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Sample Stream Select Valves

Stream Selector System

Stream-Select Valves

  • Reduce tubing connections and speed up installation in process analyzer sampling systems
  • Utilize a compact, space-saving design
  • Manage multiple process streams
  • Prevent cross-contamination
  • Provide repetitive shutoff with fewer potential leak points

Stream Selector System for Process Analyzer Applications (SSV Series)


The stream selector system (SSV series) is a modular assembly designed for process analyzer sampling systems that provides double-block-and-bleed (DBB) operation in a single compact module.

Watch how our SSV Series can help deliver representative samples.


Pressure Rating Up to 250 psig (17.2 bar)
Temperature Range 20 to 300°F (–6 to 148°C)
Actuation Pressure 40 to 150 psig (2.8 to 10.3 bar)
Bore Size 0.125 in. (3.2 mm)
Flow Coefficient 0.2
Seal Materials Fluorocarbon FKM, Simriz®, Kalrez®
End Connections 1/8 in. female NPT, Swagelok® MPC (ANSI/ISA 76.00.02-compatible)
Number of Process Streams 2 to 12, each controlled by a DBB module

Stream-Select, Switching, and Shutoff Valve Assemblies (TT2 Series and T2 Series)

Stream-select, switching, and shutoff valve assemblies are modular systems that provide multiple valve operations in a single, compact unit, requiring fewer tubing connections than conventional systems and saving cabinet space and installation time.


Pressure Rating Up to 300 psig (20.6 bar)
Temperature Range 0 to 300°F (–17 to 148°C)
Actuation Pressure 50 to 150 psig (3.5 to 10.3 bar)
Orifice 0.052 to 0.110 in. (1.32 to 2.8 mm)
End Connections
Type Swagelok tube fitting, female NPT
Size 1/16, 1/8, 1/4 in.; 3 mm

View and purchase our most widely used products.

Discover more about how Swagelok products can work for you. Browse our catalogs or locate a sales and service center.

Safe Product Selection: The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. 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.

⚠ 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.