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3 way motorised zone valve with spring return for fan coil
SKC Series Electric Two-Way Valve is applied to on-off control for HVAC water system, is composed of driver and valve body. The valve body is casted with excellent brass and the driver is made of flame-retardant engineering plastic, with limit switch inside and manual valve opening mechanism, is easy to debug and test pressure. In which, B type driver has built-in relay, could realize one-line control and multi-valve parallel, match with various temperature control switches.
Technical data
◆ Driving voltage:220VAC 50Hz/60Hz (12V,24V,110V are available for
choice)
◆ Power consumption:5VA (Only in the course of open and close)
◆ Pressure-bearing of valve body:1.6MPa
◆ Allowance pressure:0.6MPa
◆ Applicable medium:cool water and hot water
◆ Open and close time:about 16 s for open,about 16 s for close
◆ Temperature of applicable medium:1-95℃
◆ Applicable environment temperature:0-65℃
◆ Connection manner:ZG internal pipe thread (could be custom made)
Character of structure
◆ Inlay contact switch, the motor is power off after the valve
completes open and close, so it has long service life and power
saving, but is also safe.
◆ The valve body is separated with driver, could be disassembled
rapidly.
◆ The valve body structure is unique, is allowed of big pressure
difference.
◆ The driver has manual controller is available for system
debugging and maintenance, the manual opening is about 70% (push
down the white driving arm to the bottom, and then push inside,
when the power is recovered, the valve and driver will return to
automatic position)
◆ B type driver has inlay relay, one-line control and three-speed
switch, realize multi valves parallel, and match with various
temperature control switches. (special for four-pipe)
◆ Select ordinary driver, one temperature controller matches only
one electric vale, or any results caused will be nothing with
manufacturer.
Points for installation:
◆ Please read this instruction carefully before installation, ask
professional to perform installation and connect according to
wiring diagram.
◆ The electric valve should be installed to the place with certain
distance from around articles, but also could be reached by
maintenance person. No electric equipments are allowed to install
under the valve body, as to avoid leakage and danger. The driver
shall be above the valve body horizontally.
◆ Clear up the sundries in the pipe before installation, install 50
mu (or thinner) filter in the front end of electric valve.
Models
Model | Port | Size | L | H | Kv | |
SC215 | 2-way | 1/2’’ | DN15 | 90 | 114 | 4.5 |
SC220 | 3/4” | DN20 | 95 | 116 | 5.7 | |
SC225 | 1” | DN25 | 105 | 128 | 8.7 | |
SC315 | 3-way | 1/2’’ | DN15 | 90 | 133 | 4.3 |
SC320 | 3/4” | DN20 | 95 | 133 | 5.5 | |
SC325 | 1” | DN25 | 105 | 144 | 8.3 |
Wiring diagram and schematic diagram of relevant circuit
Appearance, section and main dimension
Installation diagram