คำอธิบาย
Austenitic stainless steel industrial valve
304 โกลบวาล์วสแตนเลส
A practical general-purpose stainless steel choice for non-marine process, น้ำ, food and utility service. The globe valve configuration is engineered for frequent isolation and regulated process flow.
What is a 304 โกลบวาล์วสแตนเลส?
ก 304 Stainless Steel Globe Valve combines a chromium-nickel austenitic stainless steel family offering general corrosion resistance, cleanability and broad fabrication experience with a linear-motion design in which a disc or plug moves perpendicular to the seat for isolation or controlled throttling.
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. Pressure drop, cavitation, noise, ความเร็ว, plug contour, flow direction and actuator sizing must be checked for throttling service.
304 Stainless Steel Globe Valve specifications
| ผลิตภัณฑ์ | 304 โกลบวาล์วสแตนเลส |
|---|---|
| Valve construction | Bolted-bonnet T-pattern globe valve; Y-pattern or angle pattern as separate engineered options |
| Nominal material | 304 สแตนเลส |
| เรา / EN reference | UNS S30400/S30403; EN 1.4301/1.4307 |
| Product forms | Wrought ASTM A182 F304/F304L; cast ASTM A351 CF8/CF3; exact component specification stated on order |
| Design standards | API 623 และ ASME B16.34; API 602 for applicable compact forged designs |
| Pressure testing | API 598 or project-specified shell, backseat and closure testing |
| Pressure rating | ASME Class or PN rating verified against exact material, ขนาด, construction and design temperature |
| End connections | RF/RTJ flanged or butt-weld ends according to design |
| Operation | Handwheel, gearbox, pneumatic or electric actuator |
| เอกสารประกอบ | EN 10204 3.1 material records, pressure test report, GA drawing and project inspection records as ordered |
This is an engineered inquiry product, not a universal stock specification. Final availability depends on valve size, ระดับความดัน, material form, trim, seat system, operator, quantity and required code edition.
304 Stainless Steel material selection
| จุดคัดเลือก | Engineering guidance |
|---|---|
| Material profile | a chromium-nickel austenitic stainless steel family offering general corrosion resistance, cleanability and broad fabrication experience |
| Why it is selected | Broad availability, good fabrication and useful corrosion resistance in many mild industrial environments. |
| บริการทั่วไป | Fresh water, food and beverage, non-chloride chemicals, clean utilities and general process duties. |
| Limitations to check | Chloride pitting, crevice corrosion and stress-corrosion cracking must be assessed; it is not the default choice for seawater or aggressive reducing acids. |
| Specification route | Wrought ASTM A182 F304/F304L; cast ASTM A351 CF8/CF3; exact component specification stated on order |
| Verification | MTC review, heat traceability and PMI when required; low-carbon grade confirmed where welding and sensitization control matter. |
Globe Valve design and standards
API 623
Common design basis for steel globe valves with flanged or butt-welding ends.
ASME B16.34
ความดัน-อุณหภูมิ, material and general valve requirements within scope.
API 598
Shell, backseat and closure pressure testing when specified.
IEC 60534
Relevant when the product is engineered as a control valve with defined sizing and performance requirements.
Body pattern, plug contour, seat/hardfacing, flow direction, packing, pressure drop and actuator thrust must reflect the actual regulating or isolation duty.
Fire-safe, fugitive-emission, sour-service, ออกซิเจน, cryogenic, chlorine and PED requirements apply only when explicitly defined and supported for the exact offered configuration.
การใช้งานทั่วไป
| อุตสาหกรรม | Material service context | Valve selection focus |
|---|---|---|
| อาหารและเครื่องดื่ม | Clean water, product transfer and utility systems with compatible cleaning chemistry | Pressure drop, plug/seat trim, cavitation, flow direction, leakage and operating thrust |
| การบำบัดน้ำ | Fresh-water and low-chloride treatment stages | Pressure drop, plug/seat trim, cavitation, flow direction, leakage and operating thrust |
| General chemical | Mild oxidizing and non-halide process media after compatibility review | Pressure drop, plug/seat trim, cavitation, flow direction, leakage and operating thrust |
| Building and utility | Clean utility, HVAC and non-marine industrial services | Pressure drop, plug/seat trim, cavitation, flow direction, leakage and operating thrust |
Application examples are not a corrosion or design approval. The end user must verify process chemistry, สารปนเปื้อน, ความดัน, อุณหภูมิ, ความเร็ว, การปั่นจักรยาน, emissions and regulatory requirements.
คุณภาพ, testing and traceability
Heat-number traceability and EN 10204 3.1 records matched to the ordered component specifications.
MTC review, heat traceability and PMI when required; low-carbon grade confirmed where welding and sensitization control matter.
API 598 or project-specified shell, backseat and closure testing, with acceptance and leakage criteria stated on the order.
GA drawing, ขนาด, การทำเครื่องหมาย, operation, pressure test and specified NDE/third-party records.
รายการตรวจสอบ RFQ
- Valve design standard and required edition
- Nominal size and ASME Class or PN rating
- Exact material specifications for pressure boundary, trim, seats, packing and bolting
- T/Y/angle pattern, isolation or throttling duty, flow coefficient/process data and trim contour
- End connection, facing and face-to-face requirement
- Fluid composition, ความเข้มข้น, contaminants and solids
- Design and operating pressure/temperature
- พีเอ็มไอ, การทดสอบการกัดกร่อน, ใกล้ใกล้ตาย, witnessing and document requirements
คำถามที่พบบ่อย
Is CF8 the same as 304 สแตนเลส?
CF8 is a cast austenitic stainless steel commonly associated with wrought 304 เคมี, 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 globe valve be used for throttling?
ใช่, but the plug contour, pressure drop, cavitation, noise, velocity and actuator requirements must be engineered for the actual process.
How does a globe valve differ from a gate valve?
A globe valve provides better regulation but higher pressure drop. A gate valve offers a straighter flow path and is mainly used for full-open/full-closed isolation.
สามารถ 304 Stainless Steel be used for every component in this globe valve?
ไม่โดยอัตโนมัติ. Pressure-boundary, trim, stem or shaft, seating, packing, gasket and bolting materials have different mechanical and corrosion duties. The complete bill of materials must be engineered for the service.
Related 304 Stainless Steel valve products
Need a broader comparison? View the general stainless steel and alloy globe valves guide or browse all โกลบวาล์ว.
ขอ 304 Stainless Steel Globe Valve quotation
Send the valve specification, exact material grades, ขนาด, ระดับความดัน, operating conditions, ข้อกำหนดด้านปริมาณและการตรวจสอบสำหรับการทบทวนทางเทคนิค.
