Peter Huber Hose Connection Tubing, Metal NW 12 M24x1.5, 150 cm, 350°C Max. Temp.

The Peter Huber 9275 is an ultra-high-temperature insulated metal hose designed for precise and safe thermoregulation in professional laboratory and industrial environments. This 150cm (1.5m) tubing features a nominal width of NW12 and robust M24x1.5 threaded connections, making it a perfect fit for Unistat systems and other mid-to-high capacity circulators. It is engineered to handle extreme temperature ranges from -100°C to 350°C, allowing for seamless operation in both cryogenic and high-heat applications. Constructed from premium-grade stainless steel (1.4404), the hose is equipped with specialized multi-layer thermal insulation and a smooth silicone outer jacket that prevents condensation and protects personnel from extreme surface temperatures.

Key Features:

• Brand: Peter Huber
• Connection Type: NW12 with M24x1.5 threading (Sleeve nut according to DIN 3870)
• Length: 150 cm (1.5 meters)
• Temperature Range: Reliable performance from -100°C to 350°C
• Material: High-grade 1.4404 stainless steel for maximum durability and chemical resistance
• Insulation: Special multi-layer insulation with a smooth, wipe-clean silicone cover and protective end caps
• Pressure Rating: Maximum operating pressure of 16 bar at 20°C (10 bar at 350°C)
• Dimensions: 44 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 a critical accessory for maintaining high-flow characteristics while minimizing power loss in external temperature control circuits. The integrated silicone cover not only enhances insulation but also provides a chemical-resistant, easy-to-clean surface. The standardized M24x1.5 fittings ensure a secure, vibration-resistant connection, providing long-term reliability for demanding pilot plant and laboratory operations.

Frequently Asked Questions

1. What is the difference between the 9275 and the 9277 models?
The primary difference is the length. The 9275 is 150cm (1.5 meters) long, while the 9277 is 300cm (3 meters) long. Both share the same NW12 M24x1.5 connections and 350°C temperature rating.

2. Can I use this hose for vacuum-jacketed reactor connections?
Yes, the robust stainless steel bellows and M24 fittings are ideal for connecting Huber circulators to external closed systems like double-jacketed reactors and autoclaves.

3. Is the silicone cover effective for cryogenic tasks?
Absolutely. The smooth silicone cover acts as a barrier that prevents atmospheric moisture from freezing and forming ice on the hose during low-temperature operations down to -100°C.

4. Does the M24 connection require any special tools?
A standard wrench is typically used to ensure a tight seal. However, you should avoid over-tightening to prevent damage to the M24x1.5 threads or the sleeve nut.

5. What thermal fluids are recommended for a 350°C hose?
For applications near the 350°C limit, high-performance silicone oils like Huber's DW-Therm or SilOil are recommended. Always ensure the fluid's flash point and working range are compatible with your application.