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Industrial Excess Flow Valves

3

Materials of Construction 12

5

6

7

3

4

1 Inlet body

316 SS/A479

2 Identification ring

Polyetherimide

3 Poppet

316 SS/A479

4 Spring

302 SS/A313

5 O-ring

Fluorocarbon FKM

6 Backup ring

PTFE/D1710

7 Outlet body

316 SS/A479

Lubricant

PTFE-based

Component

Material Grade/ ASTM Specification

Wetted components listed in italics.

  • PEEK also available; see Ordering Information, page 4.

Testing

Every XS series valve is factory tested for proper operation.

Cleaning and Packaging

Swagelok XS series valves with VCR or VCO end connections are processed in accordance with Swagelok Special Cleaning and Packaging (SC-1 ), MS-06-63, to ensure compliance with product cleanliness requirements stated in ASTM G93 Level C.

Swagelok XS series valves with other end connections are processed in accordance with Swagelok Standard Cleaning and Packaging (SC-10), MS-06-62; special cleaning and packaging are available as an option.

Flow Data at 70°F (20°C)

Springs with lower trip ranges are available. See the Swagelok XS Series Excess Flow Valve technical report, MS-06-11.

XS4 Series Air

XS6 Series Air

Air Flow, std L/min

Air Flow, std L/min

Inlet Pressure, psig

Open

Trip Range

Tripped

Inlet Pressure, bar

Inlet Pressure, psig

Open

Trip Range

Tripped

Inlet Pressure, bar

Air Flow, std ft3/min

Air Flow, std ft3/min

XS8 Series Air

Inlet Pressure, psig

Air Flow, std L/min

Open

Trip Range

Tripped

Inlet Pressure, bar

XS6

1.1

8.2 to 10.0 (31.0 to 37.8)

XS8

11.2 to 14.9 (42.3 to 56.3)

XS4, XS6, XS8 Series Water

Trip Range

  • U.

    S. gal/min (L/min)

    • 3.9

      to 5.8 (14.7 to 21.9)

Series

Cv

XS4

0.5

Air Flow, std ft3/min

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