Haihao Group Delivers ASME B16.5 & B16.47 Blind Flanges to Turkey for Low-Temperature and Stainless Steel Pipeline Applications
Haihao Group recently completed the production and shipment of a batch of high-performance blind flange products for a customer in Turkey. The order included stainless steel blind flanges, low-temperature carbon steel blind flanges, and spectacle blinds manufactured according to ASME B16.5, ASME B16.47 Series A, and ASME B16.48 standards.
These products are designed for demanding pipeline systems used in oil & gas, petrochemical, pressure testing, and industrial fluid control applications. The project required strict dimensional accuracy, controlled surface roughness, heat treatment, and special threaded-hole machining according to customer drawings.
As a professional industrial piping supplier, Haihao Group continues to provide reliable customized flange solutions for international EPC contractors and pipeline projects.
Product Details of the Turkey Flange Shipment
The shipment included the following products:
ASTM A182 F316L Stainless Steel Blind Flange
- Product: RF Blind Flange
- Size: 2″
- Pressure Class: Class 300
- Material: ASTM A182 F316L
- Standard: ASME B16.5
- Facing: Raised Face (RF)
- Surface Finish: RA 125–250 μin
- Service: Non-sour
- Additional Requirement: Heat treatment included
The ASTM A182 F316L blind flange ASME B16.5 configuration offers excellent corrosion resistance and is widely used in chemical processing systems, offshore piping, and stainless steel pressure lines.
ASTM A350 LF2 CL1 blind flanges ASTM A182 F316L blind flanges and ASME B16.48 spectacle blind flanges
ASTM A350 LF2 CL1 Blind Flange with Offset NPT Hole
- Product: RF Blind Flange with 3/4″ NPT Threaded Hole
- Size: 36″
- Pressure Class: Class 150
- Material: ASTM A350 LF2 Class 1
- Standard: ASME B16.47 Series A
- Coating: Black paint
- Facing Finish: RA 125–250 μin
A special requirement for this project was that the threaded hole should not be positioned in the center of the flange. According to the customer’s hydrostatic testing application, the 3/4″ NPT hole was machined off-center based on supplied drawings.
This customized ASTM A350 LF2 CL1 blind flange with threaded hole demonstrates Haihao Group’s capability in producing non-standard forged flanges for special engineering applications.
ASME B16.48 Spectacle Blind Flange
- Product: Spectacle Blind RF
- Size: 8″
- Pressure Class: Class 150
- Material: ASTM A350 LF2 CL1
- Standard: ASME B16.48
- Type: Through Bolted
- Service: Non-sour
- Coating: Black paint
The ASME B16.48 spectacle blind flange is commonly used for line isolation in process piping systems. It allows safe maintenance operations while ensuring clear visual confirmation of line status.
Strict Manufacturing and Inspection Standards
To ensure reliable performance under low-temperature operating conditions, all products were manufactured under strict quality control procedures.
Haihao Group provided:
- Heat treatment reports
- Material Test Certificates (MTC EN 10204 3.1)
- Dimensional inspection reports
- Surface roughness inspection
- Non-destructive testing (NDT)
- PMI material verification
- Coating inspection for painted products
The low-temperature carbon steel flanges manufactured from ASTM A350 LF2 Class 1 material offer excellent toughness and impact resistance in cold-service environments.
Why Customers Choose Haihao Group for Custom Flange Projects
Haihao Group supports customized flange production according to international standards and customer drawings. Our engineering and production teams can manufacture:
- Blind flanges
- Spectacle blinds
- Threaded flanges
- Weld neck flanges
- Large-diameter forged flanges
- Special drilling and threaded-hole configurations
We also support:
- ASME, EN, DIN, GOST, and JIS standards
- NACE MR0175 compliance
- Low-temperature and sour-service materials
- Third-party inspections
- Fast delivery schedules
For this Turkey project, the production cycle was controlled within 7–10 days, helping the customer meet urgent installation requirements.
Applications of These Flange Products
These flange products are widely used in:
- Oil and gas pipeline systems
- Hydrostatic pressure testing systems
- Petrochemical plants
- LNG and low-temperature facilities
- Offshore platforms
- Water treatment systems
- Industrial process piping
The combination of ASTM A350 LF2 blind flange ASME B16.47A products and stainless steel blind flanges provides reliable sealing performance under both standard and low-temperature conditions.
From standard ASME flange production to customized threaded-hole machining and low-temperature applications, Haihao Group remains committed to delivering dependable piping solutions for global industrial projects.
If you are looking for a reliable supplier of ASME blind flanges, spectacle blinds, or customized forged flange products, Haihao Group is ready to support your project.
FAQ
What is ASTM A350 LF2 CL1 used for?
ASTM A350 LF2 Class 1 is a low-temperature carbon steel material commonly used for flanges and forged fittings in cold-service pipeline systems.
What is the purpose of a spectacle blind flange?
A spectacle blind flange is used to isolate pipeline sections safely during maintenance or inspection operations.
Can Haihao Group manufacture customized threaded-hole blind flanges?
Yes. Haihao Group can manufacture blind flanges with customized threaded holes, special drilling patterns, and non-standard designs according to customer drawings.
What standards does Haihao Group follow for flange production?
Haihao Group manufactures flanges according to ASME, EN, DIN, JIS, GOST, and other international standards.
Does Haihao Group provide inspection documents?
Yes. We provide MTC EN 10204 3.1 certificates, NDT reports, heat treatment reports, PMI reports, and third-party inspection support.
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