Is the Brass GF BOSS Steam Hose End with GW NPT rated for continuous use at 18 bar and temperatures up to +210°C saturated steam?

Yes. The Brass GF BOSS Steam Hose End with GW NPT is rated for continuous use at working pressure up to 18 bar with +210°C saturated steam. The product description specifies it withstands operating temperatures up to +230°C and is engineered (brass construction, conical polymer/copper insert and spherical seal) to provide a steam-resistant seal suitable for demanding industrial conditions.

Can the Brass GF BOSS Steam Hose End with GW NPT be used with alternative clamp types besides BOSS SBC for high-pressure steam applications?

The Brass GF BOSS Steam Hose End with GW NPT Format is specifically designed to work with BOSS SBC type steam clamps: its ribbed tail with lock and the clamp geometry ensure a firm, stable hose hold under high-pressure steam. For high-pressure, high-temperature steam service (up to 18 bar and +210–230°C), using the specified BOSS SBC clamp is the validated, safe option. Using alternative clamp types is not recommended unless the alternative exactly matches the BOSS SBC in clamping force, contact area, locking engagement and resistance to creep at steam temperatures. Non‑matched clamps can allow hose slippage, compromise the ribbed tail lock, damage the hose, or degrade the steam‑resistant seal formed by the GFB adapter’s conical insert and spherical end — all creating a risk of leakage or failure under pressure. If you must consider another clamp, verify with the manufacturer or an engineer that the clamp: - Provides equivalent or greater axial retention and circumferential compression, - Is rated for the same temperatures and steam environment, - Physically engages the ribbed tail lock reliably, - Maintains clamp tension over time (resists relaxation/creep). For safety and warranty preservation, stick with BOSS SBC clamps or obtain explicit manufacturer approval before using alternatives.

Brass GF BOSS Steam Hose End with GW NPT

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Additional information

Material	B – brass (bronze)

Designed for maximum safety and efficiency, the NPT internal threaded ends for rubber steam hoses provide a secure and durable connection ideal for demanding industrial environments. The system features a ribbed tail with lock for firm hose installation using BOSS SBC type steam clamps, ensuring stability even under high pressure. The complete assembly consists of three precision-engineered components: the spherical GB end with hose spout, the B wing nut with special NPS internal thread, and the GFB adapter with matching NPS external thread and identical internal thread size. The GFB adapter is equipped with a conical polymer or copper insert that works seamlessly with the spherical end, creating a tight, steam-resistant seal capable of withstanding extreme temperatures and pressures. Thanks to the ergonomic wing nut, the connection can be easily tightened or released without specialized tools, offering both convenience and reliability. Manufactured from high-quality brass, the fitting guarantees long-lasting performance under working pressure up to 18 bar at +210°C saturated steam, withstanding operating temperatures up to +230°C, making it the perfect choice for industries where safety, durability, and ease of use are essential.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
DX-GF-12-12-B-NPT	GF end with GW NPT 3/4", hose 3/4", brass	20	18	In stock	0 €		Enquiry
DX-GF-16-16-B-NPT	GF end with GW NPT 1", hose 1", brass	25	18	In stock	0 €		Enquiry

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Designed for maximum safety and efficiency, the NPT internal threaded ends for rubber steam hoses provide a secure and durable connection ideal for demanding industrial environments. The system features a ribbed tail with lock for firm hose installation using BOSS SBC type steam clamps, ensuring stability even under high pressure. The complete assembly consists of three precision-engineered components: the spherical GB end with hose spout, the B wing nut with special NPS internal thread, and the GFB adapter with matching NPS external thread and identical internal thread size. The GFB adapter is equipped with a conical polymer or copper insert that works seamlessly with the spherical end, creating a tight, steam-resistant seal capable of withstanding extreme temperatures and pressures. Thanks to the ergonomic wing nut, the connection can be easily tightened or released without specialized tools, offering both convenience and reliability. Manufactured from high-quality brass, the fitting guarantees long-lasting performance under working pressure up to 18 bar at +210°C saturated steam, withstanding operating temperatures up to +230°C, making it the perfect choice for industries where safety, durability, and ease of use are essential.