reducing flange

1. Description

A Reducing Flange is a type of flange that connects pipes of different sizes. It has a larger diameter on one side and a smaller diameter on the other, allowing the flow of material from a larger pipe to a smaller one. Reducing flanges are essential in fluid and gas transportation systems to facilitate the connection between pipes of various diameters. Locus manufactures reducing flanges with high precision, ensuring durability and leak-proof connections.

2. Specification

• Material: Stainless Steel (304, 316), Carbon Steel (CS), Alloy Steel (Alloy 20, Inconel)
• Size: From ½” to 48″ nominal pipe size
• Pressure Rating: Class 150, 300, 600, 900, 1500
• Face Types: Raised Face (RF), Flat Face (FF), Tongue & Groove, and Ring Type Joint (RTJ)
• Thickness: According to ASME B16.5 or customer requirement
• Temperature Range: -100°C to 500°C
• Finish: Smooth, Groove, Beveled or as per customer requirement
• Coating: Anti-corrosive coatings like Epoxy or Zinc, as required
• Certification: ISO 9001:2015, CE, and other relevant certifications

3. Working

The reducing flange is installed between two pipes with differing diameters. It facilitates a seamless flow transition from the larger diameter pipe to the smaller diameter pipe, minimizing pressure loss and maintaining the efficiency of fluid or gas transport. The flange works by creating a tight seal using bolted connections that ensure no leakage, even under high pressure or harsh environmental conditions.

4. Principle

The reducing flange operates on the principle of flanged connection to pipe systems, where the larger flange face connects to the larger diameter pipe and the smaller face connects to the smaller diameter pipe. The connection is sealed using a gasket and bolted tightly to prevent leakage, while the internal flow transition is gradual due to the tapered design, which ensures reduced turbulence and pressure drop.

5. Assembly

• Step 1: Inspection – Verify the dimensions of the reducing flange against the customer’s specifications.
• Step 2: Positioning – Align the reducing flange with the pipes to be connected.
• Step 3: Gasket Placement – Place the gasket between the flange faces to create a leak-proof seal.
• Step 4: Bolt Tightening – Secure the flange with bolts according to the torque specifications to prevent leakage.
• Step 5: Final Inspection – Check for any misalignment, tightness, and leakage.

6. Installation Process

1. Preparation: Clean the flange surfaces and ensure that both the flange and pipe ends are free of dirt, rust, or oil.
2. Align the Pipes: Position the larger diameter flange with the larger pipe and the smaller diameter flange with the smaller pipe.
3. Install Gasket: Insert the gasket between the flange faces to provide a seal.
4. Bolt Flanges Together: Using the appropriate bolt size, connect the flanges together by tightening the bolts evenly in a star pattern to the required torque specification.
5. Check for Leaks: After installation, perform a leak test to ensure the flange connection is secure and leak-proof.

7. Technical Specification

8. Troubleshooting

9. HS Codes

10. FAQ

Q1: What are reducing flanges used for?
A1: Reducing flanges are used to connect pipes of different sizes, allowing smooth flow transition from a larger diameter pipe to a smaller diameter pipe.

Q2: What materials are reducing flanges made from?
A2: Locus reducing flanges are made from Stainless Steel, Carbon Steel, and Alloy Steel.

Q3: Are reducing flanges customizable?
A3: Yes, we offer customization in terms of material, size, pressure rating, and coating based on your specific needs.

Q4: What are the temperature and pressure ratings?
A4: Our reducing flanges have pressure ratings of Class 150, 300, 600, 900, and 1500, and can withstand temperatures ranging from -100°C to 500°C.

11. Applications

• Piping Systems: For fluid, gas, and steam transportation.
• Power Plants: For connecting varying pipeline diameters in boilers and turbines.
• Oil and Gas: Used in refineries, pipelines, and offshore platforms.
• Water Treatment: In water purification and waste management systems.
• Marine Industry: Used in marine vessels and offshore oil rigs for fluid transfer.
• Automotive: For exhaust and fuel systems requiring different pipe sizes.

Locus Brand Details

• • Brand Name: Locus
  • Brand Certification: ISO 9001:2015, CE, ISO 14001:2015, IATF 16949
  • Manufacturing Facility: Fully equipped with state-of-the-art technology for high-precision manufacturing.
  • Quality Control: Every reducing flange undergoes rigorous quality checks, including visual inspection, dimensional verification, pressure tests, and leak tests.