Samson makes globe control valves, self-operated regulators and pneumatic actuators, with a strong presence in chemical, pharmaceutical and utility service. The 3241 and 3244 globe families and the 3271 and 3278 regulator families are the patterns most often seen in North American plants, usually paired with Samson diaphragm actuators and 3730 series positioners.
Samson equipment is usually well marked and well documented, which makes it straightforward to review. The most common surplus is a globe body with its actuator still fitted after a control loop was upgraded to a different brand or a different size.
Brand disclosure. Samson is a trademark of its respective owner. Louisiana Valve Buyer is an independent purchaser of surplus equipment and is not affiliated with, authorised by, sponsored by or endorsed by Samson or its owner. These pages describe equipment we are willing to buy; they do not represent manufacturer service, repair authorisation, calibration, pressure certification, product compatibility, or a statement that any used item is ready for future process service.
Seller guides
Samson equipment, in detail
What we look at
Reviewing Samson equipment
Trim and characteristic
Equal percentage and linear trims are both common. Note which one, and whether the plug is balanced or unbalanced.
Actuator and bench set
The diaphragm actuator and its spring range determine what the valve can do. Photograph the actuator plate.
Body material
Cast steel, stainless and alloy bodies all appear. Material marking on the body is the first thing to capture.
A detailed, accurate list is more useful than a generic brand mention. If you can tell us the model, the size, the class and what is attached, the review is straightforward. If you cannot, photographs of the nameplates will get us most of the way.
What to preserve
Before anything is disconnected
Keep the assembly together, keep the tag on the valve, and photograph the nameplates before anything is separated. Most of the value lost on branded equipment is lost in the ten minutes after removal, not in the years before it.
Questions sellers ask
Do you buy used Samson equipment?
Yes. We buy Samson equipment as surplus, in single lots or as part of a whole crib. We buy it as equipment, not as scrap, and we make no claim about its fitness for future service.
Is Samson surplus worth more than unbranded equipment?
Often yes, because the brand tells a buyer what the specification is and where parts come from. The premium depends on the model, the condition and the documentation.
What if the nameplate is missing?
Send photographs of the body and any cast markings. Brand and model can often be established from the shape and the marking, though the price reflects the uncertainty.