Shut-off and control ball valves are used in the chemical industry. They also found their application in medicine, perfumery and cosmetic, food, and other industries. They are designed to shut off the flow of fluids in pipelines.
Ball valves are shut-off valves of the pipeline:
- in sewer systems;
- in central heating;
- when transporting oil and gas products.
At the present stage, there are two well-known manufacturers that produce such products: Naval, Vexve.
Naval
The naval valve has a body with one-piece fittings, where the gaskets have additional rings. At the same time, the structure is protected from dirt and thermal influences. These cranes are highly resistant to damage and wear.
The ball plug is made of high strength steel. It is completely sanded and polished.
Positive qualities in using the naval crane are:
- no need for constant care of the product (lubrication and tightening is unnecessary);
- useful life - high;
- cash costs are small;
- structural reliability;
- ease and speed of crane assembly;
- convenience with installation and modernization.
Vexve
Ball valves Vexve valves are used for pumping liquid products through pipelines. They have an all-welded body. This advantage makes it possible to provide a low weight of the crane, while improving operating characteristics. Teflon seals are pressed against the ball using Belleville springs. This ensures that the tap is completely tight. The spindle in the crane is made of high quality steel. The spindle and shut-off ball are made from the same material. This filling makes the vexve crane easy to use, durable and reliable. The spindle is indestructible, it has two rings.
There are several Vexve models:
- on flanges;
- for welding;
- with sleeve connections;
- combined.
The advantage of such a crane is:
- with a special design, the crane does not require maintenance;
- quick and easy assembly;
- operating costs are minimal;
- the ability to quickly shoot and reposition the handle;
- installation of the drive mechanism is possible after installing the crane;
- during installation, the crane can be placed in any convenient position;
- has a different feed direction.
Vexve and Naval cranes are easy to install. They are lightweight and lightweight. They are reliable to use. When the pressure rises or falls, it is leakproof�
