Pull off valve - safety pull off valve - lower loading arm pull off valve - fixed loading system pull off valve
English: Nottrennkupplungen split coupling
Model: HGLDF-16P HGLDF-25P HGLDF-40P
Overview of safety pull off valve:
The safety pull off valve (emergency release device) can prevent leakage accidents caused by accidental tensile fracture of the crane pipe and hose. Its application fields include ship to shore unloading, tank loading and unloading of roads and railways, and other fixed and mobile fluid storage devices, such as the connection between the crane pipe, fluid conveying arm and transport carrier.
Working principle of pull off valve of quantitative loading system:
The pull off valve of the quantitative loading system ensures the safety of fluid transportation to a large extent in the marine and land crane pipes. Through a simple and unique design, when the tension of the crane tube exceeds the bearing capacity of the bolt of the emergency pull off valve, the split coupling is disconnected at both ends of the crane tube, and the built-in check valve automatically closes to prevent leakage.
Basic features of fuel dispenser pull off valve:
1. Enable the equipment to automatically and quickly disengage;
2. The two parts can be effectively sealed after separation;
3. The breaking force is stable, easy to repair, requires manual reset and can be used repeatedly.
Function of lower loading arm pull off valve:
The advantages of the lower loading arm pull off valve are that it can be triggered, the valve can be closed instantaneously, there is little leakage and relatively small pressure loss in case of danger. The breaking mechanism shall ensure that the equipment can be automatically and quickly disengaged in case of "emergency disengagement"; It is also necessary to ensure that there is a "buffer period" before separation, so as to avoid "separation" during routine operation, which will affect normal loading and unloading operations.
Installation diagram of emergency pull off valve:
The emergency pull off valve is installed on the loading and unloading hose or equipment of chemical raw materials (such as liquid propane, ammonia, ethylene oxide, liquefied petroleum gas LPG, butadiene, industrial methanol, natural gas LNG, etc.). Due to misoperation or sliding, the emergency pull off valve will leave the work area without being separated from the hose (or equipment), Breaking the connecting pipe caused a large amount of leakage of raw materials, leading to a major safety accident; Or the tanker is being loaded and unloaded. If the tanker needs to escape from the site quickly due to sudden fire and other reasons, the tanker cannot be separated from the loading arm by normal methods, which will also lead to major personal and property safety accidents, resulting in economic losses and environmental pollution. In order to prevent accidents and reduce accident losses, the loading and unloading equipment is equipped with emergency release pull off valve, which is a major measure to ensure safety and environmental protection during the storage and transportation of raw materials. Under normal working conditions, when under a certain tension, the emergency release pull off valve will automatically and safely disconnect, and both ends will automatically close, without fluid leakage, to protect the safety of pipelines and equipment.
