Modular brass manifold with double chamber equipped with black EPP insulation shell, suitable for circulation modules art. R001-R002-R003. Manifolds art. 785 can be used as single units or connected in series up to a maximum of 6 to serve several users, simplifying the installation operations and reducing the size of installations. Included in the package there are nuts, bolts and two O-rings to close the single manifold or connect several manifolds in series.
For easy and practical installation of the mixing and circulation groups in the
thermal plant, ICMA offers a brass manifold, provided with insulation shells
and head plugs.
The 785 manifolds can be connected in series, to serve as many user’s points
as required (at high or low temperatures), for easier installation operations
and reduced overall dimensions.
The main advantage of these manifolds is that they receive in one single
“body” both the delivery fluid coming from the boiler and the return fluid
from the plant. This can be realized thanks to the special inner structure of
the manifold, consisting of two separate chambers, duly sized to keep both
flows apart.
The 785 manifolds are supplied equipped with insulation shells.
These are in PPE, to guarantee correct thermal insulation and optimum
strength to steam penetration. Also the sealing O-ring and the tightening
bolts are provided, to connect several manifolds in series or to install the
special head plugs in a safe and simple manner.
The female union assemblies G1” or G3/4”, the wall support assemblies, the head plugs and the G1” plugs with closing O-Ring, if required, the lower
manifold inlets, are supplied separately. This makes it possible to order as many as required, according to the type of installation.
It is possible to assemble two or more manifolds in series, to serve as many circuits as required, keeping one single boiler to heat the heat conveying
fluid at high temperatures.
When coupling two manifolds, great attention must be paid to the arrangement of the ends: one side houses the seat of the sealing O-Ring, the other
side only houses the discharge for coupling to the next manifold. The manifolds orientation is not significant: it is important to have the right space
to insert the sealing O-Ring (please referto the diagrams below).
It is then necessary to close the ends of the manifold (or of the series of manifolds) using the head plugs provided (article 87790AF05, to be ordered
separately). Attention must be paid to the different arrangements of the plug at both sides (one side houses the sealing O-Ring, the other side houses
the discharge for coupling to the manifold).
When the orientation of the manifolds and the plugs is set, mount the assembly. Carefully position the sealing O-Ring in the relevant seats and fix the
manifolds and the plugs using the screws, the lock washers and the nuts provided with the manifolds and with the plugs. These must be installed as
shown in the pictures below.
If two or more manifolds are to be connected in series close the lower outlets not in use using the G1” plugs with O-Ring seals (article 87173AF05
which can be ordered separately).
The manifolds for thermal plant can be wall mounted using the “wall support assembly” provided, which consists of a bracket and the fixing blocks with
screws. When the bracket is fixed to the wall, insert the “rear insulation shell” and then the manifold. Then proceed with the hydraulic connections.
Upon assembly completion, also install the front insulation shell.
It is required the installation of a hydraulic separator between the boiler and the manifold, to make the circuits independent and prevent any
interferences between the pumps installed.
When several manifolds in series are installed, it is possible to connect an expansion vessel at one of the free lower outlets. This will absorb the
volume increase resulting from the heating of the heat conveying fluid.
MATERIALS:
Body: Brass CB753S
Caps and unions: Brass CW617N – EN 12165
Head plug: Brass CW617N – EN 12165
Tightening bolts: Stainless Steel
Flat gaskets: EPDM Perox
Sealing gaskets: EPDM Perox
Insulation shells: PPE
Conductivity of shells λ(ΔT): 0.041 (W/mK)
TECHNICAL DATA:
Fluids used: Water and glycol solutions
Maximum percentage of glycol: 50%
Maximum operating pressure: 10 bar
Maximum temperature: 95°
