Butterfly Valves Wafer Type Rotary

mount type and the benefits of butterfly valves

Any pipeline, regardless of the working fluid, which he moves (water, high-pressure steam, oil or gas) must be equipped with shut-off and regulating valves.Butterfly valves can be clearly attributed to the second category.The main task of such devices - in a timely manner to adjust the pressure and flow in piping systems.

Nothing new here is not invented and conventional wafer installation on pipe sections for butterfly valves as well characterized as for shut-off valves in the form of a flanged slide valves .Bolting with seal design provides a number of advantages:

• ease of installation work on the installation of regulating butterfly valves with rotary principle of operation;enough on the flanges and the underwater discharge pipe to install the rubber ring or a metal gasket and pull this assembly bolts;
• wear parts in the correct operation is minimal;if you do not twist it back and forth unnecessarily (yield up to 50 thousand turns) resistant alloyed steel, and the device itself will last for a long time;
• corrosion resistance, which is provided by rotary shutter material (stainless steel, cast iron, at least for small sections of aluminum alloys);
• compactness and minimum structural elements;smaller pieces in such equipment, the higher reliability and durability.

For reference Butterfly Valve (without housing) has only four basic elements: the drive shaft, inner sleeve and the rubber seal.In fact, a large head parts, not only in the mixer, and pipes.

Installation and management Wafer gate

wiring diagram of these devices easy to primitiveness: the mounting holes of the gate equipment flanges are selected under the geometric parameters and dimensions of the flanges bearing pipes and attached to the system by means of connecting pins (bolts).The tightness of the closure assembly of control valves provide a rubber gasket and metal gasket.

The process of flow control systems for domestic absolutely primitive: it wanted to reduce the pressure of the network or completely shut off the flow, simply turn the valve and see the result.The large diameter pipelines without having to install the flywheel and the gearbox and, in some cases, and automatic control systems can not do.

way, for assembly and operation of the rotary wafer locks found some more nice features of this design:

• minimum unit hydraulic resistance in the open state;
• providing limited support zone of contact with the structural elements of valves: at high temperatures and in corrosive environments, this factor is not without significance;
• truck tightness device wafer butterfly valve in the closed position in almost any operating conditions.

Features of butterfly valves

Wafer type butterfly valves for the working diameters of pipelines within the 700-1200 mm should be normalized in accordance with GOST 12821-80, but in practice such products are manufactured according to specifications, and every manufacturerfree to make technological changes in the assortment of its products.On the final quality of valves such anarchy almost no impact, since the main consumers of this equipment does not act, private developers, and municipal utilities and large industrial enterprises.

to our favorite migrants on the nature of report:

1. Setting the input and output of any of your pipeline systems (water supply, heating, sanitation) allows at any time to carry out maintenance and repair work.
2. Operational control head pressure and coolant flow rate using a wafer control valve can save a lot of money.
3. In emergency cases, butterfly valves with high-quality waterproofing saddle triggered no worse than the knife gate valves.

Recommendations : look closely, understand, ask the price and buy.