Cashco
Control valves, regulators, controllers, and pressure/vacuum relief vents.
Cashco builds regulators for the services where a general-purpose regulator quietly fails: dirty, corrosive, low-pressure and vacuum duty. The line is organised by what the regulator has to do, not by model number, because the same DA body shows up in both reducing and back-pressure service and the model alone won't tell you which you need.
What we carry, by measurement
Pick what you’re measuring.
Holding a steady downstream pressure. The bulk of the line, and where the sliding-gate design earns its keep on dirty and low-pressure service.
Choosing between them
A starting point, not a substitute for sizing. Send us the process conditions and we’ll do the calculation.
Model D / DL
The general-service reducing regulators, spring-loaded and direct-acting.
Use it whenMost everyday reducing duty on utility and process service, in the smaller line sizes.
DA1
Reducing regulator in carbon and stainless bodies, up to larger line sizes.
Use it whenThe same duty as a Model D but you need 2–3 inch and a steel body.
1000HP / 8310HP
High-pressure reducing regulators, including graphite-gasket construction.
Use it whenInlet pressure is high enough that a standard-service regulator is out of its range.
4381
Small-line precision reducing regulator.
Use it whenQuarter-inch and half-inch service where you need a stable low outlet pressure at low flow: instrument supply, sampling systems.
Holding a steady UPSTREAM pressure, or relieving it. Different job from reducing, and the confusion between the two is the most common selection error on this line.
Choosing between them
A starting point, not a substitute for sizing. Send us the process conditions and we’ll do the calculation.
Model 123
Back-pressure regulator with a choice of gasket materials for the media.
Use it whenYou need the pressure held on the UPSTREAM side: protecting a pump, keeping a header stable, or maintaining pressure on a vessel as it drains.
DA4 / DA5 / DA6
Back-pressure regulators in cast and LCC steel bodies, into the larger line sizes.
Use it whenThe same duty at 3–4 inch, or where the body material has to handle low temperature.
Keeping an inert blanket over a stored product so it doesn't oxidise, absorb moisture or form a flammable vapour space. Cashco's Vacu-Guard is the best-known name in it.
Choosing between them
A starting point, not a substitute for sizing. Send us the process conditions and we’ll do the calculation.
1078 Vacu-Guard
Pilot-operated tank blanketing valve, horizontal or vertical outlet.
Use it whenA larger tank, or a blanket pressure that has to be held tightly. The pilot gives you far better control near set point than a spring alone.
1088 Vacu-Guard
Spring-operated tank blanketing valve.
Use it whenStraightforward blanketing on a smaller tank where pilot control isn't worth the complexity.
Where a regulator can't do the job: you need a signal, a positioner and a characterised trim rather than a spring and a diaphragm.
2296
Linear globe-style control valve, including a high-flow body.
Use it whenThe loop needs to be controlled from a signal, not self-regulated. If you're asking whether you need this or a regulator, that's the conversation to have before you buy either.
Loading and unloading systems built around a regulator, supplied as an assembly rather than a part.
P1 / P7
Pressure loading systems, pilot and non-pilot, including relieving-to-atmosphere and non-oxygen-service configurations.
Use it whenYou need a loading system rather than a single regulator, and if it's oxygen service, say so up front, because the build is different.
Cross-references & replacements
Cashco and Valve Concepts are the same family and we represent both: Cashco for regulators and blanketing, Valve Concepts for conservation vents, emergency vents and flame arrestors. Some blanketing parts carry a Cashco VCI designation for that reason. If you're specifying a tank's whole vapour-control package, ask us to quote it as one job rather than two.
Send a part number or a print