DH Instruments OIL INTENSIFIER SYSTEM User manual

Oil Intensifier System
P/N 401746
Instruction Sheet
1. SUPPLY connection to OPG1 or MPG1 TEST Port (DH500) 5. INTENSIFIER SHUTOFF valve
2. TEST connection to PG7302 (DH500) 6. TEST connection to Device Under Test (DUT)
3. Intensifier
4. LOW PRESSURE SHUTOFF valve 7. Safety Head with 120 MPa (17 500 psi) Rupture Disc and Muffler
DESCRIPTION
The Oil Intensifier System (OIS) is intended to generate
pressure up to 500 MPa (75 000 psi) using an OPG1 or
MPG1 (whose maximum pressure is 200 MPa (30 000 psi)).
The OIS includes a 5:1 intensifier. The intensifier is used
only when necessary to generate pressure > 200 MPa
(30 000 psi).
INSTALLATION
nPosition the OIS between the OPG1 or MPG1 and
the PG7302 with the PG7302 to the left.
oUsing a DH500 coned and threaded tube, connect
the OPG1 or MPG1 TEST port to the OIS SUPPLY
port (1).
pUsing a DH500 coned and threaded tube or two
tubes and a tee, connect the PG7302 TEST port to
the OIS lateral TEST port (2).
Operation: Intensifier Not in Use (Pressure
≤200 MPa (30 000 psi))
nOpen LOW PRESSURE SHUTOFF valve (4) and close
INTENSIFIER SHUTOFF valve (5). In this condition,
OPG1 or MPG1 generates pressure straight through
the Intensifier System, by passing the intensifier.
oPlug TEST port (6) if it is not being used.
Operation: Using Intensifier (Pressure > 200 MPa
(30 000 psi))
OPG1 or MPG1 generates and adjusts pressure up to
200 MPa (30 000 psi). Generally, the OIS intensifier is
used only when running tests that include pressures
greater than 200 MPa (30 000 psi). The OIS may be
switched into and out of use under pressure.
nWhen running tests that include pressures above
200 MPa (30 000 psi), connect the device under test
(DUT) to the upper TEST connection (6) of the OIS.
oSet pressures under 100 MPa (15 000 psi) using the
OPG1 or MPG1, without the intensifier.
pTo switch in the intensifier, first close the LOW
PRESSURE SHUTOFF valve (4), then open the
INTENSIFIER SHUTOFF valve (5). In this condition the
OPG1 or MPG1 pressure is shut off from the PG7302
and is applied to the low side of the intensifier.
Increasing pressure on the low side of the intensifier
results in pressure changes five times greater on the
high side (PG7302 side) of the intensifier.
qUse the OPG1 or MPG1 to generate and adjust
pressure as necessary to set test points and float the
PG7302 piston.

OPG1 and PG7302 are trademarks, registered and otherwise, of DH Instruments, Inc.
Document 560035d 070119
DH Instruments, Inc.
4765 East Beautiful Lane
Phoenix AZ 85044-5318
USA
Tel [phone]
Fax [phone]
[email protected]
www.dhinstruments.com
rBefore switching out the intensifier, be sure that the
PG7302 piston is fully down (LSTOP) as the pressure
may change abruptly during the switching procedure.
If possible, switch out the intensifier at the same
pressure as it was switched in so that its pistons are
back to the start position. To switch out the
intensifier, first close the INTENSIFIER SHUTOFF
valve (5) and then open the LOW PRESSURE
SHUTOFF valve (4).
Operation: Returning the Intensifier Pistons
to Start Position
If the intensifier runs out of stroke towards the high side,
adjusting the pressure on the intensifier's low side no longer
affects the pressure on the high side. This procedure allows
the intensifier pistons to be returned to their start position. It
is only necessary to use this procedure if the intensifier
pistons have become positioned near the end of stroke and
cannot be returned naturally by the high pressure.
nLoad the entire mass set on the PG7302.
oClose the OPG1 or MPG1 EXHAUST valve. Close
the INTENSIFIER SHUTOFF valve (5). Open the
LOW PRESSURE SHUTOFF valve (4).
pUsing the OPG1 or MPG1, generate about 70 MPa
(10 000 psi).
qClose the LOW PRESSURE SHUTOFF valve (4).
Open the OPG1 or MPG1 EXHAUST valve.
rOpen the INTENSIFIER SHUTOFF valve (5).
If pressure on the high side of the intensifier returns
to zero when the INTENSIFIER SHUTOFF valve is
opened, the intensifier is not at the start position.
Repeat the process until the high side of the
intensifier holds pressure.
The Oil Intensifier System is equipped with a pressure rupture disc on its low pressure circuit. (See schematic
reference 7). The disc ruptures permanently at 120 MPa (17 500 psi). Once ruptured, the disc must be replaced.