Des Champs HVAC Air-Trap™ waterless trap allows liquid condensate to drain from the HVAC equipment and simultaneously prevents air from entering or escaping from the equipment.  

PLP-Series

A new concept in condensate trap design permits condensate removal from AC or other condensing equipment while blocking airflow all year and requires only 2 7/8" height for positive 0-40" WC pressure (PLP-084) and 2" for the smaller 0 to 6” WC pressure (PLP-051). They will never “dry out” or freeze because they do not  depend on water to seal, only fan pressure.

Levered, horizontal pancake designed float-valve with a mechanical advantage about a pivot point

Benefits

For a hundred years the P-Trap, a carryover from use on toilets and sinks, has been used on AC equipment to prevent air loss. Unlike the P-Trap, the PLP was designed specifically for HVAC equipment and does not require standing water to prevent air leakage. AC equipment produces condensate mostly during summer. The remainder of the year little or no condensate is produced, and the P-traps are dry most of that time. When they do have water, the bottom of the trap is prone to develop sludge and growth. The PLP operates dry when no condensate is being produced and uses a levered, horizontal pancake designed float-valve with a mechanical advantage about a pivot point. This allows the PLP to require less than 2 7/8" inches of height for up to 40 inches WC pressure instead of the 8 to 60 inches required for a standard P-Trap.

Because positive pressure, resulting from blow through units, does not create the problems associated with negative pressure condensate traps, such as sucking air and blowing condensate over the cooling coil compartment, positive pressure traps are many times left out of the drain line. This results in air that has just been cooled or heated being blown to ambient and unconditioned ambient air of equal amount being drawn into the space through the building envelope or ducting. Another problem facing engineers and contractors that prevent using a positive P-trap is the height required by the trap to enable it to contain enough condensate to prevent dry-out and leakage of conditioned air during the entire year. Also, there are essentially no universal mechanical codes that require traps on condensate lines that would prevent loss of conditioned air. The PLP-Series Air-Trap solves all the problems just mentioned.

For more information, please contact Des Champs Technologies at:

ph: 540 228 1967 or info@deschampstechnologies.com

Maximum Pressures, Connection Sizes and Lengths

PLP-Series Videos

PLP-Series - 1 1/2" in Operation

A video showing the operation of the PLP-Series during testing.

PLP-Series - 3/4" in Operation

A video showing the operation of the PLP-Series during testing.

Specifications

PLP-084     1-1/2"

Maximum negative pressure of WC:  N/A

Maximum positive pressure of WC:  0-40"

Maximum Condensate Flow, GPM

  Negative Pressure: N/A

  Positive Pressure:

     2.2 at 25" WC

     2.5 at 15" WC

     4.0 at 0.5" WC

Length: 7.75"

Flammability rating is UL94 V-0

Air-Traps Meet IMC® Code Section M307.2.4.1

PLP-051     3/4"

Maximum negative pressure of WC:  N/A

Maximum positive pressure of WC:  0-6"

Maximum Condensate Flow, GPM

  Negative Pressure: N/A

  Positive Pressure:

     0.8 at 5" WC

     0.95 at 2" WC

Length:  5.6"

Flammability rating is UL94 V-0

Air-Traps Meet IMC® Code Section M307.2.4.1

Available Models and Connection Sizes

Model PLP-084

1-1/2"

Clear

White

Clear

White

Model PLP-051

3/4"

PLP-Series Operation

The PLP operates dry when no condensate is being produced and uses a levered, horizontal pancake designed float-valve with a mechanical advantage about a pivot point. This allows the PLP to require less than 2-7/8" inches of height for up to 40 inches WC pressure (PLP-084) instead of the 8 to 60 inches required for a standard P-Trap. 2" for the smaller 0 to 6 inches WC pressure (PLP-051)

PLP-Series Installations

PLP-051, 3/4" positive pressure low profile Air-Trap. Only requires 1" from inlet to outlet.

PLP-084, 1-1/2" positive pressure low profile Air-Trap, with 3/4" bushing on the inlet and 2" bushing on the outlet.

No More Troublesome "P" Traps

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or purchase the PLP-Series below using the secure checkout from our Shopify store, waterless-trap.com

Patented: US11231203B1