Commercial buildings place demands on fire fighting pipelines that ordinary water supply networks never face. Tall towers stack dozens of stories of static head on top of each other, automatic sprinkler systems require continuous pressure at the most remote sprinkler head, and building codes increasingly require that pipes running through shafts, ceilings and occupied floors do not propagate fire. High pressure fire resistant HDPE pipe has emerged as a credible alternative to steel and galvanized pipe for these duties because it resists corrosion, is lighter to install, and can be welded into leak free networks. Producing such pipe, however, is not a standard PE pipe job. The extrusion equipment must handle a pressure rated, thick wall, large diameter product, and when flame retardancy is specified it must also process a heavily filled compound without degrading it.
Faygo is a Wanplas factory with 22 years of dedicated experience in plastic pipe and profile extrusion lines. Operating three specialized factories with a 26,650 square meter production base in Zhangjiagang, only two hours from Shanghai airport, and holding 13 national patents including 8 invention patents, Faygo builds HDPE линия экструзии трубs covering 12 to 575 mm diameter with wall thickness up to 6.5 mm, all Сертифицировано по стандартам CE и ISO, and tested for 72 hours of continuous running before shipment. This guide walks engineers, project owners and equipment buyers through the technical skeleton of an extrusion line purpose built for commercial building fire fighting pipelines, the material science behind fire resistant HDPE, the configuration of each line section, the process window that keeps a flame retardant compound stable, and the quality system that proves the pipe is fit for a life safety system.
Application Scenarios and Technical Requirements
A fire fighting pipeline inside a commercial building is not a single pipe but a hierarchy of networks, each with its own pressure profile, routing and acceptance rules. Selecting the right extrusion target starts with mapping which network the pipe will serve.
The automatic sprinkler branch and main piping is the most visible use. Sprinkler systems designed with reference to NFPA 13 demand that water reach the hydraulically most remote sprinkler at a defined minimum pressure, which forces the main to carry a healthy margin of static and dynamic pressure. The hydrant feed pipe is a higher flow, lower density network used by fire fighters through landing valve connections. The buried fire ring main loops a building or campus underground, often at lower fire exposure but under traffic and soil loading. The foam extinguishing delivery pipe carries foam concentrate or premix in special hazard areas such as data centers and parking basements.
The difference from ordinary water supply pipe is twofold. First, fire pipe must satisfy both a pressure class and a flame retardancy class at the same time. Pressure classes for this duty are typically PN10, PN16 or PN20, realized through SDR 17, SDR 11 or SDR 9 geometries. Second, the material must not become a fire path. A buried ring main can use standard PE100 because soil cover isolates it, but any pipe run in a shaft, ceiling void or occupied floor that crosses fire rated construction usually needs flame retardant modification so that the pipe itself does not raise the fire load or spread flame along its length.
Commercial buildings add structural complications that the extrusion line indirectly answers. A 100 meter tall tower imposes about 1.0 MPa of static pressure purely from the water column, and a water hammer event from a fast closing valve can multiply the instantaneous pressure to 1.5 to 2.0 times the working pressure. That is why thick wall SDR 11 or SDR 9 pipe, not thin SDR 17, is common on upper zones. Support spacing of pipe hangers, and fire stopping where the pipe penetrates a floor slab, are field details, but they trace back to a pipe that leaves the factory with certified wall thickness, roundness and weldability.
Pressure Class, SDR и толщина стенки Reference
The table below maps the three common fire duty pressure classes to SDR geometry and the resulting minimum wall thickness at representative diameters. Wall values follow the standard relation e equals nominal diameter divided by SDR, rounded to normal commercial minimums.
| Pressure class | СВО | Основы проектирования | Wall at DN63 (mm) | Wall at DN110 (mm) | Wall at DN160 (mm) | Wall at DN200 (mm) |
|---|---|---|---|---|---|---|
| PN10 | ПН ISO 18553 | PE100, C=1.25 | 3.7 | 6.6 | 9.5 | 11.9 |
| PN16 | SDR 11 | PE100, C=1.25 | 5.7 | 10.0 | 14.5 | 18.2 |
| PN20 | SDR 9 | PE100, C=1.25 | 7.0 | 12.3 | 17.8 | 22.2 |
Read the table as a target spec sheet for the extrusion line. A line that claims PN20 SDR 9 capability at DN200 must hold a finished wall of about 22 mm within tight tolerance, which is a thick wall large diameter extrusion problem, not a thin wall commodity problem. The tolerance band narrows as wall thickness grows, because a small absolute error on a 22 mm wall is a large fraction of the pressure reserve, so the calibration sleeve, the vacuum level and the haul off speed must be held steady enough that the line delivers the same wall at the start of a coil and at the end of a six meter stick. This is why the line is specified with closed loop wall thickness control rather than with manual adjustment alone.
Commercial building layout also drives diameter choice. A high rise typically splits the system into pressure zones, with the lower zone fed by a larger diameter PN10 or PN16 main and the upper zone by a smaller diameter but thicker wall PN20 riser, because the static head at the base of a tall column would overstress a thin wall pipe. The extrusion line therefore has to be flexible across diameters and SDRs without a complete retooling, which favors a die head built in staged sizes and a calibration system that swaps sleeves rather than replacing the whole tank.
Система материалов for Fire Resistant HDPE Pipe
The material system is the technical core of fire resistant HDPE pipe. The base resin delivers the pressure rating and the long term durability; the flame retardant package delivers the fire behavior; and the way those two are married decides whether the extrusion line can make saleable pipe at all.
Base Resin: PE100 and PE100-RC
Fire fighting pipe demands a pressure pipe grade polyethylene. PE100 is the workhorse, with a minimum required strength of 10.0 MPa and a design stress of 8.0 MPa at a design coefficient C of 1.25. PE100-RC is the crack resistant variant engineered for resistance to slow crack growth, verified by the notched pipe test at 80 degrees C for at least 8760 hours. For a life safety system that may sit partially full and unpressurized for years, then surge to full pressure in an emergency, that slow crack growth resistance is a real asset.
Типичные физические параметры базового смолы: скорость течения расплава 0,2-0,5 г в течение 10 минут при температуре 190 °C и нагрузке 5 кг, плотность 0,949-0,960 г на кубический сантиметр и хорошая устойчивость к трещинам под воздействием внешних факторов. Низкая скорость течения свидетельствует о высоком молекулярном весе смолы, которая является прочной, но жесткой для расплавления, что имеет значение при добавлении тяжелого антипиренового наполнителя сверху.
Three Flame Retardant Routes Compared
Three technical routes exist to make PE fire resistant. Each trades off flame performance, mechanical retention, processability and compliance differently. The table below is the decision backbone for the compound and therefore for the extrusion line design.
| Route | Additive and loading | Limiting oxygen index | UL 94 at 3 mm | Mechanical impact | Трудность обработки | Compliance |
|---|---|---|---|---|---|---|
| Halogen free Mg(OH)2 / Al(OH)3 | 55 to 65 percent, superfine 1.5 to 3 micron, silane treated | 28–32 процента | V-0 | Большой спад (высокая добавка) | Высокий (вязкость 2–4 раза) | RoHS, REACH friendly |
| Intumescent (APP / pentaerythritol / melamine) | 22 to 30 percent, water resistance coating | 27 to 30 percent | V-0 | Smaller drop | Medium, heat sensitive | RoHS, REACH friendly |
| Halogenated | Low loading, high efficiency | Высокая степень очистки | V-0 | Low drop | Низкий уровень | Restricted by RoHS, REACH |
Путь с безгалоговым гидроксидом магния или гидроксидом алюминия является наиболее распространенным выбором для европейских и большинства коммерческих строительных проектов, поскольку он не содержит галогенов и практически не выделяет дыма. Для достижения ограничительного показателя содержания кислорода от 28 до 32 процентов и UL 94 V-0 при 3 мм требуется загрузка от 55 до 65 процентов. Такая загрузка оказывает жестокое воздействие на обработку: вязкость расплава увеличивается в два-четыре раза, свойства на разрыв и удар снижаются, а наполнитель должен быть очень мелким, от 1,5 до 3 микрона, и иметь поверхностную обработку с помощью силикатового связующего вещества, иначе он просто агломерируется.
The intumescent flame retardant route uses ammonium polyphosphate, pentaerythritol and melamine. At 22 to 30 percent loading it forms a charring, insulating layer that suppresses heat release, reaching limiting oxygen index 27 to 30 percent. It costs less mechanical property than the mineral route and is lighter to process, but it is sensitive to water and usually needs a moisture resistant coating or masterbatch form, otherwise it bleeds performance in buried or damp service. The halogenated route is the most efficient and easiest to process but is constrained by RoHS and REACH and is largely not accepted in commercial building fire specifications, so it is mentioned here only for completeness of the comparison.
How High Filling Reshapes the Extrusion
Adding 55 to 65 percent mineral filler does more than raise viscosity. It accelerates screw and barrel wear, so the line needs a bimetallic barrel of HRC 58 to 62 and a coated or specialized screw. Poor dispersion of the filler creates white specks, agglomerates and weak zones that ruin both mechanical strength and flame retardancy at once. Die head pressure climbs to 25 to 40 MPa because the melt is stiff and the die land must be long enough to build pressure yet short enough not to over shear. The flame retardant also tends to stagnate and decompose in any dead spot of the flow channel, which is why the die head must have a dead corner free flow path.
Fire Performance Metrics
Огнестойкость готового труба описывается набором показателей: ограничительный индекс кислорода, класс UL 94, снижение скорости выделения тепла при конусной калориметрии (обычно на 40–65 процентов ниже, чем у незаполненного ПЭ), рейтинг плотности дыма, поведение горящих капель и класс горючести строительных материалов, например EN 13501-1 класс B или C. Для пожарного трубопровода цель не в том, чтобы сделать трубу негорячей, а в том, чтобы предотвратить ее превращение в путь распространения пламени и ограничить дым, чтобы пути эвакуации оставались доступными.
Production Конфигурация линии
Линия экструзии труб из ПЭВД с огнестойкостью представляет собой последовательность точно настроенных станций. Каждая станция определяется по толщине стенки, большому диаметру и высокому уровню наполнителя. Ниже приведена инженерная базовая конфигурация; выбор реального оборудования будет описан в отдельном разделе.
Основной экструдер
The main extruder is a single screw unit with screw diameter from 75 to 150 mm and an L/D ratio of 33 to 38 to 1. The screw is a low shear barrier design with a dedicated mixing section that homogenizes the highly filled compound without generating excess shear heat. Throughput runs 300 to 1200 kg per hour and installed power 132 to 400 kW. For ultra high filler loadings, a two stage extrusion system is used: a first stage twin screw compounder does the mixing and a second stage single screw forms the pipe, which separates the heavy mixing work from the shaping work and protects surface quality.
Головка экструдера
Головка пресса представляет собой барабанного типа или трубчатый спиральный пресс, покрывающий диаметр от DN 63 до 630 мм в ступенчатых размерах. Поскольку антипирен имеет тенденцию к застойным процессам и разложению, путь течения спроектирован без мертвых углов, а в головке предусмотрены 4-8 контролируемых зон нагрева, чтобы температура расплава могла регулироваться без локального перегрева. Чистая геометрия потока здесь не является роскошью; это разница между чистой трубой и такой, на которой есть обгорелые полосы.
Размерование и охлаждение вакуумом
The vacuum calibration tank holds negative pressure from 0.02 to 0.08 MPa with a sizing sleeve matched to the SDR of the pipe. Spray water is kept at 15 to 20 degrees C and the tank is built from 2 to 3 sections of 6 meters each. After sizing, 3 to 5 cooling tanks with graded water temperature pull the heat out gradually. Thick wall large diameter pipe carries a lot of internal heat, so an inner pipe cooling system that circulates coolant through the bore is often added to shorten the line length and tighten the crystallinity control.
Haul Off, Cutting and Downstream
The haul off is a caterpillar type with 8 to 16 belts, pull force 20 to 120 kN, and line speed 0.5 to 15 meters per minute; thick wall large diameter pipe runs slow. Cutting is done by a планетарный резак that slices without generating dust, keeping the cut square to within 0.5 degree and adding a chamfer for easy jointing. Small diameter pipe up to 63 mm is coiled on a winder, while large diameter pipe is cut to fixed 6 or 12 meter lengths onto a tipping rack. Онлайн-инспекция uses ultrasonic wall thickness measurement with 4 to 8 probes, laser diameter gauging and meter marking ink jet.
Auxiliary Systems
High filler extrusion lives or dies on the auxiliaries. A central feeding system with loss in weight meters doses the flame retardant with plus or minus 0.5 percent accuracy; volumetric dosing is not accurate enough at these loadings. The flame retardant is hygroscopic, so a dehumidifying dryer holds it at 80 degrees C for 3 to 4 hours down to a minus 30 degrees C dew point before it enters the hopper. A regrind closed loop returns start up and trim scrap back into the process without contaminating the virgin grade.
Complete Line Equipment Конфигурация
В таблице ниже весь процесс объединен в один блок спецификаций, по которому покупатель может делать предложения.
| Станция | Технические характеристики | Диапазон / параметр | Примечание для пожарного трубопровода |
|---|---|---|---|
| Основной экструдер | Одно винтовое устройство, низкая барьера трения + смешивание | 75-150 мм, L/D 33-38 | Биметаллический цилиндр HRC 58–62 |
| Throughput | Output rate | 300-1200 кг/ч | High filler lowers rate |
| Установленная мощность | Привод и нагрев | 132 to 400 kW | Зависит от диаметра |
| Головка для штампа | Basket or spiral mandrel | DN 63 to 630 mm, 4 to 8 zones | No dead corner flow |
| Калибровка в вакууме | Насадка для размера по SDR | 0.02 to 0.08 MPa, 6 m x 2 to 3 | Вода 15–20 °C |
| Охлаждение | Spray tanks, graded | 3 to 5 tanks, inner cooling option | Needed for thick wall |
| Haul off | «Катерпиллар» | 8-16 ремней, 20-120 кН | Speed 0.5 to 15 m/min |
| Резак | Планетарный, без пыли | Squareness within 0.5 deg | Chamfer added |
| Онлайн-инспекция | Ultrasonic + laser | 4 to 8 thickness probes | Маркировка измерительных приборов |
| Auxiliary | Loss in weight, dryer | Дозирование ± 0,5 процента, 80 °C 3-4 часа | Dew point minus 30 C |
Process Parameters
Окно процесса — это то место, где выделяется или теряется антипирен ПЭ. Если слишком много трения, то добавка разлагается внутри барабана; если слишком мало, то смесь не расплавляется и имеет неравномерный состав. Нижнее окно является инженерным целевым показателем для безгалогенного или интумизирующего огнестойкого ПЭ.
Temperature Profile and Melt Limit
For flame retardant PE the barrel zones are set around 165, 175, 185, 190, 190, 185 degrees C, with the die head at 185 to 195 degrees C. The single most important rule is that the melt temperature must stay below 210 degrees C, because intumescent systems begin to decompose above 220 degrees C and the mineral route starts to lose water of hydration above roughly 200-220 градусов Цельсия, both of which scorch the compound and release gas that shows up as silver streaks or burn marks in the pipe.
Скорость вращения, давление и управление в закрытом цикле
Screw rotation speed is held low, 25 to 70 rpm, deliberately, because high filler melt generates shear heat fast and a slow screw keeps the melt cool and the motor load manageable. Давление плавления in the head runs 25 to 40 MPa. Уровень вакуума, the graded cooling water temperature, and the haul off speed are tied into a closed loop with the ultrasonic wall thickness gauge so that as the line speed or melt behavior drifts, the wall thickness is held inside tolerance automatically.
Shutdown Purging
When the run ends, the high filler compound must be purged from the barrel with pure PE. If flame retardant compound is left to sit and degrade in the screw and die, it chars, sticks and forces a long clean out before the next job. A clean purge protects the bimetallic barrel and the die land and shortens changeover.
Таблица параметров процесса температуры и давления
| Параметр | Питание зоны 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 meter | Головка для штампа |
|---|---|---|---|---|---|---|
| Температура барабана (C) | 165 | 175 | 185 | 190 | 190 | 185 to 195 |
| Screw speed (rpm) | 25 to 70, kept low for high filler | |||||
| Давление плавления (MPa) | 25 до 40 | |||||
| Температура плавления limit (C) | Must be below 210, IFR decomposes above 220 | |||||
| Vacuum (MPa) | 0.02 to 0.08 | |||||
Quality Inspection and Standards
A fire fighting pipe is a life safety component, so the quality system is strict and documented. The pipe must pass pressure endurance, material stability and flame behavior tests, and the line must be able to demonstrate every one.
Гидравлическое давление
Internal pressure resistance is verified at three conditions: 20 degrees C for 100 hours at 12.4 MPa, 80 degrees C for 165 hours at 5.5 MPa, and 80 degrees C for 1000 hours at 5.0 MPa. These are the standard PE pipe endurance points and they confirm that the wall thickness and resin grade actually deliver the rated pressure over time.
Material and Pipe Property Tests
The melt flow rate change after processing must stay within plus or minus 20 percent of the virgin resin, proving the compound was not thermally damaged. Время индукции окисления; at 200 degrees C should be 20 minutes or more, showing retained thermal stability. Продольное реверсирование must be 3 percent or less, elongation at break 350 percent or more, and the pipe must pass the 0 degree C falling weight impact test. Устойчивость к медленному росту трещин; is checked by the notched pipe test, and rapid crack propagation by the relevant小车 test method.
Flame and Combustion Classification
Пожаробезопасность is measured by limiting oxygen index per GB/T 2406, the UL 94 classification, the building material combustion classification per EN 13501-1, and the Chinese building material fire performance grading per GB 8624. For the pipe system as installed, the relevant pipe standards are ISO 4427, EN 12201, GB/T 13663 and ASTM F714, while the sprinkler system design reference is NFPA 13 and the buried fire plastic pipe recognition concepts are captured in UL 1285 and FM 1613, all referenced here as standard names only.
Jointing
Fire resistant HDPE pipe is joined by the same methods as standard PE: electrofusion and butt fusion welding, with welding parameters set to meet fire acceptance requirements, plus flanges at valves and equipment. Welding procedure qualification and records are part of fire system acceptance, so the pipe must leave the factory with consistent, weldable ends.
Quality Inspection Items and Standards
| Test item | Condition / limit | Standard reference | Почему это важно for fire pipe |
|---|---|---|---|
| Hydrostatic 20 C 100 h | 12.4 MPa pass | ISO 4427, GB/T 13663 | Класс давления proof |
| Hydrostatic 80 C 165 h | 5.5 MPa pass | EN 12201, ASTM F714 | Долгосрочная устойчивость при высоких температурах |
| Hydrostatic 80 C 1000 h | 5.0 MPa pass | ISO 4427 | Lifetime extrapolation |
| MFR change | Within +/-20 percent | ISO 1133 | No thermal damage |
| ОИТ | 20 min at 200 C min | ISO 11357 | Термостабильность |
| Продольное реверсирование | 3 percent max | ISO 2505 | Dimensional stability |
| Удлинение при разрыве | 350 percent min | ИСО 6259 | Твердость |
| Удар падающим весом | Pass at 0 C | ГОСТ ISO 3127 | Toughness in cold |
| Медленное рост трещин | 8760 h at 80 C | ISO 13479 (NPT) | PE100-RC proof |
| Limiting oxygen index | 28–32 процента (mineral) | GB/T 2406 | Flame retardancy |
| UL 94 | V-0 at 3 mm | UL 94 | Flammability class |
| Building combustion class | B or C | EN 13501-1, GB 8624 | Fire stopping compatibility |
Line Economy and Operation Maintenance
Владея трубопроводом из HDPE с высоким содержанием наполнителя, отличается от владения стандартным трубопроводом из ПЭ, поскольку высокое содержание наполнителя повышает энергозатраты, износ и трудозатраты, а также увеличивает требования к качеству. Ниже приведены экономические показатели, выраженные в относительных величинах, энергия на тон, коэффициенты износа, время перехода и размер команды. Никогда не указываются в денежном выражении.
Энергия, износ и персонал
Specific energy consumption runs 0.30 to 0.45 kWh per kg, higher at the top of the range because the high filler melt is stiff and the screw works harder. Screw and barrel life under high filler service is only 40 to 60 percent of that under unfilled PE, which is exactly why the bimetallic barrel of HRC 58 to 62 is not optional. Changing a product size takes 60 to 120 minutes, and a typical crew is 3 to 4 operators per shift.
Common Faults
The faults unique to this duty are poor flame retardant dispersion shown as white specks or agglomerates, wall layer separation from uneven melting, inner bore burn from local over temperature, wall eccentricity from calibration drift, hydrostatic failure from under thickness, and rough surface from unstable melt. Most trace back to dispersion quality, temperature control and die cleanliness.
Defect Troubleshooting
| Дефект | Вероятная причина | Действие |
|---|---|---|
| White specks / agglomerates | Poor filler dispersion, coarse particle | Используйте мелкоизмельченный наполнитель, увеличьте смешивание, проверьте дозировку |
| Разделение слоев стенки | Uneven melt, wrong temperature profile | Adjust barrel zones, verify screw mixing section |
| Inner bore burn mark | Melt over 210 C, dead spot in die | Lower melt temp, purge, redesign flow path |
| Ексцентричность стенки | Calibration or haul off misalignment | Center die, check vacuum, recalibrate gauge loop |
| Hydrostatic failure | Under thickness, degraded resin | Tighten wall loop, control MFR change, OIT |
| Rough surface | Unstable melt, moisture in filler | Improve drying, lower shear, clean die |
Energy Consumption and Investment Index
The table indexes line investment against a baseline DN110 HDPE pressure pipe line set at 100 points. Index values are relative engineering estimates, not currency, and help a buyer size budget tier without quoting a price.
| Конфигурация | Investment index (baseline 100) | Энергия на тонну | Wear cost level | Payback horizon |
|---|---|---|---|---|
| Baseline DN110 HDPE pressure pipe | 100 | 300 to 350 kWh/t | Низкий уровень | Medium (24 to 36 months) |
| Thick wall SDR 9 large diameter | 115 to 135 | 330 to 400 kWh/t | Средний уровень | Средний уровень |
| Заполненный минеральным огнезащитным веществом | 130 to 160 | 380-450 кВтч/т | Высокая степень очистки | Средняя до высокая степень жесткости |
| Intumescent filled | 125 to 150 | 350 to 420 kWh/t | Средний высокий | Средняя до высокая степень жесткости |
| Two stage compounding + forming | 160 to 200 | 400 to 450 kWh/t | Высокая степень очистки | Высокая степень очистки |
Выбор и обслуживание линии Faygo Real
When the engineering reaches the question of which actual machine to install, Faygo offers линия экструзии трубs built on the same technical principles described above. The specifications below are drawn from Faygo’s real product families, not from generic equivalents.
Faygo HDPE Линия экструзии труб (Core 12 to 575 mm Series)
Faygo’s core pipe extrusion series covers 12 to 575 mm diameter across PE, PVC and PP materials with wall thickness up to 6.5 mm, directly serving water supply, drainage, gas, communication and agricultural irrigation networks. For fire fighting duty the PE capability is configured with the low shear barrier screw, bimetallic barrel and loss in weight dosing described earlier. The line is Сертифицировано по стандартам CE и ISO and undergoes a 72 hour continuous running test before shipment.
| Параметр | Faygo HDPE pipe line |
|---|---|
| Диапазон диаметров | 12 to 575 mm |
| Материалы | ПЭ, ПВХ, ПП |
| Max wall thickness | 6,5 мм |
| Функция шнека | Low shear barrier with mixing section, bimetallic barrel option |
| Управление | Интеллектуальная система управления, электрические компоненты, зарегистрированные в международном масштабе |
| Quality check | 72 hour continuous running test before delivery |
| Сертификация | CE и ISO |
Линия экструзии труб Faygo PP-R/PE-RT
Линия экструзии труб из PP-R и PE-RT производит трубы из PP-R и PE диаметром от 16 до 160 мм и трубы из PE-RT диаметром от 16 до 32 мм. Это меньший по диаметру «брат» основной линии из HDPE и имеет ту же архитектуру интеллектуального управления, те же брендовые электрические компоненты и ту же 72-часовую проверку перед отправкой. Для линий отводов для пожаротушения в диапазоне DN16-DN160 это естественная платформа для получения конфигурации с огнезащитным полиэтиленом PE100.
| Параметр | Faygo PP-R / PE-RT pipe line |
|---|---|
| PP-R / PE pipe range | 16 to 160 mm |
| PE-RT pipe range | 16-32 мм |
| Управление | Интеллектуальная система управления, branded electrical components |
| Quality check | 72 hour continuous running test before delivery |
| Сертификация | CE и ISO |
Требование к рекомендациям по конфигурации
Таблица сопоставляет заявленную потребность проекта с конфигурацией линии Faygo. Компания Faygo, как завод Wanplas, также может организовать соответствующие возможности из группы Wanplas для любого предшествующего смешивания или последующего этапа, которые выходят за рамки самой линии.
| Потребность (диаметр / давление / огнестойкость / вместимость) | Рекомендованная конфигурация Faygo |
|---|---|
| DN63 to 160, PN16, standard PE100, buried ring main | Линия из HDPE с одним шнеком диаметром от 75 до 120 мм, SDR 11. |
| DN160-315, PN20, толстая стенка SDR 9 | Core HDPE line, single screw 120 to 150 mm, inner cooling option |
| DN16 to 160, PN16, flame retardant exposed shaft | PP-R/PE-RT line configured with loss in weight dosing and bimetallic barrel |
| Любой диаметр, минеральный антипирен 55-65 процентов | Single screw low shear barrier + bimetallic barrel HRC 58 to 62, dehumidifying dryer |
| Ультравысокая наполняемость, премиальная поверхность | Two stage twin screw compounder plus single screw forming line |
| 300 to 600 kg/h output | Mid size single screw, 132 to 250 kW installed |
| 800 to 1200 kg/h output | Large single screw 132 to 400 kW, 8 to 16 belt haul off |
Служба поддержки и обслуживания
Faygo delivers more than a machine. Every line is tested for 72 hours of continuous running before shipment so that commissioning risk is removed at the factory, not discovered on the customer floor. Faygo provides customized turnkey solutions covering selection, design, manufacturing, installation and commissioning, plus operator training and lifetime maintenance guidance. The shared Wanplas group policy supplies USD 500 free spare parts per year and warranty replacement, backed by Онлайн-поддержка 24/7. Faygo also offers factory consulting services including water and electricity design, 3D workshop layout, worker configuration and training, new factory construction on a turnkey basis, old machine replacement with zero downtime, and capacity expansion to remove bottlenecks. The factory in Zhangjiagang welcomes customer visits for inspection and sample trial runs.
Часто задаваемые вопросы
What is the difference between fire fighting HDPE pipe and ordinary water supply HDPE pipe?
Fire fighting HDPE pipe must simultaneously satisfy a pressure class such as PN10, PN16 or PN20 with SDR 17, SDR 11 or SDR 9, and a flame retardancy requirement that ordinary water pipes do not carry. Exposed risers and shafts in commercial buildings are usually made from flame retardant modified PE100, while buried ring mains can use standard PE100.
Какая система огнезащитной обработки лучше всего подходит для огнестойкой трубы из ПЭ?
Безгалогеновый гидроксид магния или гидроксид алюминия при загрузке от 55 до 65% достигает предела кислородного индекса от 28 до 32% и UL 94 V-0 при 3 мм, но является самым труднодоступным для обработки. Интумецентный антипирен при 22-30% дает меньшие механические потери. Галоидированные системы ограничены требованиями RoHS и REACH и, как правило, не принимаются для коммерческих строительных проектов.
Почему высокая насыпная плотность увеличивает трудности экструзии?
Высокая нагрузка на огнестойкость увеличивает вязкость расплава в два-четыре раза, повышает износ шнека и барабана, в результате чего для металлокерамических барабанов требуется HRC 58-62, снижает дисперсию и снижает как механические, так и огнестойкие свойства, а также повышает давление на головку пресса до 25-40 МПа.
Какую температуру плавления необходимо контролировать во время экструзии огнестойкого полиэтилена?
For flame retardant PE the melt temperature must stay below 210 degrees C because intumescent systems start to decompose above 220 degrees C. A typical profile is 165, 175, 185, 190, 190, 185 degrees C with the die head at 185 to 195 degrees C.
How is fire resistant HDPE pipe joined on site?
Тот же электросварка и сварка по торцам, используемый для стандартного полиэтиленового трубопровода, с параметрами сварки, установленными для выполнения требований по приемке противопожарной системы. Для соединений с фланцами используются клапаны и интерфейсы оборудования. Записи о сварке являются частью приемки противопожарной системы.
What quality tests prove the pipe is fit for a fire fighting system?
Гидростатическая прочность при 20 °C 100 ч (12,4 МПа), 80 °C 165 ч (5,5 МПа) и 80 °C 1000 ч (5,0 МПа), изменение скорости течения расплава в пределах плюс или минус 20 процентов, время индукции окисления 20 минут и более при 200 °C, продольное реверсирование 3 процента и менее, разрывная прочность 350 процентов и более, а также испытания на горение, включая ограничительный индекс кислорода по ГОСТу ТУ 2406, UL 94 и класс горения зданий по EN 13501-1 или ГОСТу 8624.
Что Faygo поставляет для проекта по экструдированию противопожарного трубопровода?
Faygo, завод Wanplas с 22-летним опытом экструзии труб, поставляет линии экструзии ПЭ труб диаметром от 12 до 575 мм и толщиной стенки до 6,5 мм, с испытанием непрерывной работы в течение 72 часов перед отправкой, установкой под ключ и пуском в эксплуатацию, обучением и бесплатными запасными частями на сумму 500 долларов США в год.
Заключение
High pressure fire resistant HDPE pipe for commercial building fire fighting pipelines is a demanding but well understood extrusion target. The engineering rests on three pillars: a pressure rated PE100 or PE100-RC base, a flame retardant route chosen for compliance and processability, and a line built to handle thick wall large diameter geometry and high filler melt without degrading the compound. The main extruder, dead corner free die head, vacuum sizing, graded cooling, caterpillar haul off, dust free planetary cutting and loss in weight dosing together decide whether the pipe meets PN10 to PN20 pressure ratings and the required flame class.
Faygo, завод Wanplas, builds the линия экструзии трубs that deliver this performance, with real production ranges from 12 to 575 mm diameter, wall thickness up to 6.5 mm, intelligent control, CE and ISO certification, and a 72 hour continuous running test before shipment. Combined with turnkey installation, operator training, USD 500 free spare parts per year and an open factory for inspection and sample trial runs, Faygo gives fire pipe producers a complete, validated production platform.
If you are planning a fire resistant HDPE pipe production line for commercial building fire fighting pipelines, send your target diameter, pressure class, flame retardancy grade and required output. Faygo will prepare a tailored line configuration, invite you to the Zhangjiagang factory for inspection, and run a sample trial on the configured equipment so you can verify wall thickness, pressure rating and flame performance before you commit.
