Valtec ball valves: types and specifications

Cork conical structures have long ago given way to more advanced products - ball valves. These products are indispensable for the normal functioning of heating and plumbing systems, and the need for their presence is always great. Valtec is an Italian manufacturer whose products combine high quality, functionality and optimum value.

Ball coupling valve is an important detail, without which it is impossible to provide high-quality service for residential and public utilities. These products often cause user dissatisfaction due to various faults and breakdowns.

The main complaints about this product group are:

• poor sealing due to insufficient sealing of the ball;
• malfunctions of handles and handles due to the lack of adequate strength;
• unsatisfactory treatment of the stock surface, as a result of which the stuffing box wears out very quickly.

Creating their products, Valtec manufacturers took into account not only these nuances, but also adapted their products for the difficult conditions in which heating and water supply in our country work. It is no secret that the workflow is associated with the following factors:

• in spite of the planned renovations, centralized networks suffer from obvious wear and tear, they are characterized by increased contamination by particles such as scale and sand, as well as by bacteria that feed on iron and emit clay and gelatinous deposits;
• Often, the water pressure in the network exceeds the allowable standards, which leads to overloading of valves, the same applies to temperature changes that negatively affect the general condition of ball valves.

Such fittings are demanded by both private users and public organizations, therefore, products of different price categories are required with overall satisfactory quality.

As a result of this assessment of the needs and condition of centralized networks, a modern product has been developed that meets the highest requirements and has a certificate that meets European quality standards:

• it features a fully polished rod;
• anaerobic sealant is used;
• used for the manufacture of brass and Teflon protect the valve from the inside and increase the wear properties of the device.

Perhaps this is the main advantage of the Italian product, and explains its particular popularity in Russia.

The use of ball valves is provided in some cases: they are required when installing water supply, water heating system, when replacing a heating battery, in the case of connecting water meters. It is important to understand the technical parameters of such a product, to know its purpose and the material from which it is made.

Many people are poorly aware of the device of a ball valve, but when it is replaced, such information is necessary. The device details are quite simple: when you open a steel valve in the form of a ball with perforations rotates and gives access to a stream of water or gas. Reverse movement of the handle blocks this movement.

When choosing a part you need to pay attention to the material of the body - it must be brass, without any additives in the form of zinc or aluminum (otherwise it will fail in a year and a half). To understand that this is really brass, you can by more significant weight and light yellowness.

Brass ball valves can vary in many ways:

• by diameter - most often used products with a size of 1/2 or 3/4 inch (in millimeters it is 15, 20, 25), while taps with a diameter of 1 to 2 inches are used much less frequently;
• by type of thread - external and internal; External thread in a professional language is usually called a choke, and internal thread is a nut, and both types of thread can be combined in one piece;
• working pressure, as indicated by the inscription on the PN valve, a pressure indicator is shown next to it in the form of a figure (in atmospheres).

Most brass parts are used to shut off gas and water.If the crane is equipped with a butterfly-shaped handle or a yellow lever, this one serves to shut off the gas, in all other cases the ball devices are related to the water supply (hot or cold).

To better understand the issue, it is worthwhile to assess in detail the quality of valves of different Valtec series.

This type of product has its own design features, which are determined by a rather low degree of resistance at the same time as high throughput.

Technical differences cranes Base:

• lack of pressure on the rod, because the part is inserted into the body;
• Leakage is easily remedied due to the fact that the gland bushing is threaded and the seal is made of Teflon;
• the fastening ring is built into the nut fixing the handle, prevents its loosening when unscrewing;
• the handle is fixed with a nut, and not with a screw, therefore weakened sections are excluded in the rod;
• the life of the rod is increased due to the absence of stretching.

Especially popular products in this series are two models.

1. Full bore ball valve Valtec 1, 2 (butterfly). The product is equipped with external and internal threads, it has a nickel-plated brass body, a bolt ball and a stem are diamond polished, and also nickel and chrome plated. The crane has high tightness and durability.
2. Ball brass faucet Valtec Base 3, 4 - It is a fixture with a brass, nickel-plated body and a steel handle. In addition, the model is covered with a thermal insulation coating of polyvinyl chloride.

Valtec Base VT 227 N ball valve with American is one of the sought-after models in this series.which is used not only for working environments such as gas and water, but also for petroleum products.

You will learn more about Valtec Base cranes by watching the following video.

Models of full bore cranes are made with regard to increased loads. They can work under increased tension, pressure, vibration and other negative effects.Even with poor fixation, such products provide reliable constipation of a liquid or gas.

Features of the series:

• Nickel-plated brass body has a considerable thickness and high heat resistance;
• seat rings and packing seals are made of Teflon, which corresponds to an increased temperature - up to +150 degrees;
• the fixing ring is located inside the structure, it has special strength and is protected from impacts;
• the handle is attached with a nut;
• products can be repaired several times due to a threaded stuffing bush and a teflon seal;
• threaded couplings are elongated, so it is convenient to repair the crane.

Such products as VT 314 N, VT 315 N, VT 318 N and others are used for heating and water supply systems. Their service life reaches 30 years, and the tightness corresponds to class "A", they can be used at temperatures from -20 to +200 degrees, therefore they are in demand for deformed pipes and significant distortions of the pipes.

These are the most affordable products of standard aisle, extremely popular with public utilities.

The main characteristics of the models:

• nickel-plated polished spindle, ensuring long product life;
• the safe handle is supplied with the increased working gap, has a considerable thickness, is covered with a PVC layer;
• robust and durable aluminum thumb grip is distinguished by increased thickness, which prevents malfunctions;
• seals are not susceptible to drying, cracking and swelling from moisture due to the high content of acrylonitrile seals in the rings, which has a positive effect on the resistance of the product to aggressive oils and benzene formulations;
• the nut and handle also have an electroplated coating that makes them immune to aggressive media.

The most common modifications of ball valves Valtec Eco:

• VT 090 with steel handle and internal thread;
• VT 092 with aluminum butterfly handle;
• VT 093 with external and internal thread and aluminum handlebar;
• VT 097 - model with a thumb-handle, made of aluminum, half-bow, and external and internal threads.

All these products are successfully used both for residential communications, and at industrial facilities, as well as pipelines.

A special place is occupied by three-way cranes brand Valtec, their characteristics are similar to the products of Base. Models VT 360 and 361 made of high quality sanitary brass with electroplated coating. The gland and sealing rings are made of Teflon, which increases their heat resistance. Such structures can be used in heating networks, for heating, and for connecting water-heating devices, as they are not afraid of high temperatures.

The Valtec Combi product range is a filter with integrated filter. This solution makes it possible to save free space in small premises. The filter must be replaced if necessary, it is made of high quality stainless steel, so it is not afraid of chlorinated water.

Testimonials about Valtec products are often positive: for many, these fittings work for several years without causing complaints, especially as the cost of some products is more than affordable. The negative opinion of people faced with breakdowns during the first days and weeks of use, as a rule, is associated with a counterfeit goods purchased not from an official representative.