Male-thread coupling with NBR rubber seal, DIN 3489, malleable cast iron, galvanized, max. PN 10, sizes G 1/4" to G 1 1/4"
Robust male-thread coupling according to DIN 3489 for general compressed-air systems. Made of galvanized cast iron with a 42 mm claw spacing, safety double lugs and an NBR rubber seal. Max. operating pressure PN 10, available in G 1/4", G 3/8", G 1/2", G 3/4", G 1" and G 1 1/4".
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Male-thread coupling with NBR rubber seal, DIN 3489, malleable cast iron, galvanized, max. PN 10, sizes G 1/4" to G 1 1/4" - 1/4" está agotado y se enviará tan pronto como vuelva a estar disponible.
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Questions & Help
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Leasing & Hire Purchase
Leasing & Hire Purchase
We offer the financing options leasing and hire purchase exclusively to businesses, commercial operators and self-employed persons for selected products with a net order value of €1,000 or more. Below you will find the key differences between the two forms of financing.
Leasing
With leasing, the product is made available to the lessee for use in return for regular lease payments. The asset is recognized on the lessor’s balance sheet. Lease payments can generally be claimed as operating expenses for tax purposes. These are gross payments, and VAT is charged throughout the entire term. Once the agreed minimum lease term has expired, purchasing the product is generally possible.
Hire purchase
In economic terms, hire purchase is equivalent to an installment purchase. The product is capitalized on the hire purchaser’s balance sheet and depreciated in accordance with the official depreciation tables. Ownership of the asset transfers to the hire purchaser upon payment of the final hire-purchase installment. VAT must be paid in full with the first hire-purchase installment (a pass-through item).
Shipping & Delivery
Shipping & Delivery
We ship our goods either via parcel service or via a freight forwarding company, depending on their size, weight and characteristics. We select the shipping method at our reasonable discretion.
The delivery times stated in the online shop are non-binding estimates, unless a binding delivery date has been expressly agreed in writing. They are based on the information available from our manufacturers, suppliers and logistics partners at the time the order is placed.
A large proportion of the products offered are shipped directly from the manufacturer or from external central warehouses (direct shipment). As a result, delivery times may differ from the stated guidelines. In particular, material shortages, production delays, supply bottlenecks, force majeure or other circumstances for which we are not responsible may result in delivery delays.
Disclaimer:
We accept no liability for delivery delays resulting from circumstances beyond our control. This applies in particular to delays caused by manufacturers, upstream suppliers, transport companies or other third parties. Liability for any resulting damages, in particular indirect damages, consequential damages or loss of profit, is excluded to the extent permitted by law.
Partial deliveries are permitted insofar as they are reasonable for the customer. They will not result in additional shipping costs unless otherwise agreed.
The exact delivery time for an item can be provided individually on request, either before or after placing the order.
Please contact us by telephone at +49 (0)2551 5030 or by email at shipping@strahltechnik-express.de.
If significant delivery delays occur, we will inform the customer without undue delay. Mandatory statutory rights of the customer remain unaffected.
Male-thread coupling with NBR rubber seal, DIN 3489, malleable cast iron, galvanized, max. PN 10, sizes G 1/4" to G 1 1/4" - 1/4" está agotado y se enviará tan pronto como vuelva a estar disponible.
Krause K+K DIN 3489 Male-Thread Coupling – Robust Compressed Air Claw Coupling with NBR Seal
The Krause K+K male-thread coupling is a robust claw coupling according to DIN 3489 for general compressed air systems in industry, workshops, and on construction sites. The symmetrical coupling system has a standardized coupling head and locks by turning it 45°.
The coupling is made of galvanized cast material, features a 42 mm claw spacing with safety double cams, and is fitted with an NBR rubber seal. The maximum operating pressure is PN 10. In our shop, the male-thread coupling is available in thread sizes from G 1/4" to G 1 1/4".
Advantages
✅ Robust and durable design for compressed air applications
✅ Standardized claw coupling system according to DIN 3489
✅ 42 mm claw spacing with safety double cams
✅ Galvanized cast construction for professional use
✅ NBR rubber seal
✅ Quick and easy coupling by turning 45°
✅ Standardized coupling head within the DIN 3489 system
✅ Maximum operating pressure PN 10
Technical data
| Feature | Value |
|---|---|
| Design | Male-thread coupling / claw coupling |
| Standard | DIN 3489 |
| Claw spacing | 42 mm |
| Claw design | Safety double cams |
| Material | Cast, galvanized |
| Seal | NBR |
| Temperature range | −40 °C to +100 °C |
| Operating pressure | max. PN 10 |
| Application | General compressed air systems |
Variants
| Variant | Male thread | Item no. / SKU |
|---|---|---|
| 1/4" | G 1/4" | 001-03 |
| 3/8" | G 3/8" | 001-05 |
| 1/2" | G 1/2" | 001-07 |
| 3/4" | G 3/4" | 001-09 |
| 1" | G 1" | 001-11 |
| 1 1/4" | G 1 1/4" | 001-13 |
Function and compatibility
✔ Symmetrical quick-coupling system with two claws
✔ Locking by turning the coupling approximately 45°
✔ Standardized coupling head within standard DIN 3489 claw couplings
✔ Different connection variants of the system can be coupled together
✔ Large through-bore for the highest possible air flow
Applications
✔ Compressed air supply in workshops and industry
✔ Compressors and compressed air lines
✔ Mobile compressed air systems on construction sites
✔ Connecting compressed air components with a male-thread connection
✔ Blasting technology and other compressed-air-powered applications within the permissible operating data
FAQ
What claw spacing does the coupling have?
The claw spacing is 42 mm.
Which seal is installed?
The coupling is fitted with an NBR rubber seal.
What is the maximum operating pressure?
The maximum operating pressure is PN 10.
Which sizes are available in our shop?
We stock the male-thread coupling in G 1/4", G 3/8", G 1/2", G 3/4", G 1" and G 1 1/4".
Is the coupling suitable for compressed air?
Yes. Krause K+K specifies this coupling series for general compressed air systems.
Conclusion
The Krause K+K male-thread coupling according to DIN 3489 is a robust and straightforward solution for professional compressed air systems. With a 42 mm claw spacing, galvanized cast construction, NBR seal, and a maximum operating pressure of PN 10, it is suitable for numerous applications in workshops, industry, construction sites, and blasting technology.
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