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UniPro™ Valve Closure Systems for both High Torque, Low Torque, and Soft Seat
Valves
Tank Car Fleets are Changing
Tank car valves designed to load and discharge hazardous chemicals are changing
from the traditional high torque valves (the most common being the ACF valve) to
the new generation of valves by manufacturers such as Beltech, Descote, Eagle, Midland,
and Rego. This new generation of valves offers several advantages to the old ACF
style valves; they are easier to operate, do not cause operator injuries, and require
less maintenance. As the tank car industry continues to transition to the new valves,
it will not be uncommon for a variety of valve designs to appear within a tank car
fleet. Unlike other valve closure manufacturers, Powell Valve Closure Systems do
not require air pressure adjustments dependent on the torque requirements of the
valve.
Powell is the only manufacturer to offer valve closure systems to safely, easily,
and efficiently operate a tank car fleet of high torque, low torque, and soft seat
valves with minimum effort.
UniPro™ Standard Valve Closure System
The UniPro™ Standard pneumatic actuator can be used on valves requiring up
to 125 lb-ft of torque or as little as 30 lb-ft of torque to seat and seal them,
and with a number of different hand wheel configurations. This versatility is made
possible by the numerous valve adapters available. These valve adapters can accommodate
valve hand wheels having the standard Chlorine Institute hand wheel or hand wheels
with two, four, five, six or eight spokes. Each is available with or without a torque
limiting feature that allows only 30 lb-ft of torque to be applied to the hand wheel.
The UniPro Standard pneumatic actuator requires 90 psi air or nitrogen pressure
regardless of which valve adapter is used.
UniPro™ LT Valve Closure System
The UniPro™ LT produces adequate torque to seat and seal the low torque valves
without damaging the valve seats. Literally the "Little Brother" of the
UniPro™ Standard actuator, the UniPro™ LT uses the same operating system
without adjustments. It attaches to the tank dome in the same way and contains all
of the same