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HN49U Series Union Bonnet Needle Valve
Brand: Hex ValveThe HN49U is a severe service union-bonnet needle valve that features a one-piece forged body and grafoil packing, all designed to handle the extreme conditions of high pressure and high temperature services such as those in super-heated steam power plant services.
With a multitude of configurations available, you will find a model to meet your varying needs.
The HN49U is produced in 6 mm and 10 mm orifice sizes, and can be provided with tube socket weld or 4.5 mm butt-weld end connections.
To withstand the extreme temperatures this valve is designed for, the HN49U can be specified in either 316H or F91 materials.
Features- Construction: One-piece forged body design. Accidental valve disassembly prevented by union body construction. Packing able to be adjusted in the open position.
- Packing Materials: Grafoil packing standard to handle temperatures up to 1200°F (648,9°C).
- Ratings: 10,000 psig @ 100°F (689,5 bar @ 37,8°C); 3,500 psig @ 1200°F (241,3 bar @ 648,9°C)
- Backseated Bonnets with Packing Below the Stem Threads:
- Standard Option: Panel mounting standard on all HN49U valves.
- Stem Design: Non-Rotating Ball Tip Stem provides for repeatable, leak-tight shutoff. Because the ball stops rotating when it contacts the seat, further torque turns the stem, but not the ball tip, protecting the stem tip from damage.
1 - 8 of 8 Part Numbers
HN49UA8I1
- Orifice Size - 0.24" (6 mm)
- Body Material - 316H Stainless Steel
- Inlet / Outlet Type - 0.17" (4.5 mm) Wall BWE
HN49UA8IE
- Orifice Size - 0.24" (6 mm)
- Body Material - 316H Stainless Steel
- Inlet / Outlet Type - TSW
HN49UAFI1
- Orifice Size - 0.24" (6 mm)
- Body Material - F91 Steel
- Inlet / Outlet Type - 0.17" (4.5 mm) Wall BWE
HN49UAFIE
- Orifice Size - 0.24" (6 mm)
- Body Material - F91 Steel
- Inlet / Outlet Type - TSW
HN49UB8I1
- Orifice Size - 0.39" (10 mm)
- Body Material - 316H Stainless Steel
- Inlet / Outlet Type - 0.17" (4.5 mm) Wall BWE
HN49UB8IE
- Orifice Size - 0.39" (10 mm)
- Body Material - 316H Stainless Steel
- Inlet / Outlet Type - TSW
HN49UBFI1
- Orifice Size - 0.39" (10 mm)
- Body Material - F91 Steel
- Inlet / Outlet Type - 0.17" (4.5 mm) Wall BWE
HN49UBFIE
- Orifice Size - 0.39" (10 mm)
- Body Material - F91 Steel
- Inlet / Outlet Type - TSW
1 - 8 of 8 Part Numbers
Specifications
Brand
Enclosure, Body Material
- 316H Stainless Steel
- Steel (F91)
Orifice Size
- 0.236”
- 0.394” (10 mm)
Packing Material
- Grafoil [0° to 648.9° C (32° to 648.9° F)]
Pressure Rating
- psig: 10,000 (kPa: 68,950, bar: 689.5) at 37.8° C (100° F)
- psig: 3,500 (kPa: 24,132, bar: 241.3) at 648.9° C (1,200° F)
Welded Inlet
- 3/4” Tube Socket Weld End
Welded Outlet
- 3/4” Tube Socket Weld End