Overview
White Knight forward and back-pressure regulators offer remote piloting capability to maintain system pressure for high-purity chemical circulation loops and systems with multiple tool drops or dispense points. They feature fully-swept PTFE and PFA flow paths. They operate at up to 100°C (212°F) and 7 Bar (100 psi). They are air-spring loaded, highly accurate, and reduce system pulsation. Pressure regulators are available in 1/2-in, 3/4-in and 1-in models — determined by the connection size and outer diameter of the tubing. The flow through, or inner diameter of the tubing, is 1/8-in smaller than the connection size.
![White Knight High-Purity Back-Pressure Regulators](https://cdn.wkfluidhandling.com/wp-content/uploads/rba08-rba16-back-pressure-regulators-s-425x425.jpg)
Features & Benefits
- Remotely piloted
- PTFE and PFA fully-swept fluid paths
- No O-rings or extraneous seals
- Metal-free design eliminates potential contamination
- 1/2 in models have 3/8 in flow-through
3/4 in models have 5/8 in flow-through
1 in models have 7/8 in flow-through
- Safe, leak-free operation
- Class 100 clean room assembly, testing, and packaging
- Various liquid connection options
- Minimal parts for durable design
- Easy to install and service
- No maintenance required during two year warranty
- Integral gauge port
System Diagrams
Back-Pressure Regulators
A single back-pressure regulator equalizes upstream fluid pressure across multiple discharge outlets.
![White Knight Back-Pressure Regulator System Diagram](https://cdn.wkfluidhandling.com/wp-content/uploads/back-pressure-regulator-system-diagram-345x155.jpg)
Forward-Pressure Regulators
Forward-pressure regulators control downstream fluid pressure. Each discharge pressure needs a regulator.
![White Knight Forward-Pressure Regulator System Diagram](https://cdn.wkfluidhandling.com/wp-content/uploads/forward-pressure-regulator-system-diagram-300x170.jpg)
Operation
Supply Air
Stable Pressure
Variable Pressure
Back-Pressure Regulators
![](https://cdn.wkfluidhandling.com/wp-content/media/operation-models/rba-operation-model.png)
Forward-Pressure Regulators
![](https://cdn.wkfluidhandling.com/wp-content/media/operation-models/rfa-operation-model.png)
System Demonstration
Dimensions
RBA08 Dimensions
Dimensions: [mm] in
![](https://cdn.wkfluidhandling.com/wp-content/media/dimensionals/rba08-dimensional.png)
RBA08SL Pressure Accumulation
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rba08sl-pressure-accumulation.png)
RBA08PO Pressure Accumulation
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rba08po-pressure-accumulation.png)
RBA12 Dimensions
Dimensions: [mm] in
![](https://cdn.wkfluidhandling.com/wp-content/media/dimensionals/rba12-dimensional.png)
RBA12SL Pressure Accumulation
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rba12sl-pressure-accumulation.png)
RBA12PO Pressure Accumulation
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rba12po-pressure-accumulation.png)
RBA16 Dimensions
Dimensions: [mm] in
![](https://cdn.wkfluidhandling.com/wp-content/media/dimensionals/rba16-dimensional.png)
RBA16SL Pressure Accumulation
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rba16sl-pressure-accumulation.png)
RBA16PO Pressure Accumulation
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rba16po-pressure-accumulation.png)
RFA08 Dimensions
Dimensions: [mm] in
![](https://cdn.wkfluidhandling.com/wp-content/media/dimensionals/rfa08-dimensional.png)
RFA08SL Pressure Droop
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rfa08sl-pressure-droop.png)
RFA08PO Pressure Droop
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rfa08po-pressure-droop.png)
RFA12 Dimensions
Dimensions: [mm] in
![](https://cdn.wkfluidhandling.com/wp-content/media/dimensionals/rfa12-dimensional.png)
RFA12SL Pressure Droop
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rfa12sl-pressure-droop.png)
RFA12PO Pressure Droop
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rfa12po-pressure-droop.png)
RFA16 Dimensions
Dimensions: [mm] in
![](https://cdn.wkfluidhandling.com/wp-content/media/dimensionals/rfa16-dimensional.png)
RFA16SL Pressure Droop
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rfa16sl-pressure-droop.png)
RFA16PO Pressure Droop
![](https://cdn.wkfluidhandling.com/wp-content/media/performance-curves/rfa16po-pressure-droop.png)