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Pumps tanks mixers and sanitary fittings built in Wenzhou since 2002

Sanitary Valves And Fittings

Welded Reducer

Weld end reducers for permanent runs, with a smooth internal taper that leaves nothing for product to collect on.

Sanitary welded reducer SK-RD001

Overview

What This Pump Does

Sanitary welded reducers in SS304 or SS316L, models SK-RD001 and SK-RD002, for size transitions inside the DN15 to DN200 range.

Supplied to DIN, SMS, 3A, ISO and IDF standards with mirror polish to Ra below 0.5 um or matt polish, for dairy, beer, food, beverage, pharmacy and biotechnology service.

StandardDIN, SMS, 3A, ISO, IDF
Connection TypeWeld, Clamp, Thread
PolishMirror Polish Ra<0.5um or Matt Polish
ApplicationDairy, beer, food, beverage, pharmacy, biotechnology, etc

Key Benefits

A Clean Transition In A Fixed Line

No Gasket In The Joint

A welded transition removes a consumable from a section that will not be opened.

Smooth Taper

Factory formed taper keeps flow even and the bore cleanable.

Matched To The Tube

Wall thickness matched so there is no step at the weld.

Same Standards As The Line

DIN, SMS, 3A, ISO and IDF with the finish specified.

Application Scenarios

Where It Is Installed

Header Size Changes

Stepping a distribution header down as branches are taken off.

Equipment Connections

Permanent transitions into a fixed piece of equipment.

Long Runs

Reducing pipe size along a long run where the fitting will never be opened.

Who It Is For

  • Pipework contractors
  • Plants with fixed process layouts
  • Dairy and beverage producers
  • Pharmaceutical installers

Problems It Solves

Too many removable joints

Welding fixed transitions reduces the number of gaskets to maintain.

Bore steps at transitions

A matched wall thickness and factory taper keep the internal surface continuous.

Improvised adapters

A correctly sized reducer removes the temptation to bodge a transition on site.

Technical Features

How It Is Built

  • Models SK-RD001 and SK-RD002
  • SS304 or SS316L material
  • Sizes across DN15 to DN200
  • Standards DIN, SMS, 3A, ISO and IDF
  • Mirror polish Ra below 0.5 um or matt polish
  • Weld end construction

Specifications

Technical Data

Published fitting data. Give both connection sizes, the wall thickness and the standard when ordering.

StandardDIN, SMS, 3A, ISO, IDF
Connection TypeWeld, Clamp, Thread
PolishMirror Polish Ra<0.5um or Matt Polish
ApplicationDairy, beer, food, beverage, pharmacy, biotechnology, etc

Materials And Process

What Goes Into Every Unit

Materials

  • SS304 or SS316L
  • Polished internal surfaces

Manufacturing And Assembly

  • Tube forming and taper shaping
  • End preparation for welding
  • Polishing
  • Dimensional check and packing

Quality Control

  • Dimensional check against the standard
  • Surface finish verified
  • Documentation with the order

Customization Options

  • Size combination
  • Wall thickness to match the tube
  • Material grade
  • Mirror or matt polish

Compared With Other Options

Clamp reducerA clamp reducer can be removed and changed. This one is welded into a fixed run.
Industrial butt weld reducerIndustrial reducers follow piping standards and are not polished for hygienic duty.

Use Guide

Welding In A Reducer

Match Wall Thickness

The reducer and the tube must share wall thickness so the bore does not step.

Purge The Joint

Back purge to protect the internal surface during welding.

Consider Drainage

On horizontal runs, think about which orientation lets the line drain.

Passivate After Welding

Restore corrosion resistance after any welding or grinding work.

Answers

Welded Reducer FAQ

Which models are available?

SK-RD001 and SK-RD002 in the welded reducer range.

What sizes?

Transitions within DN15 to DN200. Give both ends with your enquiry.

What finish?

Mirror polish with Ra below 0.5 um, or matt polish.

Do you supply clamp end reducers too?

Yes, SK-RD003 and SK-RD004 are the clamp end versions.

Which standards?

DIN, SMS, 3A, ISO and IDF.

Related Equipment

Related Equipment From The Same Line

Related fittings from the welded and clamp ranges.

Sanitary clamp reducer SK-RD003

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Clamp Reducer

Concentric clamp reducers SK-RD003 and SK-RD004.

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Sanitary welded tee SK-TE002

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Welded Tee

Weld end sanitary tees SK-TE002 SK-TE004 and SK-TE006.

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Sanitary tri-clamp SK-CL003 with wing nut

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Tri-Clamp

Clamps SK-CL001 to SK-CL003 with gaskets to match the line.

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Need Welded Reducer Sized For Your Duty Point

Send both sizes, the wall thickness and the standard and we will quote the fittings for the run.