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Design your own

Do you
"Repair by
replacement"?

Email Individuals
at QTRCO

Map to QTRCO

13120 Theis Lane
Tomball, Texas 77375
Ph 1-281-516-0277
FAX 1-281-516-0288

(Fax # not to be used
for solicitations except
with QTRCO approval)

Consider ... If you were to design your own actuator ...

If you did, would you include some or all of the following features ...

• Increase longevity by reducing side loading on the piston
• Increase longevity by reducing internal sliding friction
• Eliminate contact between the shaft and the body by incorporating thick wall shaft bushings
• Reduce friction on the shaft by pressure balancing the shaft to eliminate pistoning effect
• Make every effort to reduce or eliminate side loading on the shaft - especially if there might be little or no shaft bushing to prevent contact between the shaft and the body
• Eliminate 'jump' when opening high seating torque valves
• Make maintenance simple and safe
• Employ full diameter springs to reduce friction inducing spring buckling and to reduce the spring stresses for more spring cycles
• Make it flexible so that you might reverse the action from fail closed to fail open with no mechanical changes to the actuators
• Allow air to flow without restriction in order that you might achieve faster stroke speeds
• Allow NAMUR solenoid valve mounting
• Incorporate full NAMUR accessory mounting capabilities - on both top and bottom sides
• Apply pressure to the piston, but not the shaft seals on the spring return version
• Make the design flexible so that it may be modified to allow for low pressure applications
• Make the design impervious to water in the air line. In fact, make it capable of being driven by water, oil and gases other than air.
• Enable flexibility to Replicate the mounting dimensions of installed actuators in order to not have to buy new brackets and couplings
• Once designed, use brackets that do not mandate thin fingered staff to install the mounting bolts.
• Make it capable of continuously withstanding temperatures up to 400F and intermittent to 450F
• Make it impervious to corrosive atmospheres

Armed with your check list, compare it to the actuators you are presently using. Do they stand up to a comparison?

As you might expect, the QTRPAQ incorporates all, the XYTRQ most, and the Q-TRQ many of the above features.