Barcelona Couplings — Three-Lug Quick-Connect Fittings
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Barcelona Couplings — Three-Lug Quick-Connect Fittings
Barcelona Couplings are three-lug quick-connect fittings for delivery hose lines, forged from aluminium and brass to UNE 23400. Covering 3/4" to 2-1/2" with BSP threads, they seal to 16 bar (232 psi) using NBR gaskets rated -30°C to +120°C, locking in a single quarter turn for fast, reliable connection and disconnection on site.
Description
Ca-Fire Protection Co.,Ltd is one of the most credible manufacturers and suppliers of barcelona couplings — three-lug quick-connect fittings in China. Welcome to wholesale custom made fire equipment products at competitive price from our factory. Contact us for more cheap products.
Products Description
Barcelona Couplings
Quick‑Connect Hose Coupling · UNE 23400
A three‑lug interlocking coupling engineered for fast, secure connection and disconnection on delivery hose lines. Forged from aluminium and brass to the Spanish UNE 23400 standard.
3/4″ – 2‑1/2″
16 BAR / 232 PSI
BSP THREAD
NBR GASKET
Why Barcelona Couplings
Three‑Lug Interlock
Seats and locks in a single quarter turn, so crews can connect and break down hose lines quickly without tools, even under gloves.
01
Forged, Not Just Cast
Forged aluminium and brass bodies hold tighter tolerances and take more repeated cycling than a standard cast fitting.
02
UNE 23400 Compliant
Dimensions and lug geometry are built to the Spanish national standard, keeping every size interchangeable across a fleet.
03
Wide Service Range
NBR gaskets seal from −30°C to +120°C, so the same coupling works through cold stores and hot process lines alike.
04
Specifications
Normative Regulation
UNE 23400
Size Range
3/4″ – 2‑1/2″
Thread Type
BSP
Materials
Aluminium
Materials
Brass
Working Pressure
16 Bar
How the Lock Works
Every Barcelona coupling connects the same way, regardless of size - align, insert, twist. That consistency is what makes it fast to train crews on and safe to use in low-visibility or emergency conditions.
Align the lugs
Line up the male half's collar with the three lugs on the female body so they can pass into the housing.
Insert and seat
Push the male half fully home against the NBR gasket to form the seal before any rotation is applied.
Twist to lock
A quarter turn drives the lugs into their tracks, drawing the joint tight and locking it against working pressure.
Where It's Used
| Nominal Size | Lug Distance |
|---|---|
| 1″ | 42 mm |
| 1-1/2″ | 62 mm |
| 2-1/2″ | 88 mm |
Where It's Used
Barcelona couplings are built for delivery lines - anywhere hose needs to be broken down and reconnected repeatedly, rather than left in a fixed run.
SITE 01
Fire Delivery Lines
Quick connection between pump outlets, relay lines, and portable dam or tank feeds during firefighting operations.
SITE 02
Irrigation & Agriculture
Fast changeover on transfer hose runs between pumps, reels, and field distribution points.
SITE 03
Industrial Fluid Transfer
Temporary hose runs for water, dewatering, and general liquid transfer where lines are set up and struck often.
FAQ
Q: What's the difference between the aluminium and brass cap & chain?
A: Both are cast to the same dimensions and lock the same way. Aluminium is lighter and lower cost for general use; brass adds corrosion resistance for wet, coastal, or marine environments.
Q: Do Barcelona couplings interconnect with Storz or camlock fittings?
A: No. The three‑lug Barcelona profile is specific to UNE 23400 and is not interchangeable with Storz or camlock geometry. Match couplings on both ends of a line to the same standard.
Q: Is the coupling suitable for permanent, fixed installations?
A: It's built and rated for delivery applications - lines that are connected and disconnected repeatedly - rather than for permanent, fixed piping.
Q: What gasket temperature range should I plan around?
A: The standard NBR gasket is rated −30°C to +120°C, covering most outdoor and process conditions without a special order.
Our address
NO.8, YUANFENG ROAD, MEIYUAN VILLAGE, KANGMEI TOWN, NANAN CITY, QUANZHOU CITY, FUJIAN CHINA
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