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Safety Excess Flow Valves and Velocity Fuses
When a pipe breaks, the valve shuts down the flow of gases or liquids.
Our Valve Will Make Your Plant Safer and May Make You Eligible for Insurance Discounts.
Adjustable Velocity Fuse
Safety Excess Flow Valves are adjustable. Sizes range from capillary size for laboratory analyzers to process piping sizes for bulk tank loading. Smaller size excess flow safety valves are sometimes called velocity fuses. They can be ordered with a manual reset option. Materials include: bronze, carbon steel, cast iron, forged steel, and 316 stainless steel.
compressed air lines which can cause hose whip
loadout racks in refineries and chemical plants
hazardous gases which may be toxic to humans,
non-hazardous gases like nitrogen and CO2 which may displace breathing air
gas analyzers which may have hydrogen as a carrier gas,
sampling station operator protection,
catastrophic failure protection,
fuel lines to boilers, burners, heaters and other gas appliances
reduce potential for explosions at methane extraction facilities.
A locking cap can help prevent tampering with excess flow valve setpoint adjustment. Switches are designed to be field maintainable and settable to prevent nuisance trips common in competitive products. Velocity fuses and excess flow valves can be adjusted in the field to meet individual customer requirements. Meets OSHA requirement for safety shutoff valves.
threaded or flanged
carbon steel, stainless steel, alloy and other materials
automatic reset hole to reset switch for applications where an event is common