Refco LP-88 Especificaciones Pagina 26

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Pressure Gauges
R3 Series
Oil Filled Bellow Type Gauges
Bellow type, Class 1.0 accuracy, oil filled gauge
Hermetically sealed, no oil fill plug
on the top of gauge to allow leakage
Highly over-pressure resistant,
can withstand up to 2.5 times the printed scale
Zero point adjustable
All anodized aluminum body, no plastic
Color-coded for easy identification of high and low side
2 ¾" (68 mm) outside diameter, easy to read
Pulse free
Designation Description Part No.
R3-220-F-R12 R12/R22/R502 scales,
oil-filled, compound 9884479
R3-320-F-R12 R12/R22/R502 scales,
oil-filled, pressure 9884480
R3-220-F-R22 R22/R134a/R404A scales,
oil-filled, compound 4667472
R3-320-F-R22 R22/R134a/R404A scales,
oil-filled, pressure 4667480
R3-220-F-R134a R134a/R404A/R507 scales,
oil-filled, compound 9884481
R3-320-F-R134a R134a/R404A/R507 scales,
oil-filled, pressure 9884482
R3-220-F-R410A-FG R410A/R404A/R22 scales,
oil-filled, compound 4662399
R3-320-F-R410A-FG R410A/R404A/R22 scales,
oil-filled, pressure 4662403
Bellow Type, Class 1.0 Gauges,
Oil Filled and Dry Execution
Fundamentals of a Bellow Gauge – The best gauge you’ll ever have.
A metal bellow type gauge is very sensitive and therefore much more
accurate than a standard bourdon tube gauge.
The main benefit of a bellow type gauge is that it is extremely
accurate and highly over-pressure resistant.
The bellow gauge is accurate within 1% around the gauge face
and can withstand up to 2.5 times over-pressurization without damage
to the gauge.
A bourdon tube gauge would never withstand this type of over-
pressurization.
R3-320
Zero point
adjustment
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