Page 1
Installation and Operating
Instructions for Ashcroft
®
Pressure Volume
Controllers, Models
AVC-1000 and AVC-3000
INSTALLATION (see figure)
Step 1 –
Install a valve to the vent port on the
pressure balance valve assembly.
Step 2 –
Install a valve to the inlet port on the
pressure balance valve assembly.
Step 3 –
Install a tee fitting to the rear of the
AVC unit.
Step 4 –
Connect a pressure standard, for example a dial gauge or digital indicator to
one side of the tee. To the other side
of the tee connect the device to be
calibrated or tested.
NOTE (Installation) –
All plumbing connections are made to
1
⁄8 NPTF ports.
OPERATION
Step 1 –
Open the pressure balance valve.
Step 2 –
Open the vent valve.
Step 3 –
Tu r
n the control knob to approximately
midrange. This will allow for increase
and decrease of system pressure.
Alternatively, the starting position of the
knob may be at the counterclockwise
or clockwise stop. This will allow for
maximum pressure increase (knob at
the counterclockwise stop) or maximum
pressure decrease (knob at clockwise
stop).
Step 4 –
Close the vent valve.
Step 5 –
Open the inlet valv
e to provide pressure
to approximately the desired pressure
level.
Step 6 –
When the appropriate pressure has
been achieved, close the inlet v
alve.
DEVICE
UNDER
TEST
VENT VALVE
ATMOSPHERE
CONTROL KNOB
Step 7 –
Close pressure balance valve.
Step 8 –
Tu r n control knob clockwise to increase
system pressure or countercloc
decrease system pressure.
NOTE (Operation) –
During operation the pressure balance
v
alve will automatically open if the pressure across the piston exceeds safe
levels. This is factory set at a nominal
pressure differential of 150 psi.
PRESSURE
MEASURING
DEVICE
INLET VALVE OR
REGULATOR
REGULATOR
PRESSURE
AC
BALANCE
VALVE
kwise to
PRESSURE
SOURCE
All rights reserved. All sales subject to standard terms and conditions of sale. I&M002-10054-11/00 (A-250-2974B) 1CAMR 2/07
Find Quality Products Online at: sales@GlobalTestSupply.com
www.GlobalTestSupply.com
Page 2
Model AVC-1000 and 3000 Pressure Volume Controllers
PARTS LIST
ITEM QTY. PART
NO. PER ASSY. NUMBER DESCRIPTION
11 Final Assembly
2 1 603X002-01 Actuator (1000 psi unit)
2a 1 603X002-02 Actuator (3000 psi unit)
3 1 603X003-01 Lead Screw (1000 psi unit)
3a 1 603X003-02 Lead Screw (3000 psi unit)
4 1 603X004-01 Washer, Actuator
5 1 603X005-01 Body
6 1 603X006-01 Valve Body
7 1 603X007-01 End Cap
8 2 603X008-01 Guide Screw
9 3** 854X050-01 Pipe Plug
10 2** 605X003-09 Socket Head Screw (valve)
11 8 605X004-05 Socket Head Screw
12 1 605X005-01 Washer
13 2 607A001-02 O-Ring
14 3 607X001-04 O-Ring
15 3 607X001-05 O-Ring
16 1* 607X001-06 O-Ring
17 1 607X001-08 O-Ring (1000 psi unit)
17a 1 607X001-07 O-Ring (3000 psi unIt)
18 1 607A002-02 Back-up Ring
19 2 607X002-05 Back-up Ring
20 1 607X006-01 Retaining Ring
21 1 609X005-01 Spool Valve
22 1 609X006-01 Retainer Valve
23 1 614X003-01 Piston (1000 psi unit)
23a 1 614X003-02 Piston (3000 psi unit)
24 1 618X004-01 Label, Valve Control
25 1 618X005-03 Label (1000 psi unit)
25a 1 618X005-04 Label (3000 psi unit)
26 1 619X001-02 Knob, Adjustment
27 1 619X002-01 Knob, Balance Valve
28 1 620X001-01 Bearing, Ball Thrust
29 1** 617X006-01 Mounting Kit, Panel
30 1** 621X001-02 Table Mount Bracket(optional)
31 1 610X002-01 Sleeve (3000 psi unit)
**Quantity is 2 in model AVC-3000.
**Not shown.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
All rights reserved. All sales subject to standard terms and conditions of sale. I&M002-10054-11/00 (A-250-2974B) 1CAMR 2/07
Find Quality Products Online at: sales@GlobalTestSupply.com
www.GlobalTestSupply.com
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