Advantages
The new Topway S-D stainless steel manifold is characterized by the return bars, equipped with special inserts (dynamic valves) with continuous flow regulation and a membrane mechanism that guarantees automatic hydraulic balancing of the radiant heating and cooling systems. regardless of the differential pressure. Even in the presence of highly oscillating differential pressures, which can occur in the event of opening or closing sections of the system, the flow rate is kept constant within the adjustment range. To set the project flow rate, the appropriate numbered ring nut (liters / min) is rotated using the special plastic key supplied. The insert has an interception device which, in combination with electrothermal actuators, M30x1.5 connection, and room thermo-stats, can be used to regulate the temperature of the single room. The delivery manifold is equipped with interception devices complete with indicators to check the actual passage of the flow.

Technical data
Distribution bars: AISI 304 stainless steel with high nickel content and without copper for greater resistance to corrosion.
Sealing gasket: peroxide EPDM.
Maximum operating temperature: + 80 ° C
Minimum operating temperature: + 2 ° C
Maximum operating pressure: 6 bar (600 kPa)
Flow rate adjustment range: 0.5-5 l / min
Head threads: G1 “F.
Outlets threads: 3/4 ”Eurocone
Center line between ports: 50mm
Actuator connection thread: M 30 x 1.5
Piston stroke: 1.8 mm
Closing dimension: 11.8 mm
Closing force (actuator): 90 - 150 N

Adjustment range:
Δp max : 150 kPa (1,5 bar)
Δp min. (0,5 - 2 l/min): 10 kPa (0,10 bar)
Δp min. (>2 - 2,8 l/min): 15 kPa (0,15 bar)
Δp min. (>2,8 - 5 l/min): 20 kPa (0,20 bar)

For values lower than Δp min. the valve works like a normal valve with thermostatic option, therefore the flow rate varies according to the differential pressure.

Supplied with:
- Lockshields with built-in flow indicators
- Dynamic valves with continuous flow regulation, 0.5 - 5 l / min, designed for electro-thermal heads
- Nr. 2 1” blind plugs with o-ring gasket
- Nr. 2 1/2“ water drain valves
- Nr. 2 1/2“ air vent valves with vent (automatic + manual)
- Nr. 2 double metal supports
- Nr. 1 key for adjusting the dynamic valves (supplied)

Note: to be completed with no. 2 Progress 1” ball valve with butterfly handle red and blue, with filler, with or without thermometer (not included).