| 321 MP | 3/2 1/8" tappet, spring return |
| 321 CP | 3/2 1/8" tappet, separate pneumatically piloted return |
| 321 2P | 3/2 1/8" double tappet |
| 521 MP | 5/2 1/8" tappet, spring return |
| 521 CP | 5/2 1/8" tappet, separate pneumatically piloted return |
| 521 2P | 5/2 1/8" double tappet |
| 321 MPS | 3/2 1/8" NC servo-piloted tappet, spring return |
| 321 MPSA | 3/2 1/8" NO servo-piloted tappet, spring return |
| 321 2PS | 3/2 1/8" double servo-piloted tappet |
| 521 MPS | 5/2 1/8" servo-piloted tappet, spring return |
| 521 2PS | 5/2 1/8" double servo-piloted tappet |
| 321 MRS | 3/2 1/8" NC servo-piloted roller lever, spring return |
| 321 MRSA | 3/2 1/8" NO servo-piloted roller lever, spring return |
| 521 MRS | 5/2 1/8" servo-piloted roller lever, spring return |
| 321 MN | 3/2 1/8" NC servo-piloted whisker, spring return |
| 321 MNA | 3/2 1/8" NO servo-piloted whisker, spring return |
| 521 MN | 5/2 1/8" servo-piloted whisker, spring return |
| 321 MR | 3/2 1/8" roller lever, spring return |
| 521 MR | 5/2 1/8" roller lever, spring return |
| 321 MRU | 3/2 1/8" uni-directional lever, spring return |
| 521 MRU | 5/2 1/8" uni-directional lever, spring return |
NEW MECHANICALLY ACTUATED VALVES - 2014