When Heavy Duty Isn’t Enough!
Delta Ducon PERMA/flo Extreme Rotary Valve
Since 1964 the PERMA/flo “XT & XL” Extreme Rotary Valve has been considered the valve of choice by customers who demand long life, rugged durability, ease of maintenance and high quality. Though the basic footprint of the “XL” has remained unchanged since it’s inception, the “XT” series was designed in 2003 with enhancements that increased the throat size on the 6” through 12” models. The increased throat provides up to an additional 82% larger inlet than the previous design. This was achieved by increasing the number of pockets in the rotor from nine to ten. In turn, this allows the inlet shoe to widen, exposing a two pocket width in lieu of one. The extra width minimizes possible bridging, while increasing pocket fill efficiency. Sizes 14” through 24” remain our traditional “XL” design.
Features
Both the rotor and seal/wear shoe are constructed of a special chrome, nickel-iron alloy called P-33. This alloy yields a hardness of over 550 Brinell. Unlike other valves that feature a surface hardening, P-33 is a solid alloy casting that does not wear off to expose a softer metal base.
Field Adjustable
Rotor and Wear Shoe can be adjusted quickly without removing valve from service.
Outboard Munted Bearings
Flanged outboard mounted re-greaseable bearings.
Sealed Graphite Bearings for High Temp Applications
Three Packing Options
Standard Packing (Lantern Ring Braided Packing)
Cartridge Seals
Air Mizer Seals
Replaceable Wear Parts
Rotor & Wear Shoe can be replaced with the valve in service in lieu of repalcing entire valve
Temperature
Standard: Rated to 500 F
High Temp Models: 800 F Continuous with spikes to 1000 F
Shaft Air Purge Kits
For sealing against a differential pressure
PERMA/flo Extreme Type XT & XL Rotary Valve: Unyielding Performance, Engineered for Excellence Since 1964.
14"-24" Type XL Extreme Rotary Valve Adjustment and Inspection
Disclaimer: The videos provided are supplementary to the Delta Ducon Operation and Maintenance (O&M) Manual that was shipped with your valve. The O&M Manual is the authoritative document, and all procedures, guidelines, and safety protocols outlined within it must be followed.
A key feature of the Extreme Rotary Valve is the convenient field adjustment of the P-33 rotor to P-33 wear shoe clearances. This video guides you through the process of inspecting these clearances and demonstrates the precise procedure for adjusting them to meet factory settings on our 14" to 24" Type XL Extreme Rotary Valve. This ensures consistent, reliable performance and prolonged equipment life. Furthermore, additional resources illustrates that if your inspection determines the rotor and wear shoe have worn past the point of adjustment, they can be replaced on-site with minimal effort, allowing you to quickly get your operations back up and running.
6"-12" Type XT Extreme Rotary Valve Adjustment and Inspection
One of the most beneficial features of the Extreme Rotary Valve is the ability to adjust the P-33 rotor to the P-33 wear shoe clearances directly in the field. This video provides a detailed, step-by-step guide on how to both inspect the clearances and make precise adjustments to restore them to factory specifications on our 6" to 12" Type XT Extreme Rotary Valve. This procedure helps maintain peak performance and extend the lifespan of your equipment. Should your inspection reveal that the rotor and wear shoe are worn beyond the point of adjustment, additional videos are available to demonstrates how easily these components can be replaced in the field, minimizing downtime and maximizing efficiency.
Disclaimer: The videos provided are supplementary to the Delta Ducon Operation and Maintenance (O&M) Manual that was shipped with your valve. The O&M Manual is the authoritative document, and all procedures, guidelines, and safety protocols outlined within it must be followed.
Model
XT
XL
" A" SIZE | 6" | 8" | 10" | 12" | 14" | 18" | 24" |
|---|---|---|---|---|---|---|---|
Capacity: Cu. Ft. Per Rev. @ 100% eff. | 0.2 | 0.375 | 0.6 | 1 | 1.6 | 2.7 | 6 |
"B" Overall Height (inches) | 20" | 22" | 24" | 27" | 29.75" | 34" | 46.5" |
HP (Fixed Speed) | 0.5 | 0.5 | 1 | 1 | 2 to 5 | 2 to 5 | 7.5 |
HP (Variable Speed / Inverter Duty) | 1 | 1 | 2 | 2 | 3 to 5 | 3 to 5 | 7.5 |
Approximate Weight w/Drive (Pounds) | 800 | 1,100 | 1,300 | 1,700 | 2,100 | 2,700 | 4,000 |
Number of Rotor Pockets | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
Applicable Industries
 |  |  |
|---|---|---|
 |  |
Complimentary Products
