Excellence in Design:

• No rotary action means no need to build clearance (leakage) into the dry material handling valve - which eliminates tramp, fugitive air, and emissions through the valve into the system or leakage to the atmosphere
• Housing is not part of the seal, allowing it to last for decades in the worst operational environments.
• Unlike rotary valves, Plattco’s double flap airlock valves ensure the seal never breaks when filling & emptying. One valve always remains closed to maintain the seal
• The internal wear components, called the Seat & flapper, have machine-tight tolerances to eliminate air leakage

• Seat & flapper can be resurfaced several times with our Regrind Program to get back “like new” condition & performance – renewing the seal at about 15% of the price of new components

• Rated for applications up to 1800 F/980 C
• Rated for applications up to 40 psi/2.75 BAR
• All-cast construction & proprietary alloys (Cast Iron, Ni-Resist, Stainless Steel) for durability & wear resistance
• Proprietary design eliminates bridging, jamming & material build-up (issues that are inherent to the design of rotary airlocks)
• In pressurized applications, Plattco’s patented mechanical shaft seal eliminates the potential for leakage
• Access covers to allow for safe, convenient, easy access to the internal components

Why is Plattco’s reliable, long-lasting seal so important?

• Air leakage deteriorates system capacity, efficiency and cost-effectiveness
• When you can’t produce the amount of material needed, the result is lower sales, decreased profits, and dissatisfied customers.
• Our patented high-pressure mechanical shaft seal will reduce maintenance costs, eliminate damage caused by air cutting, and assures a seal up to 40 psi (2.75 BAR).

Combined with Plattco’s legendary Easy Maintenance Technology, this exceptional radial valve offers the lowest overall 10 year cost of any other airlock on the market.