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 a nut for fittings for hose for steam water, steel galvanized, GDB, type BOSS

All products, Steam hoses/

Additional information

Material	CS – steel (cast iron)

An adapter for a ball end and a wing nut. W made of steel zinc-plated, has special an insert polymer or copper na surface tapered cooperating with ball surface sealing fittings. It is tightened to the ball end by means of a wing nut. This creates a tight connection resistant to steam and high temperature, which is at the same time easy to unscrew and screw on without using tools. Adapter GDB on both sides screwed with a nut wing can connect two hoses with fitting GF. Material: steel galvanized. pressure working: 18 bar (+210°C) – steam saturated. temperature use: up to +230°C.

List of product variants

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

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An adapter for a ball end and a wing nut. W made of steel zinc-plated, has special an insert polymer or copper na surface tapered cooperating with ball surface sealing fittings. It is tightened to the ball end by means of a wing nut. This creates a tight connection resistant to steam and high temperature, which is at the same time easy to unscrew and screw on without using tools. Adapter GDB on both sides screwed with a nut wing can connect two hoses with fitting GF. Material: steel galvanized. pressure working: 18 bar (+210°C) – steam saturated. temperature use: up to +230°C.