Solenoid actuated valvesseries K with rotatable coil with NAMUR connection |
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| A range of indirectly operated valves with NAMUR connection (according to VDI/VDE 3845), based on our popular K-series valves. Available in 5/2 versions with one or two coils and 5/3 with a central position that is both vented and pressurized. A 3/2 version can be created using an adapter that is ordered separately. Using a connection plate, the valve can then be mounted directly on the cylinder inlet. A connector is also included. Valves series K contains spool and sleeve assembly, which guarantee long lifetime of valve. |
| We make the spool and sleeve assembly from hardened stainless steel. The technical interest is that thanks to the precise grinding and honing of both parts, such accuracy is achieved that the spool in the sleeve moves on the air cushion. This essentially eliminates possible wear and at the same time can be moved very easily and very quickly with the piston. The clearance is so small that there are no leaks even without a seal. |
| Order codes | Technical data | Dimensions | Connectors | Spare coils | Data sheet (PDF) | Technical information |
Technical data
| Series | K2 NAMUR | |
| Port | G1/4" (NAMUR for outlets 2 and 4) | G3/8" (NAMUR for outlets 2 and 4) |
| Connection of external pressure supply port | M5 | M5 |
| Flow capacity [Nl/min] | 1700 |
1700 |
| Working pressure [MPa] | 0,15 to 1,0 (vacuum to 2,1 when external pilot supply is used) | |
| Pilot pressure range [MPa] | 0,15 to 1,0 | |
| Power input [W/VA] (standard coils) | 3W for DC voltage, 7,5 VA inrush and 5 VA hold for AC voltage | |
| Response time for DC voltage [ms] | 10 energize, 35 de-energize | |
| Response time for AC voltage [ms] | 7 energize, 35 de-energize | |
| Temperature range [°C] | medium temperature max. 50, ambient temperature -20 to +50 | |
| Enclosure (standard coils) | IP65 with sealed and fastened connector | |
Conversion of internal to external air pilot supply
External air pilot supply is used, when air supply pressure is lower than 0,15 MPa (1,5 bar), when air supply pressure is higher than 1,0 MPa (10 bar) as well as for vacuum and or if another medium than compressed air is used. In such cases, it is necessary to change the standard setting, where the air for auxiliary control is taken directly from the supply (1) of the valve.
| When converting from internal to external pilot supply, please proceed as follows: | ||
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1) Dismount connector lid with pilot valve, pay attention to the O-ring between the cover and the valve body insert it into the hole with the O-ring in the lid, check if the O-rings fits correctly in the lid and put the lid back (tightening torque 1.5 Nm), insert and fasten the connector modified compressed air with pressure 0,1 to 1,0 MPa |
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