Overview
Water pressure gauge, 2.5 inch dial, 0–1500 psi, supplied with the PGUC-250 mount. Sapphire part number 26-045, also catalogued as Legend Brands 117185. It replaces SS-26-005 and SS-26-041.
It is an alternate for HydraMaster 074-007.
Match the range to the machine
Pressure gauges are not interchangeable across ranges, and getting it wrong costs you either the gauge or the ability to diagnose anything:
- Fit a lower-range gauge to a machine that runs beyond it and you will over-pressure it the first time the machine runs up. It will not read again.
- Fit an over-range gauge to a low-pressure machine and the needle barely moves across the range you actually use, so small changes — which is where the diagnostic value is — become invisible.
For reference, CCW also stocks HydraMaster 074-003 (0–1000 psi) and 074-167 (0–3000 psi). Check what your machine actually runs at before ordering.
Reading it properly
Note what your machine reads at rest, at trigger and on by-pass while it is known good. That baseline is what makes the gauge useful afterwards.
- Reads correctly at rest, collapses under trigger — by-pass valve seals or the pump.
- Will not reach the set point at all — by-pass, pump, or a restriction upstream.
- High pressure with poor flow — a restriction downstream. Start with the inline strainer and the orifice, not the pump.
- Hunting or creeping — a by-pass ball not seating cleanly, usually debris rather than wear.
Fitting
Supplied with the PGUC-250 mount. Check your panel cut-out and connection before ordering if the existing gauge was mounted differently.
A needle that no longer returns to zero at rest has been over-pressured or shocked. Replace it rather than allowing for it — an inaccurate gauge will send you chasing faults that are not there.
Frequently asked questions
Will it suit a HydraMaster?
It is listed as an alternate for HydraMaster 074-007. Check the mounting and connection, and ask us if you are unsure.
What does it replace?
Sapphire SS-26-005 and SS-26-041.
Do I need the vacuum gauge too?
Pressure tells you what the pump is doing; vacuum tells you what the blower and the hose run are doing. The matching instrument is 26-044, 0–30 inHg vacuum.
Is the mount included?
Yes — the PGUC-250 mount is included.
My machine runs to 2000 psi. Can I use this?
No. Use a gauge rated above your machine's working pressure.
Tell us your machine model and the pressure it runs at and we will confirm the correct gauge range before you order.
More Gauges & Meters, and more Sapphire Scientific parts.
