30 Return to Table of Contents V20.1
✓Relief accessory for AMT-PRC-**-L relief covers
✓Adjustable relief setting from 150 psi to 5000 psi
✓Standard screw adjustment for relief setting
✓Pressure at T is directly additive to relief setting
Applications
High/Low Pressure Relief Valve
This D03 relief accessory can be combined with an AMT-PRC-**-L
to create a high/low relief valve with two independent relief settings.
Using a standard directional control with flow from P to A in the de-
energized condition will select the relief setting of the cover.
Energizing the pilot valve will switch the relief setting to the
accessory.
Note: The relief setting of the accessory MUST be lower than the
setting of the cover.
The Y pilot can be connected to the B port of the logic valve, but a
separate drain connection is preferred. This configuration uses a 1:1
ratio logic valve.
D03 SANDWICH RELIEF
ACCESSORY
NFPA D03, CETOP3
5000 PSI
Above: AT option
Below: BT option
31 Return to Table of Contents V20.1
BL= Include bolts at extra
charge
Blank= Customer will supply
bolts
General Layout
AMT-D03-Relief-AT AMT-D03-Relief-BT
Order Code
To order the D03 relief accessory individually, use the following code:
AMT-D03-Relief-**
To order the D03 relief accessory and the DIN cover together, use the code below:
AMT-PRC-**-HL*-**-**
Note: The D03 accessory & DIN cover can be ordered separately. This code is for convenience only.
D03 Interface
Sandwich accessory with Relief
function
Almo
Manifold
& Tool
AT= Relief function from
A to T
BT= Relief function from
B to T
High/Low Relief Cover. Choose A or B style
A= A to T D03 relief accessory
B= B to T D03 relief accessory
Size: 16, 25, 32, or 40mm
Poppet Relief
Cover
Almo
Manifold
& Tool