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
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 |
PERMA/flo Extreme Type XT & XL Rotary Valve: Unyielding Performance, Engineered for Excellence Since 1964.
Applicable Industries
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Complimentary Products
