Installer manual Fleck 2850 SXT - Description
Ref. MKT-IM-030 / C - 12.05.2020
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3
Description
3.1
Technical specifications
Design specifications/ratings
Valve body
Brass
Rubber components
EP or EPDM
Weight (valve with controller)
4.6 kg (max)
Recommended operating pressure
1.8 - 8.6 bar
Maximum inlet pressure
8.6 bar
Hydrostatic test pressure
20 bar
Water temperature std
1 - 43°C
Water temperature for HW volumetric 1 - 65°C
Water temperature for HW time clock 1 - 82°C
Ambient temperature
5 -40°C
Regeneration flow
DF
Bypass of raw water during
regeneration:
Standard
Yes
NBP version
No
Flow rates (3.5 bar inlet - valve only - top mount)
Continuous service flow (Δp = 1 bar)
11.6 m
3
/h
Peak service flow (Δp = 1.8 bar)
15.0 m
3
/h
Cv*
13.2 gpm
Kv*
11.4 m
3
/h
Maximum backwash flow
(Δp = 1.8 bar)
11.1 m
3
/h
*Cv: Flow rate in gpm across the valve at a pressure drop of 1 psi at 60°F.
*Kv: Flow rate in m
3
/h across the valve at a pressure drop of 1 bar at 16°C.
Valve connections
Tank top mounted adapter
4” – 8 UN
Inlet/Outlet
1½" BSP female
Riser tube
50 mm [DN40]
Drain line
1" NPT
Brine line (1600/1650)
⅜"
Brine line (1700/1710)
½”
