1. Introduction to BOG compressor
BOG (Boil-Off Gas) compressors are primarily used in liquefied natural gas (LNG) vessels and storage facilities to compress gasified natural gas generated by temperature changes or tank evaporation back into pipelines or recovery systems.
BOG Compressor Features:
High efficiency and low vibration design, suitable for long-term continuous operation
Capable of handling cryogenic gases and keeping system pressure stable
Equipped with a multi-stage compression system and safety protection devices
During the operation of BOG compressors, a large number of flexible connections are required to ensure safe lines and reliable pressure transfer. PH149 R8 series hose is one of the commonly used standard hoses, mainly used to connect compressor inlet, outlet and cooling system pipelines to ensure the safety and stability of high-pressure and low-temperature gas transportation.
2. Characteristics of PH149 R8 series hoses
The PH149 R8 series hose is a flexible fitting designed for high-pressure gas conveying with the following features:
1. High pressure resistant design
The R8 reinforcement layer features a multi-layer wire braided structure that can withstand the high pressure gas at the outlet of the BOG compressor and the pressure level can meet the requirements of industry standards.
2. Excellent low temperature resistance
The inner adhesive layer is made of low-temperature elastic material, which can maintain flexibility in the low-temperature environment of LNG and is not easy to crack or brittle
3. High corrosion resistance
The outer rubber layer is made of chemically resistant material to prevent hose aging caused by cryogenic gases and environmental factors.
4. Long life and reliability
The high-precision crimping process ensures a tight seal between the hose and the fitting, reducing the risk of leakage and improving the safety of system operation.
5. Flexibility and ease of installation
It adapts to the arrangement of compressor pipelines, and can be bent and installed in a limited space to reduce pipeline stress.
3. Reasons for BOG compressors to use PH149 R8 hoses
BOG compressors operate with large gas pressure fluctuations, low temperatures, and are very sensitive to leakage and vibration, so pipe connections must have the following properties:
1. High pressure tolerance
The compressor discharges the boil-off gas at a high pressure, and the PH149 R8 series hoses can withstand long-term high-pressure operation without breaking.
2. Low temperature flexibility
LNG evaporation gas temperatures are extremely low, and ordinary rubber or plastic hoses are prone to embrittlement, while PH149 R8 inner rubber material is designed for low temperatures.
3. Vibration and fatigue resistance
Compressor operation generates vibration and pulse pressure, and hose reinforcements and crimping fittings ensure long-term stable system operation.
4. Reliable sealing
Prevent boil-off gas leakage, keep your vessel or tank safe, and meet international maritime and environmental requirements.
4. Summary
As an important connection component of BOG compressors, PH149 R8 series hoses ensure the safe, stable and long-term reliable operation of compressor systems due to their high pressure, low temperature resistance, corrosion resistance and flexibility.
Whether it is a marine LNG BOG system or a tank recovery system, the KUNGFLEX PH149 R8 series hose provides reliable support for high-pressure and low-temperature gas transfer and is an indispensable standard hose in compressor line design.
