Hose coupling
Discover over 230 industrial-quality brass claw couplings, suitable for drinking water thanks to NBR seals. The selection includes various lug spacings as well as matching hose supports as accessories.
Buy hose coupling — Guide & Tips
In the category Hose coupling you will find 235 items from the area of brass connectors. These couplings are often referred to as Claw coupling or Quick coupling are referred to and are particularly suitable for connections between hoses and faucets, pumps, or irrigation systems. The industrial-grade brass material ensures durability and corrosion resistance – even with frequent use in the garden or on construction sites.
A decisive feature is the lug spacing: It determines whether the coupling fits your existing system. When purchasing, pay attention to the standardized distances so that the coupling closes flush. All claw couplings offered here are equipped with NBR seals equipped and therefore suitable for drinking water – an important criterion if you use the coupling in the garden or for irrigating crops.
Additionally, you often need matching Hose supports, to securely fix the hose onto the nipple. The combination of coupling, hose support, and a hose clamp ensures a tight, pressure-resistant connection. For DIY enthusiasts and hobby gardeners, a coupling with a 1" or 3/4" thread is recommended – depending on the diameter of your water connection. Professionals often opt for variants with 1 1/2" or 2" for higher flow rates.
Also pay attention to the ambient temperature and the pressure range: brass couplings withstand up to 10 bar, which is sufficient for almost all household and garden applications. If you use the coupling outdoors permanently, a cover or frost-proof installation is recommended. Tip: Measure the inner diameter of your hose and the outer diameter of the connection before buying – this way you avoid wrong purchases.
Popular Hose Couplings
The following products show typical variants that are frequently requested in practice. They cover different connection types and help you find the right combination for your application.
2/3 Hose Connector Brass 1" Female – 25 mm
Direct connector for hoses with 25 mm inner diameter – ideal for fixed installations on faucets or pumps.
Brass Hose Barb with O-Ring 1" Male x 25 mm Barb
Hose nipple with O-ring for secure sealing – suitable for 25 mm hoses and 1" external thread.
Stainless steel W4 hose clamps 12 mm, 20 – 32 mm
Matching stainless steel hose clamps for hoses with 20 to 32 mm diameter – rust-proof and durable.
The hose connector is especially suitable for a permanent connection to a water tap or pump – it is screwed directly onto the thread and the hose is secured with a clamp. The hose nipple with O-ring is a flexible solution when you need to change the hose frequently or switch between different devices. The Stainless steel hose clampsare the suitable accessories to secure both connections pressure-tight. Combine these parts according to your specific connection: Measure the diameter of your hose and select the coupling with the appropriate nipple.
Frequently asked questions
What is the difference between a claw coupling and a quick coupling?
Essentially, it is the same principle: A claw coupling (also called quick coupling) connects two hose or pipe ends by simply inserting and locking with two claws. The term "claw coupling" emphasizes the mechanical locking, while "quick coupling" describes the fast connection without tools. Both variants are identical in this category and are often used synonymously. Pay attention to the lug spacing, as it must match your existing system.
Why are NBR seals suitable for drinking water?
NBR (nitrile rubber) is an elastomeric material that is resistant to water, oils, and many chemicals. It meets the requirements of the drinking water regulation (e.g., KTW recommendation) as it does not release any harmful substances and remains flavor-neutral. The NBR seals installed in this category are specifically approved for contact with drinking water. They age very little and maintain their sealing effect even with temperature fluctuations. They are also the first choice for use in the garden with rainwater or service water.
What lug spacing do I need for my hose coupling?
The lug spacing is the distance between the two locking lugs on the coupling. Common standards are 32 mm, 38 mm, or 42 mm – depending on the manufacturer and system. Either measure the distance on your existing coupling or check the specifications on the hose connection. Many garden irrigation systems use 38 mm, while industrial applications often use 32 mm. The lug spacing is specified in the product description of each coupling. If in doubt, choose a coupling with adjustable or multiple lugs – these are available as special items.
How do I properly install a hose coupling?
1. Cut the hose end smoothly and slide a hose clamp onto the hose. 2. Insert the hose support (if present) into the hose to prevent it from collapsing. 3. Slide the coupling onto the hose until the hose sits flush against the end of the nipple. 4. Tighten the hose clamp directly behind the bead of the coupling (not over the bead). 5. Tighten hand-tight, then give it half a turn – for brass couplings, this is sufficient to ensure a tight seal. When connecting with a thread, wrap some Teflon tape around the male thread for additional sealing.
Other categories
If you need more than simple couplings, but rather more complex connections or alternative plug-in systems, it is worth taking a look at the related categories. The Brass Connectors category includes the entire range of brass fittings – including elbows, tees, reducers, and end caps. These parts are ideal when you are planning a fixed pipe or a branch in your irrigation system.
The Push-fit systemoffers an alternative to the classic hose coupling: here the connectors are simply inserted into the hose and held by a clamping fixture. The plug-in system is particularly quick to assemble and is ideal for temporary setups or for DIY enthusiasts who want to work without tools. Note, however, that plug-in connectors are generally designed for lower pressures (up to 6 bar) than the solid brass claw couplings.
For most applications in the garden, household, or on construction sites, the hose couplings shown here are the robust and durable choice. Combine them with matching hose supports and clamps from the accessories – this gives you a pressure-resistant and tight connection that lasts for years.