DSAF Reducing Flange Adapter Stub Flange Adaptor For Wellhead Use

Product Overview

The DSAF Reducing Flange Adapter is designed to provide a secure and reliable transition between wellhead components of different flange sizes. Crafted from high-strength steel with corrosion-resistant treatment, this stub flange adaptor ensures precise alignment, mechanical stability, and safe fluid handling under high-pressure conditions. Ideal for both onshore and offshore wellhead systems, it facilitates efficient connection, operational safety, and long-lasting performance in demanding drilling environments.

Technical Features

1. Pressure Rating: 2,000 – 20,000 PSI
2. Size Range: 2" to 4" (custom sizes available)
3. Material Class: AA – HH, forged high-strength alloy steel
4. Temperature Rating: –46°C to +121°C
5. Connection Type: Hammer union / flange / threaded / welded ends
6. Sealing Type: NBR, HNBR, or FKM seals for H₂S & CO₂ environments
7. Rotation Capability: Full 360° rotation, minimizing mechanical stress
8. Surface Treatment: Anti-corrosion coating for extended service life

Advantages

Allows smooth rotation to prevent pipeline twisting

High sealing reliability under fluctuating pressure

Compatible with standard API hammer unions and adapters

Compact, durable design suitable for onshore and offshore use

Easy assembly, inspection, and maintenance

Applications

1. Oilfield drilling and workover operations
2. Wellhead and choke manifold flowline systems
3. Fracturing, cementing, and acidizing units
4. High-pressure transfer lines for mud, gas, or cement
5. Testing and production facilities requiring flexible pipeline connections