TOBO STEEL GROUP CHINA
| Payment Terms | MoneyGram, MoneyGram, Western Union, T/T, D/A, L/C, D/P |
| Supply Ability | 10000Pcs/month |
| Delivery Time | 15-25days |
| Packaging Details | the wooden case |
| Product Name | Insert Blind Flange |
| Productname | Alloy Steel Flanges |
| Wall Thickness | Customized |
| Standards | ASME, ANSI, DIN, JIS |
| Corrosion Resistance | High |
| Thickness | 0.1-8UM |
| Application | Oil & Gas, Petrochemical, Power Plants, Shipbuilding |
| Port | Shanghai, Ningbo, Etc. |
| Size | DN600 |
| Material Grade | S32950 |
| Usage | Pipe Lines Connect |
| Connection | flange |
| Surfacefinish | Smooth, Painted, or Galvanized |
| Temperaturerange | -50°C to 550°C |
| Pressurerating | Class 150 to Class 2500 |
| Brand Name | TOBO |
| Model Number | Alloy Steel Flanges |
| Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai, China |
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Product Specification
| Payment Terms | MoneyGram, MoneyGram, Western Union, T/T, D/A, L/C, D/P | Supply Ability | 10000Pcs/month |
| Delivery Time | 15-25days | Packaging Details | the wooden case |
| Product Name | Insert Blind Flange | Productname | Alloy Steel Flanges |
| Wall Thickness | Customized | Standards | ASME, ANSI, DIN, JIS |
| Corrosion Resistance | High | Thickness | 0.1-8UM |
| Application | Oil & Gas, Petrochemical, Power Plants, Shipbuilding | Port | Shanghai, Ningbo, Etc. |
| Size | DN600 | Material Grade | S32950 |
| Usage | Pipe Lines Connect | Connection | flange |
| Surfacefinish | Smooth, Painted, or Galvanized | Temperaturerange | -50°C to 550°C |
| Pressurerating | Class 150 to Class 2500 | Brand Name | TOBO |
| Model Number | Alloy Steel Flanges | Certification | ISO/TUV/SGS |
| Place of Origin | Shanghai, China | ||
| High Light | ASME B16.5 blind flange ，space saving insert flange ，alloy steel Class 150 flange | ||
Easy Installation Space Saving Insert Blind Flange ASMEB16.5 Class150
An Insert Blind Flange is a solid disc with no center hole, designed to be inserted and bolted between two standard flanges in a piping system . Its primary function is to block off sections of a pipeline . Unlike a pipe cap, a blind flange is secured with bolts, making it easy to install and remove for maintenance, inspection, or system modification . It serves as a reliable, removable closure.
The design and manufacturing of insert blind flanges are governed by various international and national standards. Key parameters include:
| Parameter | Details & Examples |
|---|---|
| Pressure Ratings | Common ratings include PN 10 and PN 16 . Standards like GB/T 4450-1995 cover marine-use flanges . |
| Size Range | Available in a wide range of diameters, from as small as DN 15 up to large sizes like DN 2000 or even larger . |
| Materials | Made from various materials including carbon steel (e.g., Q235, ASTM A105), alloy steel, stainless steel, and plastic . |
| Standards | Conforms to various standards such as GB/T (China), DIN (Germany), ASME (USA), and industry-specific standards like SH/T for petrochemicals . |
| Temperature Range | Operating temperatures can vary; for example, some are rated for temperatures up to 300 °C, while others, like spectacle blinds per DIN 86042, are used up to 120 °C . |
Insert blind flanges are critical for safety and maintenance in numerous industries:
Isolation for Maintenance and Safety: They provide a secure and sealed barrier to temporarily or permanently isolate a section of a pipeline . This allows for safe inspection, cleaning, or repair of equipment like valves, pumps, and vessels without draining the entire system . Their robust sealing performance makes them a preferred isolation method.
Pipeline Termination: Used to permanently or temporarily seal the end of a piping system .
Wide Industry Use: They are versatile components found in:
Shipbuilding: Used in various shipboard systems, with standards like GB/T 4450-1995 specifically for marine flanges .
Petrochemical & Oil Refining: Standards like SH/T3425-2011 govern their use in steel pipelines for this sector .
Power Generation: Isolate sections in boiler and steam systems to prevent leaks and ensure safety during upkeep.
Aerospace and Vacuum Systems: Used in high-specification environments, with standards available for aerospace applications and vacuum systems .
FAQ
1. who are we?
We are based in Hebei, China, start from 2021,sell to Domestic Market(50.00%), Southeast Asia(30.00%),Western Europe(20.00%). There are total about 5-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
3.what can you buy from us?
Flange, Tube Sheet
4. why should you buy from us not from other suppliers?
The company has strong technical force, complete production equipment and perfect testing means.It is mainly engaged in processing and manufacturing pipe fittings, anti-corrosion and insulation of pipes and pipe fittings, and sales of pipe fittings, pipes,
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES；
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
3,000,000-10,000,000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia...
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