English (GB)
9
5.4.2 Type key
5.5 Accessories
5.5.1 Unions and valve kits
Note: The product numbers are always for one complete set,
including gaskets. The product numbers for the standard sizes
are printed in bold.
G-threads have a cylindrical form in accordance with the EN ISO
228-1 standard and are not sealing the thread. It requires a flat
gasket. You can only screw male G-threads (cylindrical) into
female G-threads. The G-threads are standard thread on the
pump housing.
R-threads are tapered external threads in accordance with the EN
10226-1 standard.
Rc- or Rp-threads are internal threads with either tapered or
cylindrical (parallel) threads. You can screw male R-threads
(conical) into female Rc- or Rp-threads. See fig. 9.
Fig. 9 G-threads and R-threads
Example UPS3 15 50/65 130
Pump type
Nominal diameter (DN) of inlet and outlet
ports [mm]
Maximum head [dm]
[ ]: Cast-iron pump housing
Port-to-port length [mm]
Product numbers, unions
Union nut with internal
threads
Union nut with
external threads
UPS3
Connection
3/4 1 1 1/4 1 1 1/4
15-xx G 1 1/2 529921 529922 529821 529925 529924
TM06 7632 3616