The complete range of Hyva HT tipping valves is based on the pilot operated pressure relief valve design with fixed pressure setting (by means of fixed value cartridges), which protects both the cylinder and the pump from overpressure. These pressure cartridges are fully interchangeable, so the pressure can be adjusted by its replacement in an easy and safe manner. The HT series is also designed to allow proportional lowering which is of great importance when lowering (half) loaded tipper bodies. 完整描述