April 03, 2025

DIN Standard Slip Blind Forged Steel Flange

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Surface Treatment: Polishing
Forging Tolerance: +/-0.1mm
Standard: ASTM
Certification: ISO 9001:2008, API/Q1
Flange Surface: Yellow Paint, Oiled,Galvanized
OEM: Available
Trademark: hongfeng
Specification: ASTM, ANSI. API, DIN, JIS
Origin: Jiangsu Jiangyin
HS Code: 73072100
Surface Treatment: Polishing
Forging Tolerance: +/-0.1mm
Standard: ASTM
Certification: ISO 9001:2008, API/Q1
Flange Surface: Yellow Paint, Oiled,Galvanized
OEM: Available
Trademark: hongfeng
Specification: ASTM, ANSI. API, DIN, JIS
Origin: Jiangsu Jiangyin
HS Code: 73072100
   

Product Description

1. Application:

For seal or connect of pipe/tub-e lines

2. Material:

304,304L,316,316L,carbon steel or other material on request

3. Standard:

ANSI,DIN,JIS,BS,EN1092-1

4. Size:

DN15 (1/2") to DN5000 (200")

5. Type:
 Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint and Plate etc.

Types' Specification
Slip-on

1. Not normally used in high-stress applications due to low hub and weld attachment

2. Silps over outside of pipe

3. Inside of flange welded at hub and end of pipe
Welding neck

1. Preferred for high-pressure, subzero or elevated temperature

2. Hub is tapered and bored to match pipe's inside diameter so flow is not restricted, preventing turbulence and reducing erosion

3.Easily radiographed and provides excellent stress distribution
Blind

1. Used to close ends of piping

2. Has no bore

3. Permits access to sealed lines
Socket welding

1.For small-diameter chemical processes, hydraulic and stream distribution lines

2. Similar to slip-on flange

3. Counter bore matches pipe bore, allowing unrestricted flow

4. Counter bore from hub side fits pipe's outer diameter -  can insert pipe in socket with fillet weld at hub
Threaded

1. Used where welding would would be hazardous

2. Designed for low-pressure and non-cyclic applications

3. Bore is threaded to match pipe thread

4. Tapered to seal pipe and flanges

Lap joint

 

1.Used where bolt alignment or access for cleaning is required

2.Similar to slip-on flange when used with lap joint stub end

3. Radius at intersection of flange face and bore to match lap joint stub end
Different accessories are available 

6.  Kinds of forging: 

  Free forging/Die forging/Rolling  

7. Rustproof treatment: 

 Lightly oiled, Galvanized,  Painting with different colors,   Just keep the flanges dry and clean as per customers' requirement 

8. Inspection: 

 Factory in-house, Third party inspection available upon request 
DIN Standard Slip Blind Forged Steel Flange
DIN Standard Slip Blind Forged Steel Flange    

Product Description

1. Application:

For seal or connect of pipe/tub-e lines

2. Material:

304,304L,316,316L,carbon steel or other material on request

3. Standard:

ANSI,DIN,JIS,BS,EN1092-1

4. Size:

DN15 (1/2") to DN5000 (200")

5. Type:
 Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint and Plate etc.

Types' Specification
Slip-on

1. Not normally used in high-stress applications due to low hub and weld attachment

2. Silps over outside of pipe

3. Inside of flange welded at hub and end of pipe
Welding neck

1. Preferred for high-pressure, subzero or elevated temperature

2. Hub is tapered and bored to match pipe's inside diameter so flow is not restricted, preventing turbulence and reducing erosion

3.Easily radiographed and provides excellent stress distribution
Blind

1. Used to close ends of piping

2. Has no bore

3. Permits access to sealed lines
Socket welding

1.For small-diameter chemical processes, hydraulic and stream distribution lines

2. Similar to slip-on flange

3. Counter bore matches pipe bore, allowing unrestricted flow

4. Counter bore from hub side fits pipe's outer diameter -  can insert pipe in socket with fillet weld at hub
Threaded

1. Used where welding would would be hazardous

2. Designed for low-pressure and non-cyclic applications

3. Bore is threaded to match pipe thread

4. Tapered to seal pipe and flanges

Lap joint

 

1.Used where bolt alignment or access for cleaning is required

2.Similar to slip-on flange when used with lap joint stub end

3. Radius at intersection of flange face and bore to match lap joint stub end
Different accessories are available 

6.  Kinds of forging: 

  Free forging/Die forging/Rolling  

7. Rustproof treatment: 

 Lightly oiled, Galvanized,  Painting with different colors,   Just keep the flanges dry and clean as per customers' requirement 

8. Inspection: 

 Factory in-house, Third party inspection available upon request 
DIN Standard Slip Blind Forged Steel Flange
DIN Standard Slip Blind Forged Steel Flange

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