Is the Adapter nut for steam hose end, galvanized steel, GDB, type BOSS suitable for repeated use at 18 bar and up to +230Â°C without seal degradation?

Yes. Adapter nut for steam hose end, galvanized steel, GDB, type BOSS is designed for repeated use with saturated steam at 18 bar and temperatures up to +230Â°C. The adapterâs conical surface includes a special polymer or copper insert that mates with the spherical sealing surface, providing a steam- and highâtemperatureâresistant seal. The product specification explicitly lists working pressure 18 bar (+210Â°C) for saturated steam and an operating temperature up to +230Â°C, and notes the connection is tight yet easy to unscrew and screw repeatedly using the wing nut. Therefore, when used within these stated limits, seal degradation under repeated use is not expected.

Can the Adapter nut for steam hose end, galvanized steel, GDB, type BOSS be quickly disconnected and reconnected by hand while maintaining a steam-tight seal at high temperatures?

Yes. The Adapter nut for steam hose end, galvanized steel, GDB, type BOSS Format is designed for quick hand operation while maintaining a steam-tight seal at high temperatures. Its conical surface with a polymer or copper insert mates with the spherical sealing surface and is tightened using a wing nut, providing a secure, steam- and high-temperature-resistant connection (working pressure 18 bar at +210Â°C; operating temperature up to +230Â°C). The wing nut design allows easy manual disconnection and reconnection without tools while preserving the seal integrity.

Does the Adapter nut for steam hose end, galvanized steel, GDB, type BOSS require lubrication of the polymer/copper insert for steam service?

No. the Adapter nut for steam hose end, galvanized steel, GDB, type BOSS does not require additional lubrication of the polymer or copper insert for steam service. The insert is designed to mate with the spherical sealing surface and provide a tight, steam- and high-temperature-resistant seal up to the specified conditions (working pressure 18 bar at +210Â°C, operating temperature up to +230Â°C). Lubrication is unnecessary and could impair sealing performance or attract contaminants; follow manufacturer instructions for assembly and maintenance only.

Adapter nut for steam hose end, galvanized steel, GDB, type BOSS

All products, Steam hoses/

Additional information

Material	CS – steel (cast iron)

Adapter for spherical end and wing nut. Made of galvanized steel, it features a special polymer or copper insert on the conical surface that interacts with the spherical sealing surface of the end. It is tightened to the spherical end using a wing nut. This creates a tight connection resistant to steam and high temperature, which is also easy to unscrew and screw without the use of tools. The GDB adapter, double-sided screwed with a wing nut, can connect two hoses with GF ends. Material: galvanized steel. Working pressure: 18 bar (+210°C) – saturated steam. Operating temperature: up to +230°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
DX-GDB-08	Adaptor GDB 1/2"	-	18	In stock	Enquiry
DX-GDB-16	Adaptor GDB 3/4" and 1"	-	18	In stock	Enquiry
DX-GDB-24	Adaptor GDB 1.1/4" and 1.1/2"	-	18	In stock	Enquiry
DX-GDB-32	Adaptor GDB 2	-	18	In stock	Enquiry
DX-GDB-40	Adaptor GDB 2.1/2	-	18	In stock	Enquiry
DX-GDB-48	GDB 3 Adapter	-	18	In stock	Enquiry

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Adapter for spherical end and wing nut. Made of galvanized steel, it features a special polymer or copper insert on the conical surface that interacts with the spherical sealing surface of the end. It is tightened to the spherical end using a wing nut. This creates a tight connection resistant to steam and high temperature, which is also easy to unscrew and screw without the use of tools. The GDB adapter, double-sided screwed with a wing nut, can connect two hoses with GF ends. Material: galvanized steel. Working pressure: 18 bar (+210°C) – saturated steam. Operating temperature: up to +230°C.