Danfoss flange rotary valve DN 200. Butterfly valve VFY-WH, Danfoss (SYLAX). Features of butterfly valves
The Vorder company is an official dealer of the Danish company Danfoss, specializing in the production of pipeline fittings. IN in this direction The manufacturer has been operating since 1933 and has now gained an excellent reputation both among private buyers and in the professional environment.
Note! Direct cooperation with the Danish factory allows us to maintain optimal prices for all brand products, and also makes it possible to guarantee the original origin of the fittings. It should also be noted a wide range of devices, thanks to which each user can purchase the necessary products. For example, on this page you can buy a butterfly valve with a cast iron or steel disk. The range of fittings includes 20 models, the nominal diameter of which varies from 25 to 350 mm.
Advantages of Danfoss butterfly valves
Pipeline fittings of this brand are widely used in domestic and industrial air conditioning, heating, and water supply systems. Moreover, the working medium can be either hot or cold water or other liquids, for example, glycol solutions. In this case, the maximum temperature in the system can reach 120 ºС, and the pressure varies from 10 to 16 bar. However, the advantages of the devices do not end there. The following advantages deserve special mention:
double seal ensuring maximum tightness;
high maintainability due to the interchangeability of parts;
reliable fixation of the rod using a spring ring;
lack of contact between the housing and the working environment, thereby preventing corrosion and extending the service life of the device.
In addition, it is worth noting the relatively low cost, which is explained by the manufacturer’s loyal pricing policy, as well as direct supplies of fittings to the warehouse of the Vorder company. Using the services of our online store, you can purchase a steel or cast iron butterfly valve at a truly inexpensive price.
Danfoss butterfly valves are used to cut off or regulate the flow of working fluid in heating systems, hot and cold water supply, air conditioning and ventilation, as well as in various installations in the chemical, pharmaceutical and food industries. A disk is used as a locking element in these devices; when rotated, the shutter opens or closes. In the Build Engineering online store you can buy butterfly valves from a trusted manufacturer of engineering equipment. VFY and SYLAX brand valves are available for sale at an affordable price.
Characteristics of Danfoss butterfly valves
The equipment produced by Danfoss has the following characteristics:
- nominal diameter: 25-350 mm (VFY, SYLAX), 400-1200 mm (SYLAX);
- maximum pressure: 10, 16 atmospheres (VFY, SYLAX);
- permissible ambient temperature: -15…+120 °C (VFY, SYLAX).
Butterfly valves are mounted on the pipeline between conventional mating flanges without the use of additional gaskets, since their role is performed by the seat seal. Models are available with centering lugs, double flanges and threaded lugs. Valves with threaded eyes and double flanges can be installed at the end of a pipeline.
The following types of control are used to operate the valves:
- manual (metal handle, gear drive);
- mechanical (pneumatic drive, electric drive).
Features of butterfly valves
All parts of these devices are interchangeable, including axles, discs and seat seals, which reduces costs Maintenance. The rod has a double seal, which ensures high tightness. Anti-friction bearings reduce torques and increase equipment life. The splined connection between the disc and the rod ensures reliable transmission of torque and less wear compared to other types of connections. The self-centering disc guarantees a high degree of tightness and reduces wear on the seat seal.
The availability of different seat seal and disc materials allows the equipment to be used in a variety of environments. The easy-to-disassemble system allows for simple maintenance.
From us you can purchase reliable pipeline fittings at an affordable price with delivery throughout Moscow and regions of the Russian Federation.
Danfoss valve
Danish Danfoss valves are perhaps the most widely used and widespread not only in Europe, but also in the world. Gate type Sylax, produced by Danish giants in factories Socla in France, among them is the absolute leader. Characteristic feature which they can boast Sylax valves is the method of their installation - they are all installed between flanges connecting two sections of the pipeline. Gate fasteners from Danfoss absolutely reliable - in addition to the seat seal extending beyond the edges of the body, the valve is equipped with side guides that allow you to accurately fix the position of the device between the flanges.
By and large in Sylax valves all embodied best ideas from the world's leading manufacturers of shut-off valves for pipelines.
Features and characteristics of Sylax ( Danfoss valves)
High-strength cast iron was chosen as the material for the body and disk, which completely or partially - in most models - blocks the current of the working environment, which is not afraid of corrosion, sudden, ranging from minus 30 to plus 150 degrees, temperature changes and mechanical influences.
The rod on which the models Sylax a rotary disk is attached, spring-loaded with two bearings. As a result, the rotating mechanism becomes better controllable and is not subject to vibration.
New to the opening and closing mechanism is a design developed for Sylax that allows the disc to float along the horizontal axis of the shutter. As a result, the reliability of the mechanism has increased, and the ability to precisely regulate the current of the working medium has greatly increased.
Danfoss valve Today it is considered one of the most reliable in terms of tightness. It, like some valves, has a special circular recessed channel. But if the channel is evil for valves, then Sylax valve“uses” it for lining - and this is a guarantee of one hundred percent sealing when the pipeline is completely blocked.
Finally, Sylax models are heat resistant. Heat resistance is achieved through the use of a particularly durable polymer for the saddle seal, which can withstand temperatures reaching 130 degrees for a long time.
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Butterfly valves Danfoss SYLAX WFY-WH Diameter: DN 50 - 300 Pressure: PN 16 Purpose: water, drinking water, heating, glycol Control: handle Body material - gray cast iron, disc - high-strength cast iron |
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Butterfly valves Danfoss SYLAX VFY-WH Diameter: DN 25 - 300 Pressure: PN 16 Connection to the pipeline: wafer Temperature range: -10°C to +120°C Control: handle Body material - gray cast iron, disc - stainless steel |
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Butterfly valves Danfoss SYLAX WFY-WG Diameter: DN 50 - 350 Pressure: PN 16 Connection to the pipeline: wafer |
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Butterfly valves Danfoss SYLAX VFY-WG Diameter: DN 25 - 350 Pressure: PN 10, 16 Purpose: water, drinking water, heating, glycol up to 50% Connection to the pipeline: wafer Temperature range: -20°C to +120°C Control: mechanical gearbox |
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Diameter: DN 400 - 1000 Pressure: PN 16 Purpose: drinking water Connection to the pipeline: wafer Temperature range: -15°C to +90°C Control: mechanical gearbox Body material - cast iron, disc - high-strength cast iron |
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Danfoss ENODIA butterfly valve Diameter: DN 400 - 1000 Pressure: PN 16 Purpose: water, drinking water, heating, glycol up to 50% Connection to the pipeline: wafer Temperature range: -15°C to +120°C Control: mechanical gearbox Body material - cast iron, disc - stainless steel |
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Danfoss SYLAX VFY-LH butterfly valves Diameter: DN 32 - 300 Pressure: PN 16 Purpose: water, drinking water, heating, glycol up to 50% Control: handle Body material - cast iron, disc - cast iron, stainless steel |
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Butterfly valves Danfoss SYLAX VFY-LG Diameter: DN 150 - 300 Pressure: PN 16 Purpose: water, drinking water, heating, glycol up to 50% Connection to the pipeline: wafer, with threaded holes Temperature range: -25°C to +120°C Control: mechanical gearbox Body material - cast iron, disc - high-strength cast iron |
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Butterfly valves Danfoss SYLAX VFY-WA Diameter: DN 50 - 350 Pressure: PN 16 Purpose: water, drinking water, heating, glycol up to 40% Connection to the pipeline: wafer Temperature range: -25°C to +120°C Control: pneumatic drive Body material - cast iron, disc - high-strength cast iron |
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Danfoss ENODIA butterfly valve Diameter: DN 400 - 1000 Pressure: PN 16 Purpose: water, drinking water, heating, glycol up to 50% Connection to the pipeline: wafer, with threaded holes Temperature range: -25°C to +120°C Control: electric drive Body material - cast iron, disc - stainless steel |
