Includes API 607 fire safe WCB Lug style Butterfly valve

All units are FAIL CLOSE as a standard configuration.
Unit of Measure

Valve Size

N/A 2.50 in

End Connection

N/A ANSI Class 150 Lug Style

Valve Model

N/A 402-108

Body Material

N/A Carbon Steel


N/A 316 SS/17-4 SS/RTFE+316 SS
Pressure Rating1 N/A ANSI Class 150

Fusible Link Series

N/A MT Series (Mid Torque)

Operator Type

N/A Gear Operator

Handwheel Size

N/A 14" diameter

Link Yield Temperature

N/A 165 ºF74 ºC

Link Model

N/A FL-1-165

Spring Pack Size

N/A 097-030 (830 in lbs.)

Spring Pack Diameter (A)

N/A 7.9 in

Valve Laying Length (B)

N/A 1.850 in

Body Upper Height (C)

N/A 5.87 in

Bracket Height (D)

N/A 0.5 in

Worm Gearbox Height (E)

N/A 4.45 in

Spring Total Height (F)

N/A 5.13 in

Total Height (G)

N/A 18.95 in

Approvals & Standards

N/A API 609, API 607 fire safe, FM approved topworks

Link Approval

N/A Factory Mutual approved, UL & C-UL listed


N/A Bolt (Proximity Switch):
Position feedback can be added to any fusible link assembly. Please consult factory for details.

Failure Mode:
Fail Close is standard configuration, please consult the factory for Fail Open assemblies.

BI-TORQ Valve Automation recommends that all assemblies using our size 14X spring pack and larger be mounted vertically. If the assemblies need to be mounted horizontally auxiliary supports MUST be used on the spring pack.
  • 1 Fusible link butterfly assemblies are sized for 150 PSI liquid service. Please consult factory for other pressures and services.