
Payne (PFR402) Flow Restrictor Capillary Tube with 1/4" NPT
PFR402 Flow Restrictor Capillary Tube with 1/4" NPT
The Payne PFR402 flow restrictor uses a capillary tube design to provide consistent, reliable flow rate control in reverse osmosis systems and other applications requiring precise water flow management. Available in nineteen flow rates from 100 mL per minute to 1200 mL per minute, this restrictor features a 1/4" female NPT threaded connection for integration into standard plumbing configurations.
Technical Details
| Model Series | Payne PFR402 |
| Connection Type | 1/4" NPT Female (National Pipe Thread) |
| Flow Rate Range | 100 to 1200 mL per minute |
| Available Models | PFR402-100, 125, 150, 200, 220, 250, 300, 350, 400, 420, 450, 500, 550, 600, 650, 800, 850, 1000, 1200 |
| Design Type | Capillary tube flow restriction |
| Recommended Fittings | John Guest push-to-connect fittings for water connections |
Application & Installation
The PFR402 flow restrictor is most commonly used to regulate drain line flow in reverse osmosis systems, ensuring proper membrane back pressure and system efficiency. The capillary tube design provides consistent flow control across varying inlet pressures. The 1/4" female NPT thread allows direct connection to threaded ports or use with John Guest adapter fittings for push-to-connect tubing integration. Select the appropriate flow rate model based on your RO membrane size and system design specifications.
PFR402 Flow Restrictor Capillary Tube with 1/4" NPT
The Payne PFR402 flow restrictor uses a capillary tube design to provide consistent, reliable flow rate control in reverse osmosis systems and other applications requiring precise water flow management. Available in nineteen flow rates from 100 mL per minute to 1200 mL per minute, this restrictor features a 1/4" female NPT threaded connection for integration into standard plumbing configurations.
Technical Details
| Model Series | Payne PFR402 |
| Connection Type | 1/4" NPT Female (National Pipe Thread) |
| Flow Rate Range | 100 to 1200 mL per minute |
| Available Models | PFR402-100, 125, 150, 200, 220, 250, 300, 350, 400, 420, 450, 500, 550, 600, 650, 800, 850, 1000, 1200 |
| Design Type | Capillary tube flow restriction |
| Recommended Fittings | John Guest push-to-connect fittings for water connections |
Application & Installation
The PFR402 flow restrictor is most commonly used to regulate drain line flow in reverse osmosis systems, ensuring proper membrane back pressure and system efficiency. The capillary tube design provides consistent flow control across varying inlet pressures. The 1/4" female NPT thread allows direct connection to threaded ports or use with John Guest adapter fittings for push-to-connect tubing integration. Select the appropriate flow rate model based on your RO membrane size and system design specifications.
Original: $5.01
-65%$5.01
$1.75Description
PFR402 Flow Restrictor Capillary Tube with 1/4" NPT
The Payne PFR402 flow restrictor uses a capillary tube design to provide consistent, reliable flow rate control in reverse osmosis systems and other applications requiring precise water flow management. Available in nineteen flow rates from 100 mL per minute to 1200 mL per minute, this restrictor features a 1/4" female NPT threaded connection for integration into standard plumbing configurations.
Technical Details
| Model Series | Payne PFR402 |
| Connection Type | 1/4" NPT Female (National Pipe Thread) |
| Flow Rate Range | 100 to 1200 mL per minute |
| Available Models | PFR402-100, 125, 150, 200, 220, 250, 300, 350, 400, 420, 450, 500, 550, 600, 650, 800, 850, 1000, 1200 |
| Design Type | Capillary tube flow restriction |
| Recommended Fittings | John Guest push-to-connect fittings for water connections |
Application & Installation
The PFR402 flow restrictor is most commonly used to regulate drain line flow in reverse osmosis systems, ensuring proper membrane back pressure and system efficiency. The capillary tube design provides consistent flow control across varying inlet pressures. The 1/4" female NPT thread allows direct connection to threaded ports or use with John Guest adapter fittings for push-to-connect tubing integration. Select the appropriate flow rate model based on your RO membrane size and system design specifications.



