Keterangan
Detil Produk
A raised face weld neck flange is a forged flange with a long tapered hub and a raised sealing face, designed to be butt welded to pipe for superior strength and reduced stress concentration. The raised face improves gasket seating pressure, while the weld neck design provides excellent performance in high-pressure, high-temperature and severe service conditions. It is widely used in refinery units, perpipaan proses, jalur uap, offshore systems and critical utility networks.
SASA FLANGE supplies raised face weld neck flanges in standard and customized dimensions according to ASME, EN, DIN, Persyaratan JIS dan GB. Setiap ordo dapat didukung dengan analisis kimia, pengujian mekanis, pemeriksaan dimensi, pengujian PMI, EN 10204 3.1 certificate and full heat number traceability to meet international project and end-user specifications.
- ✓Nama Produk: Flensa Leher Las Wajah Mengangkat
- ✓Kelas Bahan: ASTM A105N, A350 LF2, A182 F304/F316, F11/F22, F51
- ✓Jenis Produk: Forged butt-weld flange with raised face sealing surface
- ✓Fitur Utama: High strength hub design for pressure, temperature and cyclic loading service
- ✓Aplikasi: Minyak dan gas, petrokimia, pembangkit listrik, laut, pengolahan air dan perpipaan proses
Parameter Produk
| Nama Produk | Flensa Leher Las Wajah Mengangkat |
| Kelas Bahan | ASTM A105N, A350 LF2, A182 F304/F304L, F316/F316L, F321, F11, F22, F51, F53 |
| Jenis Bahan | Baja Karbon, Baja Karbon Suhu Rendah, Baja Tahan Karat, Baja Paduan, Baja Tahan Karat Dupleks |
| Formulir Produk | Flensa palsu, machined raised face, butt-weld neck |
| Rentang Ukuran | DN15 – DN1500 (1/2 inci – 60 inci) |
| Kelas Tekanan | Kelas 150 – 2500 / PN6 – PN100 |
| Menyegel Wajah | Federasi Rusia, FF, RTJ, PT, MFM |
| Perawatan Permukaan | Minyak anti karat, Cat hitam, Yellow transparent varnish, Galvanis celup panas, Pasifasi |
| Standar | ASME B16.5, ASME B16.47, EN 1092-1, DIN, JIS B2220, GB/T 9119 atau spesifikasi pelanggan |
| Inspeksi | Analisis Kimia, Uji Mekanik, Tes PMI, Dimensi, Hidrostatik |
| Sertifikat | EN 10204 3.1 Sertifikat Bahan tersedia |
| Layanan Pemrosesan | Pemotongan, Pemesinan CNC, Pengeboran Khusus, Pemrosesan Ukuran Khusus |
Komposisi Kimia
The chemical composition below is for reference based on a common forged carbon steel grade used for raised face weld neck flanges. Final chemistry depends on the selected material grade, applicable manufacturing standard and the issued mill test certificate. Baja tahan karat, alloy steel and duplex grades will have different composition limits according to their respective ASTM or EN standards.
| Elemen | C | Dan | M N | P | S | Kr | Di dalam | Mo | Lainnya |
|---|---|---|---|---|---|---|---|---|---|
| ASTM A105N % | 0.35 maks | 0.10 – 0.35 | 0.60 – 1.05 | 0.035 maks | 0.040 maks | 0.30 maks | 0.40 maks | 0.12 maks | Cu 0.40 maks, V 0.08 maks |
Sifat Mekanik
Mechanical properties of raised face weld neck flanges vary according to the selected material grade, latihan penempaan, kondisi perlakuan panas dan ketebalan bagian. The values below are typical minimum requirements for widely used flange materials and are provided for general technical reference. Project specifications, code requirements and MTC data should be checked for final purchasing confirmation.
| Nilai | Kekuatan Tarik | Kekuatan Hasil | Pemanjangan | Kekerasan | Kepadatan |
|---|---|---|---|---|---|
| ASTM A105N | 485 MPa min | 250 MPa min | 22% menit | 187 HB maks | 7.85 gram/cm3 |
| ASTM A182 F316/F316L | 515 MPa min | 205 MPa min | 30% menit | 217 HB maks | 7.98 gram/cm3 |
Tabel Ukuran Umum
| Rentang Ukuran | Kelas Tekanan | Menyegel Wajah | Bahan | Tersedianya |
|---|---|---|---|---|
| DN15 – DN50 | Kelas 150 – 600 | Federasi Rusia | A105N, F304/L, F316/L | Saham / Produksi |
| DN65 – DN300 | Kelas 150 – 1500 | Federasi Rusia / RTJ | A105N, LF2, F304/L, F316/L, F11, F22 | Saham / Produksi |
| DN350 – DN600 | Kelas 150 – 2500 | Federasi Rusia / RTJ | A105N, LF2, F11, F22, F51 | Produksi |
| DN700 – DN1500 | Kelas 150 – 900 | Federasi Rusia | A105N, F304/L, F316/L | Dibuat Sesuai Pesanan |
Perbandingan Spesifikasi Berbeda
| Jenis | Keterangan | Penggunaan Khas |
|---|---|---|
| Leher Las Wajah Terangkat | Butt-weld flange with tapered hub and raised gasket seating surface | General high-pressure and process piping systems |
| Flat Face Weld Neck | Weld neck flange with full flat sealing surface for full-face gasket contact | Low-pressure cast iron valves or flat face equipment connections |
| RTJ Weld Neck | Weld neck flange with ring type joint groove for metal ring gasket sealing | Tekanan tinggi, high-temperature and critical hydrocarbon service |
| Long Weld Neck | Extended neck design used as nozzle flange or vessel connection | Bejana tekan, columns and special engineered equipment |
Standar Setara dan Nama Internasional
Raised face weld neck flanges are produced under several international dimensional systems. While flange dimensions, drilling and pressure ratings differ by region, equivalent product forms are available across USA, Eropa, Jerman, Japan and China. Material names may also vary, so project buyers should confirm both flange standard and forging grade equivalence during technical review and quotation.
| Standar / Wilayah | Kode Standar | Kelas Khas / Setara |
|---|---|---|
| Amerika Serikat | ASME B16.5 | ASTM A105N, A182 F304/F316, A350 LF2 |
| Eropa | EN 1092-1 | P250GH, 1.4301, 1.4404, 13CrMo4-5 |
| Jerman | DIN 2633 / 2635 / 2637 | C22.8, 1.4301, 1.4404, 16Mo3 |
| Jepang | JIS B2220 | SFVC2A, SUS304, SUS316 |
| Cina | GB/T 9119 | 20#, 16M N, 304, 316, 12Cr1MoV |
Alur Proses Produksi
Manufacturing quality of raised face weld neck flanges depends on strict control from raw material selection through forging, machining and final inspection. SASA FLANGE applies process monitoring and traceability at each stage to ensure dimensional accuracy, correct material grade and reliable sealing performance.
- 1. Pemilihan Bahan Baku
- 2. Penempaan / Pemotongan
- 3. Perlakuan Panas
- 4. Pemesinan Kasar
- 5. Selesaikan Pemesinan
- 6. Pengeboran
- 7. Perawatan Permukaan
- 8. Inspeksi
- 9. Menandai
- 10. Sedang mengemas
- 11. Pengiriman
| Langkah Proses | Keterangan | Titik Kendali Mutu |
|---|---|---|
| Bahan mentah | Pilih billet atau pelat tempa bersertifikat | Sertifikat material dan ketertelusuran |
| Penempaan | Penempaan panas untuk mencapai bentuk yang dibutuhkan | Suhu penempaan dan rasio reduksi |
| Perlakuan Panas | Normalisasi, tempering atau anil | Kontrol suhu dan waktu penahanan |
| permesinan | Menyegel wajah, lubang baut, ukuran | Keakuratan dimensi dan penyelesaian permukaan |
| Inspeksi | Inspeksi akhir sebelum pengiriman | Dimensi, permukaan, PMI, hidrostatik |
Inspeksi Produk
1. Pemeriksaan Komposisi Kimia
Chemical analysis is performed to verify that the forging material conforms to the required grade such as A105N, LF2, F304 or F316. Test results are checked against applicable ASTM or EN limits for carbon, mangan, sulfur, phosphorus and alloying elements. This confirms material suitability before machining and shipment and supports full traceability documentation.
2. Pengujian Sifat Mekanik
Mechanical testing confirms that the flange material achieves the specified tensile strength, kekuatan hasil, elongation and hardness after forging and heat treatment. Typical tests are carried out in accordance with relevant material standards and project requirements. These results help ensure the raised face weld neck flange can perform safely in pressure and temperature service.
3. Inspeksi Dimensi
Pemeriksaan dimensi mencakup diameter luar, membosankan, dimensi hub, ketebalan flensa, lingkaran baut, ukuran lubang baut, hole quantity and raised face geometry. Surface finish of the gasket seating area is also checked to meet the required serration or machining standard. Accurate dimensional control is essential for fit-up, leak tightness and field installation efficiency.
4. Pengujian PMI dan Pengujian Hidrostatis
PMI testing is available to verify alloy identity and prevent material mix-up, khusus untuk baja tahan karat, baja paduan dan nilai dupleks. Hydrostatic or pressure-related verification can be arranged according to project scope and mating assembly requirements. SASA FLANGE juga menyediakan EN 10204 3.1 sertifikat, inspection records and heat number traceability for export and project documentation.
Kemasan Produk
- ✓Kemasan Kotak Kayu: Cocok untuk produk bertekanan tinggi dan berdiameter besar
- ✓Pengepakan Palet dengan Shrink Wrap: Cocok untuk pengiriman batch dan ukuran standar
- ✓Lapisan Minyak Anti Karat + Kertas Tahan Air: Digunakan untuk perlindungan angkutan laut
- ✓Kantong Plastik Individu + Karton: Digunakan untuk perlengkapan kecil dan produk berulir
- ✓Hapus Penandaan: Nilai, ukuran, kelas tekanan, nomor panas dan nomor PO
Aplikasi
Raised face weld neck flanges are widely selected for piping systems that require strong butt-welded joints, controlled gasket seating stress and dependable sealing under pressure and temperature changes. Their tapered hub reduces stress concentration and improves service life, making them suitable for demanding industrial environments across energy, process and utility sectors.
| Industri | Aplikasi Khas | Mengapa Produk Ini Digunakan |
|---|---|---|
| Minyak dan Gas | Pipeline terminals, kilang, gas compression skids, drilling and production lines | Provides high joint strength, good fatigue resistance and reliable sealing in pressure service |
| Pengolahan Kimia | Garis asam, sistem pelarut, perpipaan reaktor, process transfer lines | Available in stainless and alloy grades for corrosion resistance and process safety |
| Pembangkit Listrik | Saluran uap, boiler feed systems, condensate and high-temperature utility piping | Weld neck design performs well under thermal cycling and elevated pressure |
| Pengolahan Air | Stasiun pompa, unit desalinasi, filtration skids and utility piping | Offers durable flange connection with easy maintenance and gasketed sealing |
| Kelautan dan Lepas Pantai | Sistem air laut, topside piping, ballast lines and offshore modules | Suitable for harsh environments with strong mechanical integrity and optional corrosion-resistant grades |
Mengapa Memilih SASA FLANGE?
- ✓Professional manufacturer of Weld Neck Flange for global industrial projects
- ✓Ukuran yang disesuaikan, kelas tekanan dan kelas material sesuai gambar
- ✓Dukungan standar penuh: ASME, EN, DIN, JIS, GB, Spesifikasi gost dan pelanggan
- ✓Ketertelusuran material dengan kontrol nomor panas dan EN 10204 3.1 sertifikat materi
- ✓Analisis kimia, pengujian mekanis, pengujian PMI, pemeriksaan hidrostatik dan dimensi
- ✓Ketersediaan stok untuk barang standar, waktu tunggu 3-7 hari; produksi khusus 15-30 hari
- ✓Kemasan kelas ekspor untuk laut, transportasi udara dan darat
- ✓15+ pengalaman bertahun-tahun memasok 50+ negara-negara di seluruh dunia
Pertanyaan Umum
Q: What is a raised face weld neck flange?
A: A raised face weld neck flange is a forged flange with a tapered hub that is butt welded directly to pipe and a slightly elevated gasket seating area. The raised face concentrates gasket load for better sealing, while the neck improves stress distribution. It is commonly used in high-pressure, sistem perpipaan layanan bersuhu tinggi dan kritis.
Q: What materials are available for raised face weld neck flanges?
A: SASA FLANGE can supply raised face weld neck flanges in carbon steel, baja karbon suhu rendah, baja tahan karat, baja paduan dan baja tahan karat dupleks. Nilai umum meliputi ASTM A105N, A350 LF2, A182 F304/F304L, F316/F316L, F11, F22, F51 dan F53. Other grades can be produced according to customer drawings and project specifications.
Q: Kelas tekanan apa yang didukung?
A: Raised face weld neck flanges are available in ASME Class 150, 300, 400, 600, 900, 1500 Dan 2500, with comparable PN ratings under EN and DIN systems such as PN6 to PN100 depending on size and standard. The final pressure rating depends on the selected dimensional standard, kelas materi, design temperature and end-user specification.
Q: Bisa SASA FLANGE menyediakan ukuran khusus?
A: Ya. SASA FLANGE can produce non-standard and project-specific raised face weld neck flanges based on drawings or technical datasheets. Custom services include special bore sizes, pengeboran non-standar, alternative facing types such as RF or RTJ, special materials, extra machining requirements and marked traceability to match valves, equipment or skid package connections.
Q: Sertifikat apa yang diberikan?
A: SASA FLANGE menyediakan EN 10204 3.1 material certificate for raised face weld neck flanges, together with mill test certificate data and inspection reports as required. Available documentation can include chemical analysis, sifat mekanik, catatan pemeriksaan dimensi, PMI testing results and heat number traceability. Additional third-party inspection support can also be arranged for project orders.
Hubungi kami
If you are looking for raised face weld neck or related custom flange products, silakan hubungi SASA FLANGE dengan ukuran yang Anda butuhkan, kelas tekanan, kelas materi, standar, perawatan permukaan, kuantitas dan persyaratan inspeksi. Tim kami akan memberikan solusi teknis profesional dan penawaran harga kompetitif di dalamnya 24 jam.
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- ☎️ Telp: +86 21 52236361
- 🌐 Situs web: www.sasaflange.com
