Keterangan
Detil Produk
A raised face weld neck flange is a butt-weld flange manufactured with a long tapered hub that provides smooth stress transition from flange to pipe. The raised face sealing surface concentrates gasket load for reliable sealing, making this flange suitable for high-pressure, cyclic, high-temperature and critical service pipelines in refineries, pabrik petrokimia, pembangkit listrik, offshore platforms and process piping systems.
SASA FLANGE supplies raised face weld neck flanges in standard and custom dimensions according to ASME B16.5, ASME B16.47, EN 1092-1, DIN, Standar JIS dan GB. Our supply scope includes chemical analysis, pengujian mekanis, pemeriksaan dimensi, pengujian PMI, sealing face inspection, EN 10204 3.1 certificate and full heat number traceability to meet international project and end-user requirements.
- ✓Nama Produk: Flensa Leher Las Wajah Mengangkat
- ✓Kelas Bahan: ASTM A105, A182 F304/F316, F11/F22, A350 LF2, duplex and nickel alloys
- ✓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, pemrosesan kimia, pembangkit listrik, pengolahan air, marine and offshore piping
Parameter Produk
| Nama Produk | Flensa Leher Las Wajah Mengangkat |
| Kelas Bahan | ASTM A105, A350 LF2, A694 F52/F60/F65, A182 F304/F304L/F316/F316L/F321/F347/F11/F22/F5/F9/F51/F53, Monel 400, tidak konel 625, Hastelloy C276 |
| Jenis Bahan | Baja Karbon, Baja Tahan Karat, Baja Paduan, Baja Tahan Karat Dupleks, Paduan Nikel |
| Formulir Produk | Flensa palsu, machined raised face, butt-weld end |
| 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, Pengawetan dan pasivasi |
| Standar | ASME B16.5, ASME B16.47 Seri A/B, 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 following chemical composition is for reference based on a common carbon steel grade used for raised face weld neck flanges. Final chemistry depends on the specified material grade, product standard and mill test certificate. SASA FLANGE supplies materials strictly in accordance with applicable ASTM, ASME or customer requirements, with full traceability to the heat number and certified MTC.
| Elemen | C | Dan | M N | P | S | Kr | Di dalam | Mo | Lainnya |
|---|---|---|---|---|---|---|---|---|---|
| ASTM A105 Isi % | 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 shown below are typical reference values for common flange materials. Actual properties may vary according to grade, kondisi perlakuan panas, section thickness and applicable standard requirements. Certified tensile, menghasilkan, elongation and hardness data can be provided against each heat number, didukung oleh EN 10204 3.1 certification and project-specific inspection documentation when required.
| Nilai | Kekuatan Tarik | Kekuatan Hasil | Pemanjangan | Kekerasan | Kepadatan |
|---|---|---|---|---|---|
| ASTM A105 | 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 | A105, F304/L, F316/L | Saham / Produksi |
| DN65 – DN300 | Kelas 150 – 1500 | Federasi Rusia / RTJ | A105, LF2, F11, F22, F304/L, F316/L | Saham / Produksi |
| DN350 – DN600 | Kelas 150 – 2500 | Federasi Rusia / RTJ | A105, A694 F52/F60, F11, F22, baja tahan karat | Produksi |
| DN700 – DN1500 | Kelas 150 – 900 | Federasi Rusia | Baja karbon, baja tahan karat, baja paduan | Dibuat Sesuai Pesanan |
Perbandingan Spesifikasi Berbeda
| Jenis | Keterangan | Penggunaan Khas |
|---|---|---|
| Flensa Leher Las Wajah Mengangkat | Butt-weld flange with tapered hub and raised sealing face for concentrated gasket loading | Tekanan tinggi, high-temperature and critical process piping |
| Flat Face Weld Neck Flange | Butt-weld flange with flat sealing surface for use with flat face gaskets and matching flat flanges | Low-pressure water lines and cast iron equipment connections |
| Flensa Leher Las RTJ | Weld neck flange with ring type joint groove for metal ring gasket sealing | High-pressure refinery, offshore and hazardous fluid service |
| Flensa Leher Las Panjang | Extended hub flange designed to act as nozzle or barrel extension | Bejana tekan, kolom, tanks and specialized process equipment |
Standar Setara dan Nama Internasional
Raised face weld neck flanges are produced under several international standards with differences in dimension series, pressure designation and material naming. Equivalent grades should always be confirmed against project specification, temperature rating and corrosion requirements. SASA FLANGE can assist buyers in cross-referencing ASME, EN, DIN, JIS and GB requirements for export projects and mixed-standard piping systems.
| Standar / Wilayah | Kode Standar | Kelas Khas / Setara |
|---|---|---|
| Amerika Serikat | ASME B16.5 | ASTM A105, A350 LF2, A182 F304/F316, F11/F22 |
| Eropa | EN 1092-1 | P245GH, P250GH, 1.4301, 1.4307, 1.4401, 1.4404, 13CrMo4-5 |
| Jerman | DIN 2633 / 2635 / 2637 / 2638 | C22.8, P250GH, 1.4571, 1.4404 |
| Jepang | JIS B2220 | SFVC2A, SUS304, SUS316, SF440A |
| Cina | GB/T 9119 | 20#, Q235B, 16M N, 304, 316, 12Cr1MoV |
Alur Proses Produksi
SASA FLANGE controls each manufacturing stage from raw material selection to final packing to ensure dimensional accuracy, sealing integrity and full traceability for raised face weld neck flanges used in demanding industrial service.
- 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 carried out to verify that the flange material conforms to the specified ASTM, EN or project grade. Raw material certificates are checked against heat numbers, and positive elemental values such as carbon, mangan, kromium, nickel and molybdenum are reviewed to confirm compliance before machining and final release.
2. Pengujian Sifat Mekanik
Mechanical testing is performed according to the relevant material standard to confirm tensile strength, kekuatan hasil, elongation and hardness. Jika diperlukan, impact testing for low-temperature grades such as ASTM A350 LF2 can also be arranged. These tests ensure the flange has the required strength and toughness for intended operating conditions.
3. Inspeksi Dimensi
Pemeriksaan dimensi mencakup diameter luar, ketebalan, dimensi hub, ukuran lubang, lingkaran baut, diameter lubang baut, number of holes and raised face geometry. Serration finish and sealing face condition are also checked. This process ensures proper fit-up with mating flanges, gaskets and piping components in accordance with the relevant standard.
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 as project specified. SASA FLANGE persediaan EN 10204 3.1 sertifikat, inspection records and traceable marking linked to the original heat number and purchase order.
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 used in industrial piping systems where strength, sealing performance and long-term reliability are critical. Their tapered hub design reduces stress concentration at the weld joint, while the raised face improves gasket compression. This makes them a preferred choice for severe operating conditions across process, utility and energy sectors worldwide.
| Industri | Aplikasi Khas | Mengapa Produk Ini Digunakan |
|---|---|---|
| Minyak dan Gas | Transmission lines, perpipaan kilang, stasiun kompresor, modul proses lepas pantai | Provides high joint strength and reliable sealing under pressure, vibration and temperature fluctuation |
| Pengolahan Kimia | Garis asam, sistem pelarut, koneksi reaktor, process utility piping | Available in corrosion-resistant stainless, alloy and nickel grades for aggressive media |
| Pembangkit Listrik | Saluran uap, boiler feed systems, turbine auxiliaries, high-temperature process piping | Weld neck design handles thermal cycling and high-temperature stress effectively |
| Pengolahan Air | High-pressure pump lines, unit desalinasi, filtration skids, chemical dosing systems | Offers secure gasket sealing and broad material options for treated and corrosive water service |
| Kelautan dan Lepas Pantai | Sistem pemberat, seawater cooling lines, platform utility piping, topside process piping | Suitable for corrosive environments and dynamic service when supplied in stainless or duplex grades |
Mengapa Memilih SASA FLANGE?
- ✓Produsen profesional Socket Weld Flange untuk proyek industri global
- ✓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 long tapered hub and butt-weld end. The raised face sealing area compresses the gasket within a smaller contact zone to improve sealing efficiency. It is commonly used on high-pressure and high-temperature pipelines where stress distribution, strength and leak-tight performance are important.
Q: What materials are available for raised face weld neck flanges?
A: SASA FLANGE supplies raised face weld neck flanges in carbon steel, baja karbon suhu rendah, baja tahan karat, baja paduan, duplex stainless steel and nickel alloys. Nilai umum meliputi ASTM A105, A350 LF2, A182 F304/F316, F11, F22, F51 and Inconel 625. Pemilihan material tergantung pada tekanan, suhu, corrosion and project specification.
Q: Kelas tekanan apa yang didukung?
A: Standard pressure ratings typically include ASME Class 150, 300, 600, 900, 1500 Dan 2500, depending on flange size and standard. EN and DIN pressure series such as PN6, PN10, PN16, PN25, PN40, PN64 and PN100 are also available. SASA FLANGE can recommend suitable ratings based on service conditions and design code.
Q: Bisa SASA FLANGE menyediakan ukuran khusus?
A: Ya. SASA FLANGE dapat menyediakan ukuran lubang khusus, pengeboran non-standar, special facing finish, special hub dimensions and project-specific materials according to drawings or technical specifications. Kami mendukung pemesinan untuk RF, RTJ and other facing types, and can produce flanges to ASME, EN, DIN, JIS, GB or mixed project requirements.
Q: Sertifikat apa yang diberikan?
A: Raised face weld neck flanges can be supplied with EN 10204 3.1 sertifikat materi, sertifikat uji pabrik, dimensional inspection report and PMI test records. Pengujian mekanis, hardness testing and additional third-party inspection can also be arranged. Where required by the order, pressure-related test documentation and full heat number traceability are included with shipment.
Hubungi kami
If you are looking for raised face weld neck flange 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.
- 📧 Surel: penjualan@sasaflange.com
- 📱 Ada apa: +86 13764965049
- ☎️ Telp: +86 21 52236361
- 🌐 Situs web: www.sasaflange.com
