Richter RV Series Check Valves - Manual (Page 3)

Series RV
Page 3
9550-070-en Revision 01
TM 6751 Edition 04/2007
1.1 Name plate, CE and body
markings
The stainless steel name plate is firmly riveted to the
body.
If the operator attaches his identification, it must be
ensured that the valve matches the application in
question.
Example of name plate with CE marking:
Body identification :
The following are visible on the body according to DIN
EN 19 and AD 2000 A4:
Flange nom. size [mm] [inch]
Rated pressure
Body material
Manufacturer's identification
Melt number/Foundry identification
Cast date
Arrow for direction of flow
1.2 Tightening torques
All screws greased, tighten in diametrically opposite
sequence!
The tightening torques for pipe screws and body
screws mentioned must not be exceeded. For an
exception, see Section 8, flange connection valve /
pipe is leaking.
Pipe screws
The following tightening torques are recommended.
Flange
nom. size
Screws
Tightening
torque
[mm] [ISO/DIN] [Nm]
150 8 x M20 55
200 8 x M24 75
Body screws
Flange
nom.
Screws
Tightening
torque
[mm] [ISO/DIN] [Nm]
150 8 x M20 70
200 8 x M20 70
1.3 Pressure/temperature diagram
When used in the minus temperature range,
the regulations applicable in the country in
question must be observed.