Galvanized Fittings

Galvanized Reducing Sockets

Galvanized Reducing Sockets

A galvanized reducing socket is a zinc-coated malleable cast iron fitting with two female-threaded ends that joins two galvanized pipes of different sizes in a straight line.

It is used for transitions from a water main to a smaller distribution line, from a booster set outlet to a service line and from an irrigation main to branch lines. 21 sizes from 1/2″ × 3/8″ to 4″ × 3″ are available.

21 sizescombinations (product range)
4″ × 3″largest size
2 × Rpfemale threads of different sizes
Zinc coatedinner and outer surface

Main Applications

  • Transition from water main to distribution line
  • Matching booster set and pump port sizes
  • Transition from irrigation main to branch lines
  • Stepwise size reduction in sprinkler lines
  • Pipe size changes at tank outlets
  • Joining pipes of different sizes in renovations

Technical Data

Fitting typeReducing socket, two female-threaded ends
Product standardTS EN 10242, design symbol A (manufacturer information)
MaterialMalleable cast iron (depending on model)
CoatingHot-dip galvanized
Coating massAverage at least 500 g/m² (sales sheet information)
ThreadISO 7-1 Rp parallel female thread, different size on each end
Size range1/2″ × 3/8″ – 4″ × 3″ (product range)
Example sizes3/4″ × 1/2″, 1 1/4″ × 1″, 2″ × 1 1/4″, 3″ × 2 1/2″ (product range)
Number of sizes21 combinations (product range)
Permissible pressure25 bar, −20 … +120 °C (EN 10242, design A)
Leak testAt least 5 bar air or 20 bar water (sales sheet information)
Male-female transitionWith a galvanized reducing bush

Material Options

PartGalvanized malleable ironBlack malleable ironStainless steel casting
BodyMalleable iron EN-GJMB-350-10 (depending on model)Blackheart malleable cast iron B 350-10Investment casting 1.4408 (AISI 316 equivalent), depending on model
SurfaceHot-dip zincBlack, uncoatedStainless, uncoated
ThreadISO 7-1 Rp female thread (two sizes)ISO 7-1 Rp female thread (two sizes)Depending on model
Pressure rating25 bar −20…120 °C (EN 10242)25 bar −20…120 °C, 20 bar 300 °C (EN 10242)Depending on model
Suitable mediaCold domestic water, fire and irrigation waterClosed heating water, gas, compressed airCorrosive media and media requiring hygiene

Which material? At size transitions between galvanized pipes a galvanized reducing socket keeps the coating continuous; black reducing sockets are used on black pipes.

Advantages

Size Transition in One Piece

  • One body instead of a socket and reducer

Coating Continuity

  • Zinc protection is not interrupted at the transition

21 Sizes

  • Wide choice up to 4″ × 3″

Straight Line

  • The transition stays on the pipe axis without a turn

Construction and Design Features

  • Two Rp female-threaded ends of different sizes on the same axis
  • Stepped internal transition from the large to the small end
  • Hot-dip zinc-coated body
  • TS EN 10242 design A

Send the large and small size and the quantity; we will confirm the galvanized reducing socket in stock right away.

How to Choose?

  1. Measure both pipe sizesDetermine the large and small pipe sizes to be joined.
  2. Choose the fittingUse a reducing socket if both sides are pipe and a reducing bush if one side is a female port.
  3. Write the sizeUse the order large × small when ordering.
  4. Confirm the mediumChoose galvanized fittings on water and irrigation lines.

Complementary Products

Why ORFA?

Since 1985Over 40 years of experience in supplying industrial piping equipment.
Technical ConsultancyGuidance for galvanized reducing sockets on size transitions and fitting type.
Delivery from StockGalvanized reducing sockets in 21 sizes are shipped from stock.
Spare PartsSealing and Insulation Tapes for size transitions from a single source.
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