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Perma-Cal Test Gauges ASME Grade 3A, ¼% of full scale accuracy Direct Drive movement Mirrored dial eliminates parallax errors Wide variety of case styles and colours Stainless steel and Inconel X-750 wetted parts Solid Front/Back Blowout safety case Each gauge comes with a factory calibration certificate 4½”, 6” and 8½” dial sizes 1/4” or 1/2” NPT bottom or back connection available Vacuum, Compound and Pressure ranges to 5000 PSI
Perma-Cal gauges utilize a spiral wound sensing tube to which the pointer is directly attached. There is only one moving part - no linkage or gears to wear out! This system is very tolerant to overpressure and has a high burst pressure.
Ordering Information Sample Part Number: 101FTMBDA21 - 4½” Dial with Front Flange, 0-100 PSI/700 kPa 1/4” NPT Bottom Connection 10
Pressure Range Codes Range Code Range B0 30”Hg/0 & -100/0 kPa Vacuum B1 30”Hg/30 PSI & -100/+200 kPa Compound B4 30”Hg/150 PSI & -100/+1000 kPa Compound BA 30 PSI & 200 kPa BC 60 PSI & 400 kPa BD 100 PSI & 700 kPa BE 150 PSI & 1000 kPa BF 200 PSI & 1400 kPa BG 300 PSI & 2000 kPa BH 400 PSI & 2800 kPa BI 500 PSI & 3500 kPa BQ 600 PSI & 4000 kPa BK 1000 PSI & 7000 kPa BM 1500 PSI & 10,000 kPa BN 2000 PSI & 14,000 kPa BP 3000 PSI & 20,000 kPa BR 5000 PSI & 35,000 kPa
Pointer Type/Dial TM - Knife edged pointer and mirrored band dial with external zero adjust  TW - as TM, without dampening Case Mounting Style F - Front Flange R - Rear Flange N - No Flange Dial Size Code 1 - 4 0 - 6 8 - 8 Case Colour A - Black B - Blue G - Green R - Red W - White Y - Yellow Fitting Position 0 - Rear 2 - Bottom 4 - Top Fitting Size 1 -  NPT 3 -  NPT 8 - 9/16-18 O-Ring Union (MIL G-18997) 9 -  BSP