HAWE EM11DG24 valve

These 2/2 way directional cone seat valves zero leakage while locking position change. The following versions are available: Basic version 'Directly driven, two sizes up to 3 l / min (type EM..D .. and EM..DS ..). The application, as pilot or hydraulic relief valves for consumers, eg idle circulation circuit 2/2-way cartridge valves, 3-way flow control valves or pilot pressure limiting valves. "Piloted, four sizes up to 160 bpm. Basic flow pattern symbol 'Locked in home position, opening when energized (NO-characteristic)' Open in resting position, blocking when energized (NC-characteristic). Switching characteristics 'On / Off, the version with defines the flow direction (type EM 11 ... EM 41) as well as the direction of flow (type EM 12 ... EM 42)' Soft-shift, with hydraulic damping "hydraulic ramp" change (type EMP .. VG .. and EMP .. SG ..) 'Proportional, throttle prop (type EMP .. V .. and EMP .. S ..) Solenoid is a wet-type armature, that is, all the moving parts of the valve and solenoid are lubricated by hydraulic fluid, the cavity coil sealed to the outside to the tube armature by means of the O-rings. Therefore, the solenoid is highly protected against environmental influences eg corrosion. Valves are bled automatically during operation. A conical pin directly opens or closes the valve passage directly with the type of actuator. While a conical pin opens (NC) or closes (NO) the pilot duct of a staggered piston with the pilot type. Creating an opening (lifting from the valve seat) or closing force in opposition to the cross section and annular zones that open or close the main valve passage. The solenoid acts on the conical pin (directly actuated valves) or on the conical pilot pin (pilot valves), pulling with the NC-valves or pushing with the NO-valves and always acting against the return spring. The valve is designed to be self-locking, meaning saving vibration. There are several passage cross sections available with the EMP type .. to allow for a custom, characteristic change, see curves in sect 2.2.1. The operation of these valves take proper of the proposition. amplifier for example, type EV 1 M 2 acc. to D 7831/1 or EV type 1 G 1 acc. to D 7838. These valves are to be screwed in the form of threaded holes of a manifold that can be machined with a usual standard of drilling steel (tip angle 118 °), which automatically forming a stepped on the shoulder when the diameter of the core is perforated. The inlet to outlet sealing is carried out in the contact area between the edge sealing face of the threading at the end of the valve body and the stepping of the shoulders of the core diameter at the location of the thread. Various connection blocks available, which can also feature additional functions, for example drain valves, regulating valves, etc.
The nomenclature and design of 2/2 way solenoid actuation seated valve (cone seated design) Installed Arbitrary position Operating pressure pmax = 450 bar; type EM..V: pmin = 2 bar of the city of Perm. flow Depending on the type. The pressure of the hydraulic fluid fluid (DIN 51524 table 1 to 3); ISO VG 10 to 68 acc. for (DIN 51519) Viscosity range: min. 4; max. 1500 mm2 / s; optimum operating range: 10 ... 300 mm2 / s. Suitable are also biodegradable pressure of fluids of the type HEPG (Polyalkylenglycol) and HEES (synthesizer. Ester) at operating temperatures up to + 70 ° C. HETG (seed oil) is not suitable Ambient temperatures: -40 ... + 80 ° C Fluid: -25 ... + 80 ° C, pay attention to the viscosity range! Start temperature down to -40 ° C are acceptable (pay attention to the viscosity range during startup!), while the temperature of the operation during the subsequent execution is at least 20 K (Kelvin) higher. Biodegradable fluid pressure: pay attention to manufacturer's information. With regard to compatibility with sealing materials, do not exceed + 70 ° C.