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Mirror Polished 3A SS304 Concentric Reducer for Clean Process Piping

Categories Steel Fitting
Connection Configuration: Butt Weld or Tri-Clamp
Hygienic Standard: 3-A, ASME BPE, SMS, DIN 11850, ISO 2037
Material Designation: ASTM A270 TP304 / UNS S30400
Surface Condition: Oxide-Free, Burr-Free
Surface Passivation: Chemical Passivation Available
Inspection & Documentation: Surface Roughness Report, EN 10204 3.1
Surface Finish Classification: BA, MP, EP
Internal Surface Roughness: Ra ≤ 0.8 μm (Custom Available)
Brand Name: YUHONG
Model Number: 3-A SS304 Sanitary Concentric Reducer
Certification: ISO, TUV, PED etc.
Place of Origin: CHINA
MOQ: 300KGS
Price: Negotiable
Payment Terms: T/T & L/C at sight
Supply Ability: According to customer's request
Delivery Time: Depends on order quantity
Packaging Details: PE protective sleeves, capped ends and export plywood cartons or cases.
Company Info.
Yuhong Group Co.,Ltd
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Mirror Polished 3A SS304 Concentric Reducer for Clean Process Piping


3-A SS304 Sanitary Concentric Reducer



Product Overview

Hygienic Flow Transition for Sanitary Process Piping


The SS304 Sanitary Concentric Reducer is designed to provide a smooth diameter transition in hygienic piping systems while maintaining consistent flow characteristics and cleanability. Manufactured from ASTM A270 stainless steel tubing, it features precision welding, controlled polishing and dimensional accuracy suitable for sanitary applications. ASTM A270 sanitary tubing supports special surface finishes for dairy, food and pharmaceutical service.


Available with weld ends or clamp ends, the reducer is suitable for food processing, beverage production, dairy facilities, pharmaceutical plants and biotechnology systems. Internal and external polishing can be customized to meet project surface finish requirements.



Technical Specifications


Item

Specification

Product Name

SS304 Sanitary Concentric Reducer

Material

ASTM A270 TP304 / UNS S30400

Standard

3-A, ASTM A270, SMS, DIN, ISO, ASME BPE

Product Type

Concentric Reducer

Connection

Weld End / Clamp End

Manufacturing Process

Tube Forming & Automatic TIG Welding

Surface Finish

BA, MP or EP

Surface Roughness

Customized Ra Value

Size Range

DN10–DN200 (Custom Available)

Inspection

PMI, Dimensional Inspection, Surface Roughness Test

Certification

EN 10204 3.1



Mirror Polished 3A Fittings Product Features


  • Hygienic Flow Transition

The concentric design maintains uniform flow while minimizing turbulence during diameter reduction.

  • Controlled Surface Finish

Mechanical polishing or electropolishing helps improve cleanability and reduces product retention.

  • High-Quality Weld Construction

Automatic TIG welding delivers consistent weld integrity and dimensional accuracy.

  • Suitable for CIP & SIP

Designed for hygienic process systems requiring effective Clean-in-Place (CIP) and Sterilize-in-Place (SIP) procedures.

  • Broad Standard Compatibility

Available according to 3-A, ASME BPE, SMS, DIN and ISO dimensions.



Applications of 3-A SS304 Concentric Reducer

  • Dairy Processing Systems

  • Beverage Production Lines

  • Pharmaceutical Manufacturing

  • Biotechnology Facilities

  • Food Processing Equipment

  • Cosmetic Processing

  • Purified Water Systems

  • Clean Process Piping



Equivalent Standards


Standard

Description

3-A

Hygienic Dairy Standard

ASME BPE

Bioprocess Equipment

SMS

Swedish Dairy Standard

DIN 11850 / DIN 11866

Hygienic Tube System

ISO 2037

Stainless Steel Hygienic Tubing



Inspection & Testing

  • PMI

  • Surface Roughness Measurement

  • Weld Visual Inspection

  • Dimensional Inspection

  • Ferrite Measurement (Optional)

  • EN 10204 3.1 Certification



Recommended Custom Attributes


Attribute

Value

Material Designation

ASTM A270 TP304 / UNS S30400

Fitting Configuration

Concentric Reducer

Surface Finish Classification

BA / MP / EP

Internal Surface Roughness

Customized Ra Value

Connection Configuration

Weld End or Clamp End

Hygienic Compliance

3-A, ASME BPE, SMS, DIN

Cleanability

CIP & SIP Compatible

Process Compatibility

Food, Dairy, Beverage, Pharmaceutical & Biotechnology



FAQ


1. What is a sanitary concentric reducer used for?
It provides a smooth transition between different tube diameters while maintaining hygienic flow conditions.


2. What surface finishes are available?
Bright Annealed (BA), Mechanical Polished (MP) and Electropolished (EP).


3. Can custom polishing be supplied?
Yes. Internal and external Ra values can be produced according to project specifications.


4. Which connection types are available?
Weld ends and clamp ends are available depending on the piping system.



Concentric Reducer vs Eccentric Reducer


Feature

Concentric Reducer

Eccentric Reducer

Flow Pattern

Symmetrical

Offset

Installation

Vertical Lines

Horizontal Lines

Typical Application

Hygienic Process Systems

Pump Suction & Drainage



Hygienic Surface Finish Guide


Finish

Typical Application

BA

General hygienic piping

MP

Food & Beverage

EP

Pharmaceutical & Biotechnology


/3a-ss304-sanitary-concentric-reducer


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