RANGE / BRASS FITTINGS

Brass fittings.

Unions, elbows, tees, hex nipples, extension nipples, adaptors, reducing unions, hose collars, bush and cross fittings, 1/8″ to 2″, in Flare, UNF, BSP, NPT and SAE thread forms, plus flare nuts, long flare nuts, flare unions, half unions, flare tees and flare crosses.
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What we stock.

16 items in this line, confirmed on the call for stock and trade price.
Brass union with male threads on both ends, a central hex and an olive seat in each mouth

Brass union

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass 90° elbow with female threads on both ends

Brass elbow

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass equal tee with three female threaded ends

Brass tee

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass hex nipple with male threads on both ends

Brass hex nipple

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass extension nipple with male threads at both ends

Brass extension nipple

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass adaptor with a female-threaded hex body and a smaller male thread

Brass adaptor

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass reducing union with a larger male thread on one end, a smaller male thread on the other and a central hex

Brass reducing union

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass hose collar with a barbed hose tail, a hex and a male thread

Brass hose collar

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass bush with a hex head, a male outer thread and a female inner thread

Brass bush

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Brass equal cross with four female threaded ends

Brass cross

Sizes from 1/8″ up to 2″. Flare / UNF / BSP / NPT / SAE threads. Custom sizes can be sourced on order.
Forged brass flare nut with a hex body and a rounded crown

Brass flare nut

Forged brass, 1/4″ to 3/4″, in the R22 and the R410A/R32 pattern. SAE 45° flare, UNF threads.
Long brass flare nut with a hex and a long round shank

Brass long flare nut

Flare nut with a long shank that supports the tube. SAE 45° flare, UNF threads. Custom sizes can be sourced on order.
Brass flare union with a male 45° flare on both ends and a central hex

Brass flare union

Male SAE 45° flare on both ends, UNF threads, to join two flared tubes. Custom sizes can be sourced on order.
Brass half union with a male 45° flare on one end and a male NPT thread on the other

Brass half union (flare × NPT)

Male SAE 45° flare on one end, male NPT pipe thread on the other. Custom sizes can be sourced on order.
Brass flare tee with three male 45° flare ends

Brass flare tee

Male SAE 45° flare on all three ends, UNF threads. Custom sizes can be sourced on order.
Brass flare cross with four male 45° flare ends

Brass flare cross

Male SAE 45° flare on all four ends, UNF threads. Custom sizes can be sourced on order.

Brass fittings and flare nuts.

What is a brass flare nut, and which sizes do you stock?

A flare nut clamps a flared copper tube end onto a male flare fitting or an AC service valve, making a removable, leak-tight joint. Refrigeration Centre stocks forged brass flare nuts from 1/4″ to 3/4″ in boxed quantities. R410A and R32 units use larger 1/2″ and 5/8″ nuts (26 mm and 29 mm across flats) than the older R22 pattern (24 mm and 27 mm), so match the nut to the unit; Refrigeration Centre stocks both the R22 and the R410A/R32 pattern. See flare or brazed joints.

Which brass fitting thread forms do you stock?

Refrigeration Centre stocks brass fittings from 1/8″ to 2″ in five thread forms. Flare (SAE 45°) fittings seal on the flared tube and are used on AC and refrigeration lines, and UNF is the fine thread those flare fittings use. BSP and NPT are pipe threads: BSP is common on British, European and Asian equipment, NPT on American. Tell us the thread and size, or send a photo, and we will confirm what is on the shelf.

How do I identify a UNF, BSP or NPT thread?

Measure the thread’s outside diameter and count threads per inch with a thread gauge. SAE flare fittings use UNF threads — for example 7/16″-20 on a 1/4″ flare, 5/8″-18 on 3/8″, 3/4″-16 on 1/2″ and 7/8″-14 on 5/8″. NPT is tapered with a 60° thread angle; BSP has a 55° angle and comes parallel (BSPP) or tapered (BSPT). When unsure, send a photo of the part next to a ruler.

Do you stock uncommon brass fitting sizes?

Fast-moving sizes are held on the shelf, and less common sizes and threads can be sourced. Send the size, thread and quantity — or a photo of the old part on WhatsApp — and Refrigeration Centre will confirm availability and lead time.

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