PNEUMATIC GATE VALVES
Nominal Diameter:10~2000mm
NominalPressure:10-2500MPa
Product material:
304,304L,321,316,316L,(Needle type valve series)
AMERICAN STANDARD WELDING NECK FLANGES (ANSI/ASME B16.5)
Precision-Engineered for High-Integrity Pipe Connections
Product Features & Applications
- Superior Sealing Performance:
- Tapered hub design ensures full penetration welds for zero leakage in critical process lines.
- Ideal for high-pressure/high-temperature systems (10-2500MPa*) in oil & gas, power generation, and petrochemical industries.
(Note: Pressure ratings vary by material; standard classes include 150-2500 [1.6-42MPa].)
- Material Flexibility:
- Stainless Steel: 304/304L, 316/316L, 321 (for elevated temp + corrosion resistance).
- Carbon Steel: A105 (forged) or A350 LF2 (low-temp applications).
- High-Temp Alloys: Inconel 625, Hastelloy C22 (for sour gas/high-sulfur environments).
- Compliance & Compatibility:
- Meets ANSI B16.5, ASME B16.47, MSS SP-44 standards.
- Matches RTJ, RF, or groove facing for valve/fitting integration.
Technical Specifications
| Parameter |
Details |
| Nominal Diameter |
DN10-DN2000 (1/2"-80") |
| Pressure Rating |
Class 150-2500 (PN16-PN420) |
| Connection Type |
Butt-weld (BW) per ASME B16.25 |
| Dimensional Tolerance |
±0.5mm (machined surfaces), ±1.0mm (castings) |
| Coating Options |
Anti-rust oil, black paint, or epoxy (on request) |
Quality Assurance
- Material Certifications:
- SS: ASTM A182 (F304L, F316L), CS: ASTM A105, Alloys: ASTM B564.
- NDT Testing: 100% liquid penetrant (PT) + magnetic particle (MT) inspection.
- Pressure Testing: Hydrostatic to 1.5x rated pressure; pneumatic leak check.
- Traceability:
- Heat number tracking for full material provenance.
- Dimensional reports (OD, thickness, bolt circle) per ASME B16.5.
- Approvals:
- ISO 9001:2015, PED 2014/68/EU, AD2000-Merkblatt W0.
Product Advantages
- Strength & Durability:
- Forged construction (vs. cast) offers 20% higher tensile strength for harsh conditions.
- 321 SS resists intergranular corrosion at 800-1500°F (425-815°C).
- Custom Solutions:
- Non-standard drilling (e.g., ANSI + DIN combo holes).
- Special alloys (Alloy 20, Titanium) for chloride stress corrosion resistance.
- Global Support:
- Multi-language documentation (English, Spanish, Russian).
- 24/7 technical assistance for installation/welding guidance.
Packaging & Logistics
- Packaging: Vacuum-sealed in plywood crates with desiccant packs.
- Lead Time: 7-15 days (stock items); 30-45 days (custom alloys/sizes).
- Exports: COC, Fumigation Certificates, and Mill Test Reports included.
Keywords: ANSI B16.5 Welding Neck Flange, 316L Stainless Steel Flange, Inconel 625 Flange, High-Pressure Forged Flange, ASME B16.47 Flange.
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