Power seals are the most reliable and effective sealing device, which, in addition to the control, also has a locking function. They are actively used in the sealing of warehouses, storages, meter counters, tanks, vans, rail, sea and air containers.
The use of power seals that can withstand a power load of up to 2 tons per cm can be found in almost any field. In order to finally understand their classification, it is necessary to familiarize yourself with the main types of power locking and sealing devices.
Power ZPU cable type.
They are made of especially durable types of steel and consist of a body with a lock part and a galvanizing metal cable, the flexibility and convenient length of which allows you to seal and seal objects with incompatible holes. An additional increase in the safety level is made possible by covering the locking mechanism with a plastic shell resistant to impacts with high fire-fighting characteristics. For those who buy , this option is considered the most acceptable, since even the excesses of the cable between the locks are protected by special protrusions, and the device itself can withstand strong temperature fluctuations in the range from -60 to +60 ° .
Power seals twist.
Devices having a special stopper with a handle that is twisted to close the lock, after which the stopper handle breaks off. Most often installed to protect switchboards and electricity meters, containers and storage rooms.
Tape-type metal indicator seals
Due to their high resistance to unauthorized opening, they are widely used in the transportation of goods, as well as for sealing storage facilities. The main difference is a plastic insert in the lock and a fixed locking tape. Like many have a 7-digit security code.
Bolt-type locking devices.
Two-component power structure, to prevent corrosion coated with plastic ABC. Power seals of this type are intended for single use, they contain a digital code and are installed manually, and are removed using a bolt cutter. This type of zpu is best suited for sealing containers, warehouses and other guarded objects with a diameter of sealing eyes from 10.5 to 21.5 mm.
There are also many varieties of seals related to the described groups. All these products differ from each other by the length of the cable or the quality of the metal, as well as by the plastic coating that protects the cpu from mechanical, chemical and thermal effects.