

Swagelok SS-12NBS8 stainless steel severe service union bonnet needle valve. Features 1/2 in. tube fittings, 2.1 Cv, ball stem, and straight flow pattern.

Swagelok SS-12NBS8 is a stainless steel severe service union bonnet needle valve designed with 1/2 in. Swagelok tube fitting end connections and a ball stem. It features a straight flow pattern and delivers a maximum Cv of 2.2 for reliable fluid control in demanding environments.
Needle valves with union-bonnet construction are available in a variety of materials, with working pressures up to 10000 psig (689 bar) and temperatures up to 1200°F (648°C).

| Specification | Value |
|---|---|
| Body Material | 316 Stainless Steel |
| Cleaning Process | Standard Cleaning and Packaging (SC-10) |
| Connection 1 Size | 1/2 in. |
| Connection 1 Type | Swagelok® Tube Fitting |
| Connection 2 Size | 1/2 in. |
| Connection 2 Type | Swagelok® Tube Fiting |
| CV Maximum | 2.2 |
| Flow Pattern | Straight (2-way) |
| Handle Style | Aluminum Bar |
| Maximum Temperature, F (°C) | 450 (232) |
| Max Temperature Pressure Rating | 450°F @ 4130 PSIG / 232°C @ 284 BAR |
| Minimum Temperature, F (°C) | -65 (-53) |
| Orifice | 0.437 in |
| Room Temperature Pressure Rating | 6000 PSIG @ 100°F / 413 BAR @ 37℃ |
| Stem Tip Material | Cobalt Based Alloy |
| Stem Type | Ball stem |
WARNING
Do not mix/interchange Swagelok products or components not governed by industrial design standards, including Swagelok tube fitting end connections, with those of other manufacturers.
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