
21
Standard Features of REFCO
KM2 and M2 Series Class 1.6
Bourdon Tube Gauges are:
Class 1.6 accuracy
2 ¾" or 68 mm outside diameter
Zero point adjustable
Pulse free
Color-coded for pressure and compound
Standard ¹⁄8" NPT bottom connection
All brass internal parts, no plastic
Standard Features of REFCO
GR Series, Glycerine, Class 1.6
Bourdon Tube Gauges are:
Class 1.6 accuracy
2 ¾" or 68 mm outside diameter
Glycerine-filled
Standard ¹⁄8" NPT bottom connection
All brass internal parts, no plastic
Same features for GR Series but with:
Zero point adjustable
Color-coded for pressure and compound
Standard Features of REFCO
M5 Series Class 1.0
Bourdon Tube Gauges are:
Class 1 accuracy
3 ¼" or 80 mm outside diameter
Easy to read
Retard protection
Zero point adjustable
Pulse free
All brass internal parts, no plastic
Standard Features of REFCO
R3 and R5 Class 1.0
Bellow Gauges are:
Bellow type gauges are extremely over-pressure resistant.
A bellow type gauge can withstand up to 2.5 times over-pressurization
of the printed pressure scale without damage to the gauge.
A bourdon tube gauge cannot withstand this type of over-pressurization
Class 1.0 accuracy
Available in 2 ¾" (68 mm) or 3 ¼" (80 mm), both large and easy to
read. PM series only available in 3" (76 mm)
Zero point adjustable
Silicone oil-filled, except PM series
Aluminum anodized body for R3 and R5 series
PM series is made with a fiberglass body
Hermetically sealed, no oil fill plug on the top of the gauge to allow
seepage or leakage for R3 and R5 series
Color-coded for pressure and compound
Standard ¹⁄8" NPT bottom connection
All brass or steel internal parts, no plastic
Relief device on back of gauge in case of extreme over-pressurization
for R3 and R5 series
Pressure and Vacuum Gauges
General Information:
Standard threaded connection - ¹⁄8" NPT
F = pressure scale on gauge in psi and temperature scale in degrees F
Temperature scales:
R12 = R12/R22/R502
R22 = R22/R134a/R404A
R134a = R134a/R404A/R507
R410A = R410A
R410A-FG = R410A/R134a/R22
Pressure scales:
R12, R22, R134a gauges:
Low side 30" vacuum up to 120 psi, retard to 350 psi
High side 0 psi up to 500 psi
R410A:
Low side 30" vacuum up to 500 psi
High side 0 psi up to 800 psi
M2-500
Commenti su questo manuale