Weatherproof Model Number Adjustable  Range  (increasing pressure)  psi (in. wc.) Typical Dead Band psi (in. wc.) Explosion Proof Model Number
12NN-N66-N4-B1A (0.6 to 2.5) (0.4) 12L-N66- N4-B1A
12NN-K614-N4-B1A (2.5 to 45.0) (0.8) 12L-K614-N4-B1A
12NN-K2-N4-B1A 0.4 to 2.0 0.1 12L-K2-N4-B1A
12NN-K4-N4-B1A 0.5 to 6.0 0.1 12L-K4-N4-B1A
12NN-K5-N4-B1A 0.75 to 12 0.1 12L-K5-N4-B1A
12NN-K45-N4-B1A 1 to 16 0.15 12L-K45-N4-B1A
   
Piston 12 Overrange 200 (psi)  Proof 400 (psi)
   
Weatherproof Model Number Adjustable  Range  (increasing pressure)  psi Typical Dead Band psi Explosion Proof Model Number
4NN-K2-N4-B1A 2 to 8 0.2 4L-K2-N4-B1A
4NN-K4-N4-B1A 2 to 25 0.3 4L-K4-N4-B1A
4NN-K5-N4-B1A 3 to 50 0.4 4L-K5-N4-B1A
4NN-K45-N4-B1A 4 to 75 0.5 4L-K45-N4-B1A
Piston 4 Overrange 750 (psi)  Proof 1000 (psi)

Weatherproof Model Number Adjustable Range  (increasing pressure)  psi Typical  Dead  Band  psi Explosion Proof Model Number
6NN-K2-N4-F1A 7 to 30 0.5 6L-K2-N4-F1A
6NN-K3- N4-F1A 12 to 100 0.9 6L-K3-N4-F1A
6NN-K5- N4-F1A 20 to 180 1.4 6L-K5-N4-F1A
6NN-K45- N4-F1A 25 to 275 1.9 6L-K45-N4-F1A
5NN-K3- N4-F1A 25 to 240 2.2 5L-K3-N4-F1A
5NN-K5- N4-F1A 35 to 375 3.1 5L-K5-N4-F1A
5NN-K45- N4-F1A 45 to 550 3.9 5L-K45-N4-F1A
9NN - K4- N4-F1A 100 to 500 5.3 9L-K4-N4-F1A
9NN-K5- N4-F1A 200 to 1000 9.2 9L-K5-N4-F1A
9NN-K45- N4-F1A 200 to 1750 15 9L-K45-N4-F1A
1NN-K45- N4-F1A 500 to 4000 98 1L-K45-N4-F1A

Weatherproof Model Number Adjustable Range  Vacuum-O-Pressure  in. Hg (in. wc) Typical Dead Band in. Hg (in. wc) Explosion Proof Model Number
52NN-K116-M4-B1A (20 - 0 - 20) (0.8) 52L-K116-N4-B1A
52NN-K117-M4-B1A (40 - 0 - 40) (0.9) 52L-K117-N4-B1A
54NN-K117-M4-B1A 15-0-15 0.4 54L-K117-N4-B1A
54NN-K118-M4-B1A 30-0 0.6 54L-K118-N4-B1A
56NN-K216-M2-F1A 30-0-20 0.8 56L-K216-M2-F1A
56NN-K316-M2-F1A 30-0-160 1.1 56L-K316-M2-F1A