PE-Xa is a cross-linked polyethylene pipe produced using a peroxide cross-linking process, which creates a strong three-dimensional network structure in the material. This process imparts high strength, elasticity, and resistance to rupture and temperature and pressure fluctuations, making the pipes suitable for heating and water supply systems. PE-Xa is one of three main methods for cross-linking polyethylene, along with peroxide (PE-Xa), silane (PE-Xb), and electron beam (PE-Xc). The peroxide method (PE-Xa) is considered one of the best, despite its higher production cost, as it ensures the most uniform structure of the material.
DN in plumbing stands for diamètre nominal (French for "nominal diameter") and is a metric system for specifying the approximate internal diameter of a pipe in millimeters. It is used in Europe and other regions to standardize pipe sizes, making it easier to select compatible fittings, valves, and other components. A DN rating is a nominal size and the actual internal diameter can vary, but it provides a consistent reference for sizing.
Al is the chemical symbol for the element aluminum (Al), a light, strong, and ductile silvery-white metal widely used in industry and everyday life due to its high thermal and electrical conductivity, corrosion resistance, and ease of processing.
PE is an abbreviation for polyethylene, one of the most common thermoplastic polymers in the world, produced by the polymerization of ethylene. It is a lightweight, chemically resistant, white material that becomes transparent in thin layers and is widely used to produce packaging materials, films, pipes, bottles, and other products.
PA (Polyamide) is a group of synthetic thermoplastic polymers with high strength, wear resistance, good impact resistance, and heat resistance. Polyamides include well-known materials such as nylon, capron, and perlon. They are widely used in the textile industry for clothing and other products, as well as in mechanical engineering, aviation, and medicine for the production of structural plastic parts.
RAU - Rehau technologies.
Phenolic resin foam is a two-component, self-expanding, highly fire-resistant material used for rapid void filling, ventilation control, and fire suppression, particularly in underground mining.
PX is a marking indicating the sleeve material, specifically PVDF (polyvinylidene fluoride) or PPSU (polyphenyl sulfone), which provides high strength, durability, and deformation resistance, as well as compliance with sanitary standards.
PVDF or polyvinylidene fluoride is a thermoplastic fluoropolymer characterized by high chemical resistance, mechanical strength, and thermal stability. This material is resistant to UV radiation, fire, aggressive chemicals, and wear. Due to its properties, PVDF is used in various industries, including chemicals, semiconductor manufacturing, pharmaceuticals, and for the manufacture of pipes, sheets, films, and coatings.
PPSU (polyphenyl sulfone) is a high-performance amorphous thermoplastic polymer with outstanding impact strength, high thermal and chemical resistance, and excellent hydrolysis resistance (used, among other things, in medical applications for sterilization). This is a transparent, amber-colored plastic used in industries such as healthcare, aviation, automotive, plumbing, and microelectronics.
SDR 7.4 and/or 11 in pipe markings indicate the Standard Dimension Ratio (SDR), which is the ratio of the pipe's outside diameter to its wall thickness. A low SDR value (a smaller number) indicates a pipe with thicker walls and, therefore, greater strength, while a high SDR value indicates a thinner wall. Thus, SDR 7.4 is a designation for a pipe with a specific diameter-to-wall-thickness ratio, which determines its strength and working pressure.
LX refers to fittings (sleeves, elbows), meaning these fittings are made of brass. LX brass fittings are used in water supply and heating systems for installing cross-linked polyethylene pipes using the axial pressing method, ensuring durability, reliability, and a leak-proof connection.
PVC (polyvinyl chloride) is a thermoplastic polymer derived from vinyl chloride and is one of the most common and versatile types of plastic. In its pure form, it is a colorless, transparent plastic with high chemical resistance, but additives can make it rigid, soft, transparent, or opaque. PVC is used in the production of pipes, window profiles, flooring, awning and banner fabrics, and packaging.
RX+ is a lead-free red bronze used to manufacture fittings (connecting elements) in water supply and heating systems. This material is chosen for its high resistance to various types of corrosion, including dezincification and stress corrosion, ensuring the hygiene and durability of utility systems.
SX refers to heating and water supply system components, specifically fittings (e.g., L-shaped pipes or reducers) and compression fittings made of stainless steel for connecting cross-linked polyethylene (PE-Xa) pipes.
PP-R (polypropylene random copolymer) is a high-quality polymer material used in the production of piping for hot and cold water supply systems, as well as for heating systems, due to its heat resistance, strength, and durability. Its molecular structure allows it to maintain its integrity at high temperatures (up to +140°C) and even when exposed to low temperatures, making it a versatile solution for various engineering systems.
+G - Rehau gas supply systems.
Rp in plumbing, denotes a cylindrical internal thread. It indicates the type of thread used in pipe and fitting connections, where the letter R refers to the thread type (cylindrical), and p refers to the internal thread.
R in plumbing, denotes an external tapered pipe thread (BSPT according to ISO standard R7, while Rc stands for internal tapered, and Rp for internal cylindrical). This thread is used in leak-tight connections, where a seal is achieved by compressing the thread when the fitting is screwed in, and requires the use of a sealant.
G in plumbing, refers to a standard straight pipe thread (BSPP), used to connect pipes and fittings. The letter G indicates the thread type and its cylindrical shape, and the number following it (e.g., 1/2", 3/4") indicates the nominal bore of the pipe in inches.
ABS is a thermoplastic polymer, a copolymer of acrylonitrile, butadiene, and styrene. It features high impact resistance, chemical resistance, moisture resistance, and temperature resistance, as well as good processability and paintability.
MeplaFix is an adapter/reducer used in water supply systems to connect pipes of different diameters. It ensures reliable and high-quality connections between pipes, such as 16 mm and 20 mm, or other diameters, and is a component of the Geberit Volex system.
PPA (Polyphthalamide) is a high-performance semi-aromatic polyamide that belongs to the nylon family, but has superior mechanical properties, heat resistance, and lower moisture sensitivity compared to traditional nylons. PPA is used in the automotive, electronics, and other industries that require high heat and chemical resistance, excellent strength, and dimensional stability.
PS is polystyrene, a thermoplastic polymer produced by the polymerization of styrene. It is a transparent and rigid plastic widely used in the production of disposable tableware, food packaging, appliance housings, toys, and insulation materials. There are different types of polystyrene, including expanded polystyrene (EPS) and high-impact polystyrene.
Link - Rehau Smart Link connection system.
EPDM is a synthetic rubber (ethylene propylene diene monomer) that is an elastic, weather-resistant, and durable material with good sealing properties. It is produced from ethylene, propylene, and a diene monomer, giving it resistance to ozone, sunlight, and many chemicals. EPDM is widely used to make seals, gaskets, and membranes, as well as in the sports and flooring industries.
Polyoxymethylene (POM, polyacetal, polyformaldehyde) is a semicrystalline thermoplastic engineering plastic known for its high strength, hardness, low coefficient of friction, wear resistance, and dimensional stability. It is widely used as a self-lubricating structural material to replace metals and alloys in various industries, including mechanical engineering, automotive, and consumer electronics.
G3/4" Eurocone fitting is a sealed and reliable connection between plastic (cross-linked polyethylene, metal-plastic), copper, or steel pipes and fittings or a distribution manifold with a corresponding Eurocone connection. The G3/4" designation indicates the connecting thread size – 3/4 inch. The connection itself consists of a union nut, compression ring, and nipple, which seal the pipe by tightening the nut.
Polyurethane foam (PUF) is a lightweight, gas-filled material resembling hardened foam. It consists of a cellular structure filled with gas and solid polyurethane. It can be rigid (for thermal insulation) or flexible (foam rubber, for furniture). PUF is valued for its low thermal conductivity, strength, durability, and versatility in construction and manufacturing.
PS/PPO is most likely polystyrene blended with polyphenylene oxide (or polyphenylene ether, PPE). This blend, also known as MPPO or modified polyphenylene oxide, is an engineering thermoplastic that combines the properties of both materials: the high strength and heat resistance of PPO, and the improved processability and impact resistance of polystyrene.
ASA (acrylonitrile styrene acrylate) is a weather-resistant ABS plastic alternative developed for 3D printing and offering improved resistance to UV radiation, weather, chemicals, and heat. These properties make ASA ideal for manufacturing outdoor components, such as automotive parts, outdoor device housings, and lighting components.
PP (polypropylene) is a thermoplastic polymer obtained by the polymerization of propylene and belongs to the class of polyolefins. It is characterized by high chemical resistance, heat resistance, mechanical strength, electrical insulating properties, and low density.
SBR (styrene-butadiene rubber) is the most common type of synthetic rubber, produced by the polymerization of styrene and butadiene, known for its versatility and wear resistance.
PA 66 GF 60 is a polyamide 66 (PA 66) reinforced with 60% glass fiber (GF). It is a durable engineering plastic that combines high mechanical strength, rigidity, wear resistance, and thermal resistance, making it suitable for applications requiring durability and high performance.
NBR (nitrile rubber) is a synthetic rubber (nitrile butadiene rubber) valued for its high resistance to oils, fuels, and many chemicals. It is widely used to manufacture seals, cuffs, and other rubber products in the automotive, aerospace, and mechanical engineering industries due to its wear resistance.
Intuplast R is a black fire-retardant material used to create fire stop cuffs designed for installation inside walls and ceilings.
PE-RT (Polyethylene of Raised Temperature Resistance) is a polyethylene with a unique molecular structure that requires no cross-linking to achieve strength and heat resistance. It is used to manufacture pipes for cold and hot water supply, heating, and underfloor heating systems, providing flexibility, high-temperature resistance, and ease of installation, including welding.
EPS (Expanded PolyStyrene) is a lightweight, rigid organic material produced by foaming polystyrene beads with steam. It is widely used in construction for thermal and sound insulation, as well as as a packaging material due to its low thermal conductivity and moisture resistance.
Neopor is graphite-based expanded polystyrene (EPS), an improved version of standard white foam. By adding microscopic graphite particles that reflect and absorb thermal radiation, Neopor offers significantly improved thermal insulation properties, allowing the use of thinner boards for the same performance.
Fiber is a fine synthetic or natural fiber used in construction as a reinforcing additive to concrete, mortar, and mixtures to increase their strength, crack resistance, and durability. When added to a mixture, it forms a three-dimensional network that prevents microcracks and improves the performance properties of materials such as semi-dry screeds or plaster.
Push-fit is a quick-release fitting system that allows pipes to be connected without tools, simply by pushing the pipe into the fitting. These fittings contain a stainless steel collet with teeth for gripping the pipe and a sealing ring, ensuring a tight seal without restricting the pipe's cross-section.
EPP (Expanded Polypropylene) is a lightweight, durable, and resilient closed-cell foam material characterized by high impact resistance, excellent thermal insulation, buoyancy, and resistance to water and chemicals. Due to these properties, EPP is widely used in the automotive industry for interior and protective components, as well as in packaging, household appliances, and sporting equipment.
KVS is the flow rate coefficient of a fully open valve, indicating the volume of water (in m³/h) at 20°C that passes through the valve under a pressure differential of 1 bar (or 0.1 MPa). This is the primary valve characteristic, indicating its ability to pass fluid when fully open.
PC is polycarbonate, a transparent thermoplastic known for its high strength, impact resistance, heat resistance, and optical clarity. It is used to manufacture bulletproof glass, protective screens, compact discs, automotive components, and much more.
PBT (polybutylene terephthalate) sensing element is a component of a measuring device or sensor made of PBT plastic that directly senses the measured value and converts it into an electrical signal. As a structural material, PBT has high strength, rigidity, and good dimensional stability, making it suitable for various sensing elements, such as motion or pressure sensors.
The CE mark confirms that a product complies with the safety, health, and environmental requirements of the European Union. This mark is mandatory for many products sold in the EU and other countries, guaranteeing their safety for consumers and compliance with European standards.
Quick Change – quick replacement of the expansion head. The patented quick-change system makes operation even simpler and faster. Assembly of the QC expansion head requires only a quarter turn. The new generation of QC1 expander heads is designed for sizes 16-32 for the RAUTITAN stabil and flex systems.