
Operating Manual
RIFOX - Hans Richter GmbH Spezialarmaturen Fon: +49 (0) 421 499 75 - 0 Internet: www.rifox.de
Bertha-von-Suttner
-Str
.
9
D-28207
Bremen
F
ax:
+49
(0)
421
499
75
-
40
Email:
[email protected]Page 4 of 6
04/2021 -Di. Subject to modifications
6.1.2 Float control unit with oval float
■The steam trap has to 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.
Attention: The condensate trap weights from 170up to 200 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 16 kg.
■Loosen the screws between float and fork by using a flat ring spanner.
■Remove the screws and the spring washer.
■Turn the oval float inside the housing and lift it out vertically.
■If only the float has to be replaced, continue with section 6.3.2 point 3.
■The supporting body with fork is dismantled with a centering aid that is inserted in the bushing provided with 2 slots. By
turning counterclockwise (3-4 turns), the bushing 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 bushing completely.
■Remove supporting body with fork through the cover opening.
6.2 Disassembling, cleaning and assembling the float control (Picture 6)
■After removing the cotter pin (p), the rotary valve (v) can be pulled out to the
side easily.
■Clean the parts using petrol for example.
■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) has to be replaced. The
thorough leakage test has to 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.
■Ensure the float can be moved up and down easily by hand.
6.3 Installation of the float control unit and assemble the steam trap
6.3.1 Float control unit with spherical float
■The complete float control assembly (8) is inserted into the conical housing seat with the support body. Ensure the tube is
positioned vertically downwards.
■Screw in the bushing into the control support body (b) and tighten with the centering aid described in Section 6.1.
■Check the housing gasket (2), replace if it is damaged.
■Put on the housing cover (1).
■Tighten the housing screws (12) evenly crosswise. Tightening torque according to Section 6.5.
6.3.2 Float control unit with oval float
■The supporting body, float fork and rotary slide valve assembly is inserted into the conical housing seat with the support
body. Ensure the tube is positioned vertically downwards.
■Screw in the bushing into the control support body (b) and tighten with the centering aid described in Section 6.1.
■Insert the oval float vertically into the housing. Turn the oval float inside the housing to have the connection points of the
float fork and the float are aligned. The filling nipple of the oval float should point towards the housing opening.
■Attach the connecting elements (screws and spring washer) by hand and tighten with a flat ring spanner.
■Check the housing gasket (2), replace if it is damaged.
■Put on the housing cover (1).
■Tighten the housing screws (12) evenly crosswise. Tightening torque according to Section 6.5.
Picture 6