
26
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
Comentarios a estos manuales