Industrial stainless steel flow/return manifold set IVAR.CS 658 with regulating valves 6/4" × 3/4", 5-way

Product detailed description

The IVAR.CS 658 6/4" × 3/4" 5-way set combines a stainless steel flow manifold and return manifold of nominal size DN 40 into a single mounting unit. It is suited to heating and cooling systems and to industrial pipe networks where a large water flow has to be split into 5 branches. The outlets are fitted with thermostatic valves and regulating lockshield fittings, so each branch can be adjusted or isolated independently.

Design and connections

• bodies made of AISI 316L stainless steel, valves of CW617N brass, EPDM seals
• side inlets with 6/4" and 1" female thread, 5 outlets with 3/4" female thread on each body
• outlet centre distance 100 mm, body length 500 mm, overall length 545 mm
• distance between the flow and return manifold selectable during installation
• flow and return are colour-coded (IN red, OUT blue)
• threads to ISO 228/1

Operating values

• pressure up to 10 bar, temperature up to +120 °C
• medium: water or water-glycol mixture with max. 30% glycol
• flow through the DN 40 body: 5000 l/h at 1.0 m/s, 6000 l/h at 1.2 m/s, 7400 l/h at 1.5 m/s
• flow through one outlet with thermostatic valve: 700, 850 and 1000 l/h at the same velocities

Scope of delivery

Flow manifold body and return manifold body, regulating and shut-off valves, 2 end pieces with manual air vent and rotatable drain valve, and mounting brackets. The set is supplied disassembled and is completed on site.

Note: installation, pressure tightness test and commissioning must be carried out by a qualified person. Flush the system before start-up; the manufacturer recommends treating the water with GEL.LONG LIFE 100 or MAYLINE SBA.

The IVAR.CS 658 range is made in sizes 6/4" × 3/4" (DN 40) and 2" × 3/4" (DN 50) with 2 to 12 outlets.

Technical data

Frequently asked questions

What systems is the IVAR.CS 658 6/4" × 3/4" 5-way set intended for?
For heating and cooling systems and for industrial pipe networks that require high flow rates. The medium is water or a water-glycol mixture with a glycol concentration of no more than 30%.

What is included in the delivery?
A flow manifold body and a return manifold body with 5 outlets each, regulating and shut-off valves, 2 end pieces with manual air vent and rotatable drain valve, and mounting brackets. The parts arrive disassembled and are put together during installation.

What flow rate can the set handle?
The DN 40 body is sized for 5000 l/h at 1.0 m/s, 6000 l/h at 1.2 m/s and 7400 l/h at 1.5 m/s. One outlet with a thermostatic valve passes 700, 850 or 1000 l/h at the same velocities.

How is the set filled and vented after installation?
After the joints have been tightened, a pressure tightness test is carried out. Then the filling hose is connected to the fill/drain valve and the manual air vent is opened – once no more air escapes, filling is complete.