YBF6F-20.2DS Low Temperature 30 HP Two-Stage Compressor

Technical Parameter

Blait delivers industrial-grade refrigeration solutions with the YBF6F-20.2DS compressor. Designed for extreme cold environments, this two-stage unit ensures stable operation at evaporating temperatures as low as -70°C.

Core Specifications
Rated power: 20 HP (15 kW).
Air delivery capacity: 73.6 m³/h (low pressure), 36.9 m³/h (high pressure).
Operates on R22, R404A, and R507A refrigerants. Compatible with 380-480V/3-phase/50-60Hz power supply.

Performance Highlights
Maintains cooling capacities from 35.5 kW to 4.23 kW (R22/R507A) across -70°C to 30°C evaporating/condensing ranges. Forced lubrication system ensures minimal wear under heavy loads.

Structural Features
6-cylinder configuration (φ70/70x55.0 mm) with magnetic screw oil filtration. Includes crankcase heater (140W) to prevent oil viscosity issues in sub-zero startups.

Connection Standardization
SL (42mm) and DL (35mm) gas ports. 16 labeled interfaces for sensors, hydraulic controls, and pressure monitoring. Simplified maintenance via oil fill/drain ports (positions 5-6).

Operational Safety
Max operating current: 37A. Built-in thermal protection via exhaust temperature sensors (position 2). Weight: 220 kg with pre-filled lubricant.

Download dimensional drawings and full performance tables for system integration planning. Contact Blait for refrigerant-specific operating guidelines.

Features of YBF6F-20.2DS Low-Temperature 30 HP Two-Stage Compressor

The Brilliant YBF6F-20.2DS is a dual-stage compressor engineered for low-temperature applications, featuring energy efficiency, extended durability, and adaptability. Designed for industrial refrigeration systems, it supports evaporation temperatures as low as -70°C and integrates modular components for simplified maintenance.

Key Features

1. Dual-Stage Compression

• Two compression phases gradually increase refrigerant pressure.

• Reduces discharge temperature and improves efficiency across diverse operating conditions.

2. Energy-Efficient Design

• High-efficiency valve plates made of shock-resistant spring steel.

• Minimal dead space design and heavy-duty motor configuration.

3. Extended Service Life

• Low-friction piston rods, chrome-plated piston rings, hardened crankshaft.

• Large-capacity oil pump and patented oil return system enhance reliability.

4. Dual Motor Compatibility

• Supports two motor configurations for flexible adaptation to operational demands.

5. Low Noise and Vibration

• Optimized mass balancing in 2/4/6-cylinder models ensures smooth operation.

6. Comprehensive Safety Protections

• Standard: Motor temperature (PTC), exhaust temperature, phase sequence, and oil flow protection.

• Optional: Oil pressure/temperature, high/low pressure, oil level, and motor overload protection.

7. Advanced Lubrication System

• Includes oil filter, flow switch, separator, heater, cooler (optional), and check valve.

• Uses POE 170/150 oil; requires careful handling due to hygroscopic properties.

8. CIC System (Optional)

• Electronic liquid injection reduces exhaust temperature and prevents oil carbonization.

9. Wide Operating Range

• Compatible with refrigerants R22, R404A, and R507A.

• Suitable for evaporator temperatures between -50°C and -70°C.

10. Modular Maintenance Design

• Easy-to-replace components minimize downtime and repair costs.

11. Robust Material Selection

• Shock-resistant spring steel and alloy structural steel ensure component longevity.

  
  

Key Specifications

• Motor Power: 30 HP / 22 kW

• Cylinders: 6 (φ82/82×55.0 mm)

• Displacement: 101.1 m³/h

• Oil Capacity: 4.75 L

• Voltage: 380–420V/50Hz or 440–480V/60Hz

• Lubrication: Forced oil pump

• Weight: 234 kg (with oil)

• Crankcase Heater: 140 W

This compressor combines advanced engineering with user-centric design, making it ideal for demanding low-temperature environments.

Crankcase heater

1.Overview

When the compressor is stopped, different systems and different  refrigerant charge quantities will have a certain amount of refrigerant  dissolved in the crankcase oil. Prevent the oil, liquid strike and reduce  the lubrication performance when starting. Severe damage to the  compressor.

When the machine is shut down, the heater can be used to reduce  the amount of refrigerant in the refrigeration oil to the allowable range.

It is especially necessary to use heaters in the following situations:

★ If the compressor downtime is very long, the temperature in the  crankcase can not reach above the saturated evaporation temperature  16~ 21K 

★ The outside temperature of the compressor is less than 10℃ 

★ The compressor uses the oil pump to supply oil

The following circumstances make it possible to consider not using:

★ The charge of oil in the system is 1.5 to 2 times higher than the  refrigerant charge. 

★ Evacuate the vacuum stop system, outside temperature is greater  than 10 ℃ . 

★ briefly stop and the compressor slowly cools. These exceptions must be carefully verified.

2. Installation instructions

The heater is installed in the blind hole of the casting body at the  bottom of the compressor or in the blind hole of the heater in the  casing. The casing is in the crankcase oil.

Fixed resistance heater, it can also be used an automatic PTC heater.

★ 60W    ★ 100W 

★ 120W    ★ 160W

Electrical connections

Attention!

Prevent the wiring head from getting wet! 

Make sure the lug inlet is down. 

Heater power should be turned on when the compressor is stopped.

Danger!

Must comply with safety regulations when installing. The ground wire  can only be connected to the specified terminal.

Zhejiang Briliant Refrigeration Equipment Co., Ltd. Company Strengths

Zhejiang Briliant Refrigeration Equipment Co., Ltd. demonstrates industry leadership through integrated R&D and production systems, advanced manufacturing technologies, certified quality management, academic collaborations, rigorous testing protocols, and continuous component innovation. Below are expanded details of its core strengths:

1. Integrated R&D & Production System

• Combines design, R&D, manufacturing, and sales operations.

• Operates an R&D center in Hangzhou with 100+ employees, including 24 specialized researchers and engineers.

• Focuses on compressor innovation and process optimization.

  
  

2. Precision Manufacturing Technology

• Maintains dedicated production lines for compressor body machining.

• Uses high-precision CNC equipment to achieve ±0.01mm tolerance levels.

• Ensures consistent product quality through automated assembly processes.

  
  

3. Industry Certifications

• Holds National Industrial Product Production License (XK06-015-00999).

• Certified to ISO9001 (quality), ISO14001 (environmental), and ISO45001 (safety) standards.

• Recognized member of the China Refrigeration Society (CRS).

  
  

4. Academic Partnerships

• Collaborates with Xi'an Jiaotong University on screw rotor profile optimization.

• Implements computational fluid dynamics (CFD) for compressor efficiency testing.

• Shares R&D data to advance refrigeration system designs.

  
  

5. Testing & Calibration Infrastructure

• Operates 12 performance test stations covering -40°C to 50°C operating ranges.

• Uses high-precision imported instruments (e.g., Danfoss sensors) for data collection.

• Validates equipment through China National Institute of Metrology (CNIM) calibration.

  
  

6. Component Innovation Strategy

• Upgrades bearing systems and lubrication technologies every 24 months.

• Conducts 500+ hour endurance tests for reliability validation.

• Extends compressor service life through material science research.

YBF6F-20.2DS Low Temperature 30 HP Two-Stage Compressor with Extension Arms: Frequently Asked Questions

1. What are the key technical specifications?

• Rated power: 30 HP (22.4 kW).

• Operating temperature range: -40°C to 10°C.

• Two-stage compression design for enhanced efficiency in low-temperature environments.

• Extension arms: Standard length 300mm, customizable up to 600mm.

2. Which industries is this compressor designed for?

• Cold storage facilities, frozen food processing, chemical refrigeration, and industrial cooling systems.

• Suitable for applications requiring stable performance in sub-zero environments.

3. How often should maintenance be performed?

• Lubrication checks: Every 500 operating hours.

• Full service (seals, bearings, filters): Annually or every 4,000 hours.

• Extension arms require torque inspection every 3 months.

4. What refrigerants are compatible?

• Designed for R404A, R507A, and ammonia (NH₃).

• Materials comply with ASME B31.5 for corrosion resistance.

5. Does it meet energy efficiency standards?

• Exceeds ISO 1217:2009 displacement compressor efficiency benchmarks.

• Two-stage design reduces energy consumption by 15-20% compared to single-stage models.

6. What warranty and support are provided?

• 24-month limited warranty on compressor body.

• 12-month coverage for extension arms and seals.

• Technical support via email/phone within 4 business hours.

7. How do extension arms improve functionality?

• Reduce vibration transmission by 40% through isolated mounting.

• Allow flexible installation in space-constrained environments.

• Pre-machined bolt holes align with standard compressor frames.