Richter BVAP/F Series Ball Valves (ASME) - Manual (Page 4)

Series BVA/F, BVAP/F ,
ASME Page 4
9520-085-en_USA Revision 10
TM 8361 Edition 10/2011
Options :
Lever elevation depending on requirements.
Limit switches
for remote monitoring of hand and remote-
activated ball valves.
Lockable hand lever
to prevent unauthorised operation.
B7M screws
Set rings TFM, PTFE carbon
Hand gear
Al
2
O
3
ball or ball/stem unit with additional relief
bore
1.1 Name plate and body
identification
The stainless steel name plate is undetachably 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:
Body identification :
The shell bears the following information:
Nominal size
Rated pressure
Body material
Manufacturer's identification
Melt number/Foundry identification
Cast date
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 7, Flange connection valve /
pipe is leaking.
The following tightening torques are recommended:
Packing screws
Thighten packing gland follower 503 until spring gland
follower 502 is in contact without any gap. With 3", 4"
and 6" they are 2 spring gland follower 502.
Attention:
Excessive tightening of the packing nuts can result in
a damage of the plastic lining. Tighten only as much
as necessary, to obtain stem seal tightness.
Pipe screws
Flanges
nom. size
Screws Tightening torque
[inch] [ASME] [Nm] [in-lbs]
1“ 4 x ½“ 8 70
1½“ 4 x ½“ 15 135
2“ 4 x K“ 25 220
3“ 4 x K“ 45 400
4“ 8 x K“ 35 310
6“ 8 x ¾“ 80 710
Body screws
Nom. size Screws Tightening torque
[inch] [ISO/DIN] [in-lbs] [Nm]
1“ 4 x M10 310 35
1½“ 4 x M16 400 45
2“ 4 x M16 400 45
3“ 4 x M16 400 40
4“ 6 x M16 530 60
6“ 6 x M16 710 80