Peter Huber Hose Connection Tubing, Metal NW 12 M24x1.5, 300 cm, 350°C Max. Temp.

The Peter Huber 9277 is a high-performance insulated metal hose designed for extreme temperature applications in laboratory and pilot plant settings. Featuring a nominal width of NW12 and M24x1.5 threaded connections, this flexible tubing provides a secure and leak-free link for high-precision thermoregulation. It is engineered to withstand a wide temperature range from -100°C to 350°C, making it an ideal choice for use with high-temperature Unistats and other advanced circulators. At 300cm in length, it offers significant flexibility for connecting to external reactors or autoclaves. The hose is constructed from durable stainless steel and is protected by multi-layer insulation with a smooth silicone outer cover and protective end caps to ensure maximum heat retention and user safety.

Key Features:

• Brand: Peter Huber
• Connection Type: NW12 with M24x1.5 threading (Sleeve nut according to DIN 3870)
• Length: 300 cm (3 meters)
• Temperature Range: Exceptional versatility from -100°C to 350°C
• Material: High-grade stainless steel (1.4404) for superior chemical and thermal resistance
• Insulation: Special multi-layer insulation with a smooth silicone jacket and protective end caps
• Pressure Rating: Maximum operating pressure of 16 bar at 20°C (10 bar at 350°C)
• Dimensions: 33 mm outside diameter with a minimum bending radius of 120 mm
• Safety: Flame-resistant construction with a UL94-HB fire rating

This Huber metal hose is specifically designed to minimize heat loss and protect personnel from the extreme surface temperatures encountered during high-heat operations. The M24x1.5 fittings are a standard size for many mid-to-large Huber temperature control units, ensuring a robust and vibration-resistant connection. Its smooth silicone cover makes it easy to clean and resistant to chemical splashes, ensuring long-term reliability in demanding research environments.

Frequently Asked Questions

1. Why is M24x1.5 a common connection for 350°C applications?
M24x1.5 is a robust metric thread that provides a large enough opening for sufficient flow rates while maintaining a very high pressure-bearing capacity, which is essential for high-temperature silicone oils.

2. Can I use this hose for ultra-low temperature cooling?
Yes, the 9277 is rated down to -100°C. The specialized insulation and silicone cover effectively prevent ice formation and condensation on the exterior of the hose during cryogenic tasks.

3. Is the silicone cover removable?
The silicone jacket is integrated into the insulation system to provide a smooth, safe outer surface. It should not be removed as it helps maintain the thermal integrity of the hose and protects the user.

4. How should I handle the hose to ensure a long service life?
Avoid bending the hose tighter than its 120 mm minimum bending radius. Sharp kinks can damage the internal metal bellows, especially when the hose is under high thermal stress at 350°C.

5. Are the M24 connections compatible with Unistat units?
Many Unistat models use M24x1.5 or M30x1.5 connections. If your unit uses M30, Huber offers standard M24-to-M30 adapters to allow the use of this NW12 hose.