Keterangan
Austenitic stainless steel industrial valve
304 Katup Gerbang Baji Stainless Steel
A practical general-purpose stainless steel choice for non-marine process, air, food and utility service. The wedge gate valve configuration is engineered for fully open or fully closed isolation with low open-position pressure loss.
Apa itu a 304 Katup Gerbang Baji Stainless Steel?
A 304 Stainless Steel Wedge Gate Valve combines a chromium-nickel austenitic stainless steel family offering general corrosion resistance, cleanability and broad fabrication experience with a full-opening linear isolation design that raises a wedge out of a substantially straight flow path.
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. A wedge gate valve is not normally used for throttling because partial opening can produce vibration and seat or guide damage.
304 Stainless Steel Wedge Gate Valve specifications
| Produk | 304 Katup Gerbang Baji Stainless Steel |
|---|---|
| Konstruksi katup | Bolted-bonnet outside-screw-and-yoke rising-stem gate valve with flexible or solid wedge |
| 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 600 Dan ASME B16.34; API 602 untuk desain tempa kompak yang dapat diterapkan |
| Pengujian tekanan | API 598 atau shell yang ditentukan proyek, pengujian kursi belakang dan penutupan |
| Peringkat tekanan | Peringkat Kelas ASME atau PN diverifikasi berdasarkan materi yang tepat, ukuran, suhu konstruksi dan desain |
| Akhiri koneksi | Ujung berflensa atau las butt RF/RTJ sesuai desain |
| Operasi | roda tangan, kotak roda gigi, electric, pneumatic 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. |
Wedge Gate Valve design and standards
API 600
Common design basis for bolted-bonnet steel gate valves, including material, memangkas, testing and marking requirements.
ASME B16.34
General pressure-temperature and valve design requirements within scope.
API 598
Kerang, pengujian tekanan kursi belakang dan penutupan bila ditentukan.
API 624 / ISO 15848-1
Fugitive-emission qualification is specific to the packing system and qualified valve design.
Wedge flexibility, seat hardfacing, stem/packing system, body cavity drainage, thermal binding risk and operating thrust require service-specific review.
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 | Full-open isolation, wedge/seat materials, thermal effects, packing emissions and operator thrust |
| Pengolahan air | Fresh-water and low-chloride treatment stages | Full-open isolation, wedge/seat materials, thermal effects, packing emissions and operator thrust |
| General chemical | Mild oxidizing and non-halide process media after compatibility review | Full-open isolation, wedge/seat materials, thermal effects, packing emissions and operator thrust |
| Building and utility | Clean utility, HVAC and non-marine industrial services | Full-open isolation, wedge/seat materials, thermal effects, packing emissions and operator thrust |
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 atau shell yang ditentukan proyek, pengujian kursi belakang dan penutupan, 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
- Flexible or solid wedge, tempat duduk/menghadap keras, stem arrangement, packing and operator requirements
- 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.
Can a wedge gate valve be used for throttling?
Normally no. It is intended for fully open or fully closed service; extended partial opening can damage the wedge, seats and guides.
What is the difference between flexible and solid wedges?
A flexible wedge can accommodate limited alignment and thermal effects, while a solid wedge is more rigid. Selection follows the design and service conditions.
Bisa 304 Stainless Steel be used for every component in this wedge gate 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 gate valves guide atau telusuri semuanya Katup Gerbang.
Permintaan a 304 Stainless Steel Wedge Gate Valve quotation
Kirim spesifikasi katup, nilai materi yang tepat, ukuran, kelas tekanan, kondisi pengoperasian, kuantitas dan persyaratan inspeksi untuk tinjauan teknis.
