Ammonia refrigeration system (NH3)

Sabroe, York, Stal SAB 83, SVA26E, ARLEX ND

Sabroe / York / Stal Ammonia Refrigeration Plant (NH3)

General specifications of the set:
Main brands: Sabroe, York, Stal, Arctos

Refrigerant: R717 / NH3 (Ammonia)

Description: Complete, high-capacity industrial refrigeration installation, comprised of multiple integrated modules.

The complete line includes:

1. Screw Compressors:
- Sabroe SAB 83 (2004): Volumetric capacity 1603 m³/h, rotational speed 3600 rpm, dimensions: 3900 x 1250 x 2150 mm.

- York Refrigeration SAB 83 (2001): Volumetric capacity 1331 m³/h, speed 2950 rpm, dimensions: 3150 x 1300 x 1600 mm. Set includes a pressure vessel 675 l (800 x 800 x 2150 mm).

- ABB Stal Refrigeration S26B (1994): Dimensions 1550 x 1450 x 2400 mm.

- Stal Refrigeration AB SVA26E (1991): Compressor type S26A-25, capacity 700 m³/h, dimensions: 1600 x 1000 x 2420 mm.

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2. Separator Vessels and Pumping Stations:

- Stal-Astra NH3 Separator (1991): Insulated, capacity 4300 l, dimensions: 4100 x 1400 x 1400 mm, equipped with ammonia pumps.

- Stal-Astra NH3 Separator (1991): Insulated, capacity 3000 l, dimensions: 4100 x 1100 x 1100 mm, equipped with ammonia pumps.

3. Auxiliary Equipment and Control Systems:

- Arctos ARLEX ND Degasser (2018): Modern module supporting the efficiency and safety of R717 operation, dimensions: 570 x 400 x 1100 mm.

- Main Control Cabinet: Extended central unit, length 4.8 m, equipped with modern Siemens touchscreen HMI, dimensions: 4800 x 630 x 2200 mm.

- Rittal Control Cabinet: Equipped with a WEG frequency inverter, dimensions: 1000 x 600 x 2280 mm.

This high-capacity refrigeration installation combines proven, high-performance screw compressors from leading manufacturers. The inclusion of large, insulated separator tanks with integrated pumps guarantees adequate power reserve and operational stability for ammonia cycles. Despite the varying ages of individual components (1991–2018), the system operates as an integrated whole, managed by an advanced central unit featuring solutions from Siemens and WEG.

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