Stainless Steel Pipe Fittings

Innovative Design: Streamlined Variable Diameter Structure

Utilizes a hydraulically optimized conical transition section

Smooth, continuous inner wall reduces turbulence generation

Gradual reduction angle controlled at 15°, reducing pressure loss by 35%

Precise Dimension Control

Strict concentricity between large and small ends ensures error-free installation

Scientifically calculated wall thickness gradient meets strength requirements

Complete thread profile ensures sealing performance

Product Matrix: Classified by Variable Diameter Range

Standard Manifolds: 1/2"→3/8", 3/4"→1/2", 1"→3/4"

Large Span Manifolds: 2"→1", 3"→1-1/2", 4"→2

Custom Manifolds: Supports non-standard size customization

By Connection Method

Threaded Manhole Cover: Both internal and external threads are pipe threads

Welded Manhole Cover: One end threaded, the other welded

Flanged Manhole Cover: Special flange reducing connection

Technical Specifications

Material: 304/316L stainless steel

Pressure Rating: PN16/PN25/PN40

Applicable Temperature: -20℃~200℃

Surface Treatment: Pickling and passivation/mechanical polishing

Core Applications

System Diameter Reduction: Connection node for transitioning from main pipeline to branch pipe

Equipment Interface: Matching different diameters of equipment and pipelines

Flow Regulation: Achieving flow rate control through diameter reduction

System Retrofitting: Size adaptation when replacing old pipelines

Professional Installation Guide ① ① Confirm the direction of the mandrel (larger diameter end connects to the main pipe)

② Clean the threads and wrap with Teflon tape (12-15 turns clockwise)

③ First, hand-screw it into the pipe at the larger diameter end.

④ Tighten with a suitable wrench, avoiding excessive force.

⑤ It is recommended to add support downstream of the reducer.

Quality Inspection

100% dimensional accuracy inspection

2x working pressure test (hold pressure for 3 minutes)

Inner wall roughness inspection (Ra≤3.2μm)

Material spectral analysis to ensure composition meets standards

Selection Points

Regular operating conditions: Select standard wall thickness 304 mandrel.

Corrosive environments: 316L material recommended.

High-pressure systems: Select thickened type or PN40 grade.

Frequent disassembly: Use with a union for greater convenience.

Stainless steel mandrel—a masterpiece of reducer design, achieving a perfect transition in piping systems!