Below are the injection parts. Complete check valves are on the Check Valves page.
| Part Number | UM | Description | Works With |
| 25 psi (1.7 bar) maximum | |||
| UCAK300 MCAK300 |
EA 5-PK |
1/4″ Injection Fitting with Nut & Ferrule | All Pumps excluding S40, S4V, S44, S4M, S50 |
| UCAK400 | EA | 3/8″ Injection Fitting with Nut | All Pumps excluding S40, S4V, S44, S4M, S50 |
| EUROPE 25 psi (1.7 bar) maximum | |||
| UCAK3CE | EA | Injection Fitting with Nut & Ferrule 6 mm |
All Pumps excluding S40, S4V, S44, S4M, S50 |
| 100 psi (6.9 bar) maximum | |||
| UCCVDB0 MCCVDB0 |
2-PK 5-PK |
Santoprene®* Duckbill | Santoprene®* Duckbill Check Valve |
| UCTYDB2 MCTYDB5 |
2-PK 5-PK |
Pellethane®* Duckbill | Pellethane®* Duckbill Check Valve |
| UCKMDBO MCKMDBO |
2-PK 5-PK |
FKM* Duckbill & O-ring | FKM* Duckbill Check Valve |
| CVIJOR | EA | Santoprene®* O-ring | Santoprene®* Duckbill Check Valve or Ball Check Valve |
| TVIJOR | EA | Pellethane®* O-ring | Pellethane®* Duckbill Check Valve |
| BC100-2 | 2-PK | Tantalum spring; FKM seat & o-ring; ceramic ball | Ball Check Valve |
| BC102-2 | 2-PK | Stainless steel spring; EPDM seat; Santoprene® o-ring; ceramic ball | Ball Check Valve |
* Confirm material compatibility with the chemical resistance guide in the catalog.