Compression fittings

SVK fittings, a reliable solution for the organization of drinking and technical water supply systems
Advantages of SVK compression fittings:
Wide range of connecting elements: The clutch transitions to the threads, ball valves and seats
Quality material PPR 100
Durability - 50 years of service
Convenient design that allows you to use the fitting repeatedly
Reliability, operating pressure PN16
It does not require special skills and expensive tools for installation

Crimp fittings connect PE pipes when assembling water supply communications for various purposes They are also widely used in irrigation systems, in the equipment of sewer communications, heating systems HDPE fittings securely connect pipes (without the possibility of leakage) with a diameter of 20 to 110 mm They can withstand a maximum working pressure of 1.6 MPa
General information

Compression fittings have gained well-deserved fame and popularity due to the simplicity and reliability of the connection They are easy to assemble by hand, do not require special tools and equipment, professional skills, qualifications and experience during the operation
For the arrangement of water supply or plumbing lines, polyethylene pipes are most often used, for which HDPE fittings are used The use of crimp connecting elements makes it possible to construct a highway of the desired configuration, make turns and branches

There are direct connecting elements that serve for pipes of the same diameter, and transition elements - for joining pipes of different cross-sections

The connecting structure

Connecting structures are divided into:

1. Welding The connection is made using a welding machine

2. Welded The coupling is created by an electric current that warms the coupling, ensuring a reliable connection
3. Compressive Collapsible structures, the connection density of which is created by dense rubber gaskets

Part of the fitting

The crimping (compression) fitting consists of:

• housing, which is a limiter for entering the pipe inside the connecting device The case has an external thread and a lock;
• o-ring made of rubber, which can be round or conical in shape, depending on the modification of the fitting;
• the thrust ring (or thrust bearing) It is used to fix the joint;
• collet-a pressing sleeve that protects against the destructive effects of high pressure;
• clamping nut with internal thread The cap nut covers the connection point

In the production of fittings, a modern material is used that can withstand pressure from 10 to 16 Bar

The advantages of fittings

Proper installation of HDPE fittings will ensure reliable connection of pipes

The main advantages of the fittings:

• easy installation (and disassembly) that does not require special skills and qualifications;
• no need to use special tools and equipment;
• multiple use The connection does not lose its reliability during repeated Assembly and disassembly (about ten times);
• corrosion resistance provided by materials that do not react with water;
• safety and hygiene, allowing the use of structures on water pipes that supply drinking water

Building communications
Installation is performed using the following types of fittings:

1. Coupling for pipes of the same cross-section Designed for reliable connection of pipes with the same cross section
2. Transition couplings Ensure reliable connection of pipes with different diameters
3. Couplings with internal or external thread output
4. HDPE tees that provide a transition to internal or external threads Firmly connect the pipes to the main elements of a different size or the same diameter as the pipe
5. Equilateral tees for 90 °C branch line
6. Taps that allow system elements to switch to external or internal threads
7. 90 °C pipe bends The most popular products also include bends for bending communications at 45 °C and 66 °C
8. Compression flanges They allow you to switch from a PE pipe to a flange for further installation of a steel element, as well as switch to a steel or cast-iron gate valve, or a crane, the connection method of which is a flange
9. Saddles Installed on top of the pipeline Then holes are drilled using a drill to install cranes
10. Plugs Designed to "clog" a specific area

Stages of installation using compression fittings

The pipes are connected as follows:

• the connecting element is disassembled into parts;
• preparation of the attached section using a sharp object (a knife or a special Stripping device in the form of a funnel), which removes the chamfer from the end of the pipe Using the built-in sharp cleaning blade, the end face is rounded, which eliminates damage to the rubber o-ring during installation;
• first, the clamping nut is put on the pipe, then the collet clamping plug and the clamping ring;
• the rubber sealing ring (just an elastic band, gasket or oil seal) is inserted into place - in a special groove inside the body of the connecting fitting;
• the prepared structure is inserted into the coupling housing up to the preliminary mark indicating the insertion depth;
• the pipe must fully enter the oil seal, this factor will ensure a reliable sealed connection, eliminating leaks;
• the clamping nut is tightened until it stops And the effort of the hand is enough for a stable puff For better fixation, a compression wrench, similar to a spanner, is used The key is used if you need to twist dozens of connections (so as not to RUB your hands to calluses)

Types of connecting fittings

SVK compression coupling
Connects pipes of the same cross-section in water supply and Sewerage systems, as well as when pumping liquid chemicals and cable insulation

The material used is environmentally friendly, durable, resistant to high and low temperatures polypropylene Plastic is not subject to corrosion, it is able to expand when water freezes inside the coupling, and then take the same size Resistant to direct sunlight

Reducer

It is used for connecting PE pipes of different diameters used in water supply systems for various purposes, Sewerage, irrigation, irrigation, heating

The distinctive characteristics of the transition couplings of the ICS are: excellent quality together with low price, lightness and ease of Assembly, simple to use The use of special equipment, tools, skills and professional experience during installation is not required The entire process takes no more than 15 minutes

Coupling with external thread outlet

Couplings from the company SVK (Russian production) are made from primary raw materials This is a great alternative to foreign crimp couplings Distinctive advantages: high indicators of technical and operational qualities, low price range They are used in water supply communications for technical and drinking purposes Withstand internal pressure up to 16 atmospheres The warranty period of operation without loss of original characteristics is more than 20 years

Couplings with internal thread output

Use for connecting pipes to other elements of the main line that have an external thread (adapters, ball valves), as well as for switching to shut-off valves made of steel or cast iron (gate valve or tap) They are characterized by low cost, high quality, excellent characteristics, and can withstand a pressure of about 1.6 MPa

Compression square (tap)

It is used for turning the pipeline when laying communications Russian SVK branches have clear advantages over their foreign counterparts, one of which is low prices that exclude the cost of customs clearance and logistics Excellent technical characteristics and excellent performance are inherent in polypropylene-the material used in the manufacture of products

The withdrawal of ICS with external thread

Designed for installation of pipelines operated at a pressure of up to 16 ATM The SVK tap thread corresponds to the standard parameters of the steel thread, which allows them to be used together with other compression elements

The withdrawal of ICS with internal thread

Designed for transition from a steel fitting The parameters of the tap thread, as well as in the case of taps with external threads, correspond to the standard parameters of the steel fitting The tap is made of high-quality and high-strength material, which guarantees stable stability and tightness when working under a pressure of 16 ATM

Equilateral tee SVK

Designed for joining pipes of the same diameter in irrigation, irrigation, water supply, Sewerage systems, as well as for pumping liquid chemicals that do not destroy the polyethylene material

Equilateral tee SVK is resistant to chemicals, ultraviolet radiation Unlike imported analogues, it is characterized by a low price, high strength Withstands pressure up to 16 ATM, easy and quick to install Designed for multiple use
It is perfectly combined with all polyethylene water pipes It is indispensable when installing seasonal devices for irrigation or irrigation At the end of the season it is easy to understand Each time you use it again, you must replace the rubber seal to ensure a reliable seal

Connecting tee manufactured by SVK

The SVK connecting transition tee is designed for branching the pipeline system Moreover, at the point where the tee is attached, a branch with a smaller diameter is attached to the pipe of a larger cross-section
Domestic products have preferential characteristics over foreign analogues It is used in the construction of irrigation and irrigation facilities for both the private and industrial sectors Simple to use It does not require additional installation equipment or tools, as well as special professional knowledge and experience
Operating pressure-up to 16 atmospheres The material is resistant to high and low temperature ranges, moisture and direct sunlight Compared with imported similar products, it has a low cost, which does not negatively affect the high quality

Tee with access to the external thread of the SVK

The domestic industry offers high-quality SVK tees with external threads, which are designed for pipeline systems operating under a pressure of no more than 16 atmospheres They are purchased for the construction and installation of irrigation and irrigation systems in private and industrial farms, for the construction of fountains, and for the construction of swimming pools

Tee with internal thread outlet

Compression fitting SVK of this modification is used in the creation of water mains for both drinking water supply and transportation of water for technical needs These are irrigation and irrigation systems that are widely used in agriculture, greenhouses, dachas, and country houses

The internal thread of the tee corresponds to the standard thread of steel products, so that for branching the pipeline system, you can use a steel or plastic fitting, ball valve, and other metal elements at this point of the node

Compression plug for PE pipes

The connecting element is used for hermetically sealing the pipe in the event of an accident, as well as during the construction of a pipeline with a temporary "blind" section The product material is resistant to UV rays and chemical reagents Due to this, the plugs are widely used in systems of technical and drinking water supply, irrigation and irrigation, Sewerage and pumping of liquid chemicals that do not destroy HDPE The plug is used for plugging pipes during the repair of communications and during the installation of new highways

The main characteristics of the compression plug: diameter-from 20 to 110 mm, is able to contain pressure from 10 to 16 atmospheres, the temperature of the transported liquid - from 20 °C to 45 °C
At its core, the plug is a clip with one blind side, which contributes to the tight connection of the fitting with the pipe The connecting element is compact and ergonomic, has excellent anti-corrosion properties, and performs a protective function: it prevents dirt from entering the pipeline system The plug consists of a housing, a compression ring and an o-ring In its production, a high-quality polymer is used, which can serve for more than one decade without losing its original performance characteristics

Saddle on the pipe

The saddle is often called a yoke The part consists of two halves, each of which compresses the pipe from its side The seat is designed for tapping into the pipeline of a secondary branch, without violating its integrity

The process is as follows: a hole is drilled in the pipe for a branch of the desired diameter, a compression seat is fixed, one of the halves of which is equipped with a threaded tap Thanks to the thread, you can quickly and easily mount the necessary node by attaching a ball valve, coupling, tee
The tie-in place is equipped with a rubber seal The o-ring guarantees a tight connection between the seat and the pipe and prevents leaks

Operations are performed without welding

This type of fitting has an outlet to the internal thread The quick release connection is of high quality and reliability

The device is widely used in water supply systems for drinking and industrial water supply

Compression ball valve

Shut-off valves of this modification are provided for blocking the flow of transported liquid (water, chemicals) in water supply lines, irrigation facilities, and others The locking element is made of high-strength polypropylene, has excellent performance and characteristics: it does not corrode, there is no possibility of overgrowth The crane retains its working qualities even after the water inside it freezes

The minimum service life is 20 years With proper Assembly and disassembly, the product can work properly when reused multiple times Withstands maximum operating pressure up to 1.6 MPa The temperature of the transported liquid can reach a maximum limit of 45 °C

Water pipes PE

Products are manufactured according to GOST 18599-2001 They have found application in the construction of water supply systems for drinking or technical purposes, in the installation of irrigation devices, in the construction of swimming pools and fountains The process of raising water from artesian wells is also not complete without PE pipes

Products are produced in the form of straight segments of a certain length and in bays containing 100 or 200 meters of pipe A mandatory requirement for products is absolutely smooth surfaces both outside and inside The exception is a slight undulation and barely noticeable stripes running along At the same time, the wall thickness must remain within the regulatory framework The presence of bubbles, cracks, foreign inclusions and substances, shells is strictly excluded

Pipes used in water supply systems are available in black, blue in all shades without restriction, or black with longitudinal blue stripes The blue marking bars (there should be a minimum of three bars) should be placed in a circle at the same distance from each other

Main characteristics of PE pipes used in water supply systems:

1. Brand of material Two types are used: PE80 (good performance, withstands significant operating pressure, and is optimal for designing water supply networks with a diameter of up to 90 mm) and PE100 (used in the manufacture of large-diameter pipes that are used in the installation of cold water supply communications)

2. The coefficient of resistance to pressure The indicator is equal to the ratio of the pipe diameter to the wall thickness The lower the index, the higher the strength of the pipes and Vice versa

3. Diameter Pipes are produced with a cross section of up to 110 mm

Precautions when laying the pipes

Areas of soil under the pipeline system should not contain large elements, such as rocks or other solid objects that can damage the pipes Before laying the pipeline, it is necessary to place a substrate of sand or fine gravel, which is carefully compacted The thickness of the substrate must be 10 cm or more

HDPE pipe is placed in a prepared ditch so that the joints are submerged in sand or gravel When transporting pipes, the vehicle body must be free of sharp, piercing and cutting objects that can damage plastic products