42/64 Assembly
Bosch Rexroth AG
, Accumulator shut-off block type ABZSS, 0532VAW, RE 50129-B/02.19
7.4 Pressure relief valve assembly
At accumulator shut-off blocks type 0532VAW, the pressure relief valve may be
supplied or ordered separately and has to be assembled prior to commissioning.
Assembly of the pressure relief valve may only be carried out by an expert. See
chapter 2.4 "Qualification of personnel".
For assembly of the pressure relief valve, the following work steps have to be
performed:
▶
Remove the protective cover of the pressure relief valve.
▶
Remove the single or two seal rings from the protective cover.
▶
If two seal ring are enclosed to the pressure relief valve, the smaller seal ring has
to be clamped into the larger.
▶
Insert the seal ring or the seal ring combination into the mounting cavity. Ensure
a concentric position in the mounting cavity and contact over the entire surface.
▶
Screw in the pressure relief valve and tighten it with the tightening torque
specified in Table 8 "Tightening torque dependent on pressure relief valve type
and size".
Table 8: Tightening torque dependent on pressure relief valve type and size
Type 0532VAW
Pressure rating
up to 330 bar
70 + 5 Nm
1)
1)
Tighten the oiled screws with a torque-controlled tool of
accuracy class ± 10%.
▶
Attach a sealing at the pressure relief valve.
