Specifications Pressure Rating Temperature Range Actuation Pressure Bore Size Flow Coefficient Seal Material End Connections

Up to 250 psig (17.2 bar) 20 to 300°F (–6 to 148°C) 40 to 150 psig (2.8 to 10.3 bar) 0.125 in. (3.2 mm) 0.20 Fluorocarbon FKM, Simriz®, Kalrez® 1/8 in. female NPT, Swagelok MPC (ANSI/ISA 76.00.02-compatible)

Features 

• Modular design offers ease of installation and maintenance. 
• Built-in pneumatic actuator provides repetitive shutoff with fewer potential leak points than conventional systems. 
• Distinctive vented air gap prevents mixing of pneumatic actuator supply and system fluid under pressure. 
• Compact design saves cabinet space and reduces internal volume. 
• Stainless steel construction provides enhanced corrosion resistance. 
• Optional integrated atmospheric reference vent (ARV) is available.

DBB Module

• One-piece, integrated DBB module allows for easy removal without the need to disconnect process lines. 
• Normally closed, double block-and-bleed design consists of: 
• Double-block valves that control system fluid and eliminate cross-contamination of sample streams 
• Bleed valve that is tied to a common vent for all DBB modules
• Visual indicator provides easy visual and tactile indication of open position with large, raised green ring. 
• Interchangeable colored caps provide stream identification. (Standard color is blue.)

Base Blocks 

• Types of base blocks include standard, outlet, end (left and right), and ARV (optional). 
• Blocks are attached together with a patent-pending insert and screw system to create a fluid path. 
• Blocks contain all the fluid connections in one location.

 

Options
Atmospheric Reference Vent
The integrated atmospheric reference vent (ARV) is positioned prior to the analyzer and attached to the outlet of the stream selector system. It is designed to equalize the sample loop pressure to atmospheric pressure just prior to the sample injection. This ensures a constant sample pressure in repetitive analyses.

MPC-Compatible Interface Option 
The Swagelok SSV system is offered with an optional MPC-compatible interface for up to ten streams. See the Swagelok Modular Platform Components catalog.

Vented Air Gap Threaded Test Port
An optional 1/8 in. female NPT threaded test port is available for the vented air gap.

Testing 
Every Swagelok SSV system is factory tested at room temperature with nitrogen at 250 psig (17.2 bar). Each double block-and-bleed seat has a maximum allowable leak rate of 0.1 std cm³/min. Shell testing is performed to a requirement of no detectable leakage with a liquid leak detector.

Cleaning and Packaging
All Swagelok SSV systems are cleaned and packaged in accordance with Swagelok Standard Cleaning and Packaging (SC-10).

Replacement Part Kits
Kits are available for stream assemblies, modules, base blocks, flanges, O-rings, caps, and screws.