FIG 419
Standard Drop Tube
Caps and Adaptors | Diffusers
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CapabilitiesFIG 539
The diffuser is designed for installation at the bottom end of a drop tube to reduce turbulence and vapor loss during the filling operation.
Standard Features
Reduces vapor loss during fills
Does not increase filling time
Reduces filter usage
Catches rags left in drop elbow
Tank filling, manual sticking, water detection, and cathodic protection (with certain models) can be accomplished without any change in procedure or routine
539AS, 539TC, and 539TO are slip-on style
539AT is threaded style
539TC has a telescoping closed bottom
539TO has a telescoping open bottom
Construction Details
Certifications & Listings
CARB VR-402
Fig | Suffix | Size | Description | Weight |
539AS | 0200 AD | 2” | Diffuser, Slip-on | 1.1 |
539AS | 0200ADEVR | 2” | Diffuser, Slip-on, CARB EVR Approved | 1.1 |
539ASA | 0200ADEVR | 2” | Diffuser, Slip-on, chromate conversion, CARB EVR Approved | 1.1 |
539AT | 0200 AD | 2” | Diffuser, Threaded | 1.1 |
539AT | 0200ADEVR | 2” | Diffuser, Threaded, CARB EVR Approved | 1.1 |
539ATA | 0200ADEVR | 2” | Diffuser, Threaded, chromate conversion, CARB EVR Approved | 1.1 |
539ATB | 0200 AD | 2” | Diffuser, BSP Threaded | 1.1 |
539AS | 0300 AD | 3” | Diffuser, Slip-on | 1.1 |
539AS | 0300ADEVR | 3” | Diffuser, Slip-on, CARB EVR Approved | 1.1 |
539ASA | 0300ADEVR | 3” | Diffuser, Slip-on, chromate conversion, CARB EVR Approved | 1.1 |
539AT | 0300 AD | 3” | Diffuser, Threaded | 1.1 |
539AT | 0300ADEVR | 3” | Diffuser, Threaded, CARB EVR Approved | 1.1 |
539ATA | 0300ADEVR | 3” | Diffuser, Threaded, chromate conversion, CARB EVR Approved | 1.1 |
539ATB | 0300 AD | 3” | Diffuser, BSP Threaded | 1.1 |
539AS | 0400 AD | 4” | Diffuser, Slip-on | 1.1 |
539TC | 0400 AD | 4” | Diffuser, Closed Telescoping Style, Slip-on | 1.1 |
539TC | 0400 ADA | 4” | Diffuser, Closed Telescoping Style, Slip-on, chromate conversion | 1.1 |
539TO | 0400 AD | 4” | Diffuser, Open Telescoping Style, Slip-on | 1.1 |
539TO | 0400 ADA | 4” | Diffuser, Open Telescoping Style, Slip-on, chromate conversion | 1.1 |