Setting relief pressure the first time without cooking the oil
Relief valve first, compensator second, and why that order stops a system hunting.
Machined at Ironvale since 1994
We hone our own barrels and machine our own manifolds at Ironvale, so a rebuild question years later still reaches the people who cut the steel. Tell us the duty cycle and the space you have to fit inside, and an engineer answers with a specification.
We ask for pressures, flows and cycle times before anyone picks a frame size.
Test pressure goes on, an inspector watches the needle, and the reading is written down.
We diagnose by phone and photo first, then send an exchange unit where stock allows.
Seal kits and wear parts stay catalogued against the serial number we shipped.
Inside the hall
Barrels are honed, caps and manifolds machined, and units built up in the same building, with gauge checks between operations. Nothing waits in a subcontractor queue, and nothing can be blamed on one either.
How we testOrder book
The frames that come up on most quotes before anything is drawn from scratch.
Forged shell, nitrogen-charged elastomer bladder, exchangeable through the fluid port with the shell in…
View & InquireGlass-fibre element inside a cast head; the bowl threads off with a strap wrench…
View & InquireShips as a function-tested assembly on an anodised manifold, every station labelled against your…
View & InquireSwash-plate pump with a lockable compensator, broken in on the test stand before it…
View & InquireMotor, gear pump and manifold sit on one baffled steel tank; we wet-test it…
View & InquireFour high-tensile rods clamp a honed barrel between machined caps, so a seal change…
View & InquireOrder route
The same engineer follows the job from the first email to the crate.
Pressure, flow, cycle time and the space you have to fit into.
Frame sizes, seal compounds and options get picked, then quoted with the specification attached.
Machined and assembled here, function-cycled, then pressure-held against the written protocol.
Commissioning help on site, and seal kits on the shelf for the years afterwards.
Follow-up calls
The cylinders arrived with test records in the crate. Our auditor asked one question, we handed over one folder, done.
A pump went down on a Friday shift. The exchange unit was on a pallet the same day and the machine ran Monday morning.
Their seal kits come labelled in assembly order with torque values on the liner. Our workshop rebuilds cylinders without a specialist now.
Test bay
A new design earns its rating through proof-pressure and impulse cycling. After that every single unit holds its test pressure while an inspector watches the needle, and the signed record follows the serial number for as long as the unit works.
Request a quoteSend those and the space you have to fit into, and an engineer replies with a specification and a price within one business day.

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