Icma 875 – 877 | Distributor for single/double pipe

Distributor four ways single-double pipe group, with two ways
of connection to the pipes of the adjustable system, to receive
pipes coming from the floor or from the wall.
The valve is supplied in a double-pipe version but can be
converted to a single-pipe version with a simple operation (see
instruction sheet).
It is also supplied with a fitting for the connection of a Ø15mm
probe.

The ICMA distributors must be installed in the system respecting the flow direction, which must enter from the
connection part to the system and exit towards the heating body.
Attention in case of incorrect installation the following problems may arise:
– The appearance of a noise similar to a strong and continuous hammer is due to the fluid that is passed through the
valve in the wrong direction, the only solution to this problem is to reverse the valve with the holder on the radiators
that manifest the problem, restoring the correct direction of the fluid in the valve.
– The appearance of a sound similar to a loud hiss during modulation is due to an excessive prevalence present in the
valve. To solve this problem it will be sufficient to keep the system pressure under control by providing variable speed
pumps combined with differential pressure regulators, or the use of differential by-pass valves

MATERIALS
Body, cap and pipe union:
(Particolari nichelati) Brass CW617N – UNI 12165
Adjustment nut: Brass CW617N – UNI 12165
Spring and obturator rod: Stainless steel
Gasket: EPDM Perox
Technical Features
Working fluids: Water and glycol solution
Max percentage of glycol: 50%
Max working pressure: 10 bar
Max differential pressure: 1 bar
Fluid temperature: 5 ÷ 120°C
Valve obturator running gap: 3,5 mm