Rifox WO-1111 User manual

Operating Manual
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08/2020 -Di. Subject to modifications
Model: 1111
Model: 1111-N
Model: 1112
Model: 1112-N
Float-Controlled Condensate Trap, PN 25
1 Safety instructions
1.1 Proper use
Any improper use, intervention in the design and deviation from the design data automatically lead to termination of the
warranty. The float-controlled condensate trap is designed for the discharge of condensate from steam, compressed air and
pressure gas systems. Any other usage is not permitted. The manufacturer is not liable for damage resulting from any other
usage. The user or operator bears the risk in this case. This also applies analogously to incorrect assembly, start-up, use and
maintenance.
1.2 Warnings and symbols
■Personal risk due to escaping operating medium because of pressure, temperature and weight. Failure to comply with
these warnings results in the risk of accidents.
■Follow the instructions in this operating manual.
■The operator must ensure that this operating manual and, if necessary, other relevant documents are available on site.
■Only trained or instructed personnel may be assigned to handling this equipment.
■Any mode of operation that may impair safety must be avoided.
2 General description and usage
2.1 Design of the condensate trap
Picture 1: Model WO-1111
Model WO-1111-N
Picture 2: Model EF-1112
Model EF-1112-N
1Housing cover 7Gasket
2Housing gasket 8Float control assembly
3Housing 9Supporting body assembly
4Control screw 10 Holding screw for float control assembly
5Gasket 11 Housing screws
6Screw plug 12 Capsule venting for screw in
1 2 3
4 5
6 7
8
9
10
11
12

Operating Manual
Breite: 170
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RIFOX - Hans Richter GmbH Spezialarmaturen Fon: [phone] - 0 Internet: www.rifox.de
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08/2020 -Di. Subject to modifications
1000
10000
0,1 1 10
Flow rate in kg/h
Pressure difference in bar (with reference to atmospheric pressure)
50000
25
1000
10000
0,1 1 10
Flow rate in kg/h
Pressure difference in bar (with reference to atmospheric pressure)
40000
25
2.2 Operation limits of housing material (Design)
For Model WO-1111 and EF-1112:
max. operating pressure (bar g) 25 23,2 20,8 17,2 14,8
max. operating temperature (°C) -10/20 100 200 300 400*
* only with screw material A4-70/ 1,4571/ 1.4104
For Model WO-1111-N and EF-1112-N:
max. operating pressure (bar g) 25 23,3 20,8 19,5
max. operating temperature (°C) 100 200 300 400
2.3 Function limit of control unit (for all four models)
Cross-section Max. line pressure in bar g / Steam Max. line pressure in bar g / Compressed air
20/190 12 / 22* 12 / 25*
20/340 8 / 14* 8 / 17
20/412 8 / 14* 8 / 17
Special design with oval float
2.4 Discharge capacity (for all four models, for hot condensate)
2.5 Function
■Due to the gravity the condensate flows downwards to the lowest point, which is the condensate trap housing. In the
lowest position of the float the outlet cross-section is close. Rising of the liquid level lifts the float and opens the outlet.
Condensate will be discharged through the upturned immersion tube. Decreasing condensate level closes the outlet again.
2.6 Compensation line
■In order to get proper function, the non-condensable gas must be able to leave the housing. Due to the vertical installation,
the non-condensable gas is able to leave the housing and flows into the steam/gas chamber above it, which has the same
pressure level. If the self-venting through the pipe must be extended, the control screw (4) can be replaced by a cutting ring
screw bolt and a compensation line can be installed leading upwards.
2.7 Automatic venting
■In the case of steam applications, automatic venting must be provided (vent jet).
2.8 Gastight under-level float control (only for gas applications)
■For gas applications, a gastight under-level float control is nearly exclusively used. Consult with Rifox, if necessary.
Picture 3 Picture 4
For Model WO-1111 and EF-1112 For Model WO-1111-N and EF-1112-N:
For the cold condensate the discharge capacity is
higher because of medium temperature and density.
For the hot condensate the discharge capacity is
lower because of medium temperature and density.

Operating Manual
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08/2020 -Di. Subject to modifications
3 Assembly
■The condensate trap has to be screwed into a pipeline between flanges.
■Remove transport caps from inlet and outlet.
■Fitting direction: according to Picture 1 and Picture 2.
■Supporting brackets: The weight of the condensate trap must be taken up by the supporting brackets, which are welded
onto the housing.
■To avoid downtimes, it is recommended to install stop valves with bypass to pipeline, both in front of and behind the con-
densate trap.
4 Start-Up
Shut off the housing on both sides during strength tests with PT pressure.
The float-controlled unit is only suitable up to PS pressure value or alternative PT value shown in brackets according name
plate.
The lower value is max. allowable pressure. A pressure test with design pressure (PT) will destroy the float.
The pressure build-up and heating-up of the housing should not take place abruptly. If leakage is detected after the first
inspection, the screws (4 / 6 / 10 / 11) can be fixed under consideration of the given torque moments, as given in Section
6.5. The screws can only be tightened on when the housing is unpressurized and at room temperature.
5 Observation and control
The function’s failure can be observed either as condensate blockage or as gas/ steam leakage.
■Condensate blockage can be determined by a): loosen the control screw (4) for a quarter rotation, while no condensate
leakage should occur; and by b): a surface thermometer on the housing for steam applications (if necessary, please consult
with Rifox).
■Gas / steam leakage: can be determined by an ultrasonic measuring device, and for steam applications by a surface
thermometer. In case of steam leakage, open the condensate trap according to Section 6.1. Make sure that float (8) can be
easily moved. If necessary, disassemble and clean the float control assembly (8). If damages/ wears are detected on parts or
on the sealing surface, the complete float control assembly (8) should be replaced.
6 Maintenance / Inspection
6.1 Opening the steam trap and dismantling the float control
■The steam trap must be depressurized. Shut off the system securely in
front of and behind the steam trap.
■Release any remaining pressure in the housing by loosening the control
screw (4) by only a quarter turn.
■Dismantle the steam trap from the pipeline system. Loosen the flange
connections and lift out of the pipeline carefully and place on the floor. At-
tention: The condensate trap weights from 46 kg up to 48 kg depending on
the connection sizes. Lifting device is required.
■Loosen the housing screws (12) evenly crosswise. Put down the housing
cover (1). Attention: the housing cover weights about 8kg.
■The float control is dismantled with a centering aid that is inserted in
the bushing that is provided with 2 slots. By turning counterclockwise (3-4
turns), the Holding screw (10) is screwed out of the control support body (9). The control is detached from the seat cone by
means of gentle blows with a hammer on the front end of centering aid.
■Screw out the Holding screw (10) completely.
■Remove float control assembly (8) through the cover opening.
■For removal of special float: Loosen, unscrew and remove the screws. See Picture 5.
Picture 5
Special
Float
Screws
Holding screw

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6.2 Disassembling, cleaning and assembling the float control (Picture 6)
■After removing the cotter pin (p), the rotary valve (v) can be simply pulled out
to the side.
■Clean the parts using, for example, benzine.
■Check the rotary valve (v) for wear along the sealing edge. If wear is detected,
the support body (b) together with the rotary valve (v) must be replaced. The
thorough leakage test must be carried out by Rifox.
■During assembly ensure that the notch in the rotary valve (v) points to the
punch mark on the support body (b) and the cotter pin (p) is inserted and secured
again carefully.
■It must be possible to move the float up and down easily by hand.
6.3 Installation of the float control unit and assemble the steam trap
■The complete float control assembly (8) is inserted into the conical housing seat with the support body. It must be ensured
that the tube is positioned vertically downwards.
■Screw in the Holding screw (10) into the control support body (b) and tighten with the centering aid described in Section
6.1.
■Check the housing gasket (2), replace it it is damaged.
■Put on the housing cover (1).
■Tighten the housing screws (12) evenly crosswise. Tightening torque according to Section 6.5.
6.4 Care and maintenance
■In the case of a great risk of dirt accumulation, the housing, when it is depressurized, should be rinsed thoroughly from
time to time. If necessary, the float control assembly (8) should also be checked according to Section 6.2.
■The dirt, which has been accumulated in the housing, can be removed away by screwing off the screw plug (6).
■For special applications, it is advisable to install a separate upstream strainer.
■The float control assembly (8) usually does not to be special maintained. The maintenance depends primarily on the wear
resistance of the valve gasket. See Section 6.1 and 6.2.
6.5 Tightening torque
bpv
Picture 6
Position Part Name
1111-1112 1111N-1112N
Tightening Torque (Nm) acc. to gasket material
soft iron PTFE-Special PTFE-Special 1.4571
4Control screw for WO-1111 and WO-1111-N, G1/2” 90 80 80 120
Control screw for EF-1112 and EF-1112-N, G1/4” 40 25 28 50
6 Screw plug 90 80 80 120
10 Holding screw without gasket
280
11 Housing screw 90 60 60 100

Operating Manual
Breite: 170
Höhe:8,15
Oben Links
278,5 20
RIFOX - Hans Richter GmbH Spezialarmaturen Fon: [phone] - 0 Internet: www.rifox.de
Bertha-von-Suttner-Str. 9 D-28207 Bremen Fax: [phone] - 40 Email: [email protected]
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08/2020 -Di. Subject to modifications
6.6 Spare parts
Only original spare parts can be used.
Picture 7: Model WO-1111
Model WO-1111-N
Picture 8: Model EF-1112
Model EF-1112-N
Pos. Part Name Model: 1111 / 1112 Model 1111-N / 1112-N
1Housing cover P265GH (P250GH; P235GH-TC1) 1.4571
2Housing gasket Soft iron / PTFE PTFE / 1.4571
3Housing P235GH-TC1/P250GH/P265GH 1.4571
4Control screw G 1/2" (BSP) - 5.8
G 1/4" ( BSP) - 1.4104
G 1/2“ (BSP) - A4
G 1/4“ ( BSP) - 1.4571
5Gasket Soft iron / PTFE PTFE / 1.4571
6Screw plug DIN 910 - 5.8 - G 1/2" (BSP) DIN 910 - A4 - G 1/2“ (BSP)
7Gasket Soft iron / PTFE PTFE / 1.4571
8Float control assembly 1.4112/ 1.4057/ 1.4301
or complete 1.4571 1.4571
9Supporting body assembly 1.4112/ 1.4057/ 1.4301
or complete 1.4571 1.4571
10 Holding screw for float control assembly 1.4571 1.4571
11 Housing screws DIN 939 / ISO 4032 - A4-70/A4 - M 16 DIN 939 / ISO 4032 - A4-70/A4 - M 16
12 Capsule venting for screw in 1.4104, 1.4571, 1.4301 1.4104, 1.4571, 1.4301
7 Conformity assessment
The pressure equipment described is a pressure-keeping component in accordance with the Pressure Vessel Directive
2014/68/EU.
DN50 and DN65: Conformity verified through the identifying mark: CE 0525.
A detailed declaration of conformity assessment according to PED is available as separate document. Please request if
necessary, if not attached.
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