Stainless steel male-thread coupling with fluoroelastomer seal, DIN 3489, max. PN 16, sizes G 1/2" – G 1"

Krause K+K male-thread coupling made of V4A / 1.4401 / AISI 316 stainless steel with FKM/FPM seal and 42 mm claw spacing. Corrosion- and acid-resistant design for demanding compressed air applications up to PN 16.

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 |  Item No. 001-07-VA
Regular price 439,00 Kč
incl. VAT / CHF excl. VAT, Shipping costs are calculated at checkout.
male thread
Delivery time: approx. 4–6 business days

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Krause K+K Stainless Steel Male-Thread Coupling DIN 3489 – V4A with FKM/FPM Seal for Demanding Compressed Air Systems

The stainless steel male-thread coupling from Krause K+K is a corrosion-resistant version of the proven 42-mm claw coupling system. It is designed for professional compressed air applications where there are higher requirements for material and media resistance than with a standard coupling.

The coupling body is made of V4A stainless steel / material 1.4401 / AISI 316. Fluoroelastomer (FKM/FPM) is used as the seal. The claw spacing is 42 mm, and the maximum operating pressure is PN 16. Krause K+K lists applications in the chemical and petrochemical industries, among others, for this stainless steel series.


Benefits

✅ V4A stainless steel / 1.4401 / AISI 316
✅ FKM/FPM fluoroelastomer seal
✅ 42 mm claw spacing
✅ Corrosion-resistant design for demanding environments
✅ Male thread for direct system integration
✅ Three common thread sizes available
✅ For professional compressed air systems
✅ Maximum operating pressure PN 16


Technical Specifications
Feature Value
Translation male-thread coupling
Coupling system DIN 3489
claw spacing 42 mm
Material Stainless Steel V4A / 1.4401 / AISI 316
Gasket Fluoroelastomer FKM/FPM
operating pressure max. PN 16

Variants
male thread Item No. / SKU
G 1/2" 001-07-VA
G 3/4" 001-09-VA
G 1" 001-11-VA

How It Works and Compatibility

✔ Symmetrical claw coupling design with a 42 mm claw spacing
✔ Locking by turning the coupled connection
✔ Standardized coupling head within the compatible 42-mm claw coupling series
✔ The male thread allows for direct mounting on fittings, pipes, and machines
✔ The FKM/FPM seal complements the corrosion-resistant stainless steel body for demanding operating conditions


Applications

✔ Chemical and Petrochemical Industry
✔ Compressed air systems susceptible to corrosion
✔ Mechanical and Plant Engineering
✔ Production environments with elevated material requirements
✔ Professional compressed air and process applications within the permissible operating parameters


FAQ

What type of stainless steel is used?
V4A / Material 1.4401 / AISI 316.

Which seal is installed?
Fluoroelastomer FKM/FPM.

What is the claw spacing of the coupling?
42 mm.

What is the maximum operating pressure?
PN 16.

What thread sizes are available?
G 1/2", G 3/4", and G 1".

For which environments is the stainless steel version particularly suitable?
For applications with increased requirements for corrosion and media resistance, such as in the chemical and petrochemical sectors.


Conclusion

The Krause K+K stainless steel male-thread coupling DIN 3489 is a high-quality solution for demanding compressed air installations. V4A stainless steel, an FKM/FPM seal, a 42 mm claw spacing, and PN 16 combine the proven jaw coupling principle with a significantly more corrosion-resistant material design.

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