Richter HVR Series Bellows-Sealed Valves - Manual (Page 4)

Installation and Operating Manual
Series HV, HVR
9520-050-en Revision 01
TM 6128 MPE/Wm Page 4 Edition 04/2005
1.2 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:
No CE marking is permissible for the sizes 15, 20 and
25; the name plate therefore has no CE marking.
Example: Name plate for control data (HVR)
If heavy-duty bellows are installed, another name
plate indicates this:
HD - BVA = Heavy-duty bellows with support rings
of stainless steel
HD - BKo = Heavy-duty bellows with support rings
of PTFE/carbon
No CE marking is permissible for the sizes 15, 20 and
25; the name plate therefore has no CE marking.
Body identification :
The following are visible on the body according to DIN
EN 19 and AD 2000 A4:
Nominal size
Rated pressure
Body material
Manufacturer's identification
Melt number/Foundry identification
Foundry date
Arrow for direction of flow
1.3 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 7, Flange connection valve /
pipe is leaking.
The following tightening torques are recommended.
Pipe screws, flanges to ISO/DIN or flanges ISO/DIN
drilled to ASME Class 150
Flange nom.
size Screws
Tightening
torque
[mm] [inch] [ISO/DIN] [Nm]
15 ½“ 4 x M12 12
20 ¾“ 4 x M12 12
25 1 4 x M12 12
40 1½ 4 x M16 22
50 2 4 x M16 30
65 -- 4 x M16 40
80 3 8 x M16 25
100 4 8 x M16 30
Pipe screws, flanges to ASME Class 150
Flange nom.
size
Screws Tightening
torque
[mm] [inch] [ASME] [in-lbs]
25 1 4 x ½“ 106
40 1½ 4 x M“ 133
50 2 4 x M“ 221
80 3 4 x M“ 354
100 4 8 x M“ 266
Cover screws
Flange
nom. size
[mm] [inch]
Screws
[ISO/DIN]
Tightening
torque
[Nm]
Tightening
torque
[in-lbs]
15 -- 4 x M10 30 266
20 -- 4 x M10 30 266
25 1 4 x M12 50 442
40 1½ 4 x M12 50 442
50 2 4 x M12 50 442
65 -- 4 x M12 50 442
80 3 8 x M12 50 442
100 4 8 x M12 50 442