Does the Nickel-plated brass coupler, type A3 require Teflon tape for tapered threads and washers for cylindrical threads to ensure leak-free connections?

Yes. Nickel-plated brass coupler, type A3 requires additional seals for leak-free connections: for tapered threads use Teflon tape or thread sealant; for cylindrical (parallel) threads use aluminum or copper washers. Working pressure: 60 bar.

Can the Nickel-plated brass coupler, type A3 handle 60 bar working pressure with proper seals for leak-free pneumatic connections?

Yes. The Nickel-plated brass coupler, type A3 (60 bar working pressure) can provide leak-free pneumatic connections when fitted with the proper seals. The description states that additional sealing is usually required: use Teflon tape or pipe sealant for tapered threads, and aluminum or copper washers for cylindrical threads. With the correct seal type properly installed and compatible thread form, the coupler will maintain tightness at the specified 60 bar operating pressure.

Is the Nickel-plated brass coupler, type A3 compatible with standard pneumatic hose fittings and seals?

Yes. the Nickel-plated brass coupler, type A3 is compatible with standard pneumatic hose fittings, but proper sealing depends on the thread type and additional seals. Key points: - Function: Type A3 is designed for connecting pneumatic components, including hoses. - Compatibility: It physically mates with standard pneumatic fittings that share the same thread form and size. - Sealing requirements: - Tapered thread (e.g., NPT): requires Teflon tape or a suitable thread sealant for a reliable, leak-free joint. - Cylindrical thread (e.g., BSPP/straight): requires a mechanical sealing element such as an aluminum or copper washer/flat gasket to ensure tightness. - Material and pressure: Made of nickel-plated brass and rated to 60 bar, so it is suitable for typical pneumatic system pressures when installed correctly with the appropriate seals. Conclusion: Use the Nickel-plated brass coupler, type A3 with matching standard threads and fit it with the recommended seal (Teflon/sealant for tapered threads; aluminum/copper washer for cylindrical threads) to ensure a proper, leak-free connection.

Nickel-plated brass coupler, type A3

All products, Threaded pneumatic fittings/

Additional information

Material	B – brass (bronze)

Type A3 coupling designed for connecting pneumatic components (including hoses) together. The tightness of the connection usually requires the use of additional seals. In the case of a tapered thread, Teflon tape or sealant is needed; for a cylindrical thread, aluminum or copper washers are required. Material: nickel-plated brass. Working pressure: 60 bar.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
MW-2103000	A3 coupling, G5 M5	-	60
MW-2103001	A3 coupling, GW BSP 1/8"	-	60
MW-2103002	A3 coupling, GW BSP 1/4"	-	60
MW-2103003	A3 coupling, GW BSP 3/8"	-	60
MW-2103004	A3 coupling, GW BSP 1/2"	-	60

Type A3 coupling designed for connecting pneumatic components (including hoses) together. The tightness of the connection usually requires the use of additional seals. In the case of a tapered thread, Teflon tape or sealant is needed; for a cylindrical thread, aluminum or copper washers are required. Material: nickel-plated brass. Working pressure: 60 bar.