User Manual
Bray/McCannalok
Butterfly Valves
Technical Manual - Table of Contents
Topic Page(s)
Seating & Unseating Torques .........................3
Imperial (Lb-Ins) ...............................................4-6
Metric (N-m) ....................................................7-9
Dynamic Torque ................................................10-13
Maximum Shaft Torques (Lb-Ins) ................... 14
Maximum Shaft Torques (N-m) ......................15
Valve Sizing Coefficients ..............................16
Imperial (Cv) ....................................................17-18
Metric (Kv) .......................................................19-20
Pressure & Temperature Rating (ºF & ºC)
With PTFE Seats ...............................................21
With RTFE Seats ............................................... 22
Flange to Valve Bolting Guide ........................ 23
All statements, technical information, and recom-
mendations in this bulletin are for general use only.
Consult Bray representatives or factory for the specic
requirements and material selection for your intended
application. The right to change or modify product
design or product without prior notice is reserved.