Часто задаваемые вопросы

The abbreviations HLP and HVLP originate from the German standard DIN 51524 and are currently the accepted standard for oil designations in the international market. Let's take a closer look at what these letters represent:

H - Hydraulic oil
V - High viscosity index
L - Contains anti-corrosion and antioxidant additives
P - Anti-wear additives

Thus, the difference between HLP and HVLP oils lies in their different viscosity indexes and, consequently, operating temperature ranges (the higher the viscosity index, the wider the operating temperature range of the oil).

这些产品首先因应用领域不同而有所区别。

Gidrotec HLP/HVLP系列产品是为现代设备和移动机械运行而开发的高端油品，拥有最广泛的认证范围。

Gidrotec OE系列产品是专为磨损程度较高（保修期后）的进口和国产工业设备运行而开发的油品。该油品含有荧光指示剂，可快速检测泄漏位置，并含有密封调节剂，有助于提高密封性能。

Gidrotec WR系列产品是专为在高机械和热负荷以及严重进水条件下运行的进口和国产设备开发的油品。

Gidrotec LT系列产品是专为在寒冷气候条件下运行的进口和国产机械开发的油品。

Gidrotec FireSafe HFDU系列产品是现代化合成防火液压油。它以复合有机酯为基础，并添加了高效的添加剂包。该产品应用于玻璃、采矿和冶金行业的液压系统，可显著降低火灾风险。

The pour point is not an operational indicator. This parameter was created to provide information about the storage, transportation, and repackaging of oils. The operational indicators for oils operating at sub-zero temperatures are:

A. Kinematic viscosity at a specific negative temperature (most often this parameter is limited by hydraulic equipment manufacturers). This indicator determines the viscosity level at which hydraulic equipment can be started at a given temperature. B. Dynamic viscosity at a specific negative temperature (also most often limited by the hydraulic equipment manufacturer). This indicator determines how the oil performs at a specific negative temperature.