Swagelok SS-1RF4RT is a 316 stainless steel integral bonnet needle valve designed for compact and reliable flow control. This straight-pattern valve features a regulating stem and 1/4 inch female ISO tapered thread connections. It provides a maximum flow coefficient (Cv) of 0.73 and is certified for low emissions, making it suitable for a wide range of industrial applications requiring precise regulation.

Technical Specifications

Specification	Detail
Body Material	316 Stainless Steel
Stem Type	Regulating
Stem Tip Material	316 Stainless Steel
Orifice	0.250 in (6.4 mm)
Cv Maximum	0.73
Flow Pattern	Straight (2-way)
Handle Style	Phenolic Knob
Cleaning	Standard Cleaning and Packaging (SC-10)
Low Emissions	Certified

Pressure and Temperature Ratings

Condition	Rating
Room Temperature Pressure	5000 PSIG @ 100°F / 344 BAR @ 37°C
Maximum Temperature Pressure	3130 PSIG @ 600°F / 215 BAR @ 315°C
Temperature Range	-65°F to 600°F (-53°C to 315°C)

Design Features

Integral-bonnet needle valves are compact valves available in a full range of sizes, configurations, and materials. The SS-1RF4RT model specifically utilizes a regulating stem for fine flow control in a straight-way configuration.

System Safety

When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Do not mix or interchange Swagelok products or components with those of other manufacturers.

Identifiers

• eClass (10.1): 37010203
• UNSPSC (15.1): 40141602