Swagelok® Excess Flow Valves and Flow Sensors  

Specifications Working Pressure Temperature Range Body Material O-Ring Material End Connections •  Types •  Sizes

Up to 6000 psig (413 bar) –10 to 400°F (–23 to 204°C) 316 stainless steel Fluorocarbon FKM Swagelok tube fitting, NPT, ISO, SAE/MS, VCR® metal gasket face seal, and VCO® O-ring face seal fittings 1/4, 3/8, 1/2 in. and 6, 8, 10, 12 mm

Download the Industrial Excess Flow Valves—XS Series catalog.
Find XS series excess flow valves flow devices in the product search.

Features

• Slotted poppet 
• improves performance and reliability 
• provides high-flow capacity 
• eliminates nuisance tripping.
• Spring-loaded actuation 
• eases operation 
• allows valve to work in any orientation, enhancing system safety.
• Bleed vent 
• eliminates complex bypass mechanisms 
• allows spring to reset poppet automatically.
• All metal seat 
• improves durability 
• requires no maintenance.

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-11), 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); special cleaning and packaging are available as an option.

Options

• Optional O-ring material
• PEEK backup ring
• Special cleaning and packaging.

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Specifications Working Pressure Temperature Range Body Material End Connections •  Types •  Sizes

Up to 5000 psig (344 bar) –40 to 175°F (–40 to 79°C) 316L stainless steel Swagelok tube fittings, VCR metal gasket face seal fittings, tube extensions 1/4 in. and 6 mm

More Information
Download the Vertical Flow Sensors—FV4 Series catalog.
Contact your authorized Swagelok sales and service representative.

Features

• Models can be selected to sense either increasing flow or decreasing flow. 
• Snap-action float provides positive actuation. 
• All-welded construction ensures fluid containment. 
• High-strength, permanent magnet and 316L SS materials enhance durability. 
• Replaceable switch assembly outside flow path eases maintenance.

Testing
Every FV4 series flow sensor is tested for proper operation and is helium leak tested at the envelope to a maximum leak rate of 4 × 10^–9 std cm³/s.

Cleaning and Packaging 
All FV4 series flow sensors are are processed in accordance with Swagelok Special Cleaning and Packaging (SC-11) to ensure compliance with product cleanliness requirements stated in ASTM G93 Level C.

Accessories
Replacement reed switch kit includes switch assembly, retaining ring, assembly tool, and instructions.

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