INSTRUCTIONS AND PROPHECIES OF THE Blessed MOTHER ALIPIA GOLOSEEVSKY, Kyiv...
Hello dear reader! Among the representatives of shutoff valves, the flanged ball valve stands out as well as for its appearance, and the way of joining communications. In today's article, we will analyze what design it is, how best to use it.
Flanged valves ball type differ from their counterparts in the presence of flanges - round or less common square parts, with the help of which the body of the assembly is attached to the counter flanges of the pipes.
The main function of the valve is to open or block the movement of flow through the pipeline.
Depending on the characteristics, the material of manufacture and the thickness of the walls of the case, it can be installed in systems with contents that differ in their characteristics.
Purpose and scope
Like a shutoff valve Ball Valves practically ousted valves and gate valves from the market. By virtue of their design, they allow you to quickly block the work flow, including in certain sections of the network. This quality is in demand in emergency situations, if necessary, local repair and other cases.
Use a flange connection where it is difficult to use a threaded or welded connection.
For example, it is difficult to cut high-quality threads into large diameter pipes. Therefore, as a rule, flange structures are installed in industrial and utility networks, in pipelines with a cross section of more than 40 mm.
At home, flange connections are used for mixers, laying water supply systems through submersible pumps.
Submersible pump connection diagram using a flanged valve:
Characteristics
State standards normalize the main sizes and technical specifications device data. They are installed in a single dimensional interval, but have different restrictions, depending on the application.
The main sizes are:
- nominal inner diameter (DN), the range of which is allowed from 15 to 1400 mm;
- construction length.
Technical parameters include:
- the value of the working pressure PN with different restrictions in individual GOSTs from 1 to 10 MPa, up to 250 MPa and above;
- meaning operating temperature or its ratio with the pressure indicator (determined by the manufacturer).
The applicability of cranes to various working environments is set by the developers.
What materials are made from
The raw materials for the manufacture of the body and the shut-off part of flanged valves are:
- cast iron;
- brass;
- carbon and alloy steel;
- stainless steel.
In the photo, a stainless steel faucet:
Crane device
The crane of the type under consideration consists of a body with flanges, a locking mechanism placed inside it, a manual control handle or another drive.
The locking device includes a polished ball, often chrome-plated or stainless steel, a stem fixed through a spindle with a handle. A slit is made in the sphere, which serves as a through hole.
Principle of operation
When the handle is turned, the ball turns with a slot either towards the walls of the body (closed position) or towards the flow and opens a passage for it through the pipe.
Advantages and disadvantages
Consider the pros and cons of these cranes.
- The main advantage of flanged devices is that the valve can be relatively easily dismantled without damaging the joints, repaired and put back in place.
- Connections through flanges are considered the most reliable with a high pressure of the working medium in the system.
- The crane can be mounted both vertically and horizontally.
Flanged type ball valves also have disadvantages:
- ball valves do not like impurities in the working environment, their sphere begins to wear out and leaks appear;
- for use in everyday life they are quite expensive;
- have a heavy weight, which creates an additional load on the pipeline.
Differences between a crane and a valve
Valves and gate valves were previously widespread. However, the spherical design turned out to be more reliable, easy to manage and operate. Gate valves, for example, require constant care, they are often jammed, they are more massive.
Types and designs
The division of flanged ball valves by type occurs according to the operating conditions and areas of application.
From the point of view of maintainability, the design of the hulls can be:
- all-welded;
- two-part;
- three-piece.
By degree bandwidth distinguish between cranes:
- full bore;
- standard passage.
The division by type of management is important:
- manual;
- with gearbox;
- electric drive;
- pneumatic drive;
Differences
Manual control is standard.
Mechanical gearboxes are installed where a smooth opening of the device is necessary, as well as on taps with a diameter of more than 30 cm.
Electric drives make it possible to control the device remotely, quickly adjust the settings.
Pneumatic drives also allow you to control the object remotely, including in explosive areas where the installation of an electric drive is impossible.
Life time
The duration of stable operation of ball flanged valves is determined by the operating conditions and the material of its manufacture. Often the first to fail are seals exposed to hot temperature network content. The mechanical part of the units of stainless steel can serve according to manufacturers up to 50 years.
The choice is predetermined by the composition of the working environment and the dimensions of the communication pipes.
The most basic information about the crane is included in the data sheet of the device and is shown on the body marking.
approximate price
Device cost of this type depends on sizes specifications and trademark products. Flanged valve with a diameter of 100 mm with a working pressure of 16 bar made of carbon steel, manufactured Russian manufacturer can be purchased for an average of 3,500 rubles. A valve of the same size, but with a stem and a stainless steel ball, a control function and a manufacturer from Finland will cost 49 thousand rubles.
Rules for the installation and operation of the crane
The installers must be familiar with the installation instructions recommended by the manufacturer.
Important to check before starting installation work completeness of the equipment, the absence of any damage and defects.
When installing the tap, check the position of the valve - it must be in the open position.
During operation, the device is regularly inspected, the tightness of flange connections, the cleanliness of the surface of the sphere and seals are checked.
Do not use tools or levers that extend the handle to operate the crane.
Necessary tools and materials
To mount a flanged manual valve, you will need:
- a set of keys;
- ruler for checking alignment;
- pipe cleaning tool;
- armature itself;
- bolts and nuts for fasteners.
If there are no mating flanges on the pipes, welding equipment and flange discs will be needed.
Work progress
- Determine the installation location: it must be accessible for work on maintenance faucet, and have room for a full turn of the handle.
- Pre-attached flanges
products on two bolts to the mating parts of the pipeline.
- Check the alignment of the valve holes and pipes, the coincidence of the bolt holes in the flange disks.
- Install flange seals.
- Tighten the bolts crosswise with the appropriate force.
Installation video
Installation of a manually operated flanged valve:
Operation features
It is necessary to turn the valve handle until it stops, that is, the valve must be open or completely closed. Incomplete rotation of the handle may damage the sealing seats of the valve.
Depending on the design, the valve handle must be turned through certain time, to avoid jamming the sphere.
Common errors and installation problems
Incorrect selection of fittings according to the type of working medium, its pressure and other important parameters.
Violation of the installation rules: errors in the alignment of the valve and pipeline, misalignment of the flanges during installation, which lead to stress and damage to the connection.
Installing defective flanges will quickly lead to leaks.
When choosing equipment, it is necessary to provide for a margin for nominal pressure - the fittings must have a higher rating of this parameter, which is very important for the stable operation of the product in the future.
One of the disadvantages of flanged models is the loosening of fasteners over time and, as a result, loss of tightness. Therefore, it is important to periodically tighten the bolts.
RUSEVROSTAL supplies ball valves according to ISO and DIN standards from stainless steel AISI 304 and AISI 316 various types connections from stock.
Steel grade: AISI 304/304L (general purpose), AISI 316/316L (acid resistant).
Application environment: WOG (Water / Oil / Gas), translated as Water / Oil / Gas.
Minimum order from 1 piece.
Producing country: Germany, China, Czech Republic.
ball stainless faucet- this is a type of shut-off and adjustable fittings, the locking mechanism of which is a spherical plug in the form of a ball. The seat seal of the ball valve is a PTFE seal. This seal is airtight and ensures a smooth adjustment of the faucet handle. Depending on the environment and operating conditions, valves are made of various steel grades, with various connection options.
Scope of application:
- civil works
- drinking pipelines
- food industry
- cryogenics
- pharmaceutical industry (liquid transport)
AISI304L/316L are subdivided:
- ball valve VR/VR (female thread)
- ball valve for welding (3-part valve with welded nozzles at the edges)
- ball valve 3-way (L-shaped and T-shaped)
- flanged ball valve
Size range of flanged ball valve
| DN | L | H |
|---|---|---|
| 15 | 130 | 75 |
| 20 | 150 | 80 |
| 25 | 160 | 90 |
| 32 | 180 | 95 |
| 40 | 200 | 100 |
| 50 | 230 | 110 |
| 65 | 290 | 120 |
| 80 | 310 | 130 |
| 100 | 350 | 150 |
Select GOST:
BREEZE BREEZE s/n BREEZE p / p with a reducer BREEZE s/n BREEZE s/n with gearbox BREEZE with gear Broen Ballomax n/a Broen Ballomax s/n Broen-DZT Danfoss LD LD gas LD n/a LD p / p under the valve LD p/p with reducer LD full length LD s/n LD s/n with gearbox Naval Navaltrim Titan Titan full bore Titan standard bore Zetkama Zetkama p/p Aleksin with KOF Belarus Hydrolock Denmark KSh.R.F KSh.R.F full KSh.Ts.F KSh.Ts.F full LAZ LAZ standard passage LAZ shortened full bore Marshal Marshal p / p Marshal c / p Marshal with KOF Penza Russia SUF Strommash Phobos ChSGS two-piece linear regulating n/a n/a couples for gearbox for electric drive full length full length p/mon full length with ed. equal bore reduced reduced with gearbox s/n hand lever with gear with ISO flange with ISO flange, for drive with ISO flange, with gear with gearbox standard bore with worm gear with electric drive electric drive DN.RU-003 220V electric drive DN.RU-003 380V electric drive DN.RU-005 220V electric drive DN.RU-005 24VDC electric drive DN.RU-005 380V electric drive DN.RU-010 220V electric drive DN.RU-010 24VDC electric drive DN.RU-010 380V electric drive DN.RU-015 220V electric drive DN.RU-015 24VDC electric drive DN.RU-015 380V electric drive DN.RU-020 380V electric drive DN.RU-040 220V electric drive DN.RU-040 380V electric drive DN.RU-060 220V electric drive DN.RU-060 380V electric drive SP 0 electric actuator SP 0.1 electric drive SP 1 electric drive SP 2 electric drive SP 2.3 electric drive SP 2.4 electric drive UP 2.5 electric drive GZ-OF-100/15 electric drive GZ-OF-110/11M electric drive GZ-OF-1200 electric drive GZ-OF-1200/30 electric drive GZ-OF-150/22M electric drive GZ-OF-18/12K electric drive GZ-OF-200/14M electric drive GZ-OF-25/5.5K electric drive GZ-OF-2500 electric drive GZ-OF-2500/30 electric drive GZ-OF-300/28M electric drive GZ-OF-320/15 electric drive GZ-OF-400/14M electric drive GZ-OF-45/11K electric drive GZ-OF-5000 electric drive GZ-OF-600/28M electric drive GZ-OF-630/15 electric drive GZ-OF-70/5.5M electric drive GZ-OF-80/21KChoose length:
Ru 10 Ru 16 Ru 160 Ru 16 L=115 Ru 16 L=117 Ru 16 L=119 Ru 16 L=120 Ru 16 L=125 Ru 16 L=127 Ru 16 L=130 Ru 16 L=140 Ru 16 L= 150 Ru 16 L=160 Ru 16 L=165 Ru 16 L=170 Ru 16 L=180 Ru 16 L=190 Ru 16 L=200 Ru 16 L=210 Ru 16 L=225 Ru 16 L=230 Ru 16 L= 250 Ru 16 L=255 Ru 16 L=270 Ru 16 L=280 Ru 16 L=290 Ru 16 L=300 Ru 16 L=310 Ru 16 L=320 Ru 16 L=325 Ru 16 L=330 Ru 16 L= 350 Ru 16 L=380 Ru 16 L=381 Ru 16 L=390 Ru 16 L=400 Ru 16 L=403 Ru 16 L=410 Ru 16 L=450 Ru 16 L=460 Ru 16 L=502 Ru 16 L= 530 Ru 16 L=54 Ru 16 L=540 Ru 16 L=610 Ru 16 L=650 Ru 16 L=66 Ru 16 L=73 Ru 16 L=750 Ru 16 L=880 Ru 16 L=93 Ru 16 L= 99 Ru 16 L=990 Ru 25 Ru 25 L=165 Ru 25 L=180 Ru 25 L=190 Ru 25 L=200 Ru 25 L=210 Ru 25 L=230 Ru 25 L=270 Ru 25 L=280 Ru 25 L=290 Ru 25 L=300 Ru 25 L=310 Ru 25 L=320 Ru 25 L=325 Ru 25 L=350 Ru 25 L=380 Ru 25 L=400 Ru 25 L=410 Ru 25 L=450 Ru 25 L=530 Ru 25 L=650 Ru 25 L=750 Ru 40 Ru 40 L=117 Ru 40 L=120 Ru 40 L=127 Ru 40 L=130 Ru 40 L=140 Ru 40 L=150 Ru 40 L=160 Ru 40 L=165 Ru 40 L=180 Ru 40 L=200 Ru 40 L=216 Ru 40 L=230 Ru 40 L=241 Ru 40 L=283 Ru 40 L=290 Ru 40 L=300 Ru 40 L=305 Ru 40 L=381 PN 40 L=403 PN 6Select steel:
09Г2С 10с9пм 11с10фт 11с22п 11с32п 11с332п 11с333п 11с338п 11с33п 11с33п1 11с341п 11с342п 11с38п 11с41п 11с41п (газ) 11с41пМ1 11с42п 11с42п (газ) 11с42фт 11с52п 11с54пМ 11с64п 11с67п 11с67п (газ) 11с67п1СФ 11с67п2ЦФ 11с67п2ЦФ 09Г2С 11с67п-2ЦФШ 11с67п-5СФ 11с67п СУФ 11с67п-СФ 11с67п- СФ 09Г2С 11с67п-Ц 11с67п-ЦФ 11с67п-ЦФ 09Г2С 11с67п-ЦФШ 11с69п 11с72п 11с933п 11с941п 11с942п 11с967п 11ч37п 33а26р 565A 5СФ.00 ABRA-BV41-Q41F-DIN-2G ALSO Ballomax Broen Broen Ballomax (газ) Dendor F3515 Dendor F3530 FAF 1000 FAF 1100 FAF 1200 FAF 1220 FAF 1250 FAF 1280 FAF 1400 Genebre 2036 Genebre 2528 Genebre 2529 JIP-FF JIP-FF Premium JIP-FF Standard LD LD 09G2S LD 11s67p LD Energy LD Energy (gas) LD Regula LD gas Naval Naval gas Naval steam Pekos P02 Pekos P04 Pekos P06 SBV Seagull Temper 283 V565 Vexve 103 Vexve 143 Zetkama 565A AN30gk gas AN30k Bival KSHG 12 Bival KSHG 11 Bivalve KSHT 12 Bivalve KSHTH 11 Bivalve KSHTH 12 for gas type JIP/G-FFFlanged ball valves Auctions and customer requests
- 05/24/2019 at 18:10 Leading Specialist of OMTO PJSC "Podzemburgaz" will acquire:
Valve 15B 1p Du15 in the following volume: 2 pcs
Valve 15B 1p Du20 in the following volume: 4 pcs
Gate 15kch19p Du50 flange. in the following volume: 4 pcs
Ball valve 11B27p1 lever DU15 mm in the following volume: 4 pcsCustomer wishes: Interested in these positions, if the possibility of delivery, please issue an invoice, taking into account the delivery to the address: Saratov region, Soviet district., the village of Stepnoe. Valve 15B 1p Du15 - 2 pcs. Valve 15B 1p Du20 - 4 pcs. Gate 15kch19p Du50 flange. - 4 things. Crane 11B27p1 lever DN15 mm - 4 pcs. respond to an application
- 05/24/2019 at 17:55 OOO "StroyProekt" will buy:
Ball valve TEMPER, DN65 steel: steel, flanged, PN=16bar, Tmax=170°C, in the following volume: 2 pcs
Ball valve TEMPER, DN32
Ball valve TEMPER, DN15
Ball valve TEMPER, DN32 steel: steel, welded, Ru=40bar, Tmax=170°C, in the following volume: 3 pcs
Ball valve TEMPER, DN15 steel: steel, welded, Ru=40bar, Tmax=170°C, in the following volume: 1 pc
Ball valve TEMPER, DN20 steel: steel, welded, Ru=40bar, Tmax=170°C, in the following volume: 1 pc
Ball valve TEMPER, DN32
Ball valve TEMPER, DN32 steel: steel, welded, Ru=40bar, Tmax=170°C, in the following volume: 3 pcs
Ball valve TEMPER, DN15 steel: steel, welded, Ru=40bar, Tmax=170°C, in the following volume: 1 pc
Ball valve TEMPER, DN20 steel: steel, welded, Ru=40bar, Tmax=170°C, in the following volume: 1 pc
Ball valve TEMPER, DN50 steel: steel, welded, Ru=40bar, Tmax=170°C, in the following volume: 3 pcs
Ball valve TEMPER, DN15
Ball valve TEMPER, DN20 steel: steel, welded, Ru=40bar, Tmax=170°C, in the following volume: 1 piece
Ball valve TEMPER, DN50 steel: steel, flanged, PN=16bar, Tmax=170°C, in the following volume: 3 pcsCustomer wishes: ball valve steel, flanged, PN=16bar, Тmax=170°C TEMPER, DN65 , DN15 Steel ball valve, flanged, PN=16bar, Тmax=170°C TEMPER, DN50 respond to an application
- 05/21/2019 at 07:41 The power of labor will acquire:
Ball valve three-way flange T obraznDu 25 in the following volume: 2 pcs
Ball valve three-way flange T obraznDu 32 in the following volume: 1 pieceCustomer wishes: Crane three-way flanged T obraznDu respond to an application
- 05/16/2019 at 10:32 Dimitrovgradkhimmash will acquire:
Ball valve DN15 y-y
Valve valve cast iron. DN15 in the following volume: 20 pcs
respond to an application - 05/16/2019 at 07:06 Organization (contact person: Tuyana) wants to buy:
Ball valve Flanged ball valve Naval DN150 PN25 (with flanges and fasteners) in the following volume: 2 pcs Ball valve Flanged ball valve Naval DN125 PN25 (with flanges and fasteners) in the following volume: 4 pcs Ball valve Naval ball valve flanged DN65 PN25 (with flanges and fasteners) in the following volume: 8 pcs Ball valve Butt weld ball valve Naval DN40 PN40 in the following volume: 2 pcs Ball valve Butt weld ball valve Naval DN25 PN40 in the following volume: 10 pcs PPU pipes, PPU insulation 14 in the following volume: 137 m/p PPU pipes, PPU insulation Pre-insulated longitudinally welded steel pipe in PPU insulation type 2, with polyethylene sheath, with ODC Ø133x4.5 mm St 133x4.5-2-PPU-PE in the following volume: 515 m/p PPU pipes, PPU insulation Pre-insulated longitudinally welded steel pipe in PPU insulation type 2, with a polyethylene sheath, with ODC Ø73x3.5 mm St 76x3.5-2-PPU-PE in the following volume: 62 m/p PPU pipes, PPU insulation Steel pre-insulated straight-seam electric-welded pipe in PPU insulation type 1, with a shell of thin-sheet galvanized steel, with ODC Ø159x5.0 mm St 159x5-1-PPU-OTs (m) in the following volume: 6 m/p Elbow Elbow of steel in PPU insulation with polyethylene sheath, with ODC Ø159x5.0-90° St 159x5-90°-2-PPU-PE in the following volume: 6 pcs Elbow Elbow of steel in PPU insulation with polyethylene sheath, with ODC Ø133x4.5-90° St 133x4.5-90°-2-PPU-PE in the following volume: 8 pcs Elbow Elbow of steel in PPU insulation with polyethylene sheath, with ODC Ø76x3.5-90° St 76x3.5-90°-2-PPU-PE in the following volume: 4 pcs Elbow Steel outlet in PPU insulation with galvanized sheath, with ODC Ø159x4.5-90° St 159x4.5-90°-1-PPU-OTs in the following volume: 2 pcs Elbow Steel seamless welded steeply curved elbows Ø159x5.0-90° in the following volume: 2 pcs Elbow Steel seamless welded steeply curved elbows Ø133x4.5-90° (pcs) in the following volume: 4 pcs Elbow Steel seamless welded steeply curved elbows Ø76x3.5-90° in the following volume: 12 pcs Elbow Steel seamless welded steeply curved elbows Ø45x3.0-90° in the following volume: 2 pcs Elbow Steel seamless welded steeply curved elbows Ø32x2.5-90° in the following volume: 5 pcs Steel pipes, electric-welded Steel pipe, electric-welded straight-seam Ø45x2.8 mm in the following volume: 7 m / p
