Anyone know what make of gauge this is?
Anyone know what make of gauge this is?
(OP)
Its from a fire system and needs replacing.. any ideas?
http ://files.e ngineering .com/getfi le.aspx?fo lder=1205e 681-e605-4 cc9-aea0-4 7ca2e4b0ad 4&file =photo.JPG
Cheers
http
Cheers





RE: Anyone know what make of gauge this is?
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If we learn from our mistakes I'm getting a great education!
RE: Anyone know what make of gauge this is?
RE: Anyone know what make of gauge this is?
Lots of manufacturers. Every gauge manufacturer has multiple lines, designed for specific purposes.
In the US, ASME B40.100-2005 covers pressure gauges, any legitimate manufacturer meets the standard.
For gauges with the manufacturer's logo, price reflects the quality of the gauge.
For gauges with a private label logo, price is a spare parts profit center; anywhere on the map.
Silk screening is cheap, readily available and widely exploited in the OEM gauge business. Thousands of company logos on custom silk screened onto pressure gauge dials by the OEM, hoping the end user will unwittingly go back to the OEM who originally installed the 'system' and pay $50 for $10 gauge, or something proportional. It's like anything else, if you don't buy gauges on a daily basis, why would you know what the market is?
You might not get an OEM's discount, but you probably will only pay 1/3 to 1/5 of what an OEM will charge you for 4" brass, 1/4" NPT lower mount, glycerin filled gauge from a gauge distributor who handles the gauges directly from the gauge manufacturers.
You can get an idea of what 4" gauges go for here:
http://www.lesman.com/acatalog/LF21353_4_Dial.html
scroll down about half way to get to 400 psi gauge or search on the page for: WIKA 213.53 - 4" Dial Gauge 9694140
The cost of calibration cert is never included in the gauge price, that's an added service.
Your measured, working pressure should hang around mid-scale (12:00 on the gauge). If you overpressure a bourdon tube gauge, it's toast (needle never returns to zero, bourdon is stretched beyond its elasticity.)
The Wika brand is on the high end of the quality scale. Lots of Chinese 'stuff' is out there, too.
I, too, recommend glycerin filled gauges.
Have fun shopping.
RE: Anyone know what make of gauge this is?
If you don't do it, the gauge readings will be inaccurate, usually noticeably low, because the elasticity of the plug will be working in parallel with the spring rate of the bourdon tube.
Corollary: You have to mount the gage so the plug is 'up'.
Yes, you can use them in portable applications, if you pierce the plug instead of removing it, and wrap it in a rag or bag it when you throw it in the toolbox, because a little bit of glycerin will leak out.
Mike Halloran
Pembroke Pines, FL, USA
RE: Anyone know what make of gauge this is?
http://www.ashcroft-gauges.com/products.htm
main phone, sales: 203-385-0217
Regards,
Aldo
RE: Anyone know what make of gauge this is?
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If we learn from our mistakes I'm getting a great education!
RE: Anyone know what make of gauge this is?
RE: Anyone know what make of gauge this is?
http://www.gageitinc.com/sprinkler.php