Type 91 - T91 Subminiature Air Regulator
The Bellofram Precision Controls Type 91 is a subminiature air pressure regulator built for low-flow or dead-end pneumatic applications where installation space is limited. It provides output pressure ranges up to 100 psi in a lightweight, low-cost package and is available with corrosion-resistant anodized aluminum or brass body and bonnet configurations. Standard and low-bleed versions are available, and the self-relieving design supports stable, repeatable pressure control for compact industrial and OEM pneumatic systems.
Features:
- Designed for applications with limited space and for low flow or dead end service
- Small package size and lightweight construction
- Standard or low bleed versions available
- Corrosion resistant anodized aluminum exterior
- Excellent stability and repeatability
- Self-relieving
- Low cost
- Corrosive Environments
- Dependable Reliability and Accuracy for Low Flow or Dead End Applications
Size
.875" X .875" X 3.33"
Port Sizes
1/16" – 27 NPT
Pressure Ranges
0-5 psig, 0-10 psig
0-30 psig, 0-60 psig
0-100 psig
0-30 psig, 0-60 psig
0-100 psig
Mounting Options
Pipe or Panel
Temperature Range
0-160°F
Forward Flow Capacity
2.5 SCFM
1.4 SCFM
1.4 SCFM
Maximum Supply Pressure
250 psig / 150 psig
Materials of Construction
Body: Anodized aluminum
Adjusting Screw: Plated steel
Trim: Brass, Acetal
Diaphragm: Fluorocarbon with
polyester fabric
Knob: Acetal resin
Spring: Music wire
Adjusting Screw: Plated steel
Trim: Brass, Acetal
Diaphragm: Fluorocarbon with
polyester fabric
Knob: Acetal resin
Spring: Music wire
Total Air Consumption @ Maximum Output
3 SCFH
Exhaust Capacity @ 5 psig (0.4 BAR) above setpoint
0.1–0.3 SCFM Typical
(2.8-8.5 LPM)
(2.8-8.5 LPM)
Effect of Supply Pressure Variation on Outlet Pressure
< 0.25 psig
< 0.5 psig
< 0.5 psig
Find Your Part Number
Not sure? Call for help. Phone: 304-387-1200
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