -70℃, with ±0.5℃ temperature control accuracy.
A: Through a pressure-resistant hose connected to a transparent test tube with a protective cylinder, so the refrigerant collection pipeline stays fully visible; the gauge unit is fitted with a safety valve and supports working pressure up to 1.5 MPa.
CTA: Contact our engineering team for the full datasheet, quotation or application consultation for the SH/T 0699 refrigeration oil compatibility tester.
