Pneumatic Relays

Model 14*
Positive and Negative Bias Relay
(Bias Range: -18 to +100 PSIG in 4 ranges)

Model 15*
Positive Bias Relay
(Bias Range: 0 to +150 PSIG in 4 ranges)
Flow Capacity: SFM (m3/H)* 40(68)
Exhaust Capacity:
SCFM (m3H)		 5.5 (9.35)
Sensitivity: Inch/WC (cm) 0.5 (1.27)
Supply Pressure Var.:
PSIG (kPa)		 250 (1750)
Supply Pressure (Max):
PSIG (kPa)		 150 (1050)
Output Pressure (Max):
PSIG (kPa)		 150 (1050)
Dimensions (Aprx): Inches and (mm) Dia. 3 H 8
(Dia. 76 H 200)
Flow Capacity: SFM (m3/H)* 40(68)
Exhaust Capacity:
SCFM (m3H)		 5.5 (9.35)
Sensitivity: Inch/WC (cm) 0.25 (1.27)
Supply Pressure Var.:
PSIG (kPa)		 250 (1750)
Supply Pressure (Max):
PSIG (kPa)		 150 (1050)
Output Pressure (Max):
PSIG (kPa)		 150 (1050)
Dimensions (Aprx): Inches and (mm) Dia. 3 H 7
(Dia. 76 H 178)

 

Model 21
Adjustable Ratio Relay
(Ratio Range: 30:1 through 1:30)

Model 22
Pneumatic Computing Relay
(Note 1)
Flow Capacity: SFM (m3/H)* 40(68)
Exhaust Capacity:
SCFM (m3H)		 5.5 (9.35)
Sensitivity: Inch/WC (cm) 0.5 (1.27)
Supply Pressure Var.:
PSIG (kPa)		 250 (1750)
Supply Pressure (Max):
PSIG (kPa)		 150 (1050)
Output Pressure (Max):
PSIG (kPa)		 150 (1050)
Dimensions (Aprx): Inches and (mm) 97/8 x 35/8 x 47/8 (251 x 92 x 124)
Flow Capacity: SFM (m3/H)* -
Exhaust Capacity:
SCFM (m3H)		 -
Sensitivity: Inch/WC (cm) -
Supply Pressure Var.:
PSIG (kPa)		 150 (1050)
Supply Pressure (Max):
PSIG (kPa)		 50 (350)
Output Pressure (Max):
PSIG (kPa)		 50 (350)
Dimensions (Aprx): Inches and (mm) Dia. 3 H 9
(Dia. 76 H 228)

 

Model 24
Snap Acting On/Off Relay
(Sig. Range: 2" WC to 120 PSIG in
4 Ranges)

Model 25*
Reversing Relay
(Range: 0-150 PSIG in 4 ranges)
Flow Capacity: SFM (m3/H)* 14 (23.8)
Exhaust Capacity:
SCFM (m3H)		 14 (23.8)
Sensitivity: Inch/WC (cm) -
Supply Pressure Var.:
PSIG (kPa)		 120 (800)
Supply Pressure (Max):
PSIG (kPa)		 -
Output Pressure (Max):
PSIG (kPa)		 -
Dimensions (Aprx): Inches and (mm) Dia. 3 H 8 1/2
(Dia. 76 H 216)
Flow Capacity: SFM (m3/H)* 40(68)
Exhaust Capacity:
SCFM (m3H)		 11 (18.7)
Sensitivity: Inch/WC (cm) 0.12 (0.32)
Supply Pressure Var.:
PSIG (kPa)		 250 (1750)
Supply Pressure (Max):
PSIG (kPa)		 150 (1050)
Output Pressure (Max):
PSIG (kPa)		 150 (1050)
Dimensions (Aprx): Inches and (mm) Dia. 3 H 7 1/2
(Dia. 76 H 190)

 

Model 32
Mini Adjustable Ratio Relay
(Ratio Range: 4:1 through 1:8)

Model 85
Multi-Stage Biasing Relay
(Bias Range: -18 to +100 PSIG in 4 ranges)
Flow Capacity: SFM (m3/H)* 45(76.5)
Exhaust Capacity:
SCFM (m3H)		 2.8 (4.76)
Sensitivity: Inch/WC (cm) 0.1(.25)
Supply Pressure Var.:
PSIG (kPa)		 150 (1050)
Supply Pressure (Max):
PSIG (kPa)		 125 (875)
Output Pressure (Max):
PSIG (kPa)		 125 (875)
Dimensions (Aprx): Inches and (mm) 31/2 x 13/4 x 51/8
(89 x 44 x 130)
Flow Capacity: SFM (m3/H)* 14(23.8)
Exhaust Capacity:
SCFM (m3H)		 2.5(4.25)
Sensitivity: Inch/WC (cm) -
Supply Pressure Var.:
PSIG (kPa)		 250 (1750)
Supply Pressure (Max):
PSIG (kPa)		 150 (1050)
Output Pressure (Max):
PSIG (kPa)		 150 (1050)
Dimensions (Aprx): Inches and (mm) 13/4 x 13/4 x 5
(44 x44 x 127)

 

Model 1500
Positive Bias Relay
(Bias Range: .5 to 150 PSIG in 4 ranges)		 Model 2500
Bias Reversing Relay
(Bias Range: .5 to 150 PSIG in 4 ranges)
Flow Capacity: SFM (m3/H)* 150 (255)
Exhaust Capacity:
SCFM (m3H)		 40 (68)
Sensitivity: Inch/WC (cm) 1.0 (2.54)
Supply Pressure Var.:
PSIG (kPa)		 250 (1750)
Supply Pressure (Max):
PSIG (kPa)		 150 (1050)
Output Pressure (Max):
PSIG (kPa)		 150 (1050)
Dimensions (Aprx): Inches and (mm) Dia. 31/2 H 81/4
(Dia. 89 H 210)
Flow Capacity: SFM (m3/H)* 150 (255)
Exhaust Capacity:
SCFM (m3H)		 40 (68)
Sensitivity: Inch/WC (cm) 1.0 (2.54)
Supply Pressure Var.:
PSIG (kPa)		 250 (1750)
Supply Pressure (Max):
PSIG (kPa)		 150 (1050)
Output Pressure (Max):
PSIG (kPa)		 150 (1050)
Dimensions (Aprx): Inches and (mm) Dia. 31/2 H 81/2
(Dia. 89 H 216)

 

Model 90
Low Pressure Selector Relay

Model 91
High Pressure Selector Relay
Flow Capacity: SFM (m3/H)* Switch differentials: <0.1 PSID (<0.7)
max. differential between signals:
100 PSID (700)
Exhaust Capacity:
SCFM (m3H)
Sensitivity: Inch/WC (cm)
Supply Pressure Var.:
PSIG (kPa)		 -
Supply Pressure (Max):
PSIG (kPa)		 200 (1400)
Output Pressure (Max):
PSIG (kPa)		 -
Dimensions (Aprx): Inches and (mm) Dia. 3 H 13/4
(Dia. 76 H 44)
Flow Capacity: SFM (m3/H)* Switch differentials: <0.1 PSID (<0.7)
max. differential between signals:
100 PSID (700)
Exhaust Capacity:
SCFM (m3H)
Sensitivity: Inch/WC (cm)
Supply Pressure Var.:
PSIG (kPa)		 -
Supply Pressure (Max):
PSIG (kPa)		 200 (1400)
Output Pressure (Max):
PSIG (kPa)		 -
Dimensions (Aprx): Inches and (mm) Dia. 3 H 13/4
(Dia. 76 H 44)

 

Model 92
Low Limiting Relay

Model 93
High Limiting Relay
Flow Capacity: SFM (m3/H)* Switch differentials: <0.1 PSID (<0.7)
max. differential between signals ref:
100 PSID (700)
Exhaust Capacity:
SCFM (m3H)
Sensitivity: Inch/WC (cm)
Supply Pressure Var.:
PSIG (kPa)		 100(700)
Supply Pressure (Max):
PSIG (kPa)		 100(700)
Output Pressure (Max):
PSIG (kPa)		 -
Dimensions (Aprx): Inches and (mm) Dia. 3 H 57/8
(Dia. 76 H 150)
Flow Capacity: SFM (m3/H)* Switch differentials: <0.1 PSID (<0.7)
max. differential between signals ref:
100 PSID (700)
Exhaust Capacity:
SCFM (m3H)
Sensitivity: Inch/WC (cm)
Supply Pressure Var.:
PSIG (kPa)		 100(700)
Supply Pressure (Max):
PSIG (kPa)		 100(700)
Output Pressure (Max):
PSIG (kPa)		 -
Dimensions (Aprx): Inches and (mm) Dia. 3 H 57/8
(Dia. 76 H 150)

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