Haihao Group Ships ASME B16.48 Spectacle Blinds and ASME B16.5 Flanges to UAE
Haihao Group has successfully completed the production and shipment of a batch of ASME B16.48 spectacle blinds and heavy-duty industrial flanges for a customer in the United Arab Emirates. The order includes weld neck flanges, blind flanges, spectacle blind assemblies, and spacer rings manufactured from ASTM A105N, ASTM A516 Gr.70, and ASTM A694 F65.
Designed for demanding oil & gas and petrochemical applications, every component was manufactured according to international standards, carefully inspected, and finished with a protective black coating before shipment.
Shipment Overview
This UAE order covers several types of carbon steel and high-strength alloy steel flanges and line blank products.
| Product | Size | Rating | Material | Standard |
| Weld Neck RF Flange | 24″ | Class 600 / SCH80 | ASTM A105N | ASME B16.5 |
| Blind RF Flange | 12″ | Class 600 | ASTM A105N | ASME B16.5 |
| RTJ Spectacle Blind | 24″ | Class 900 | ASTM A516 Gr.70 | ASME B16.48 |
| RTJ Spacer Ring | 24″ | Class 900 | ASTM A516 Gr.70 | ASME B16.48 |
| FF Spacer Ring | 40″ | Class 600 | ASTM A516 Gr.70 | ASME B16.47 Series A |
| FF Spectacle Blind | 40″ | Class 600 | ASTM A516 Gr.70 | ASME B16.47 Series A |
| FF Spacer Ring | 8″ | Class 600 | ASTM A516 Gr.70 | ASME B16.48 |
| FF Spectacle Blind | 8″ | Class 600 | ASTM A516 Gr.70 | ASME B16.48 |
| Blind RF Flange | 40″ | Class 600 | ASTM A694 F65 | ASME B16.47 Series A |
| Weld Neck RF Flange | 40″ | Class 600 | ASTM A694 F65 | ASME B16.47 Series A |
All products were supplied with a black anti-corrosion coating to protect the machined surfaces during international transportation and storage.
Why Choose ASME B16.48 Spectacle Blinds?
The ASME B16.48 spectacle blinds supplied in this project provide a safe and reliable method for isolating process pipelines during maintenance, inspection, or shutdown operations.
Their key advantages include:
- Positive pipeline isolation
- Easy visual confirmation of line status
- Improved operational safety
- Reliable sealing performance
- Compliance with international piping standards
These products are widely used in refineries, offshore platforms, LNG terminals, petrochemical facilities, and large process plants where pipeline isolation is critical.
Premium Materials for Demanding Service
This shipment combines several industry-recognized materials for different operating conditions.
ASTM A105N
The weld neck and blind flanges manufactured from ASTM A105N provide excellent mechanical strength and weldability, making them suitable for pressure piping systems operating under a wide range of temperatures.
ASTM A516 Gr.70
The ASME B16.48 spectacle blinds manufactured from ASTM A516 Gr.70 offer excellent toughness and pressure-bearing capability, making them ideal for heavy-duty industrial service.
ASTM A694 F65
Large-diameter 40-inch flanges were produced using ASTM A694 F65, a high-strength material widely specified for transmission pipelines and high-pressure energy projects where enhanced mechanical performance is required.
Strict Manufacturing and Quality Control
Haihao Group follows a comprehensive quality control system throughout production.
Each product undergoes:
- Raw material verification
- Dimensional inspection
- Machining accuracy verification
- Surface quality inspection
- Standard compliance review
- Final visual inspection
- Protective black coating before shipment
The result is a shipment that fully satisfies customer specifications while complying with ASME dimensional requirements.
Supporting Energy Projects Worldwide
The UAE continues to invest heavily in oil & gas, petrochemical, offshore, and infrastructure development. Haihao Group has accumulated extensive experience supplying pipeline products for these industries, including large-diameter flanges, forged fittings, butt weld fittings, and customized pressure components.
Whether manufacturing standard products or engineered specials based on customer drawings, our technical team works closely with clients to ensure reliable quality and timely delivery.
Why Customers Choose Haihao Group
With more than four decades of manufacturing experience, Haihao Group supplies complete pipeline solutions to customers in over 100 countries.
Our advantages include:
- Complete production facilities
- Advanced CNC machining equipment
- Large-diameter flange manufacturing capability
- Strict quality management system
- International project experience
- Fast delivery for customized orders
- Professional technical support
From carbon steel to alloy steel, stainless steel, duplex stainless steel, and nickel alloys, Haihao Group provides dependable products for critical industrial applications worldwide.
Contact Haihao Group
If your project requires ASME B16.48 spectacle blinds, ASME B16.5 flanges, blind flanges, weld neck flanges, spacer rings, or other customized pipeline components, Haihao Group can provide complete manufacturing solutions tailored to your project specifications.
Contact our engineering team today for technical consultation and a competitive quotation.


