
www.mySSP.com CPCPAMI-20B
CPA Series Check Valve
Maintenance Instrucons
Disassembly
All Kits Seal Kit Spring Kit
Maintenance
Instrucons O-Ring Spring
Label
Contents
Body
Locking
Screw
Poppet
Insert
Lock
Screw Spring
Adjusng
Screw
1. Loosen the locking screw 1/4 turn.
• 4CPA - 5/32 HEX KEY
• 8CPA - 5/16 HEX KEY
6. Discard components that will be replaced.
7. Make sure all components are clean.
2. Slide the hex wrench down into
the adjusting screw and loosen.
(Locking screw should end up ush with body face)
5.Turn the adjusting screw clockwise to
increase the cracking pressure; counter-
clockwise to decrease cracking pressure.
6. Slide the hex wrench back into the locking
screw only and turn clockwise to lock valve.
4. Tighten the insert lock screw
according to the table.
3.
3.
2.
4.
5.
7. Test product prior to installation in the system.
8. Attach the new label to the body hex, as nessessary.
Valve Series Valve Material Torque Value
in·lbs (N·m)
4CPA Brass 45 (5.1)
All Other 85 (9.6)
8CPA Brass 100 (11.3)
All Other 300 (33.9)
Reassembly
1. Lubricate the O-Ring and install it on the insert.
(Lubricate with system compatible lubricant)
WARNING
If the valve is disconnected from
a system, it must be depressurized,
cycled, and purged.
CAUTION
Care should be taken to not
scratch or damage sealing surfaces.
Insert with
O-Ring
• 4CPA - 3/16 HEX KEY
• 8CPA - 3/8 HEX KEY