Keterangan
Austenitic stainless steel industrial valve
304 Katup Kupu-Kupu Tiga Offset Baja Tahan Karat
A practical general-purpose stainless steel choice for non-marine process, air, food and utility service. The triple offset butterfly valve configuration is engineered for compact high-temperature or severe-service process isolation.
Apa itu a 304 Katup Kupu-Kupu Tiga Offset Baja Tahan Karat?
A 304 Stainless Steel Triple Offset Butterfly Valve combines a chromium-nickel austenitic stainless steel family offering general corrosion resistance, cleanability and broad fabrication experience with a quarter-turn metal-seated design using three geometric offsets to reduce seat rubbing and support severe-service isolation.
304 is often the commercial material name, while pressure-containing cast bodies are normally ordered by a casting grade such as CF8 or CF3 rather than simply as 304. Seat-stack design, pressure direction, leakage class, shaft loading, thermal cycling and actuator torque are configuration-specific.
304 Stainless Steel Triple Offset Butterfly Valve specifications
| Produk | 304 Katup Kupu-Kupu Tiga Offset Baja Tahan Karat |
|---|---|
| Konstruksi katup | Triple-eccentric metal-seated butterfly valve in wafer, lug, double-flanged or butt-weld body pattern |
| materi nominal | 304 Baja Tahan Karat |
| KITA / Sebuah referensi | UNS S30400/S30403; EN 1.4301/1.4307 |
| Bentuk produk | Tertempa ASTM A182 F304/F304L; pemeran ASTM A351 CF8/CF3; spesifikasi komponen persis yang tertera pada pesanan |
| Standar desain | API 609 Dan ASME B16.34; EN 593 option for applicable European projects |
| Pengujian tekanan | API 598, EN 12266-1 or project-specified shell and seat testing |
| Peringkat tekanan | Peringkat Kelas ASME atau PN diverifikasi berdasarkan materi yang tepat, ukuran, suhu konstruksi dan desain |
| Akhiri koneksi | Wafer, lug, double-flanged or butt-weld body patterns according to design |
| Operasi | Gearbox, pneumatic, electric or hydraulic actuator |
| Dokumentasi | EN 10204 3.1 catatan materi, laporan uji tekanan, Gambar GA dan catatan inspeksi proyek sesuai pesanan |
Ini adalah produk penyelidikan yang direkayasa, bukan spesifikasi stok universal. Ketersediaan akhir tergantung pada ukuran katup, kelas tekanan, bentuk materi, memangkas, sistem kursi, operator, kuantitas dan edisi kode yang diperlukan.
304 Stainless Steel material selection
| Titik seleksi | Bimbingan teknik |
|---|---|
| Profil bahan | a chromium-nickel austenitic stainless steel family offering general corrosion resistance, cleanability and broad fabrication experience |
| Mengapa dipilih | Broad availability, good fabrication and useful corrosion resistance in many mild industrial environments. |
| Layanan khas | Fresh water, food and beverage, non-chloride chemicals, clean utilities and general process duties. |
| Keterbatasan untuk diperiksa | Chloride pitting, crevice corrosion and stress-corrosion cracking must be assessed; it is not the default choice for seawater or aggressive reducing acids. |
| Spesifikasi rute | Tertempa ASTM A182 F304/F304L; pemeran ASTM A351 CF8/CF3; spesifikasi komponen persis yang tertera pada pesanan |
| Verifikasi | MTC review, heat traceability and PMI when required; low-carbon grade confirmed where welding and sensitization control matter. |
Triple Offset Butterfly Valve design and standards
API 609
Common design basis for butterfly valves; category, body pattern, seat design and edition must be identified.
ASME B16.34
Pressure-temperature and general valve design requirements where applicable.
API 598 / EN 12266-1
Shell and seat testing selected for the applicable project and market.
API 607 / ISO 10497
Fire-safe qualification applies only to the exact seat, seal and valve configuration.
Seal ring, seat stack, pressure direction, shaft/packing system, bearing loads and actuator safety factor must be reviewed as a complete package.
Aman dari kebakaran, emisi buronan, layanan asam, oksigen, kriogenik, Persyaratan klorin dan PED hanya berlaku jika ditentukan secara eksplisit dan didukung untuk konfigurasi yang ditawarkan secara tepat.
Aplikasi yang umum
| Industri | Konteks layanan material | Fokus pemilihan katup |
|---|---|---|
| Makanan dan minuman | Clean water, product transfer and utility systems with compatible cleaning chemistry | Pressure direction, leakage class, metal-seat design, suhu, torque and fire-safe/emissions qualification |
| Pengolahan air | Fresh-water and low-chloride treatment stages | Pressure direction, leakage class, metal-seat design, suhu, torque and fire-safe/emissions qualification |
| General chemical | Mild oxidizing and non-halide process media after compatibility review | Pressure direction, leakage class, metal-seat design, suhu, torque and fire-safe/emissions qualification |
| Building and utility | Clean utility, HVAC and non-marine industrial services | Pressure direction, leakage class, metal-seat design, suhu, torque and fire-safe/emissions qualification |
Contoh aplikasi bukan merupakan persetujuan korosi atau desain. Pengguna akhir harus memverifikasi proses kimia, kontaminan, tekanan, suhu, kecepatan, bersepeda, emisi dan persyaratan peraturan.
Kualitas, pengujian dan ketertelusuran
Keterlacakan nomor panas dan EN 10204 3.1 catatan yang cocok dengan spesifikasi komponen yang dipesan.
MTC review, heat traceability and PMI when required; low-carbon grade confirmed where welding and sensitization control matter.
API 598, EN 12266-1 or project-specified shell and seat testing, dengan kriteria penerimaan dan kebocoran yang tertera pada pesanan.
menggambar GA, ukuran, menandai, operasi, uji tekanan dan catatan NDE/pihak ketiga yang ditentukan.
Daftar periksa RFQ
- Standar desain katup dan edisi wajib
- Ukuran nominal dan peringkat ASME Class atau PN
- Spesifikasi material yang tepat untuk batas tekanan, memangkas, kursi, pengepakan dan perbautan
- Pola tubuh, face-to-face, pressure direction, leakage class, seal-ring design and actuation
- Akhiri koneksi, kebutuhan yang dihadapi dan tatap muka
- Komposisi cairan, konsentrasi, kontaminan dan padatan
- Desain dan tekanan/suhu pengoperasian
- PMI, pengujian korosi, mati suri, persyaratan saksi dan dokumen
Pertanyaan yang sering diajukan
Is CF8 the same as 304 baja tahan karat?
CF8 is a cast austenitic stainless steel commonly associated with wrought 304 kimia, but casting and wrought specifications have different requirements. The purchase order should state the governing ASTM grade.
When should 316 be selected instead of 304?
316/CF8M is often considered when molybdenum is beneficial for chloride pitting resistance, but neither grade is automatically suitable for seawater or every chemical service.
Can 304L components be welded?
304L is widely used for welded fabrication because of its lower carbon limit, but the approved welding procedure, filler metal, heat input and post-fabrication condition still control performance.
What are the three offsets?
They separate the shaft from the seat and body centerlines and add a conical sealing geometry, allowing rapid seat disengagement during opening.
Is every triple offset butterfly valve bidirectional?
TIDAK. Some designs have a preferred pressure direction or different leakage capability by direction. Confirm the tested performance of the exact configuration.
Bisa 304 Stainless Steel be used for every component in this triple offset butterfly valve?
Tidak secara otomatis. Batas tekanan, memangkas, batang atau poros, tempat duduk, sedang mengemas, bahan paking dan baut memiliki tugas mekanis dan korosi yang berbeda. Bill of material yang lengkap harus direkayasa untuk layanan tersebut.
Terkait 304 Stainless Steel valve products
Perlu perbandingan yang lebih luas? Lihat general stainless steel and alloy butterfly valves guide atau telusuri semuanya Katup Kupu-Kupu.
Permintaan a 304 Stainless Steel Triple Offset Butterfly Valve quotation
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