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 garis ekstrusi pipas covering 12 to 575 mm diameter with wall thickness up to 6.5 mm, all CE and ISO certified, 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.
Kelas Tekanan, SDR dan Ketebalan Dinding 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 | SDR | Dasar desain | Wall at DN63 (mm) | Wall at DN110 (mm) | Wall at DN160 (mm) | Wall at DN200 (mm) |
|---|---|---|---|---|---|---|
| PN10 | SDR 17 | 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.
Material System 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.
Typical physical parameters of the base resin are: melt flow rate 0.2 to 0.5 g per 10 minutes measured at 190 degrees C under 5 kg load, density 0.949 to 0.960 g per cubic centimeter, and good environmental stress crack resistance. The low melt flow rate signals a high molecular weight resin that is tough but stiff to melt, which matters when a heavy flame retardant filler is added on top.
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 | Processing difficulty | Compliance |
|---|---|---|---|---|---|---|
| Halogen free Mg(OH)2 / Al(OH)3 | 55 to 65 percent, superfine 1.5 to 3 micron, silane treated | 28 to 32 percent | V-0 | Large drop (high filler) | High (viscosity 2 to 4x) | 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 | Tinggi | V-0 | Low drop | Low | Restricted by RoHS, REACH |
The halogen free magnesium hydroxide or aluminum hydroxide route is the most common choice for European and most commercial building projects because it is free of halogens and generates little smoke. It needs 55 to 65 percent loading to reach limiting oxygen index 28 to 32 percent and UL 94 V-0 at 3 mm. That loading is brutal on processing: melt viscosity climbs two to four times, tensile and impact properties fall, and the filler must be superfine at 1.5 to 3 micron and surface treated with a silane coupling agent or it simply agglomerates.
Jalur pencegahan kebakaran dengan bahan penekan api menggunakan polifosfat amonium, pentaeritritol, dan melamin. Dengan kadar 22 hingga 30 persen, ia membentuk lapisan pembakaran yang mengisolasi dan menekan pelepasan panas, mencapai indeks oksigen terbatas 27 hingga 30 persen. Harganya kurang mahal dari jalur mineral dan lebih mudah diproses, tetapi ia sensitif terhadap air dan biasanya membutuhkan lapisan tahan air atau bentuk masterbatch, jika tidak, kinerjanya akan menurun dalam layanan yang tertutup atau lembab. Jalur halogenasi adalah yang paling efisien dan paling mudah diproses, tetapi terbatas oleh RoHS dan REACH dan sebagian besar tidak diterima dalam spesifikasi kebakaran bangunan komersial, sehingga hanya disebutkan di sini untuk kejelasan perbandingan.
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
The fire worthiness of the finished pipe is described by a stack of metrics: limiting oxygen index, UL 94 grade, peak heat release rate reduction from cone calorimetry (typically 40 to 65 percent lower than unfilled PE), smoke density rating, burning drip behavior, and the building material combustion class such as EN 13501-1 class B or C. For a fire fighting pipe the objective is not to make the pipe non combustible but to stop it from becoming a flame spread path and to limit smoke so that escape routes stay usable.
Line Produksi Konfigurasi
A fire resistant HDPE garis ekstrusi pipa is a sequence of precisely matched stations. Each station is specified against the thick wall large diameter, high filler duty. The configuration below is the engineering baseline; the real machine selection follows in a later section.
Main Extruder
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.
Die Head
The die head is a basket type or spiral mandrel pipe die covering DN 63 to 630 mm in staged sizes. Because the flame retardant tends to stagnate and decompose, the flow path is designed with no dead corners, and the head carries 4 to 8 individually controlled heating zones so the melt temperature can be profiled without local overheating. Clean flow geometry is not a luxury here; it is the difference between a clean pipe and one with burnt streaks.
Vacuum Sizing and Cooling
Tangki kalibrasi vakuum menahan tekanan negatif dari 0,02 hingga 0,08 MPa dengan selubung pengukuran yang sesuai dengan SDR pipa. Air penyemprot dijaga pada suhu 15 hingga 20 derajat C dan tangki dibangun dari 2 hingga 3 bagian dengan panjang 6 meter masing-masing. Setelah pengukuran, 3 hingga 5 tangki pendinginan dengan suhu air yang teratur menurunkan panas secara bertahap. Pipa berdiameter besar dengan dinding tebal membawa banyak panas internal, sehingga sistem pendinginan pipa internal yang mengalirkan cairan pendingin melalui lubang sering ditambahkan untuk memperpendek panjang jalur dan memperketat kontrol kristalisasi.
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 pemotong planet 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. On line inspection 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 Konfigurasi
The table below consolidates the whole line into one specification block that a buyer can quote against.
| Station | Specification | Range / parameter | Note for fire pipe duty |
|---|---|---|---|
| Main extruder | Single screw, low shear barrier + mixing | 75 to 150 mm, L/D 33 to 38 | Bimetallic barrel HRC 58 to 62 |
| Throughput | Output rate | 300 to 1200 kg/h | High filler lowers rate |
| Tenaga yang terpasang | Drive and heating | 132 to 400 kW | Depends on diameter |
| Die head | Basket or spiral mandrel | DN 63 to 630 mm, 4 to 8 zones | No dead corner flow |
| Vacuum calibration | Sizing sleeve per SDR | 0.02 to 0.08 MPa, 6 m x 2 to 3 | Water 15 to 20 C |
| Cooling | Spray tanks, graded | 3 to 5 tanks, inner cooling option | Needed for thick wall |
| Haul off | Caterpillar | 8 to 16 belts, 20 to 120 kN | Speed 0.5 to 15 m/min |
| Pemotong | Planetary, dust free | Squareness within 0.5 deg | Chamfer added |
| On line inspection | Ultrasonic + laser | 4 to 8 thickness probes | Meter marking |
| Auxiliary | Loss in weight, dryer | Dosing +/-0.5 percent, 80 C 3 to 4 h | Dew point minus 30 C |
Process Parameters
The process window is where flame retardant PE is won or lost. Too much shear heat and the additive decomposes inside the barrel; too little and the compound is unmelted and uneven. The window below is the engineering target for a halogen free or intumescent fire resistant PE.
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 to 220 degrees C, both of which scorch the compound and release gas that shows up as silver streaks or burn marks in the pipe.
Screw Speed, Pressure and Closed Loop Control
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. Melt pressure in the head runs 25 to 40 MPa. Vacuum level, 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.
Pembersihan penutupan
Ketika pekerjaan berakhir, campuran pengisi tinggi harus dibuang dari tabung dengan PE murni. Jika campuran pencegah api tersisa untuk berkarat dan berubah di baut dan permukaan cetakan, itu akan mengering, menempel, dan memaksa waktu yang lama untuk membersihkan sebelum pekerjaan berikutnya. Pembersihan yang bersih melindungi tabung bimetal dan permukaan cetakan dan memperpendek perubahan ukuran.
Process Temperature and Pressure Parameter Table
| Paramater | Zone 1 feed | Zona 2 | Zone 3 | Zone 4 | Zone 5 meter | Die head |
|---|---|---|---|---|---|---|
| Barrel temperature (C) | 165 | 175 | 185 | 190 | 190 | 185 to 195 |
| Kecepatan mata pisau (rpm) | 25 to 70, kept low for high filler | |||||
| Melt pressure (MPa) | 25 to 40 | |||||
| Melt temperature 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.
Hydrostatic Strength
Ketahanan tekanan internal diuji dalam tiga kondisi: 20 derajat C selama 100 jam pada 12,4 MPa, 80 derajat C selama 165 jam pada 5,5 MPa, dan 80 derajat C selama 1.000 jam pada 5,0 MPa. Ini adalah titik ketahanan standar pipa PE dan mereka mengkonfirmasi bahwa ketebalan dinding dan kelas resin benar-benar memberikan tekanan yang ditetapkan dalam jangka waktu tertentu.
Material and Pipe Property Tests
Perubahan kecepatan aliran cairan setelah diproses harus tetap dalam kisaran plus atau minus 20 persen dari resin asli, yang menunjukkan bahwa campuran tidak mengalami kerusakan termal. Waktu induksi oksidasi pada 200 derajat C harus 20 menit atau lebih, menunjukkan stabilitas termal yang dipertahankan. Reversi longitudinal harus 3 persen atau kurang, elongasi saat patah 350 persen atau lebih, dan pipa harus lulus uji berat jatuh 0 derajat C. Ketahanan terhadap pertumbuhan keretakan lambat diuji dengan uji pipa yang memiliki lekukan, dan pertumbuhan keretakan yang cepat dengan metode uji yang relevan.
Flame and Combustion Classification
Perilaku api diukur dengan menurunkan indeks oksigen sesuai dengan GB/T 2406, klasifikasi UL 94, klasifikasi bahan bangunan untuk pembakaran sesuai dengan EN 13501-1, dan penilaian kinerja api bahan bangunan China sesuai dengan GB 8624. Untuk sistem pipa yang terpasang, standar pipa yang relevan adalah ISO 4427, EN 12201, GB/T 13663 dan ASTM F714, sementara referensi desain sistem sprinkler adalah NFPA 13 dan konsep pengakuan pipa plastik yang tertanam adalah UL 1285 dan FM 1613, semuanya hanya disebutkan sebagai nama standar di sini.
Jointing
Pipa HDPE tahan api disambung dengan metode yang sama seperti pipa PE standar: pengelasan elektrofus dan pengelasan sambungan, dengan parameter pengelasan yang ditetapkan untuk memenuhi persyaratan penerimaan sistem api, ditambah flange pada valve dan peralatan. Kualifikasi prosedur pengelasan dan catatan adalah bagian dari penerimaan sistem api, sehingga pipa harus keluar dari pabrik dengan ujung yang dapat dieluskan secara konsisten.
Quality Inspection Items and Standards
| Test item | Condition / limit | Standard reference | Why it matters for fire pipe |
|---|---|---|---|
| Hydrostatic 20 C 100 h | 12.4 MPa pass | ISO 4427, GB/T 13663 | Pressure rating proof |
| Hydrostatic 80 C 165 h | 5.5 MPa pass | EN 12201, ASTM F714 | Long term hot endurance |
| Hydrostatic 80 C 1000 h | 5.0 MPa pass | ISO 4427 | Lifetime extrapolation |
| MFR change | Within +/-20 percent | ISO 1133 | No thermal damage |
| OIT | 20 min at 200 C min | ISO 11357 | Thermal stability |
| Longitudinal reversion | 3 percent max | Permukaan sharkskin | Dimensional stability |
| Elongation at break | 350 percent min | ISO 6259 | Toughness |
| Falling weight impact | Pass at 0 C | SJSZ-51/105 | Toughness in cold |
| Slow crack growth | 8760 h at 80 C | ISO 13479 (NPT) | PE100-RC proof |
| Limiting oxygen index | 28 to 32 percent (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
Memiliki pipa HDPE yang tahan api berbeda dengan memiliki jalur PE standar karena beban pengisian yang tinggi meningkatkan biaya energi, usia pemakaian, dan tenaga kerja, sementara menambah beban kualitas. Ekonomi di bawah ini diungkapkan dalam bentuk relatif, energi per ton, rasio usia pemakaian, waktu pergantian, dan ukuran tim. Ini tidak diungkapkan dalam mata uang.
Energy, Wear and Crew
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
| Defect | Likely cause | Action |
|---|---|---|
| White specks / agglomerates | Poor filler dispersion, coarse particle | Use superfine treated filler, raise mixing, check dosing |
| Wall layer separation | 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 |
| Wall eccentricity | 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.
| Konfigurasi | Investment index (baseline 100) | Energy per ton | Wear cost level | Payback horizon |
|---|---|---|---|---|
| Baseline DN110 HDPE pressure pipe | 100 | 300 to 350 kWh/t | Low | Medium (24 to 36 months) |
| Thick wall SDR 9 large diameter | 115 to 135 | 330 to 400 kWh/t | Menengah | Menengah |
| Mineral flame retardant filled | 130 to 160 | 380 to 450 kWh/t | Tinggi | Medium to High |
| Intumescent filled | 125 to 150 | 350 to 420 kWh/t | Medium High | Medium to High |
| Two stage compounding + forming | 160 to 200 | 400 to 450 kWh/t | Tinggi | Tinggi |
Faygo Real Line Selection and Service
When the engineering reaches the question of which actual machine to install, Faygo offers garis ekstrusi pipas 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 Jalur Ekstrusi Pipa (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 CE and ISO certified and undergoes a 72 hour continuous running test before shipment.
| Paramater | Faygo HDPE pipe line |
|---|---|
| Diameter range | 12 to 575 mm |
| Materials | PE, PVC, PP |
| Max wall thickness | 6.5 mm |
| Screw feature | Low shear barrier with mixing section, bimetallic barrel option |
| Control | Intelligent control system, internationally branded electrical components |
| Quality check | 72 hour continuous running test before delivery |
| Certification | CE dan ISO |
Faygo PP-R / PE-RT Jalur Ekstrusi Pipa
Faygo’s PP-R / PE-RT garis ekstrusi pipa produces PP-R and PE pipes from 16 to 160 mm and PE-RT pipes from 16 to 32 mm. It is the smaller diameter sibling of the core HDPE line and shares the same intelligent control architecture, the same branded electrical components and the same 72 hour pre shipment test. For fire fighting branch lines in the DN16 to DN160 range it is the natural platform to receive the flame retardant PE100 configuration.
| Paramater | Faygo PP-R / PE-RT pipe line |
|---|---|
| PP-R / PE pipe range | 16 to 160 mm |
| PE-RT pipe range | 16 to 32 mm |
| Control | Intelligent control system, branded electrical components |
| Quality check | 72 hour continuous running test before delivery |
| Certification | CE dan ISO |
Requirement to Konfigurasi Recommendation
The table maps a stated project need to a Faygo line configuration. Faygo, as a Wanplas factory, can also arrange matched capabilities from the Wanplas group for any upstream compounding or downstream step that falls outside the pipe line itself.
| Kebutuhan (diameter / tekanan / api / kapasitas) | Recommended Faygo configuration |
|---|---|
| DN63 to 160, PN16, standard PE100, buried ring main | Core HDPE line, single screw 75 to 120 mm, SDR 11 |
| DN160 to 315, PN20, thick wall 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 |
| Any diameter, mineral flame retardant 55 to 65 percent | Single screw low shear barrier + bimetallic barrel HRC 58 to 62, dehumidifying dryer |
| Ultra high filler, premium surface | 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 |
Layanan dan Dukungan
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 24/7 online technical support. 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.
Pertanyaan yang Sering Diajukan
What is the difference between fire fighting HDPE pipe and ordinary water supply HDPE pipe?
Pipa HDPE untuk pemadaman api harus secara bersamaan memenuhi kelas tekanan seperti PN10, PN16 atau PN20 dengan SDR 17, SDR 11 atau SDR 9, serta persyaratan tahan api yang tidak dimiliki oleh pipa air biasa. Saluran yang terlihat di gedung komersial biasanya terbuat dari HDPE modifikasi tahan api PE100, sementara saluran utama yang tertanam dapat menggunakan PE100 standar.
Which flame retardant system is best for fire resistant HDPE pipe?
Halogen free magnesium hydroxide or aluminum hydroxide at 55 to 65 percent loading reaches limiting oxygen index 28 to 32 percent and UL 94 V-0 at 3 mm, but is the hardest to process. Intumescent flame retardant at 22 to 30 percent gives lower mechanical loss. Halogenated systems are restricted by RoHS and REACH and are generally not accepted for commercial building projects.
Mengapa pengisian yang tinggi meningkatkan kesulitan ekstrusi?
Pengisian anti-melawan api yang tinggi meningkatkan viskositas cairan hingga dua hingga empat kali, meningkatkan usia pemakaian katup dan tabung sehingga tabung bimetal dengan HRC 58 hingga 62 diperlukan, menurunkan dispersi dan menurunkan kinerja mekanis dan anti-melawan api, serta meningkatkan tekanan kepala katup hingga 25 hingga 40 MPa.
What melt temperature must be controlled during flame retardant PE extrusion?
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.
Bagaimana pipa HDPE yang tahan api dihubungkan di lokasi?
Sama seperti pemanasan dan pemutusan ekstrusi yang digunakan untuk pipa PE standar, parameter pemanasan ditetapkan untuk memenuhi persyaratan penerimaan sistem api. Koneksi flange digunakan pada katup dan peralatan koneksi. Catatan pemanasan adalah bagian dari penerimaan sistem api.
Apa tes kualitas yang membuktikan pipa cocok untuk sistem pemadam kebakaran?
Hydrostatic endurance at 20 C 100 h (12.4 MPa), 80 C 165 h (5.5 MPa) and 80 C 1000 h (5.0 MPa), melt flow rate change within plus or minus 20 percent, oxidation induction time 20 minutes or more at 200 C, longitudinal reversion 3 percent or less, elongation at break 350 percent or more, and flame tests including limiting oxygen index per GB/T 2406, UL 94 and building combustion class per EN 13501-1 or GB 8624.
Apa yang disediakan Faygo untuk proyek ekstrusi pipa api?
Faygo, pabrik Wanplas with 22 years of pipe extrusion experience, supplies HDPE garis ekstrusi pipas covering 12 to 575 mm diameter and wall thickness up to 6.5 mm, with 72 hour continuous running test before shipment, turnkey installation and commissioning, training, and USD 500 free spare parts per year.
Kesimpulan
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, pabrik Wanplas, builds the garis ekstrusi pipas 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.
