Reasonably Predictable Misuse; Applied Standards And Directives; Safety Instructions; General Precaution - Mankenberg Rp 824 Originalbetriebsanleitung

Original operating manual
pilot-operated pressure regulators RP 824
These valves are no shut-off elements ensuring a tight closing of the valve. These valves
are no shut-off elements ensuring a tight closing of the valve. In accordance with DIN EN
60534-4 and/or ANSI FCI 70-2 they may feature a leakage rate in closed position in
Danger of
compliance with the leakage classes II – V:
fatalities
Leakage class II (metal sealing double seat cone) = 0.5% K
Leakage class III (metallic sealing cone) = 0.1% K
Leakage class IV (PTFE seal cone) = 0.01% K
Leakage class V, (soft seal cone) = 1.8 x 10
Consequently, according to DIN EN ISO 2503 and DIN EN ISO 7291, a safety valve has to
installed on the control side, which is dimensioned and adjusted in such a way that the
lower one of both pressure indications as mentioned below is relevant as response
pressure:
- 1.5 times the maximum set pressure and/or (P out) of the valve (see nameplate),
whichever is the lowest
- PS out (see nameplate)
The actuation pressure of the safety valve should be approx. 40% above the max. The
setting value of the pressure control valve.
The response pressure of the safety valve should be abt. 40 % above the max. set pressure
of the pressure control valve.
Failure to observe this regulation means danger to life and limb and may cause
damage to the pressure-regulating valve.

2.1 Reasonably predictable misuse

The valve is not a safety valve, equipment part with safety function or a shut-off device.
The valve is not intended for the application area defined in Chapter 1 Article 1 (1) of ATEX guideline 2014/34/
EU.
The valve is not intended for use with abrasive media, two-phase mixtures or unstable fluids. Unstable fluids
cause damage to the valve. Only stable fluids are permitted.
Additional loads must not be applied to the valve. For example, do not climb onto the installed valve or the
connected piping.

3 Applied standards and directives

The indicated product is designed according to the AD 2000 regulations without the data sheets S1 and S2.

4 Safety instructions

4.1 General precaution

The same safety regulations apply to a fitting as to the system into which it is installed. These instructions only
give those safety recommendations that have to be additionally observed for the fitting.

4.2 Special safety instructions for the plant operator

The following requirements for the intended use of a fitting are not the responsibility of the manufacturer but
have to be guaranteed by the user:
operating_manual_RP824_en_de.25.1 Issue 22.12.2025
value
vs
value
vs
value
vs
-5
x Δp x D** [l/h]
5
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