Product Description
| Manufacturer | Duplomatic MS | Model | RLM3T-A16/21N-D12K1 |
| Valve type | Electric fast/slow speed selection valve | Nominal size | NG6 / CETOP 03 |
| Mounting | Sandwich / modular, ISO 4401-03-02-0-05 | Maximum operating pressure | 250 bar |
| Flow control function | Return-line T control in both directions | Slow-flow adjustment range | 0.025-16 l/min |
| Solenoid bypass valve | Normally open (NO) | Maximum flow in free lines | 65 l/min |
| De-energized mode | Fast / bypass flow | Energized mode | Slow / regulated flow |
| Power supply | 12 V DC, ±10% | Coil connection | K1, EN 175301-803 (ex DIN 43650) |
| Coil power | 22 W | Nominal current | 1.84 A |
| Manual override | None, standard version | Seals | NBR |
| Ambient temperature | -20 to +50 °C | Fluid temperature | -20 to +80 °C |
| Fluid viscosity | 10-400 cSt; recommended 25 cSt | Cleanliness | ISO 4406:1999 class 20/18/15 |
| Duty cycle | 100% | Protection | IP65 with correctly installed matching connector |
| Switching time, energizing / de-energizing | 85 / 60 ms | Catalogue mass | 3.1 kg |
| Flow adjustment | Calibrated knob with locking screw | Design series | 21 |
RLM3T-A16/21N-D12K1 - Duplomatic electric fast/slow speed selection valve
RLM3T-A16/21N-D12K1 combines an RPC1 compensated flow regulator with a KT08 solenoid poppet bypass valve for switching between fast travel and an adjustable working speed. The slow-flow range is 0.025-16 l/min. The modular assembly mounts below ISO 4401-03 directional valves and operates at pressures up to 250 bar.
RLM3T regulates the return flow through T from the directional valve mounted above it, allowing speed control in both directions of actuator movement.
The A version uses a normally open (no) solenoid bypass: without power the valve provides fast / bypass flow; when energized it provides slow / regulated flow. The 65 l/min rating refers to free lines, not the nominal slow-flow setting. Select the fast-flow operating point using the catalogue operating-limit curve.
Electrical connection and installation
This NBR version uses a 12 V DC, 22 W coil with K1 connection. The electrical connector is ordered separately; IP65 requires a correctly connected matching connector. NBR seals are intended for mineral hydraulic oil HL/HM. Switching times are catalogue reference values measured with 36 cSt oil at 50 °C. The downloadable series 20 CAD represents the external mounting geometry; the catalogue states that overall and mounting dimensions remain unchanged for design series 20-29. Availability and delivery time are confirmed on request.