Definition Of Terms; Limited Use; Delivery Condition; Technical Data - GEM 612 Series Installation, Operating And Maintenance Instructions

3 Definition of terms
Working medium
The medium that flows through the diaphragm
valve.
4

Limited use

The GEMÜ 612 diaphragm valve is
w
designed for installation in piping
systems. It controls a flowing medium by
manual operation.
The valve may only be used providing
w
the product technical criteria are
complied with (see chapter 6

"Technical Data").

To avoid malfunction which could
w
cause injury or damage, do not paint the
bolts and plastic parts of the diaphragm
valve!
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 diaphragm material.
Operating temperature
Liquids max.
Steam max.
(dependent on diaphragm material)
Ambient conditions
Max. ambient temperature
MG DN
10
10 15
20
Kv values determined acc. to IEC 534 standard, inlet pressure 6 bar, ∆ p 1 bar, stainless steel valve body and soft elastomer diaphragm.
MG = diaphragm size
612_us
90° C
150° C
60° C
Kv values [m³/h]
DIN DIN 11850
Series 1
Code 0 Code 16
- 2.4
3.3 3.8
- -
18 / 32
WARNING
Use the diaphragm valve only for the
intended purpose!
The diaphragm valve must not
P
be used in explosion-endangered
zones unless expressly approved in
the contract documentation. This can
cause death or serious personal injury
Further, the manufacturer liability and
guarantee will be void.
Use the diaphragm valve only in
¬
accordance with the operating
conditions specified in the contract
documentation and in the installation,
operating and maintenance
instructions.
5 Delivery condition
The GEMÜ diaphragm valve is supplied as a
separately packed component.
Nominal Max. operating
MG
pressure [bar]
size
EPDM
DN
10
12
10
10
15
20
All pressures are gauge pressures. Operating pressure values were
determined with static operating pressure applied on one side of a
closed valve. Sealing at the valve seat and atmospheric sealing is
ensured for the given values.
Information on operating pressures applied on both sides and for
high purity media on request.
*Valve weight determined with valve body material code 34 and
connection code 60. MG = diaphragm size
DIN 11850 DIN 11850
Series 2 Series 3
Code 17 Code 18
2.4 2.4
3.8 3.8
- -
Valve weight*
[g]
PTFE
450
500
6
680
690
ASME BPE EN ISO
1127
Code 59 Code 60
2.2 3.3
2.2 4.0
3.8 -