ASME B16.48 Spectacle Blind Stainless Steel Flange F304L - 1/2" to 24" Size Range, 150-2500 LBS Pressure Rating
Price:
Negotiable
MOQ:
MOQ500kg
Delivery Time:
7-15 working days after receiving payment
Brand:
Zheheng
Product Description
Product Overview
Spectacle blind flanges are specialized industrial components consisting of two metal discs connected by a central steel section. Their distinctive "spectacles" appearance allows for easy flow control in piping systems. The design features one solid end and one hollow end, enabling operators to rotate the flange to either block or permit fluid flow as needed.
Key Advantages
- No welding required for installation
- Wide range of pressure tolerance capabilities
- Easy assembly in confined spaces with moderate torque requirements
- Superior performance in high-pressure, high-vibration applications
- Simplified maintenance for rigid piping systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Size Range | 1/2" (15 NB) to 24" (600 NB) |
| Pressure Classes | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Flange Face Types | Raised Face (RF), Ring Type Joint (RTJ) |
| Surface Treatments | Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Hot/Cold Dip Galvanized |
| Primary Material | Stainless Steel |
| Manufacturing Process | Cutting, Heat Treatment, Die Forging/Free Forging, CNC Machining |
| Standards Compliance | ASME B16.48-2010, API 590-1993, HG/T 21547-2016 |
| Stainless Steel Grades | ASTM A182, A240 F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L |
F304L Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon | 0.03 Max |
| Chromium | 18.00-20.00 |
| Manganese | 2.00 Max |
| Nickel | 8.00-12.00 |
| Nitrogen | 0.10 Max |
| Phosphorus | 0.045 Max |
| Silicon | 0.75 Max |
| Sulfur | 0.030 Max |
| Iron | Balance |
F304L Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (min) | 485 MPa |
| Yield Strength 0.2% Proof (min) | 170 MPa |
| Elongation in 50mm (min) | 40% |
| Rockwell B Hardness (max) | 92 HRB |
| Brinell Hardness (max) | 201 HB |
Quality Testing
- Chemical Component Analysis
- Mechanical Properties Testing
- Technical Properties Verification
- Exterior Size Inspection
- Hydraulic Pressure Testing
- X-ray Inspection
Packaging & Shipping
Each spectacle blind flange is protected with plastic caps on flange faces and securely packaged in plywood cases with wood pallets for safe international shipping.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wenzhou Zheheng Steel Industry Co.,Ltd
Location
No999 .wenzhou airport wenzhou city,zhejiang china
Contact Person
BAIN SHEN