Defi Nition Of Terms; Intended Area Of Use; Condition As Supplied To Customer; Technical Data - Gemü 536 Original Einbau- Und Montageanleitung

3 Definition of terms
Working medium
The medium that flows through the valve.
Control medium
The medium whose increasing or
decreasing pressure causes the valve to be
actuated and operated.
Control function
The possible actuation functions of the
valve.
4

Intended area of use

The GEMÜ 536 2/2-way globe valve

is designed for installation in piping
systems. It controls a fl owing medium
by being closed or opened by a control
medium.
The valve may only be used providing

the product technical criteria are
complied with (see chapter 6

"Technical data").

6 Technical data
Working medium
Corrosive, inert, gaseous and liquid media which have no
negative impact on the physical and chemical properties of the
body and seal material.
Max. perm. pressure of working medium
Media temperature
Max. permissible viscosity
Other versions for lower/higher temperatures and higher viscosities
on request.
Maximum permissible seat leakage rate / Open-Closed-Valve
Seat seal
PTFE
Maximum permissible seat leakage class / Control valve
Seat seal
PTFE
Pressure / temperature correlation for globe valve bodies
Connection Material
code code
8
11
39
8
39
* The valves can be used down to -10 °C
see table
-10 °C to 180 °C
600 mm²/s (cSt)
Standard
DIN EN 12266-1
Standard
DIN EN 60534-4
Max. allowable operating pressures in bar at temperature in °C *
RT
37 16.0
37 40.0
37 19.0
90 16.0
90 17.2
RT = room temperature
The valve is also available as a control

valve.
Use the valve only for the intended
purpose!
® Otherwise the manufacturer liability and
guarantee will be void.
Use the valve only in accordance with
G
the operating conditions specifi ed in
the contract documentation and in the
installation, operating and maintenance
instructions.
The valve must not be used in
G
explosion-endangered zones.
5 Condition as supplied to
customer
The GEMÜ valve is supplied as a separately
packed component.
Control medium
Inert gases
Max. perm. temperature of control medium
Max. control pressure
Filling volume
Actuator size 3
Actuator size 4
Ambient conditions
Ambient temperature
Test procedure Leakage rate
P12
Test procedure Leakage rate
1
100 150
16.0 14.5
40.0 36.3
16.0 14.8
16.0 15.5
16.0 14.8
All pressures are gauge pressures.
19 / 32
WARNING
max. 60 °C
Test medium
A air
Test medium
VI air
200 250
13.4 12.7
33.7 31.8
13.6 12.0
14.7 13.9
13.9 12.1
536
60 °C
7 bar
2.5 dm³
6.8 dm³
300
11.8
29.7
10.2
11.2
10.2