Gas ball valves. Ball valves Stainless steel ball valve
Ball GShK cranes are divided into several types:
1. GShK welded ball valves.
The ball valve is connected to the pipeline by welding. The main advantages of this model are ease of maintenance and maximum reliable tightness of the connection.
GShK ball valves are classified into groups depending on climatic version and the transported medium.
In the first case, there are serial production models made of steel 20 in accordance with state standard 1050-88 and withstanding temperature changes from -40 to +80 degrees Celsius, and ball valve s “Nord”, for the production of which 09G2S steel is used, corresponding to state standard 19281-89 (operating temperatures from -60 to +80 degrees Celsius).
The transported medium of the pipeline determines the division of valves into models with polyurethane and fluoroplastic valve seals.
2. GShK flanged ball valves
Purpose: designed to be installed on pipelines as a shut-off device for both internal and external use.
The presence of floating flanges allows you to install the valve in absolutely any position. Moreover, angular alignment of the mounting holes of the pipeline flanges is not required at all.
Thanks to the flange connection, you have the opportunity to repeatedly mount and dismantle the faucet, provided that the joints are absolutely sealed and can be tightened.
Depending on the climatic version, flanged ball valves can be of standard or northern design (“Nord”). The latter has the ability to operate at lower temperatures.
The transported medium determines the division of ball valves into models with polyurethane and fluoroplastic coating.
3. GShK coupling ball valves
Purpose: designed to be installed on pipelines as a shut-off device for both internal and external use.
Today there are 2 main classifications of coupling valves. The first is based on climatic design, the second is based on the transported medium of the pipeline.
The climatic design determines the division of coupling valves into two groups. The first is serial models in a steel case (steel 20, corresponding to state standard 1050-88) with an operating temperature from -40 to +80 degrees Celsius. The second group is Nord ball valves in a steel body (steel 09G2S, corresponding to state standard 19281-89) with an operating temperature from -60 to +80 degrees Celsius.
The transported medium determines the division of coupling ball valves into models with polyurethane and fluoroplastic sealing of the valve.
4. GShK wafer-type ball valves
Purpose: installed on pipelines to serve as a shut-off valve.
The valve is installed using standard bolts between the mating flanges of the pipeline. If desired, the valve can be equipped with fasteners and counter flanges.
The climatic design determines the division of wafer valves into 2 groups. The first is DN50 ball valves, including standard models (steel 20 state standard 1050-88 and operating temperature from -40 to +80 degrees Celsius) and northern (steel 09G2S state standard 19281-89 and operating temperature from -60 to +80 degrees Celsius). The second group is ball valves DN80 and DN100 (the body is made of D16T alloy, the operating temperature ranges from -60 to +80 degrees Celsius).
5. GShK regulating ball valves
Purpose: designed to be installed on pipelines transporting natural gas, corresponding to state standard 5542-87, as a regulating shut-off device for both internal and external use.
The gas control valve is available in two modifications: standard (operating temperature ranges from -40 to +80 degrees Celsius) and northern (“north”) - from -60 to +80 degrees Celsius. Working pressure is 1.6-2.5 MPa. Tightness class - A, corresponding to state standard 9544-93.
6. GShK union ball valves
The ball valve is equipped with a welded ball nipple and is available in several types depending on the climatic version and the transported medium.
The climatic design determines the division into serial cranes in a steel body (steel 20 of the state standard 1050-88 with an operating temperature from -40 to +80 degrees Celsius) and northern cranes (steel 09G2S of the state standard 19281-89 with an operating temperature from -60 to + 80 degrees Celsius).
The transported medium determines the division of cranes into models with polyurethane and fluoroplastic coating.
7. Gas ball valves GShK with electric drive MEOF
Purpose: Installed on pipelines to perform a function shut-off valves.
The uniqueness of this crane model is the use of an electric drive, consisting of a single-turn actuator operating on electricity, type MEOF, as well as a position indicator.
The electric ball valve has several operating pressures - 1.6, 2.5 and 4.0 MPa. The operating temperature ranges from -60 to +80 degrees Celsius. Tightness class - A, corresponding to state standard 9544-93.
Ball valves - view pipeline fittings, in which the shutter has the shape of a ball with a hole, in open position through which gas or liquid enters. Ball valves are a shut-off device; the movable moment of the valve has the shape of a body of rotation with a passage for the flow of the working medium; to shut it off, it rotates around its axis perpendicular to the axis of the pipeline. A manual or pneumatic drive used in a ball valve provides locking.
The main advantages and disadvantages of a ball valve over valves with valves include the following:
- low hydraulic resistance;
- simplicity of design;
- possibility of well-free installation on the pipeline and installation in any working position;
- small dimensions in height;
- absence of stagnant zones;
- simple shape of the flow part;
- full bore in ball valves;
- good protection and lubrication of sealing surfaces;
- simple operation (rotate the plug 90°);
- applicability for viscous or contaminated media, suspensions, slurries and slurries;
- possibility of use as a shut-off or regulating device;
- ball valves are more durable and reliable.
Ball valves are most often used for installation of plumbing and heating systems, water pipelines, and also recently they have become widespread in the assembly of gas pipelines.
The international classification divides ball valves into:
- Standard;
- Full bore;
- Partial bore.
The ball valve can have several options depending on the number of pipes and the direction of the working medium (through and angle valves, multi-way and three-way valves).
For the manufacture of ball valves, brass is used, stainless steel and cast iron. Ball valves are manufactured depending on where they will be used. Materials, coatings, designs depend only on the purpose of the crane.
Brass ball valves
Not much time has passed since the appearance of the brass ball valve, but it was immediately appreciated by the consumer. Brass ball valves can be classified as universal; they are used in plumbing, heating networks, and in the oil and gas industry.
The main advantages of brass taps include:
- Brass ball valves are used when transporting working media with high temperatures;
- Using brass ball valves, you can instantly shut off the flow;
- Brass ball valves offer no resistance to flow;
- The closing of a brass tap cannot be prevented by mechanical impurities and deposits in the transported medium;
- The brass ball valve is not subject to corrosion;
- The ball valve body is made of brass using the hot pressing method. Brass cylinder heated in induction furnace up to 700°C in one working stroke the press acquires its final shape, this guarantees a uniform structure of the material in any section of the product, which, in turn, ensures the reliability of the product.
Steel ball valves
Ball valves are made of bronze, plastic, brass, ceramic, etc. Today, the leader among all valves of this type are steel ball valves. Steel cranes have taken a leading place due to their high reliability and durability, great functionality, but at the same time their price is very low.
Steel ball valves are designed:
- for covering normal, aggressive and food environments;
- to block the flow of a liquid medium that is non-aggressive to the valve material;
The ball valve is indispensable for use in heat supply systems, in oil pipelines, in heating, cooling ventilation systems, in steam and condensate networks, in oil pipelines and other systems.
The main advantages of steel ball valves:
- Steel ball valves can be equipped with electric drives, pneumatic drives and worm gear reducers, and the drive mechanism is easy and simple to install even after the installation of the crane;
- Steel ball valves are made from super quality materials, have low weight and enormous reliability;
- It is possible to remove the faucet handle and move it 180°;
- During use, steel cranes do not require preventive maintenance. It does not need to be tightened or lubricated.
- The housing design does not have heavy and unreliable casting parts;
- Steel ball valves are reliable, durable and have high tightness.
Gas ball valves (GShK)
Gas ball valves are most often used in pipelines hot water, But design features expand the scope of their application.
Gas ball valves (GShV) are indispensable in industrial sectors such as petrochemical, chemical, gas and oil. Gas taps have a number of advantages over other types of shut-off valves, such as high strength, tightness, ease of use and long term operation.
Gas ball valves have a number of important features:
- Replaceable sealing inserts in the valve allow you to quickly replace the seal;
- The lower drain hole makes it possible to clean the product without cutting out the pipeline, which greatly simplifies the process of cleaning the faucet.
- Thanks to the temperature compensator in the self-aligning wedge, you can easily control the temperature of the product.
- The cranes are environmentally friendly and comply with all SanPiN and state standards.
Gas valves are not used for regulation, since they have only two positions - fully open or closed. One of important differences Gas ball valves from pipeline valves are durable.
Gas ball valves have several modifications, which differ according to the following principles:
- According to the diameter of the pipe being locked;
- According to the type of fastening of shut-off valves to the gas pipeline;
- According to technical data determined by pipeline safety requirements.
Gas ball valves differ in design during manufacture:
Climatic version:
- Gas ball valves made of steel 20 GOST 1050-88 (from –40°C to +80°C).
- Gas ball valves “northern version - Nord” (an “N” is added to the designation). Crane made of steel 09G2S GOST 19281-89 (from –60°C to +80°C).
Design depending on the transported pipeline medium:
- Gas ball valves with fluoroplastic valve seal (F-4 GOST 10007-80) ("Zh" is added to the designation). The cranes are designed to operate in environments following types: non-aggressive natural gas purified from mechanical impurities (GOST 5542-87), liquid phase of liquefied hydrocarbons (GOST 20448-90 and GOST 27578-87), petroleum products, water.
- Gas ball valves with polyurethane seal seal (SKU PFL 100 TU 38-1051240-78). Designed to operate in the following types of environments: non-aggressive natural gas, unrefined from mechanical impurities (GOST 5542-87), petroleum products, water.
Union ball valve
You can always buy a coupling ball valve from us:
- three-way coupling ball valve
- steel ball valve
- brass coupling ball valve
- stainless steel coupling ball valve
Stainless steel ball valve
Currently, stainless steel ball valves are used in all sectors of the economy: heat supply, food and chemical industry, in gas and oil pipelines and in other pipeline networks where switching, redirection and shut-off of moving flows of the transported medium are needed (some models can also be used as valves). Most taps can withstand any aggressive environment - acidic, alkaline, hydrocarbon, etc.
Types of stainless steel ball valve:
- stainless steel three-way ball valve with the following flow distribution patterns: left - closed - right, left - right, left - flow - right;
- stainless steel wafer type ball valve;
- flanged collapsible (there are also solid cast ones);
- coupling;
- stainless steel welded dismountable ball valve (all-welded non-dismountable ones are available);
- welded deep (underground).
Possibility of control: manual, electric, pneumatic. The stainless steel ball valve has a wide range of diameters up to 200 mm and operating temperatures up to 180? C. Simplicity of design and reliability in operation allowed the stainless steel ball valve to become an indispensable link in any pipeline and a sought-after product.
Pipeline fittings will not be reliable and durable without blocking the flow of the gaseous medium. The gas ball valve is an up-to-date equipment for domestic and industrial gas pipelines. Such fittings are installed on the pipeline and serve to block the flow of gaseous liquid.
Until recently, a plug valve and a sleeve valve were used for the home heating network. According to their passports, they had to work for quite a long time. For example, the service life of the first equipment was 8 years. But, after 40 cycles (instead of the promised 400), they began to “lose ground.” The stuffing box turned into mush, and the plug dangled in the body. Even in the closed position it let gas through. And the gas workers simply removed the plug, leaving the tap as a decoration.
They had to work out 1300 cycles. In fact, after 40 cycles they were leaking gas. Sediment accumulated on them and the flow was not blocked very tightly. They also reduced the throughput pressure of the gaseous liquid.
Innovative solution - gas ball valve
The gas ball valve appeared on our market quite recently, and immediately became an excellent solution for reliable shut-off gas pipeline. That is why it has gained such popularity among consumers. From distinctive features it is worth noting:
- – high service life;
- – simple design;
- – excellent performance characteristics;
- – low cost.
Gas ball valves are a shut-off device with locks made in a spherical shape. They have a special hole designed to allow gas to pass through and close it. The shutter can be moved around its axis. It is located perpendicular to the pipeline.
Enough simple design allows the device to serve for a long time and reliably. It has proven itself well among consumers and is rapidly gaining popularity.
The gas ball valve is manufactured using the best varieties steel. It can be used even at temperatures from -60 to +200 degrees Celsius.
The operating environment is not important. This can be either an aggressive or food environment. This type of crane has already become much more popular than its competitors, such as conical or cylindrical devices.
Types of gas taps
There are several types of shut-off systems for gaseous media.
1) The tap is divided according to its attachment to the pipeline:
- – welded;
- – fitting.
For home system For heating and gas supply, the coupling type is perfect. Flanged - also used when transporting gaseous substances and oil. It is small, easy to install and very reliable.
2) By special purpose ball gas system It happens:
- – three-way. Used for redistribution of gas flows;
- – with housing heating;
- – with leakage control.
3) According to the body material:
4) By passage diameter:
- – DN 10-50;
- – DN above 50.
5) According to nominal pressure:
- – PN 1.6 MPa 16 kg/cm2;
- – PN 4.0 MPa 40 kg/cm2. Gas ball valve design
Gas ball valves have excellent tightness. They are quite light, but reliable. Temperature the working environment can be extremely high and extremely low. And the faucet operates at a temperature environment from -60 to +80 degrees Celsius. Also, by purchasing this device you get an acceptable warranty period for operation.
Thanks to this, the use of a gas ball valve is quite economical. They have a high margin of strength and functionality. The devices will work for more than ten years without the need for replacement.
By using taps from well-known manufacturers, you simplify the operation of the gas network, saving your money.
Ball valve installation process
You can even install the faucet yourself. To do this, you will first have to clean the hose from dust and dirt. Before doing this, you must completely close the gas supply valve. By the way, if the pipe is subject to vibration at least periodically, it is best not to install such a faucet. Otherwise, let's continue.
Take a linen thread with sufficient width. When twisted, it should lie inside the pipe. Its length is 1.5 times greater than the turns on the thread. Unscrew about 7 centimeters from the beginning of the thread and place it in the hollow, having previously twisted it. Next, wind it clockwise around each valley. The second layer comes from 
winding time before starting. Wind the rest of the thread clockwise as well.
Squeeze a layer of sealant you prepared in advance onto the thread and cover the components of the faucet with your hand. If you did everything correctly, then the device should turn two turns. You need to tighten it using a wrench.
It is best if the tap is made of brass. It has a low weight, small dimensions and a high working life. The design itself is reliable and versatile. TO maintenance This type of faucet is unpretentious and can be installed in any position. The gas flow is shut off very hermetically, and it is supplied in any direction.
This device has a huge operational resource. It is made from forged brass. The material is safe for human health, the environment and pipelines. The seal is made of an stuffing box. It is easily adjusted with a nut under the handle of the equipment. I also use Teflon movable seals here. If the system skips, you can simply tighten the nut. The seal will press in and serve you for a long time long time. The design life reaches 20,000 cycles.
The system is considered completely safe due to the fact that the rod is attached inside the housing. This way it won't fly out even if you unscrew the nut completely. An explosion is also excluded when the pressure exceeds the operating pressure.
Such equipment has a long service life and does not require repair or lubrication. The tightness prevents leakage even during long term operation. If you turn the lever 90 degrees, this will be enough to close or open the system.
Full bore ball valve GShK-40 Du40 Ru25 used in pipelines for utilities, power systems and the oil and gas industry.
These valves are designed to work with gaseous and liquid media, incl. viscous and contaminated, suspensions, pulps, sludges. They are controlled manually or by drive: electric, pneumatic or hydraulic.
Design working environment - non-corrosive gas. For the manufacture of the body it is used steel 25L. Temperature range: -40 to +60 C 0 . Connection to the pipeline - coupling according to GOST 6527-68.
The type of connection and gasket material are selected depending on the operating conditions of the valves: pressure, operating temperature and corrosive properties of the environment.
Technical characteristics and parameters
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Dimensions and weight
Construction length (L)- the length of the pipe section that the valve replaces in the pipeline. Construction height (H)- the distance from the axis of the crane passage to the end of the spindle in the upper position.
5 steps to buy a ball valve from us
The warehouses of PKF PTER always have the necessary stock of these cranes. We are the official dealer of the manufacturer.
Buy ball valves GShK-40 DU40 RU25 You can in the following way:
1
You contact our managers any in a convenient way for consultation and selection of goods according to the required parameters.
The price, payment terms and delivery time are negotiated.
Registration
Conclusion of an agreement, preparation of related documents.
