Flanged check valve for water. Flanged Check Valve

The company "PASADOR" offers to buy check valves various modifications at attractive prices. We supply products to all regions of Russia.

Pipe fittings of this type are used to prevent the reverse movement of the working medium (water hammer or back pressure). Our range includes threaded, flanged and wafer products designed for industrial and domestic applications and designed for long term services.

The advantages of check valves are:

• automatic operation without additional energy consumption;
• reliability;
• performance of functions both in normal and emergency operating conditions;
• no significant impact on throughput pipeline.
• valve opening at a minimum pressure of 0.5 bar (gravity).
  

You can buy check valves from us for domestic and process water supply systems, heating, steam systems, oil and chemical industry, sewerage at reasonable prices. Products can be used in pipelines for transportation of non-corrosive liquids and gases.

The catalog contains check valves with threaded, flanged and wafer mounting in cast iron, carbon and of stainless steel, brass, bronze. Most models are designed for horizontal and vertical installation.

The design consists of a body and a shutter, the mechanism of which is a spool. In the absence of flow, this type of valve is in the closed state. Under the influence of a moving working medium, the shutter automatically opens and closes when it stops. The spool only opens in one direction, so no reverse flow is possible.

Types of check valves

We offer ball and straight check valves with various types mounts.

Conventional feed-through models are designed for horizontal mounting only. Ball check valves can be installed in a horizontal and vertical position, as they use a ball element as a shutter. These types of fittings are available with threaded and flange mounting.

Wafer type check valves are installed in flanged pipe breaks. They can be mounted in vertical and horizontal position. A flat disk is used as a shutter. Designs with double-leaf gates are equipped with damping elements to successfully resist water hammer.

Ball check valve type 012F (flanged, cast iron body)

Ball check valve is another type of Dendor Valve Industrial check valve.

The check ball valve for protecting the pipeline from the backflow of the working medium is also called the "check valve for sewage". The backflow restrictor is a steel ball coated with protective layer. It is used in a wide variety of industries - but most wide application he got into sewer installations.

The sewer check valve is installed in both horizontal and vertical positions. In a vertical position, the flow must be directed exclusively from the bottom up. The check ball valve is attached to the pipeline using flanges. For correct operation valve, the direction of flow of the medium must match the direction indicated on the valve.

Ball check valve

Ball check valve- view pipe fittings, providing a one-way flow of working media in various engineering systems. Due to its special design, such a valve allows the medium to pass in one direction and prevents its reverse movement. This principle of operation allows you to secure systems operating under pressure. Installation of ball valves is most in demand in systems of hot and cold water supply, water disposal, water treatment. They are also indispensable in the arrangement of storm drains and sewer systems.

Features of design and use

Frame this product made of cast iron treated with epoxy powder coating. Other structural advantages of the check ball valve include:

• the locking element is made in the form of a steel ball, on the surface of which an elastomeric coating is applied;
• for ease of installation of the valve, an arrow is marked on its body according to the direction of movement of the flow of the working medium;
• the product is equipped with a cover that allows you to inspect and repair it without dismantling it from the pipeline.

Flanged Ball Check Valve can be installed in a horizontal and vertical position, included in the system using flange connections.

You can buy a high quality ball check valve from us by placing an order on the website or by contacting us by phone.

The check valve is a protective fitting that is installed on the pipeline. The main task of the part is to prevent the reverse flow of the substance in the event that the pump is turned off or fails, the pipeline breaks. Simply put, the valve is a fuse that activates automatically.

What is the feature of the check valve?

An element such as a check valve protects pipelines, equipment and the pumps themselves during an emergency. At the same time, the valve is used to combine the activities of several pumps into one line. The main task of the valve in this case- protect devices from excessive pressure.

The mechanism of the device is simple. If there is no flow of the working medium, the flap is in the closed position under the influence of its own weight. If the working medium moves through the pipeline, then under its weight the seat opens. But as soon as the substance changes direction, the flap returns to its original position.

All check valves fall into two categories:

• check valves are made of steel and cast iron. The main areas of application are water supply and heat supply systems, water distribution and pumping stations. There are rotary, lifting, spring, coupling and reverse;
• check valves - the shutter is made in the form of a disk.

Return products are most often mounted on horizontal sections of pipelines.

Five advantages of safety valves:

• simplicity of structure - makes it possible to easily and quickly maintain and repair parts;
• small stroke - to completely block the passage, only 0.25 Dy is required;
• compact dimensions and low weight;
• additional regulatory functions;
• possibility of operation of the pipeline at high operating pressures and with solid pressure drops.

Trade and construction group "Aglant" specializing in the supply of various pipeline fittings and elements in this area offers you one of the indispensable tools to prevent backflow in the pipe and ensure the proper and proper functioning of plumbing, drainage and other systems - flange check valve in a wide range, available in the personal warehouse of our company in Moscow!

Flanged check valve. General characteristics.

All flanged check valves during design and production, they are regulated by the standards of GOST standards common to all such elements, according to which the nominal working pressure for products, the body of which is made by stamping or casting from gray cast iron, is in the range from 0.63 to 1.6 (6, 3-16) Ru, MPa (kgf/cm2), for ductile iron from 1.6 to 4 (16-40) Ru, MPa (kgf/cm2), and for steel from 6.3-32 (63-320) Ru, MPa (kgf/cm2). There are two types of construction flanged check valves– angular and straight, on the outside of the bodies there is an arrow of the direction of flow, it is most important to make correct installation devices initially, according to this pointer. Installation flanged valve possible in any position, both horizontal and vertical, however, the first method is preferable, due to the fact that in a vertical position, liquid can accumulate above its valve in the pipe cavity and adversely affect its subsequent operation. General building dimensions, in particular diameters flanged valve with flange connection from 10 mm to 400 mm. The locking element can be ball type, and in the form of a damper, which are initially in the open position with the help of a special spring and actuated under the action of their own weight or minimal pressure drops in the channel, from 0.03 MPa.

Steel flanged valves are not subject to corrosion over time, as they are made of stainless steel, and cast iron flanged valves for resistance to a variety of wet environments and adverse conditions operation, they are coated on the outside with a protective epoxy paint.

Scope of flanged valves.

For installation in industrial and requiring less Maintenance, on large diameters of pipelines and on increased ranges temperature conditions flange check valve most suitable for living conditions such flanged valves hardly meet, due to their size and purpose. Models for work with aggressive media, acid, salt solutions and oil products are equipped with additional sealing gaskets, lining for use with sea ​​water or drinking separately.

Buy a flanged check valve at a bargain price from us!

Our qualified sales specialists are ready to advise clients and help to choose the right model for the project. flanged valve, or its closest analogue, contact us by any of the methods presented - feedback form, phone or by e-mail. We provide free delivery in Moscow and the region, as well as ship orders to terminals transport companies other regions of Russia and the CIS: Yekaterinburg, Ufa, Nizhny Novgorod, Samara, Krasnodar, the Republic of Crimea, Rostov-on-Don, Chelyabinsk, Kazan and the Far East.