Issue 1
4-2 Hydraulic pressure operation (PV 623)
K0457 - [EN] English
4.3 Release the
pressure
To release all the pressure in this instrument:
To control a change in pressure conditions (for example, to go
to or through another test pressure) use the volume adjuster
wheel (Section 1.4.5).
4.4 Attach/Remove
the device under test
WARNING: Pressurized gases and fluids are dangerous.
Before you attach or disconnect pressure equipment,
safely release all the pressure.
Caution: To prevent damage to the instrument, do not
let dirt get into the pressure mechanism. Before you
attach equipment, make sure it is clean.
The test port uses “Quick fit” pressure adaptors; see
Section 1.5 (Accessories). These are easy to remove, change
and install.
4.4.1 Procedure (to attach)
Step
Procedure
1.
Open the refill valve counterclockwise (1 turn).
2.
Open the pressure release valve counterclockwise
(1 turn).
3.
Attach the adaptor to the device; if
necessary use one of the alternative
adaptors in Section 1.5 (Accessories),
then tighten to the applicable torque.
4.
Re-attach the adaptor to the test port and
tighten it until it is hand tight only.
Step
Procedure
Step
Procedure
1.
Remove the adaptor
2.
Use an applicable seal for the pressure
connection:
a.
NPT type: Use an applicable sealant
on the thread.
b.
BSP (parallel) type: We recommend a
bonded seal at the bottom.
c.
BSP (parallel) type, 100 bar
(1500 psi) or less: a bonded seal at
the top is permitted.
1
4
3
2
NPT
a.
c.
(G) / BSPP
P
≤
100 bar
b.
(G) / BSPP
