Model: PC11/PC-31/PC-51
A check valve with PFA lining. PC11, PC-31 and PC-51 are rated CLASS 150 LB, PN16 and JIS 10K, respectively. The catalog specifies separate maximum pressures for forward and reverse flow.


| Size (PC11) | 1/2″~4″ |
| Pressure rating (PC11) | CLASS 150 LB |
| Maximum working pressure (PC11) | FLOW: 275 psi (19 bar); CHECK: 150 psi (10 bar) |
| Body design (PC11) | ASME B16.34 |
| Connection standard (PC11) | ASME B16.5 class 150 RF |
| Testing standard (PC11) | ASME B16.34 |
| Body and cap material (PC11) | A351-CF8 + PFA lining |
| Size (PC-31) | DN15~DN100 |
| Pressure rating (PC-31) | PN16 |
| Maximum working pressure (PC-31) | FLOW: 232 psi (16 bar); CHECK: 150 psi (10 bar) |
| Body design (PC-31) | EN12516 |
| Connection standard (PC-31) | EN 1092-1 |
| Testing standard (PC-31) | EN12266-1 |
| Body and cap material (PC-31) | 1.4308 + PFA lining |
| Size (PC-51) | 15A~100A |
| Pressure rating (PC-51) | JIS 10K |
| Maximum working pressure (PC-51) | FLOW: 200 psi (14 kgf/cm²); CHECK: 150 psi (10 kgf/cm²) |
| Body thickness (PC-51) | ASME B16.34 |
| Connection standard (PC-51) | JIS B2220 10K RF |
| Testing standard (PC-51) | JIS B2003 |
| Body and cap material (PC-51) | SCS13A + PFA lining |
| Operating temperature (PC11/PC-31/PC-51) | -30°C~100°C |
| Face-to-face standard (PC11/PC-31/PC-51) | ISO 5752 |
| Sleeve, disc and washer material (PC11/PC-31/PC-51) | PTFE |
| Lining thickness (PC11/PC-31/PC-51) | Minimum 3 mm |