Swagelok SS-3NRS4-G is a stainless steel severe service union bonnet needle valve. It features a 0.35 Cv, 1/4 in. Swagelok® tube fitting, regulating stem, and Grafoil packing. 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).

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.

Straight Pattern, Regulating Stem

Specifications
Body Material	316 Stainless Steel
Cleaning Process	Standard Cleaning and Packaging (SC-10)
Connection 1 Size	1/4 in.
Connection 1 Type	Swagelok® Tube Fitting
Connection 2 Size	1/4 in.
Connection 2 Type	Swagelok® Tube Fitting
CV Maximum	0.35
Flow Pattern	Straight (2-way)
Handle Style	Aluminum Bar
Maximum Temperature, °F (°C)	1200 (648)
Max Temperature Pressure Rating	1200°F @ 1715 PSIG / 648°C @ 118 BAR
Minimum Temperature, °F (°C)	-65 (-53)
Orifice	0.156 in
Packing Material	Grafoil Stem packing
Room Temperature Pressure Rating	6000 PSIG @ 100°F / 413 BAR @ 37°C
Stem Tip Material	316 Stainless Steel
Stem Type	Regulating