R
1. Application
1.1 Designated use
Use with pressure gas cylinders for compressed high purity gases, gases dissolved
under pressure and liquid gases to reduce the cylinder pressure and maintain an as
constant as possible outlet pressure.
1.2 Non-designated use
Do not use pressure regulator for gases in the liquid phase.
Do not use for unsuitable gas types.
Do not use pressure regulator in operating conditions, that it was not designed for.
Do not use at temperatures below -30°C or above +60°C.
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The system has to be used according to these instructions for use and especially the
safety instructions!
5.2 Pressure regulators have always to be protected against damage (visual
inspection at regular intervals).
5.3 The adjustment of the relief valve (4) must not be altered!
5.4 Ensure perfect condition of seals, sealing surfaces and pressure gauges.
5.5 In case of malfunctions, e. g. an increase of the outlet pressure during the
supply, or in case of leakage versus atmosphere or a defect pressure gauge, shut
down the upstream gas supply and take the pressure regulator out of operation.
6. Shut-down
6.1 For longer interruptions or end of work:
Close the gas cylinder valve (1) first by releasing the hand knob (6) to
depressurize the cylinder pressure regulator.
6.2 Before disassembly purge the regulator (where applicable) and make sure that
pressure gauges (3) and (5) display zero pressure.
Contents
1. Application
1.1 Designated use
1
1.2 Non-designated use
1
1.3 Technical data
2
2. Safety instruction
2
3. Labelling
2
4. Start-up
3
5. Operation and maintenance
3
6. Shut-down
4
7. Repair
4
8. Dimensions
4
page
FE 121
8. Dimensions
Max. inlet pressure
Max. outlet pressure
Body
Diaphragm
Hastelloy C 276
Flow rate
Materials
Weight
Outlet pressure connection
Inlet pressure connection
¼ - 18 NPT inside
2,1 kg
SS 316 L
DIN 477, acc. to gas type (other connections on request)
1.3 Technical data
Cone or seat sealing
25 bar max.
0,05 - 1,5 bar (higher pressures on request)
acc. to type 0,03 - 20 m³/h, in standard conditions
PCTFE
FE 121
118
ca. 115
100
59
122
1/4”- 18 NPT
P
H
P
V
1/4”- 18 NPT
!
7. Repair
7.1 Repairs may only be carried out
by expert
persons.
7.2 Only original spare parts must be used. The materials have been adapted to the
gas type in each instance. So always specifiy the gas type
7.3 In case of independent repairs, the use of non-original spare parts or changes on
the side of the user or a third party without the approval of the manufacturer,
any form of liability for resulting damages will expire as well as the
manufacturers warranty.
7.4 After being repaired, the pressure regulator must be checked with respect to
proper function, leak-tightness and cleanliness of the gas-wetted surfaces.When
the system is used again, a sufficient purging operation must be carried out first.
in authorized repair workshops
R
spectrocem
Instructions for use
FE 121
Pressure regulator for special gases
GES_FE121_Edition 0211
Änderungen vorbehalten
© Spectron Gas Control Systems GmbH
