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Underground ball valves with extended stem. Plastic ball valves - basic information Prices for HDPE ball valves

Design feature ball valves is to use ball support bearings (ball in trunnions). This design makes it possible to reduce the moment when opening a polyethylene ball valve at large pressure drops in gas distribution and water supply systems. When using a rod extension, it is possible to install the ball valve in the ground without a well; also, for a non-well installation, a carpet and a support plate under the carpet are used to provide access to the valve control on the surface.

Ball valves are not inferior in characteristics and quality to metal ball valves, and in some characteristics they surpass them. Polyethylene ball valves manufacturers Polyvalve - Andronaco, Polytec, Frialen, Georg Fischer (+GF+), Daeyoun, FOX.

PE ball valves are different high quality, excellent characteristics and performance indicators.You can buy HDPE ball valves by contacting our company; polyethylene ball valves are always available in our warehouse. We offer to buy ball valves from different (European and Korean) manufacturers at low prices.

HDPE ball valves

Competitive advantages of PE ball valves.

• Passed certification "GAZSERT"
• HDPE ball valves comply international standards
• Underground, well-free installation in the ground of PE ball valves
• Opening/closing 1/4 turn
• Polyethylene taps are not subject to corrosion
• There are modifications of PE taps with purge
• Coupling and electric welded (reducing) connection
• Safety of HDPE materials
• No repairs are required for the entire service life of the HDPE pipeline
• Warranty period 2 years

  Ball valves made of polyethylene PE100 SDR11, the best offer on the market of ball valves for gas distribution and water supply systems. We ship HDPE ball valves and extension rods for them to all regions of Russia and the CIS countries.

PE ball valves have all the necessary documents

Prices for HDPE ball valves

* The price for PE ball valves is indicated including VAT at the Central Bank exchange rate as of 04/01/2017. on special terms of purchase. In accordance with the company's commercial policy, the selling price may vary. Accurate price calculations for HDPE ball valves are made based on the client’s application and are reflected in the invoice for payment. This is not a public offer.

*** Terms free shipping HDPE ball valves: delivery is carried out to the transport company terminal closest to the customer, with 100% prepayment of the cost of ordering HDPE ball valves in the amount of over 100,000 (one hundred thousand) rubles. The MOVE company reserves the right to select a transport company. Delivery times and procedures are discussed separately. The terms of free delivery apply to transportation up to 3000 km, for transportation over 3000 km. MOVE company reserves the right to partially compensate the customer for the cost of transportation.

For questions regarding cooperation and additional discounts, please contact the company.

You can buy PE ball valves from our company at the most favorable conditions, every client is important to us!

Components of HDPE ball valves.

Stocks

Ball valves

Today, in the infrastructure of every settlement - small, medium or, conversely, large - there are a huge number of pipelines for various purposes. The use of polymer pipes for the installation of water supply and gas networks significantly simplifies the maintenance of the entire system and its individual sections, and also increases their service life. To regulate the media flow and control the efficiency of the system in underground polymer networks, fittings made of appropriate materials are used - PE ball valves.

The convenience of using this type of fittings lies in the fact that its installation is carried out using a well-free method. To install a ball valve on a network, it is not necessary to equip a well; after installation on the network, it is enough to fill the valve with soil, bringing the control mechanism to the surface. These products are currently produced by many companies, both domestic and foreign, and their use is justified. The use of polyethylene ball valves allows you to quickly solve various technical problems, ensuring reliable shutoff of the flow of the medium flowing through the pipeline.

Laying of underground pipelines is carried out on different depths, however, in the Russian climate, many networks require pipes to be located quite deep - below the freezing point. Due to the peculiarities of network installation, the issue of ease of access to the fittings installed on the network arises. Every polyethylene (HDPE) ball valve must be controllable at all times, regardless of its installation depth.

For this purpose, various types of control devices are used, in particular, rods and spindles of fixed and telescopic length, which are brought to the surface and serve to control pipeline equipment and its preventive maintenance.

In addition to facilitating device management underground laying, spindles and rods extend their service life, since they take on part of the driving load on the opening-closing mechanism. For the safety of the device and control mechanisms, it is customary to place the ball valve under the carpet. Installation of cranes under carpets is used in cases where the areas where the fittings are located are under the roadway or in other dangerous conditions. As protective agent Hatches are also used for underground installation fittings. Unlike carpets, hatches are located flush with the surface of the ground or road surface.

The use of a polyethylene crane in an underground design has a number of advantages compared to other types of fittings. First of all, the PE (HDPE) ball valve is compact in size and easy to control. Its installation on the network is carried out by butt or electrofusion welding.

To speed up and facilitate the installation of taps on the network, taps are produced with built-in metal embedded heaters. During the welding process, they melt polyethylene and connect the fittings to the pipes. Many manufacturers also equip their products with welding indicators - special marks that simplify the work of welding operators.

Today HDPE ball valves for polymer networks can have different design. Products made entirely of polyethylene are in great demand. They are distinguished by strength, durability, complete resistance to corrosion, and the material used allows them to maintain elasticity, which makes them resistant to mechanical stress.

A polyethylene shut-off valve with a ball valve has several basic elements in its design - the body and the ball valve itself. The spherical valve has a hole of a certain diameter through which, in the open position of the device, the transported medium freely passes.

Shut-off ball fittings can be full bore or part bore. The first option is more common: for such valves the diameter of the nominal diameter coincides with the diameter of the internal passage of the pipe. Full bore polyethylene ball valves are more efficient because they do not reduce bandwidth networks.

In order to close the tap, it is necessary to rotate the control mechanism - handle, spindle, rod, lever - by 90 degrees. The shutter turns and blocks the media flow. To ensure that the structure is completely sealed when closed, the ball valve and control mechanism have seals in the form of plugs, gaskets and rings. In addition, in its design, the PE faucet can use pressing disc springs for additional fixation of the valve.

The use of ball valves on polymer networks is profitable and convenient. Most products are made of polyethylene low pressure grades PE 100 and PE 80. This is a durable material that adheres well to polymer pipes during the welding process. In addition, the polyethylene underground crane compares favorably with metal gates and gate valves - it is easier to operate and weighs significantly less.

Light weight has a lot of advantages: ease of transportation, ease of installation, insignificant loads on the pipeline.

Installing the device on the network plastic pipes small diameters does not require the use of additional supports and fixation, unlike cranes with metal elements in the design.

Polyethylene is resistant to electrochemical corrosion, which is especially important for fittings on gas pipeline networks. The material resists corrosion well and withstands aggressive soils. A polyethylene ball valve installed on a water supply network retains its performance characteristics for a long time.

Average term The operating life of the device ranges from 15 to 25 years, while all maintenance consists of opening and closing the shutter once every year.

The internal parts of the device are not subject to the formation of lime deposits and sediments. Polyethylene shut-off valves can be used in networks drinking water supply, as it complies with accepted hygienic and sanitary standards and parameters. The use of polyethylene ball valves on most gas and water supply networks allows you to save money on the installation and arrangement of the network, while maintaining its efficiency and operational safety.

The Hermes LLC company is the exclusive representative of the Daeyoun plant and supplies SDR11 polyethylene ball valves from this manufacturer to Russia, as well as telescopic extensions for them.

General characteristics polyethylene ball valves:

• A ball valve of the DEEN brand (Dayoun) is designed to control the flow of a medium (open/close) through a pipeline by turning the shut-off element 90 degrees.
• Temperature range From -29 to 600C
• Fully plastic construction, providing maximum corrosion resistance. The ovality of the ball does not exceed 30㎛.
• The crane is completely made of HDPE by welding without the use of any adapters for other materials or flange connections.
• The presence of a support bearing in the center of the bottom ensures smooth sliding of the ball inside the valve (the ball does not shift).
• The presence of a special anti-freeze lubricant on the ball.
• The presence of three sealing rings installed between the bearing and the housing, which increase the level of tightness.
• The presence of an O-ring installed between the adapter and the body prevents soil and dust from entering the inside of the tap.
• The presence of a pin between the adapter and the bearing securely fixes the valve ball during its opening and closing.
• Opening/closing with 1/4 turn. If the taps are equipped mechanical gearbox 2 ½ turns.
• The length of the pipe is designed for two welds.
• No faucet required maintenance and is controlled by a rod.
• The adapter is made of injection molded polypropylene. There is a locking device at the bottom of the adapter that prevents rotation beyond 90°. An O-ring is inserted inside the adapter to prevent foreign particles from entering.
• No corrosion protection measures are required.
• There is no need to install any protective chamber or well around the tap; it can be buried with the same material as the rest of the pipeline.
• Production is certified according to ISO 9001 and JIS Q 9001 standards.
• Wide range of product sizes (from 20 mm to 400 mm).
• Warranty period 2 years.
• Guaranteed shelf life (provided the original packaging remains sealed) is 10 years.
• Controlled using a telescopic rod.

Technical characteristics of polyethylene ball valves:

	Type and application	Underground installation (for gas 10 bar/water supply 16 bar)
	Material	PE80/PE100, PE2406/PE3408
	Opening/closing	¼ turn
	Temperature	From -29 to 600С
	Passage type	Full bore
	Auxiliary rod type	Telescopic extension
	Purge type	No purges, 1 purge, 2 purges
	Welding of body and socket	Electric welding or coupling
	Test standards	EN 1555, ANSI/ASTM B16. 40

Design of polyethylene ball valves:

Dimensional and mass characteristics of polyethylene ball valves:

Standard PE ball valves	ISO Diameter (mm)
	315 (Full bore)

PE ball valves without purge (ISO)	ISO Diameter (mm)	Note
		With mechanical gearbox
	315 (Full bore)

PE single blow ball valves (ISO)	ISO Diameter (mm)	Note
		Without mechanical gear
		With mechanical gearbox
	315 (Full bore)

Type Standard (NPC)
		Full bore polyethylene ball valves for gas made of PE 100 (PE 100) with a nominal cross-section: 25/32-200/225 mm. PN 10, SDR 11	DN, mm	Weight, kg/piece	Construction length, mm

All-welded ball valves with extended stem- shut-off valves intended for underground pipelines. Underground cranes balls are made with nominal diameter passage (DN) from 15 to 500 with a rod outlet under the carpet and the possibility of extending the rod from 1,000 to 4,500 mm, designed for working pressure(PN) 16 and 25.

Underground installation method main pipelines today it is considered one of the most appropriate. However, it requires the use special type shut-off valves, and the most suitable for these purposes are ball valves for underground installation with extended stem.

These products have small overall dimensions and weight, body design underground ball valves excludes any contact internal parts cranes with soil. Most often used for underground installation all-welded ball valves to minimize leaks working environment through the valve body. Main type of connection to the pipeline cranes underground execution with extended stem- for welding, which ensures maximum tightness and durability of the connection.

In order to protect the cranes from mechanical damage and soil exposure, additional protective coating ball valve bodies. Coverage happens various types- FRUSIS, BIURS.

For the purpose of management underground ball valves their design includes rod extensions that connect the ball to a control located above the ground.

The height of the rod extension can be any according to customer requirements. There are extension cords standard length from 1000 to 4500 mm, as well as adjustable height, so-called telescopic rods.

For management underground cranes pneumatic or pneumatic-hydraulic actuators are used. The drives are controlled by the transported medium.