Keterangan
Detil Produk
A PTFE lined blind flange is a solid flange designed to block off pipeline ends, nozzle outlets or future branch connections in corrosive service. It combines a forged or machined metal backing flange with a PTFE-lined wetted surface to resist aggressive media such as acids, alkali, chlorides and solvent-bearing fluids. Typical applications include chemical processing, garis pengawetan, sistem dosis, water treatment and marine utility piping.
SASA FLANGE supplies PTFE blind flanges in standard and custom dimensions according to ASME B16.5, EN 1092-1, DIN, Persyaratan JIS dan GB. Setiap ordo dapat didukung dengan analisis kimia, mechanical testing of the backing material, pemeriksaan dimensi, lining integrity checks, Pengujian PMI jika memungkinkan, EN 10204 3.1 certificate and full heat number traceability for reliable project documentation.
- ✓Nama Produk: PTFE Lined Blind Flange
- ✓Kelas Bahan: ASTM A105 / A350 LF2 / A182 F304 / F316 with virgin PTFE lining
- ✓Jenis Produk: Blind Flange with corrosion-resistant PTFE lined wetted face
- ✓Fitur Utama: High chemical resistance, leak-tight end closure, durable steel backing strength
- ✓Aplikasi: Pabrik kimia, acid and alkali pipelines, pengolahan air, marine and process systems
Parameter Produk
| Nama Produk | PTFE Lined Blind Flange |
| Kelas Bahan | Backing flange: ASTM A105, A350 LF2, A182 F304/F304L/F316/F316L; Liner: PTFE perawan |
| Jenis Bahan | Baja Karbon / Baja Tahan Karat / Alloy Steel with PTFE lining |
| Formulir Produk | Forged and machined blind flange, plate-machined blind flange, lined blind flange |
| Rentang Ukuran | DN15 – DN600 (1/2 inci – 24 inci) |
| Kelas Tekanan | Kelas 150 – 300 / PN10 – PN40 / HANYA 5K – 20K |
| Menyegel Wajah | Federasi Rusia, FF, PTFE faced FF, PTFE faced RF |
| Perawatan Permukaan | Minyak anti karat, cat hitam, galvanis celup panas, pasif, PTFE lined wetted surface |
| Standar | ASME B16.5, EN 1092-1, DIN 2527, JIS B2220, GB/T 9119 atau spesifikasi pelanggan |
| Inspeksi | Analisis Kimia, Uji Mekanik, Tes PMI, Dimensi, Lining Thickness and Spark Test |
| 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 for a common backing flange grade used in PTFE blind flanges. Final composition depends on the selected metal grade, applicable material standard and actual mill test certificate. PTFE lining composition is not shown in the metallic analysis table and is supplied according to project requirements.
| 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 below refer to typical backing flange materials used for PTFE blind flanges. Actual values may vary with grade, kondisi perlakuan panas, product size and manufacturing route. PTFE lining provides corrosion resistance to the wetted surface, while mechanical strength is mainly determined by the metallic backing flange.
| 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 F316L | 485 MPa min | 170 MPa min | 30% menit | 95 HB maks | 8.00 gram/cm3 |
Tabel Ukuran Umum
| Rentang Ukuran | Kelas Tekanan | Menyegel Wajah | Bahan | Tersedianya |
|---|---|---|---|---|
| DN15 – DN50 | Kelas 150 – 300 | FF / Federasi Rusia | A105 + PTFE / F316L + PTFE | Saham / Produksi |
| DN65 – DN300 | Kelas 150 – 300 | FF / Federasi Rusia | A105 + PTFE / A350 LF2 + PTFE | Saham / Produksi |
| DN350 – DN600 | Kelas 150 – 300 | FF / Federasi Rusia | A105 + PTFE / F316 + PTFE | Produksi |
| DN700 – DN1500 | PN10 – PN16 | FF | Plate flange + PTFE lining | Dibuat Sesuai Pesanan |
Perbandingan Spesifikasi Berbeda
| Jenis | Keterangan | Penggunaan Khas |
|---|---|---|
| Raised Face PTFE Blind Flange | Blind flange with PTFE-lined raised sealing area for controlled gasket compression | ASME chemical lines and corrosive process piping |
| Flat Face PTFE Blind Flange | Full flat sealing surface lined with PTFE for low to medium pressure service | FRP-lined systems, water treatment and plastic valve connections |
| Carbon Steel Backed PTFE Blind Flange | Economical steel backing flange with PTFE wetted face for corrosion protection | General chemical transfer and acid/alkali service |
| Stainless Steel Backed PTFE Blind Flange | Stainless backing flange plus PTFE lining for enhanced external and internal corrosion resistance | High-purity, marine or aggressive media applications |
Standar Setara dan Nama Internasional
PTFE blind flanges are manufactured to international flange dimensional standards, while the backing material grade is selected separately according to project specification. Equivalent grade names may vary by region, and PTFE lining thickness, molding method and face style are confirmed during order review together with the material test certificate.
| Standar / Wilayah | Kode Standar | Kelas Khas / Setara |
|---|---|---|
| Amerika Serikat | ASME B16.5 | ASTM A105 / A182 F316L backing flange + PTFE lining |
| Eropa | EN 1092-1 | P245GH / 1.4301 / 1.4404 flensa pendukung + PTFE lining |
| Jerman | DIN 2527 / 2566 | C22.8 / 1.4571 flensa pendukung + PTFE lining |
| Jepang | JIS B2220 | SS400 / SUS304 / SUS316 backing flange + PTFE lining |
| Cina | GB/T 9119 | 20# / 304 / 316L backing flange + PTFE lining |
Alur Proses Produksi
PTFE blind flange production requires strict control of both metal flange machining and fluoropolymer lining quality. SASA FLANGE controls raw material traceability, akurasi dimensi, lining fit and final inspection to ensure stable corrosion-resistant 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, lining thickness, spark test, PMI |
Inspeksi Produk
1. Pemeriksaan Komposisi Kimia
Chemical analysis is performed on the metallic backing material to verify compliance with the specified grade such as ASTM A105 atau A182 F316L. Incoming material certificates are checked and, bila diperlukan, sample verification is conducted to confirm carbon, mangan, kromium, nickel and molybdenum limits before production release.
2. Pengujian Sifat Mekanik
Mechanical testing of the backing flange material includes tensile strength, kekuatan hasil, elongation and hardness according to the relevant ASTM or EN material standard. These tests confirm that the blind flange body provides the required structural strength for bolting loads, pressure service and safe long-term operation.
3. Inspeksi Dimensi
Each PTFE blind flange is inspected for outside diameter, ketebalan, lingkaran baut, diameter lubang baut, hole quantity and facing dimensions according to ASME, EN, DIN, Standar JIS atau GB. Special attention is given to sealing face flatness and lined-face fit to ensure proper gasket seating and leak-tight assembly.
4. Pengujian PMI dan Pengujian Hidrostatis
PMI testing is available to confirm the metallic backing grade, especially for stainless steel and alloy materials. For lined products, lining integrity checks such as spark testing and visual examination are commonly applied; hydrostatic or assembly pressure testing can be provided according to project scope. EN 10204 3.1 certificate is supplied with traceable inspection records.
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
PTFE blind flanges are widely used where the line end must be positively sealed and the process media is corrosive. The PTFE-lined wetted face protects the metallic body from chemical attack, while the solid blind design allows safe shutdown, maintenance isolation and future expansion points in process piping systems.
| Industri | Aplikasi Khas | Mengapa Produk Ini Digunakan |
|---|---|---|
| Minyak dan Gas | Selip injeksi kimia, produced water treatment, utility chemical lines | Provides secure end closure with improved resistance to corrosive chemicals |
| Pengolahan Kimia | Jalur transfer asam, alkali systems, chlorinated media piping, reactor nozzles | PTFE lining resists aggressive media and reduces corrosion risk at dead ends |
| Pembangkit Listrik | Air demineralisasi, flue gas desulfurization chemicals, dosing pipelines | Suitable for chemical service where metal-only blind flanges may corrode |
| Pengolahan Air | Dosing systems, sodium hypochlorite lines, acid cleaning circuits | Offers corrosion resistance and reliable isolation in treatment plants |
| Kelautan dan Lepas Pantai | Seawater chemical treatment units, sistem scrubber, corrosive utility lines | Combines mechanical strength with durable chemical protection in harsh environments |
Mengapa Memilih SASA FLANGE?
- ✓Produsen profesional Flensa Buta 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 PTFE blind flange?
A: A PTFE blind flange is a solid flange used to close the end of a pipeline, vessel nozzle or branch connection, with a PTFE-lined wetted face for corrosion resistance. It combines the pressure-bearing strength of a steel or stainless backing flange with the chemical resistance of polytetrafluoroethylene for aggressive process media.
Q: What materials are available for PTFE blind flanges?
A: SASA FLANGE can supply PTFE blind flanges with carbon steel, low-temperature carbon steel and stainless steel backing materials, termasuk ASTM A105, A350 LF2, A182 F304, F304L, F316 and F316L. The lining is typically virgin PTFE, while modified PTFE or PFA can be discussed for specific operating conditions.
Q: Kelas tekanan apa yang didukung?
A: PTFE blind flanges are commonly supplied in ASME Class 150 dan Kelas 300, as well as EN PN10, PN16, PN25 dan PN40, depending on size and construction. Higher pressure service is generally reviewed case by case because lining design, temperature and media compatibility must be evaluated together with the backing flange strength.
Q: Bisa SASA FLANGE menyediakan ukuran khusus?
A: Ya. SASA FLANGE can manufacture PTFE blind flanges to custom drilling patterns, non-standard outside diameters, special bolt holes, custom thicknesses and project-specific sealing faces. We can also match mating flange dimensions, selected backing materials and lining requirements according to drawings, sample parts or end-user specifications.
Q: Sertifikat apa yang diberikan?
A: Standard documentation can include EN 10204 3.1 material certificate for the metallic backing flange, sertifikat uji pabrik, dimensional inspection report and lining inspection records. PMI testing is available for stainless and alloy grades, and additional testing such as spark testing, hardness testing or project-specific pressure testing can be arranged upon request.
Hubungi kami
If you are looking for blind flange ptfe 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
