T75 Air Relays
The Type 75 relay uses signal pressure to accurately control output pressure over a wide range of flow and supply pressure variation. Under varying flow conditions output pressure is maintained by use of an aspirator tube, which adjusts the air supply valve opening in accordance with the flow velocity. A balanced supply valve, utilizing a rolling diaphragm, makes the relay virtually immune to changes in supply pressure. Maintenance is simple due to the unit construction, and the relay can be serviced without removing it from the line. Signal to output pressure ratios of 1:1, 1:2, 1:4 and 1:6 are available. Maximum output is 150 PSIG(10.3 BAR).
Features:- Maintenance is simple
- The relay can be serviced without removing
- it from the line
- Signal to output pressure ratios of 1:1, 1:2, 1:4 and 1:6 are
- available. Maximum output is 150 PSIG (10.3 BAR).
- Gas Flow Control
- Volume Boosting
- Valve Motor Loading
- Temperature Range -40˚F to +200˚F
Filter Connection
NPT
Application(s)
Industrial
Accuracy (% of span, typ.)
< 2% (1:1)
Air Consumption
<12 SCFH (5.7 LPM)
Exhaust Capacity (scfm) @ 5 psid
Type 75
6 SCFM (170 LPM)
@ 10 PSIG (0.69 BAR)
above a 20 PSIG
(1.4 BAR) setpoint
Type 75H
15 SCFM (425 LPM)
@ 10 PSIG (0.69 BAR)
above a 20 PSIG
(1.4 BAR) setpoint
6 SCFM (170 LPM)
@ 10 PSIG (0.69 BAR)
above a 20 PSIG
(1.4 BAR) setpoint
Type 75H
15 SCFM (425 LPM)
@ 10 PSIG (0.69 BAR)
above a 20 PSIG
(1.4 BAR) setpoint
Flow Rate (scfm)
40 SCFM (1150 LPM)
@ 20 PSIG (1.4 BAR)
signal and 100 PSIG
(6.9 BAR) supply
@ 20 PSIG (1.4 BAR)
signal and 100 PSIG
(6.9 BAR) supply
Maximum Supply Pressure (psi)
250 PSIG (17.2 BAR)
Sensitivity
1/4" H2O (6.4mm)
Port Size
Type 75
1/4", 3/8"
NPT, BSPP, BSPT
Type 75H
1/4", 3/8", 1/2"
NPT, BSPP, BSPT
1/4", 3/8"
NPT, BSPP, BSPT
Type 75H
1/4", 3/8", 1/2"
NPT, BSPP, BSPT
Product Description
T75 Air Relays
Model
P75
Series
Volume Booster Series
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