Fisher regulators cover a wide territory: domestic and commercial gas pressure regulation, industrial steam reducing, pilot-operated pressure control, and tank blanketing where a vessel needs a controlled inert pad. Many of them are installed in utility and distribution service rather than process service, which means they are often replaced during system upgrades rather than during turnarounds.
Because regulators are set for a specific outlet pressure and a specific fluid, a surplus regulator is only useful to a buyer who can re-spring or re-trim it. That is entirely normal, but it means the spring range, the orifice size and the body material need to be legible.
Brand disclosure. Fisher 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 Fisher or its owner. We do not provide manufacturer service, repair authorisation, calibration, pressure certification or product compatibility statements.
Inspection points
What decides the price
Spring range
The spring colour or part number tells a buyer what the regulator can be set to. Without it the valve is a body and a diaphragm case.
Orifice size
Orifice diameter determines capacity. It is usually marked on the body or the cage.
Service history
Gas, steam, air or liquid. A regulator that ran on dirty steam is a different proposition from one on clean fuel gas.
What to send
Making the review quick
A wide photograph of the whole unit, a close photograph of the valve nameplate, and the model number if you have it. If there are several identical units, one set of photographs and a quantity is enough.
If the equipment is already separated, keep the parts together and label them as a set. A matched pair is worth more than two orphans.
Questions sellers ask
Do you buy used gas regulators?
Yes, particularly in quantity from utility and distribution stores.
What if the set pressure is not marked?
Send photographs of the spring and the body markings and we will work it out from the pattern.