Carbon Steel Reducing Weld Neck Flange
One-piece integral molding: The flange neck and the large end port have the same diameter, and the end of the neck transitions to the small end port (e.g., 12" × 10").
Conical tapering: The smooth inner conical surface optimizes the flow state, reducing turbulence and pressure loss.
Full penetration weld: The weld joint is made by high-integrity butt welding with the pipe.
- Product Introduction
** Reduced diameter welded neck flange (Reducing Weld Neck Flange)
-- The ultimate connection solution for high-pressure reducer pipe systems **
** Precision Design · Seamless Transition · Ultimate Reliability | [Your Company Name] Professional Manufacturing **
Product Definition and Technical Positioning
Reduced diameter weld neck flanges are an advanced type of weld neck flanges (WN), specifically designed for the connection of high-pressure pipes with different diameters. Their structural features include：
One-piece integral molding
The flange neck and the large end port have the same diameter, and the end of the neck transitions to the small end port (e.g., 12" × 10").
Conical tapering
The smooth inner conical surface optimizes the flow state, reducing turbulence and pressure loss.
Full penetration weld
The weld joint is made by high-integrity butt welding with the pipe.
- Solve the leakage risk and installation redundancy pain points of the traditional reducer + standard flange combination
Core application scenarios
Suitable for critical systems requiring high-pressure sealing and variable diameter transmission.：
Oil and gas energy
Wellhead equipment, compressor outlet pipeline, fractionating tower reducer interface
01
Chemical process
Reactor inlet and outlet, pump and valve reducer connection, high-pressure raw material conveying pipeline
02
Electric power project
Main steam pipe diameter change, high-pressure interface of feedwater system
03
Ocean engineering
FPSO deck piping, subsea pipeline onshore section
04
Special equipment
High-pressure heat exchangers, hydrogenation reactors, supercritical fluid systems
05
Five major technical advantages
✅ **1. The King of High-Pressure Sealing **
- ** Inheriting all the advantages of the welded neck flange **：
- The long-neck design disperses mechanical stress and increases fatigue resistance by 40%.+**
- The full penetration welds are subject to 100% RT/UT inspection to eliminate the risk of incomplete fusion defects.
- Applicable pressure: **Class 150~2500** (ASME B16.5)
- Temperature range: **-196°C to +800°C** (depending on the material)
✅ **2. Flow state optimization expert **
- ** Precision conical transition zone **：
✅ **3. ** Reduce connection points by 50%**：
Full coverage of materials
CS(A105)｜SS(304/316L)
AS(F11/F22)｜SDSS(2205)｜CRA(Inconel 625)
|
Spec. |
SCOPE |
|
size |
DN50×40 ~ DN1200×1000 |
|
pressure |
PN10~PN420 / Class150~2500 |
|
facing |
RF ｜RTJ ｜FF |
|
Approval system |
PED 2014/68/EU｜ASME Sect VIII｜ISO 9001｜TA-Luft |
Hot Tags: carbon steel reducing weld neck flange, China carbon steel reducing weld neck flange manufacturers, suppliers, factory, Carbon Stee ASME B16 36 Orifice Flanges, Carbon Steel Weld Neck Flange, Flange Long Welding Neck, Stainless Steel Weld Flanges, Stainless Steel Weld Neck Flange, weld neck flange
