Product Overview
Bray Series 55 - 5 Micron High-Precision Filter Regulator
High-Performance Air Filter Regulator for Pneumatic Devices
The Bray Series 55 filter regulator is a high-performance air preparation unit. It provides 5 micron (5 μm) high-precision nominal filtration capability, enabling precise control of supply air pressure while efficiently removing solid particles and liquid contaminants from compressed air, delivering rated clean compressed air to various pneumatic control devices.
For optimal filtration and valve regulation performance, we strongly recommend use with Bray Series 6A and Series 6P pneumatic positioners to prevent fine contaminants from clogging the precision positioner’s internal air passages.
Technical Specifications
Specifications verified against the official Bray technical manual (Bray Series 92/93 Actuator Accessories Specification):
| Technical Item | Specification Parameters |
|---|---|
| Filter Element | 5 Micron Standard - Premium Plastic Material |
| Set Pressure Range | 7 - 125 PSIG (0.05 - 0.85 MPa / 0.5 - 8.6 Bar) |
| Flow (SCFM)* | 30 SCFM (measured at 100 psig inlet, 90 psig no-flow secondary setting, 10 psig pressure drop) |
| Pressure Ports | 1/4” NPT or G 1/4 Metric Thread |
| Gauge Ports | G 1/8 |
| Pressure Ratings** | 0 - 250 PSIG (0 - 17.2 bar / 0 - 1.70 MPa) (Note: Do not connect to high-pressure compressed gas cylinders) |
| Temperature Ratings | 32°F - 175°F (0°C - 80°C) |
| Filter Regulator Body | Zinc Alloy / Non-Removable Rising Adjustment Knob |
| Bonnet & Springs | Plastic Bonnet / Steel Springs |
| Bowls (2 Ounce) | Transparent Polycarbonate Bowl with Metal Guard, or optional Zinc Alloy Bowl with Sight Glass |
| Mounting | Stainless Steel Wall Mount Bracket / Supports Panel Thread Mounting |
Features and Benefits
A | Locking Adjustment Knob
Enables precise downstream pressure adjustment and locks the pressure setting in place, effectively preventing pressure drift caused by industrial vibration or operator misadjustment.
B | Threaded Collar
The body integrates a threaded collar for easy connection to wall-mount brackets and greatly simplifies control panel embedded mounting (Panel Mounting).
C | Standard Pressure Ports
Offers universal 1/4” NPT or G 1/4 metric threads, fully compatible with global mainstream pneumatic piping accessory standards.
D | Quick-Release Filter Bowl
Features an advanced quick-release locking mechanism that allows fast and convenient removal of the filter bowl and guard for cleaning or replacement of the 5 micron filter element — no special tools required.
E | Transparent Polycarbonate Bowl
High-transparency design enables maintenance personnel to easily inspect condensate accumulation and liquid levels inside the filter bowl.
F | Metal Bowl Guard
A rugged metal guard surrounds the filter bowl, providing strong shatterproof and impact protection against harsh external industrial environments.
G | Push-Button Drain
A user-friendly miniature push-button drain valve at the bottom of the bowl allows quick removal of accumulated condensate with a single press.