CPA Series One-Piece, Pipe Ended, Adjustable
DISASSEMBLY
1. Place valve body in vise. Loosen locking screw and adjusting screw from outlet side to relieve spring tension. Use 5/32 in. hex key for 4CPA and
5/16 in. hex key for 8CPA. Note: Removal of these parts is not required.
2. Remove insert lock screw from inlet with 3/16 in. hex key wrench for 4CPA and 3/8 in. hex key wrench for 8CPA.
3. Force insert out by pushing against poppet with blunt pin inserted through the outlet port. Remove poppet and spring.
4. Inspect parts to be re-used; poppet, set screw, seat, adjusting nut, and lock nut, if removed. Before reassembly, be certain that all components are clean and free of contaminants and nicks.
REASSEMBLY
1. Lubricate O-ring with thin film of system compatible lubricant and assemble O-ring onto groove of insert. Be sure O-ring is fully seated.
2. Place spring, poppet, and insert with O-ring into inlet. Note: For 8CPA, 350-
600 spring only, TFE coated end of spring must be opposite poppet.
3. Secure assemblies by threading the insert lock screw into position and tighten as follows:
Valve Series
Valve Material
Brass
Stainless Steel
4CPA
45 in∙lb
85 in∙lb
8CPA
200 in∙lb
300 in∙lb
4. Set adjusting screw to obtain desired cracking pressure and lock firmly in place with locking screw. Use 5/32 in. hex key wrench for 4CPA and 5/16 in. hex key wrench for 8CPA.
5. Test valve for proper operation.
8250 Boyle Pkwy Twinsburg, OH 44087 U.S.A. P: 330.425.4250
www.mySSPusa.com
CP Series One-Piece, Pipe-Ended Check Valves
DISASSEMBLY
1. Place valve body in vise and remove insert lock screw from inlet with 3/16 in. hex key wrench for 4CP and 3/8 in. hex key wrench for 8CP.
2. Force insert out by pushing against poppet with blunt pin inserted through the outlet port. Remove poppet and spring.
3. Inspect parts to be re-used; poppet, seat, and set screw. Before
reassembly, be certain that all components are clean and free of
contaminants and nicks.
REASSEMBLY
1. Lubricate O-ring with thin film of system compatible lubricant and
assemble O-ring onto groove of insert. Be sure O-ring is fully seated.
2. Place spring, poppet, and insert with O-ring into inlet bore.
3. Secure assemblies by threading the insert lock screw into position and torque as follows:
Valve Series
Valve Material
Brass
Stainless Steel
4CPA
45 in∙lb
85 in∙lb
8CPA
200 in∙lb
300 in∙lb
4. Test valve for proper operation.
8250 Boyle Pkwy Twinsburg, OH 44087 U.S.A. P: 330.425.4250
www.mySSPusa.com