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Hangzhou Gulun Refrigeration Equipment Co. Ltd. manufactures the 2CS500 BFS51 displacement compressor in Zhejiang Province, China. The unit delivers 3.75 kW of power, weighs 96 kg and features a piston‑type structure with aluminium pistons to reduce friction. It operates at a nominal speed of 1450 rpm and is compatible with refrigerants R22 and R502.
Typical compressors of this class provide oil injection volumes around 1.8 L and incorporate internal electrical protection modules, external pressure differential switches and crankcase heaters. Standard dimensions for similar models are roughly 583 mm × 282 mm × 365 mm (without fan) and an interface panel of 355 mm × 230 mm. Industry practice includes a discharge tube of about 20 mm and a suction tube near 25 mm, matching the values listed for this product.
The machine is aimed at chemical processing, mineral handling, large‑scale test environments, cold rooms, food processing and aquatic product processing. Its refrigeration capacity ranges from 6 kW at - 20 °C to 11.8 kW at - 5 °C, making it suitable for a variety of low‑temperature applications. Buyers should confirm lead time, packaging details and payment terms directly with the supplier before finalising the order.
| Model | 2CS500 BFS51 |
| Power (kW) | 3.75 |
| Weight (kg) | 96 |
| Structure type | Piston |
| Product type | Displacement compressor |
| Nominal speed (rpm) | 1450 |
| Discharge tube (mm) | 19.5 |
| Suction tube (mm) | 25 |
| Oil injection volume (L) | 1.85 |
| Interface dimension (mm) | 355 × 230 |
| Overall dimension (mm) | 583 × 282 × 365/395 |
| Refrigeration capacity at - 20 °C (W) | 6060 |
| Refrigeration capacity at - 15 °C (W) | 7620 |
| Refrigeration capacity at - 10 °C (W) | 9600 |
| Refrigeration capacity at - 5 °C (W) | 11800 |
| Typical voltage | Typical 380 V three‑phase |
| Typical pressure rating | Typical 8‑10 bar |
| Typical noise level | Typical <70 dB(A) |
| Typical packaging | Standard wooden crate with internal foam padding |
| Typical warranty period | Typical 12 months |
Hangzhou Gulun Refrigeration Equipment Co. Ltd. is registered in Hangzhou, Zhejiang Province, China, at Zhenhua Road 206, West Lake District. The company is classified as an imported‑tier supplier with a harbour trust level, and its public profile shows a response rate of 0 % and no average response time recorded.
The firm specialises in refrigeration and compression equipment for industrial applications, offering a range of piston‑type displacement compressors. While the listing does not disclose specific certifications or production capacity, it notes that the compressor complies with internal electrical protection standards and can operate with refrigerants R22 and R502.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Importers should first verify the supplier’s business licence, export certifications and any applicable Chinese environmental regulations for refrigerant equipment. Request the full product data sheet, motor nameplate details and a copy of the oil‑type certification to ensure compliance with your target market’s standards.
Discuss shipping arrangements early: ask the supplier which Incoterms they can provide, typical lead times from factory to the nearest Chinese port, and whether they can organise container loading. Clarify acceptable payment methods, such as a confirmed irrevocable letter of credit, and any required advance deposit given the zero‑response profile.
Plan for quality assurance by arranging a pre‑shipment inspection that includes visual checks, dimensional verification and functional testing of the compressor under load. Obtain a test report for refrigerant compatibility, oil injection performance and noise level, and consider employing a third‑party inspection agency to certify that the unit meets the listed specifications before it departs the factory.
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