Product Description; Emergency Manual Lever Control; Materials Used; Surface Protection Against Corrosion - Voith Argo Hytos Rperx3-06 Bedienungsanleitung

4. Product description

The hydraulic part of the valve consists of a cast iron body (1) with output ports on the lower base, a hardened steel spool and return springs that
hold the spool in its base position. The spool is adjusted to the extreme positions by means of electromagnets (2) certified for explosive atmospheres.
The solenoid coils are mounted on the actuation system by means of a special nut (3). The body of the manual lever control (4) is built between the
solenoid and the hydraulic part. When the valve is operated by the solenoid, the lever remains in its basic position due to the backdrop and does not
reduce its performance.

4.1 Emergency manual lever control

The emergency manual spool position control is used to reposition the spool in the event of loss of solenoid function or in the event of power failure
to the coils to achieve a safe position of the operated mechanism.
The use of the manual emergency control is limited to a maximum pressure of 100 bar in the T-port.
CAUTION

4.2 Materials used:

Body of valve and emergency manual control lever – grey cast iron
Spool – hardened steel
Compression spring – patented steel wire for the production of springs
Valve seal – NBR
Pole piece, tube and armature of actuating system, coil fastening nut - low carbon steel
Non-magnetic ring and pin of actuating system – Cr-Ni stainless steel
End plug of actuating system – brass
Coil body – PA
Coil winding – enamelled Cu wire
Coil seal on actuating system – silicone rubber
Shipping plate – PE
The materials used are not found in the lists of prohibited and mandatory documented substances
Directive 2015/863/EU (RoHS) and EU Regulation no. 1907/2006 (REACH).

4.3 Surface protection against corrosion

The valve surface is zinc-coated with 520 h corrosion protection in NSS according to ISO 9227. Surface layer without hexavalent chronium Cr+6.
www.argo-hytos.com
Operating instructions_RPERX3-06_14095_3en_07/2024
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Use of the manual emergency control is forbidden when the valve solenoids are operational.
If the valve is operated by solenoids do not use the emergency manual control lever of the valve spool.
Valve damage and loss of function may result.
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