A-Best Industrial Inc. Fittings, Valves, and Tubing keeps a local inventory of stocked pressure gauges in San Pedro, CA. We carry all stainless steel gauges in 1-1/2", 2" and 2-1/2" dials and 4-1/2" process gauges, plus the thermometers, thermowells, diaphragm seals, digital gauges and gauge valves that go with them.
All stainless steel pressure gauges: 1-1/2" to 2-1/2"
These gauges have a stainless steel case, stainless wetted parts (socket and Bourdon tube) and a crimped stainless bezel, with the case welded to the stem. They're built for corrosive environments, washdown, offshore and outdoor service. Our 2-1/2" gauges are hermetically sealed, with a seal-welded base to reduce potential leak points.
| Mounting | Dial sizes | Fill |
|---|---|---|
| Bottom (lower) mount | 1-1/2", 2", 2-1/2" | Glycerin filled or dry |
| Center back mount | 1-1/2", 2", 2-1/2" | Glycerin filled or dry |
| Panel mount (U-clamp or front flange) | Available on request | Glycerin filled or dry |
Specifications
| Case, bezel, wetted parts | Stainless steel, welded case-to-stem, crimped bezel |
| 2-1/2" gauges | Hermetically sealed, with a seal-welded base to reduce potential leak points |
| Connection | 1/8" or 1/4" NPT |
| Ranges | Vacuum, compound and pressure, up to 20,000 psi |
| Accuracy | 3-2-3% of span (1-1/2" and 2"); 2-1-2% of span (2-1/2") |
| Ambient temperature (dry) | -30°F to 180°F. Ask us about filled gauges for cold service. |
| Lens | Plastic |
| Options | NIST-traceable calibration certificates |
Need 1% accuracy? We can also supply 2-1/2" and larger stainless gauges to ASME B40.1 Grade 1A.
Glycerin filled or dry?
Glycerin filled gauges damp pointer flutter from vibration and pulsation, like pumps, compressors and hydraulic units, and they keep the movement lubricated longer. Dry gauges suit steady pressure, gas service and spots where the fill could be a concern. If you're not sure, tell us where it's going and we'll recommend one.
4-1/2" process gauges
We stock 4-1/2" process gauges in a range of pressure ranges, in lower mount and back mount. They're built for refinery, chemical, water treatment and gas service where you need a big, easy-to-read dial and a safer case.
| Dial size | 4-1/2" |
| Case | Solid front with a baffle wall between the Bourdon tube and the window, plus a pressure-relieving back for operator safety |
| Wetted parts | 316L stainless steel |
| Accuracy | ±0.5% of full scale, ASME B40.100 |
| Ranges | 0–15 psi through 0–20,000 psi, plus vacuum and compound (for example -30 inHg to 300 psi) |
| Connection | 1/4" or 1/2" NPT |
| Mounting | Lower mount, back mount, and wall or surface mount |
| Fill | Dry or glycerin filled |
| Protection | IP65; safety glass window available for high ranges |
Digital pressure gauges
Digital pressure gauges give an easy-to-read display for test stands, calibration checks and anywhere a dial is hard to read. Ask for ranges and connection options.
Thermometers
Bimetal dial thermometers in back angle and adjustable angle styles, remote dial and gas-actuated thermometers, 5" scale industrial thermometers, solar digital thermometers, and RTD and thermocouple options. Tell us the range, stem length and connection, and we'll quote the match.
Thermowells
Standard and lagging extension thermowells protect thermometers and temperature sensors and let you pull them without opening the process. We match bore, insertion length, process connection and material to your thermometer and line.
Diaphragm seals
Diaphragm seals keep corrosive, viscous, dirty or sanitary media out of the gauge. Options include mini seals (standard, high pressure and low pressure), threaded and flanged seals, sanitary seals, and one-piece molded gauge-and-seal assemblies. Seals can come filled and assembled to the gauge.
Gauge valves and accessories
- Needle valves: mini, full size, angle, and hex body in soft and hard seat
- Gauge valves: block and bleed and multi-port gauge valves
- Snubbers: filter type, adjustable and piston type
- Also: gauge cocks, mini ball valves, syphons, test port plugs, pressure limiting valves, rubber gauge covers and max/min pointers
Need instrument tube fittings and manifolds to tie it all together? We're an authorized DK-Lok distributor.
Get a quote
Send the dial size, range, mounting, connection and fill, and we'll check our stock. Call 310-833-3353 or email sales@abesttube.com. Open Monday–Friday, 8:00 AM–5:00 PM Pacific, with after-hours emergency service. Request a quote.
Specifications are typical. Confirm the exact rating for your application before ordering.