Icma 938 – 968 | Single-double pipe valve for towel heaters and design radiators

The manual valves 938, 968, 923 and
943 can be used on systems with single
and double pipe type radiators.
The valves can be installed only through
the lower radiator connection, which is
used both as fluid inlet and outlet.

In single-pipe systems, the radiators are connected in series, with respect to each manifold derivation. The 938, 968,
923 and 943 series valves, set for this type of system, send only a part of the flow to the radiator, while the remaining
part of fluid is bypassed and routed to the next radiator. In this way the radiators can be intercepted individually (for
exclusion or maintenance), allowing the functioning of the radiators installed further downstream.

In the two-pipe system, the radiators are installed in parallel, with respect to all the manifold derivations. In this type
of system, the 938, 968, 923 and 943 series valves send up to 60% of the inlet flow to the radiator.
The valves series 938, 968, 923 and 943, in double pipe mode, incorporate in a single device the dual function of
the manual valve and of the lockshield that characterizes the systems where the fluid inlet valve is connected to the
upper connection of the radiator and the holder to the lower one .

Working Fluids: water and
glycole sol.
Max percentage of glycole: 30%
Max working pressure: 10 bar
Max differential pressure: 1 bar
Max working temperature: 100°C
Max flow to radiator: See pressure
drop diagram

Body: Brass CW 617 N UNI EN 12165
White (923-943)
Chrome (938-968)
Setting nut: Brass CW617N UNI EN 12164
Spring and control rod: Stainless steel
Hydraulic gasket: EPDM perox
Handle: ABS white (923-943)
ABS chrome (938-968)