Series
BVA/F, BVAP/F to ASME
Page
9
9520-036-en
Revision 19
TM 10477
Edition 05/2022
6
Installation
♦
Examine valve for in-transit damage, damaged ball
valves must not be installed.
♦
Before installation the valve and the connecting
pipe must be carefully cleaned to remove any dirt,
especially hard foreign matter.
♦
During installation, pay attention to the correct
tightening torque, aligned pipes and tension-free
assembly.
Ensure that a remotely actuated actuator
cannot be accidentally switched on.
6.1 Flange caps and
gaskets
♦
Leave protective caps on the flanges until just prior
to installation.
Where there is a particularly high risk of damage to
the plastic sealing surfaces, e.g. if the mating flanges
are made of metal or enamel, PTFE-lined gaskets
with a metal inlay should be used. These gaskets are
available as special accessories in the Richter range.
6.2 Grounding
The valve must be grounded. This can be achieved in
the simplest way via the pipe screws using tooth lock
washers. One pipe screw per flange is underlaid with
toothed disks.
At the customer's request a setscrew M6 with a hex.
nut and washer will be provided at each flange as an
additional grounding connection.
Otherwise grounding must be ensured by different
measures e.g. a cable link.
The ball/stem unit
201
and stem
202
are grounded
using a grounding spring washer
557
.
6.3 Direction of flow and
installation position
Installation is independent of the direction of flow.
Any fitting position can be chosen.
Otherwise, it is marked by a direction arrow on the ball
valve, in the case of an additional relief bore in the
ball/stem unit or the ceramic ball.
Fig. 1
Al
2
O
3
-ball in closed position
Fig. 2
ball/stem unit in closed position
6.4 Test pressure
The test pressure PT of a valve must not exceed the
value of 1.5 x PS(PN) as per the identification of the
valve.
