Common Items
~Ball Pen Size
PARTSALL.COM your parts dept CAT. #12 6 Common
Threaded Pipe Size (NPT)
B B
Flexible Tubing Size
Threaded Pipe Size
NPT( National Pipe Thread)
1/8”(OD 0.38”), 1/4”(OD 0.52”),
3/8”(OD 0.66”), 1/2”(OD 0.83”),
3/4”(OD 1.04”), 1” (OD 1.31”)
B- OD=Outside Diameter
Inch Size - used in most American machine
3/16, 1/4, 5/16, 3/8 & 1/2 inch
Metric Size - used in most Import and some
American machine
4, 6, 8, 10, 12 & 16 mm
~ Dime Size
~Nickel Size
~Quarter Size
Contactor Spec Maros Valve Part # Rovel Valve Part #
Boiler Pump Model
Electrical Voltage (Mostly used)
AC Single Phase ; 12, 24, 110-120, 220-240V
AC Three Phase ; 240, 400, 480, 600V
DC(Direct Current); 12, 24V
B
A
B
A A
Part No. Part No.
Threaded Pipe Size
Flexible Tubing Size
SPDT -
Single Pole Double Throw
DPDT-
Double Pole Double Throw
Pump Model Contactor Model Coil Voltage
Size Chart & Part #
1/4” B- OD
1/8”
3/8”
1/2”
3/4”
1”
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