| Part Name | Material |
| Body | ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3M |
| Bonnet | ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3M |
| Ball body | SS 304, SS 316, SS 316L |
| Seat | PTFE, PPL |
| Stem | SS 304, SS 316, SS 316L |
| Inverted seal | PTFE, PPL |
| O-ring | Fluororubber |
| Filler | PTFE, PPL |
| Filling clamping ring | SS 304 |
| Butterfly spring | SS 304 |
| NUT | SS 304 |
| Gland of valve | ASTM A351 CF8 |
| Screw | SS 304 |
| NUT | SS 304 |
| Screw | SS 304 |
While circular knitting machines are generally safe to use, it is important to follow the manufacturer’s instructions and take necessary precautions. This may include wearing protective gloves and avoiding loose clothing near the machine.