Brass Fittings

Brass Hex Nipples

Brass Hex Nipples

A brass male-female adaptor has one male-threaded end and one female-threaded end. Equal-size types extend a threaded connection, reducing types provide a size transition.

It is used for valve and tap extensions, changing the thread gender at a device port and instrument connections. 13 sizes between 1/8″ and 1 1/2″ are available.

Male + femalethreaded ends
13 sizesequal and reducing (product range)
1/8″ – 1 1/2″size range (product range)
PN16nominal pressure (similar manufacturer sheet)

Main Applications

  • Valve and tap extensions
  • Converting a male port to a female connection
  • Instrument connections
  • Adjusting combi boiler and water heater connections
  • Compressed air equipment adaptors
  • Adjusting connection depth in walls

Technical Data

Fitting typeMale-female adaptor
ThreadOne end male, one end female; G or R (depending on model)
Sizes1/8″ – 1 1/2″, 13 sizes; e.g. 1/2″ × 1/2″, 3/4″ × 3/4″, 1/2″ × 1/4″, 3/8″ × 1/4″ (product range)
MaterialBrass CW617N (similar manufacturer sheet; depending on model)
Nominal pressurePN16 (similar manufacturer sheet)
Max. working temperature160 °C (similar manufacturer sheet)
SurfaceNatural brass
TypesEqual size (extension) and reducing
BodyWith hexagonal wrench surface (depending on model)
InstallationWith thread sealing tape, hemp or sealant
ProductionMachined from bar (depending on model)
MediaWater, heating water, compressed air

Material Options

PartBrassNickel-plated brassStainless (AISI 304)
BodyBrass CW617N (depending on model)Brass body, nickel plated (depending on model)AISI 304 stainless steel
SurfaceNatural brassNickel platingUncoated stainless
ThreadMale + female, G / R (depending on model)Depending on modelISO 7-1
Pressure ratingPN16, max. 160 °C (similar manufacturer sheet)Depending on model20 bar −20…+38 °C (ISO 4144)
Suitable mediaDomestic water, heating water, compressed airVisible fixture connectionsFood, chemicals, seawater

Which material? For brass valve and tap extensions the adaptor gives a transition in the same material as the fixture; stainless adaptors are chosen for aggressive media.

Advantages

Extension and Transition in One

  • Equal and reducing types

Changes Thread Gender

  • Female connection on a male port

Compact

  • One piece, short length

13 Sizes

  • From 1/8″ to 1 1/2″

Construction and Design Features

  • Male thread on one end, female thread on the other
  • Hexagonal wrench surface (depending on model)
  • Brass machined from bar
  • Installation without welding

Send the male and female thread sizes and the quantity; we will confirm the suitable adaptor from stock.

How to Choose?

  1. Determine the port typeIf the port is female, the male end of the adaptor screws into it.
  2. Measure the sizesDetermine both end sizes; choose an extension if equal, a reducing type if different.
  3. Check the extension lengthAssess the length needed for in-wall or fixture connections.
  4. Write the sizeUse the order male × female when ordering.

Complementary Products

Why ORFA?

Since 1985Over 40 years of experience in supplying industrial piping equipment.
Technical ConsultancyGuidance for brass adaptors on thread gender and size compatibility.
Delivery from StockBrass male-female adaptors in 13 sizes are shipped from stock.
Spare PartsSealing and Insulation Tapes for adaptor connections from a single source.
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