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G-8
Close-off Pressures
MZ Series
Valve Size
Electronic
2-Way 3-Way
Normally Open
1/2", Cv ≤ 1.6 60 (414) 25 (172)
1/2", Cv ≤ 4 35 (241) 15 (103)
3/4 to 1", Cv ≤ 10 30 (207) 10 (69)
Normally Closed
1/2", Cv ≤ 1.6 70 (482) 70 (482)
1/2", Cv ≤ 4 40 (276) 40 (276)
3/4 to 1", Cv ≤ 10 30 (207) 30 (207)
Table Note:
All close-off values within table are in psi (kPa) unless
otherwise indicated.
For 3-Way valve close-offs, use this chart to determine
upper port (NC) and bottom port (NO).
MT Series
2-Way
Valve Size
Pneumatic Electronic
599-01088
SQS SSC
3 to 8 psi
(21 to 55 kPa)
8 to 13 psi
(55 to 90 kPa)
10 to 15 psi
(69 to 103 kPa)
Normally Open
1/2", Cv ≤ 1.6 95 (655) 45 (310) 20 (138) 160 (1103) 120 (868)
1/2", Cv ≤ 4 45 (310) 25 (172) 15 (103) 85 (586) 65 (448)
3/4 to 1", Cv ≤ 10 35 (241) 10 (69) — 70 (482) 55 (379)
Normally Closed
1/2", Cv ≤ 1.6 40 (276) 95 (655) 95 (655) 95 (655) 95 (655)
1/2", Cv ≤ 4 28 (193) 50 (345) 50 (345) 50 (345) 50 (345)
3/4 to 1", Cv ≤ 10 18 (124) 40 (276) 40 (276) 40 (276) 40 (276)
3-Way
Valve Size
Pneumatic Electronic
599-01088
SQS SSC
3 to 8 psi
(21 to 55 kPa)
8 to 13 psi
(55 to 90 kPa)
10 to 15 psi
(69 to 103 kPa)
Normally Open
1/2", Cv ≤ 1.6 95 (655) 45 (310) 20 (138) 160 (1103) 95 (655)
1/2", Cv ≤ 4 45 (310) 25 (172) 15 (103) 85 (586) 50 (379)
3/4 to 1", Cv ≤ 10 35 (241) 10 (69) — 70 (482) 40 (276)
Normally Closed
1/2", Cv ≤ 1.6 40 (276) 95 (655) 120 (827) 95 (655) 95 (655)
1/2", Cv ≤ 4 28 (193) 50 (345) 65 (448) 50 (345) 50 (345)
3/4 to 1", Cv ≤ 10 18 (124) 40 (276) 50 (345) 40 (276) 40 (276)
Table Notes:
All close-off values within table are in psi (kPa) unless otherwise indicated.
For 3-Way valve close-offs, use this chart to determine upper (NC) and bottom port (NO).
Normally open close-off pressures are at 20 psi actuator pressure.
Normally closed close-off pressures are at 0 psi actuator pressure.