Series
BVA/F, BVAP/F to ASME
Page
4
9520-036-en
Revision 19
TM 10477
Edition 05/2022
Options :
♦
Lever elevation depending on requirements
♦
Limit switches for remote monitoring of hand and
remote-activated ball valves
♦
B7M screws
♦
Seat rings TFM, TFE carbon
♦
Hand gear
♦
Al
2
O
3
ball or ball/stem unit with additional relief
bore
1.1 Type plate, CE and body
markings
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 with 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
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.
The following tightening torques are recommended.
Packing screws
Tighten packing gland follower
503
until spring gland
follower
502
is in contact without any gap. With 4" and
6" there are 2 spring gland follower
502
.
Caution!
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
Flange
Nominal
size
screws
Tightening
torque
[inch]
[ASME]
[in-lbs]
[Nm]
1“
4 x ½“
70
8
1½“
4 x ½“
135
15
2“
4 x ⅝“
220
25
3“
4 x ⅝“
400
45
4“
8 x ⅝“
310
35
6“
8 x ¾“
710
80
Body screws
Nominal
size
screws
Tightening torque
[inch]
[ISO/DIN]
[in-lbs]
[Nm]
1“, 1½“ red.
4 x M10
310
35
2“
4 x M16
400
45
3“ red.
4 x M16
400
40
4“ red.
6 x M16
530
60
6“ red.
6 x M16
710
80
1.3 Flow rate value
Nominal size
kv
100
Cv
[inch]
[m
3
/h]
[US gpm]
1“
60
70
1½“ red.
40
46
2“
280
326
3“ red.
280
326
4“ red.
587
684
6“ red.
1250
1456
