U.S. PATENT NO. 5,358,004
R-800 Series
Precision High Performance Regulators
The R-800 Series offers ultra-high precision in a compact footprint. Featuring a twenty-turn hysteresis-free adjustment, these regulators allow for settings with 1" WC resolution. With 1/8-27 NPT ports and plastic, corrosion-resistant construction, they are the industry standard for medical and robotic OEM applications.
Key Features
- High Accuracy / Low Supply Variation
- Non-rising stem with four adjusting styles
- Panel mount (9/16" hole) or base mount
- Corrosion-resistant plastic wetted parts
Common Applications
- Medical: Oxygen Concentrators & Ventilators
- Air Bearings & HVAC Systems
- Precision Robotics & Custom Machinery
- Oxygen Clean options available
Series Performance Comparison
| Specification | R-800 (Relieving) | R-810 (Non-Relieving) | R-820 (Near-Zero Bleed) |
|---|---|---|---|
| Bleed Type | Constant Bleed | Non-Bleed | Near-Zero Bleed |
| Sensitivity | 1" H2O (0.25 kPa) | 1" H2O (0.25 kPa) | 2" H2O (0.5 kPa) |
| Repeatability | < ± 0.1 PSI | < ± 0.25 PSI | < ± 0.25 PSI |
| Supply Variation | < 0.05 PSI per 10 PSI change | < 0.1 PSI per 5 PSI change | < 0.1 PSI per 5 PSI change |
Note: R-810 is not recommended for dead-end applications. R-820 requires 5-micron filtration for near-zero bleed operation.
Ordering Information
[Model Series]
800, 810, 820
(Preset: 801, 811, 821)
(Preset: 801, 811, 821)
[Range]
3.5, 10, 30, 60, 90 (PSI)
[Adjustment]
W/K (Knob)
W/S (1/4" Shaft)
W/OS (Slotted)
W/S (1/4" Shaft)
W/OS (Slotted)
Example: R-800-30-W/K
(Relieving precision regulator, 0.5-30 PSI range, with adjusting knob)
* For factory pre-set models, specify set-point, input pressure, and flow requirements.