GHTN High-Temperature Dust Filter By Nano

The nano GHTN high-temperature particulate filters, formerly sold as the NHT range, are engineered to protect compressed air systems operating at elevated temperatures up to 450 F. Custom-engineered filter media handles the heat while delivering high-efficiency 1 micron dry particulate removal with minimal pressure drop, and the machined and die-cast aluminum housing stands up to demanding industrial duty. The range spans eleven models from 15 to 1600 SCFM with 1/4" to 3" NPT connections, making the GHTN the ideal particulate guard downstream of externally heated or blower purge desiccant air dryers, where discharge temperatures are too high for standard aluminum filters.

How to select your GHTN filter

1. Match the model to your flow and pipe size. Choose the GHTN rated at or above your actual SCFM at 100 psig, from GHTN 0015 (15 SCFM, 1/4" NPT) up to GHTN 1600 (1600 SCFM, 3" NPT).
2. Confirm your inlet temperature. The GHTN is built for high-inlet-temperature air with a design operating temperature range of 35 to 450 F.
3. Confirm your operating pressure. The design operating pressure range is 0 to 150 psig.
4. Plan element service. Each filter uses a 1 micron GEHT M1 dry particulate element with a maximum life of 12 months or 4000 hours, and a recommended change-out at 5.0 psid.

Key features

• Handles high inlet air temperatures up to 450 F.
• 1 micron dry particulate removal from a custom-engineered high-temperature media.
• Push-fit element design with dual O-ring seals for optimum sealing and mechanical strength.
• Machined and die-cast aluminum housing for durability in demanding environments.
• Manual ball-valve condensate drain included.
• Low clean pressure drop of 1.2 psid keeps energy costs down.
• Ideal downstream of externally heated and blower purge desiccant dryers.

Specifications

• Rated flow: 15 to 1600 SCFM at 100 psig.
• Connections: 1/4", 3/8", 1/2", 3/4", 1", 1-1/2", 2" and 3" NPT depending on model.
• Design operating pressure range: 0 to 150 psig.
• Design operating temperature range: 35 to 450 F.
• Filtration grade: M1, 1 micron dry particulate.
• Replacement element: GEHT M1 series (outside-to-inside flow).
• Pressure drop: 1.2 psid clean, 5.0 psid recommended replacement.
• Maximum element life: 12 months or 4000 hours.
• Housing material: machined and die-cast aluminum. Manual ball-valve drain included.

Ideal applications

• Particulate protection downstream of externally heated desiccant dryers.
• Particulate protection downstream of blower purge desiccant dryers.
• High-temperature process and instrument air.
• Heavy industrial compressed air where discharge temperatures exceed standard filter ratings.
• Applications requiring durable, low pressure drop dust removal in hot air streams.

Frequently asked questions

Is the GHTN the same as the older NHT filter? Yes. The nano NHT high-temperature particulate filter range has been superseded by the GHTN range. The GHTN is the current model with the same size lineup and the GEHT replacement elements.

What temperature can the GHTN handle? The GHTN has a design operating temperature range of 35 to 450 F, which is why it is used on hot air downstream of heated desiccant dryers.

What is the filtration grade? Every GHTN uses a 1 micron M1 dry particulate element. It is a particulate filter, not a coalescing or oil vapor filter.

Which model do I need? Select the model whose SCFM rating at 100 psig meets or exceeds your actual flow, and confirm the NPT connection matches your piping, from 15 SCFM (1/4" NPT) to 1600 SCFM (3" NPT).

How often should the element be replaced? The GEHT element has a maximum life of 12 months or 4000 hours, with recommended replacement once pressure drop reaches 5.0 psid.

Specifications are drawn from the nano GHTN datasheet and are for general reference only. Confirm final selection against the current nano product brochure and user guide.