
1. After removing the cotter pin (i), the rotary valve (d)
is simply pulled out to the side.
2. Clean the parts using, for example, benzine.
3. Check the rotary valve (d) for wear along the sealing
edge. If wear is detected, the support body (c)
together with the rotary valve (d) must be replaced.
A precise leak test must be carried out by Rifox.
4. During assembly ensure that the notch in the rotary
valve (d) points to the punch mark on the support body (c)
and the cotter pin (i) is inserted and secured again
carefully.
5. The float must be able to move up and down
without resistance.
4.3 Installing the control and assembling
1. The complete float control is inserted into the conical housing seat with the support body (c ) . Ensure
here that the pipe (e) shows upward.
2. The support body (c) is fixed a bush by screwing with a tightening torque appr. 50 Nm.
Tighten torque: 70 Nm.
3. Check the housing gasket (2) and replace necessary.
4. Assembly of housing as shown in figure 1 and acc. to paragraph 3.
5. Tighten housing bolts cosswise.
4.4 Care and maintenance, spare parts
In the case of a great risk of dirt accumulation, the housing should be rinsed thoroughly from time to time, but while
depressurized. If necessary, the float control should also be checked according to point 4.2.
The float control usually does not require special care; maintenance primarily depends on the wear resistance of the
valve seal. See points 4.1 - 4.3 in this connection.
Spare parts: Only original spare parts may be used.
5 Conformity declaration CE
We declare conformity with Directive 97/23/EC of 29.05.97 for the following pressure equipment:
Feed control unit type WO-1210 ZR
The pressure equipment described is a pressure-keeping component in accordance with Article 1, 2.1.4.
Applied conformity assessment procedure according to Annex III:
cat. 2, fluid group 1, module D1
Designated office: Lloyd’s Register Quality Assurance GmbH, Mönkebergstr. 27, D-20095 Hamburg,
Germany.Identification No. 0525
In the case that the equipment is modified without our approval, this declaration shall no longer be valid.
Rifox-Hans Richter GmbH
Special Fittings
01/2013-Di. Page 3 of 3 Subject to modifications