Ring Type Joint Flanges
- Wide Range of Materials: Available in various grades like 304, 316L, 321, 347H.
- Sealing Surface: Features a Raised Face (RF) for enhanced sealing.
- Leak-Proof Connection: Provides a secure, leak-proof seal at high pressures.
- High Pressure Resistance: Ensures durability and reliability under extreme operating conditions.
- Versatile Application: Suitable for Weld Neck, Slip-on, and Blind Flanges.
Technical Specifications
| Parameter | Specification |
| Model No. | RTJ Flange |
| Type | Welding Flange |
| Structure | Round |
| Sealing Surface | RF (Raised Face) |
| Shape | Circle |
| Material Grade | 304, 316L, 321, 347H, etc. |
| Specification | TUV, ISO9001, BV, TS, CCS |
| HS Code | 7307210000 |
| Standard | ANSI, ASME B16.5, B16.47, DIN, JIS, BS4504, GOST |
| Size Range | DN15-DN1500 (1/2″ – 60″) |
| Face Type | FF, RF, TG, MFM, RJ |
| Delivery Time | 15-30 Days |
| Supply Capacity | 150-200 Tons/month |
| Transport Options | By Sea, By Air, By Train |
Customization & OEM Service
- Manufacture flanges to customer-specific sizes and designs.
- Provide various materials, finishes, and face types based on requirements.
- Customize the sealing surface, dimensions, and pressure ratings for specialized applications.
- Supply both small and large quantities, including sample service.
Materials and Grades
- ASTM: 304, 304L, 316, 316L, 316Ti, 317L, 309, 309S, 310, 310S, 347H, 321, 321H, 904L, S31803, S32205, S32760.
- JIS: SUS304, SUS304L, SUS316, SUS316L, SUS316Ti, SUS317L, SUS321, SUS321H.
- DIN: 1.4301, 1.4306, 1.4401, 1.4435, 1.4571.
Applications
- Marine Industry: For use in offshore and marine pipelines.
- Petrochemical Industry: Sealing in high-pressure pipelines and reactors.
- Mining and Power Generation: For pressure vessels and structural components.
- Heavy Equipment: Sealing in valves, pumps, and other critical machinery.
Manufacturing Capabilities
Forging Facilities
- 6300T / 3150T / 2000T free hydraulic presses.
- 5T, 3T, 2T, 1T, 750kg, 560kg electro-hydraulic hammers.
Heating Treatment Facilities
- RTX-9 series trolley furnaces in multiple sizes (5.5–8 m chamber length).
- RJ-9-850KW vertical furnace with 15 m depth.
- RTX-12-350KW high-temperature trolley furnace.
Machining Facilities
- CNC machines (max 32-ton load).
- Heavy-duty lathes and vertical mills (up to 70 tons).
- Gantry milling machines, deep-hole boring machines, grinding and turning centers.
Testing & Quality Control
- Spectrum analysis for chemical composition.
- Ultrasonic, non-destructive, and metallographic testing.
- Mechanical property test machines for yield, tensile, hardness.
Production Process
- Raw Material Selection: Use first-grade ingot steel, inspect chemical composition.
- Forging: Heat to precise temperature, perform open die or die forging.
- Heat Treatment: Quenching, tempering, or normalizing to meet mechanical targets.
- Machining: CNC turning, boring, milling, grinding, and drilling to precision ±0.01 mm.
- Inspection: Each shaft tested via 100% ultrasonic, hardness, and tensile checks.
- Packaging & Delivery: Anti-corrosion coating, safe transport packaging, global logistics support.
Additional Value-added Services
- Quench-and-temper heat treating
- Rough and finish turning
- Ultrasonic and mechanical testing
- Dimensional inspection reports
- Customized design and programming support
Quality Assurance
- Each forging carries a test bar for mechanical testing.
- 100% ultrasonic and visual inspection before shipment.
- Hardness, tensile, and metallographic verification.
- Compliance with ASTM, DIN, GB, and EN standards.
Why Choose Boberry
Integrated Production
Complete forging-to-machining production line ensures precision and fast delivery.
Advanced Equipment
Heavy-duty forging presses and CNC systems handle large, complex mechanical component geometries.
Certified Assurance
Certified production with ISO9001, PED, SGS compliance and global OEM support.
Logistics & Delivery
Lead Time: 15–30 days (urgent) / 30–45 days (normal).
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.