Requirement: 10” & 16” Class 900 Butt Weld End, Triple Offset Butterfly Valves, Fail Close at (5) Second Maximum time, Fusible

Linuo HPBV

A Guatemalan power company company needed 10" and 16" critical service, triple offset butterfly valves to operate flawlessly and quickly in the event of fire or loss of air supply.  They chose Linuo high performance butterfly valves for the job.

The Linuo high performance (HP) butterfly valves offer a wide variety options to suit the most challenging applications.  High performance valves offer rugged construction and tight shutoff for applications where a standard butterfly isn’t sufficient.

The triple offset design provides reliable operation through a wider temperature range, higher flow rates, and increased solids content, than a standard butterfly could withstand.

The valves included sophisticated scotch-yoke actuator packages. The customer required a 5 second or less close time, a fusable link for emergency close in the event of fire, a declutchable manual override, and ASME air receiver tanks for "fail mode" that would allow for (2) full operational cycles.

Linuo engineers also included a 3-way fusable link that supplied air to a pilot operated shuttle valve. If the system was exposed to fire, the fusible link will fail, venting the air feed to the pilot causing the shuttle valve to shift and energize the actuator.

The result was a critical service valves that closed in under (3) seconds. Additionally, the high performance butterfly valves were delivered on time and under budget!