This website uses cookies. Find out why they are used read our privacy policy. x
By browsing this website you agree to use cookie files, in accordance with the current browser settings.

Plenum boxes

Photo of product family: Plenum boxes

Plenum boxes are used together with air diffusers in low- and medium-pressure ventilation systems.  Plenum boxes are used for airflow balancing and to ensure a continuous air flow to the diffuser.

Plenum boxes for ventilation systems can be manufactured with side or top entry. In addition, they can be equipped with a damper in the inlet spigot of the plenum. Standard plenum boxes are supplied with elastic and high-temperature resistant insulation on the basis of synthetic rubber, thickness: 9 mm

Material: galvanised steel sheet

Stainless steel sheet metal upon request 

Plenum boxes - Products range
Miniature picture Product code Name of product Files to download
Photo of product Plenum boxes for RVA  exhaust perforated diffusers PRV

Plenum boxes for RVA exhaust perforated diffusers


The PRV plenum boxes connect the ductwork ends to the mesh
screen supply diffusers in high air flow systems.
A plenum box stabilizes the air supply, providing uniform air
flow rate before the air enters the diffuser.

The ductwork is connected to the plenum box inlet port at
the side or from above, depending on the product type. The
inlet port can be provided with a damper.
ALNOR fabricates plenum boxes lined with flexible and heat-resistant
9 mm thick rubber insulation mats. Custom plenum
boxes manufactured as per customer specifications are also
available.

Plenum boxes for RVA exhaust perforated diffusers
Photo of product Plenum boxes for LDS linear slot diffusers PR-LDS

Plenum boxes for LDS linear slot diffusers


The PR-LDS plenum boxes connect the ductwork ends to
the LDS linear slot diffusers in low- or medium-pressure
ventilation systems.

A plenum box stabilizes the air supply, providing uniform air
flow rate before the air enters the diffuser. The ductwork is
connected to the plenum box inlet port at the side.
The PR-LDS inlet port can be provided with a damper.
ALNOR fabricates plenum boxes lined with flexible and heat-resistant
9 mm thick rubber insulation mats.

Plenum boxes for LDS linear slot diffusers
Photo of product Plenum boxes for NCD-S square cone diffusers PRK

Plenum boxes for NCD-S square cone diffusers

 

The PRK plenum boxes connect the ductwork ends to square
diffusers in low- or medium-pressure ventilation systems.
A plenum box stabilizes the air supply, providing uniform air
flow rate before the air enters the diffuser.

The ductwork is connected to the plenum box inlet port at the side or from
above, depending on the product type. The inlet port can be
provided with a damper.

Plenum boxes for NCD-S square cone diffusers
Photo of product Plenum boxes for NKSD-C, NKSD-CB, NK-SWB swirl diffusers PRW

Plenum boxes for NKSD-C, NKSD-CB, NK-SWB swirl diffusers

 

The PRW plenum boxes connect the ductwork ends to swirl
diffusers in low- or medium-pressure ventilation systems. A
plenum box stabilizes the air supply, providing uniform air
flow rate before the air enters the diffuser.

The ductwork is connected to the plenum box inlet port at the side
or from above, depending on the product type. The inlet port can be
provided with a damper.The PRW plenum box is fitted to the NKSD-C,
NKSD-CB or NK-SWB supply diffuser with a rivet nut.

Plenum boxes for NKSD-C, NKSD-CB, NK-SWB swirl diffusers
Photo of product Plenum boxes for NK-SWA swirl diffusers PRR

Plenum boxes for NK-SWA swirl diffusers


The PRR plenum boxes connect the ductwork ends to the
NK-SWA swirl diffusers in low- or medium-pressure ventilation
systems. A plenum box stabilizes the air supply, providing uniform air
flow rate before the air enters the diffuser.

The ductwork is connected to the plenum box inlet port at the side or from
above, depending on the product type. The inlet port can
be provided with a damper. ALNOR fabricates plenum boxes
lined with flexible and heat-resistant 9 mm thick rubber
insulation mats.
Custom plenum boxes manufactured as per customer
specifications are also available.

Plenum boxes for NK-SWA swirl diffusers
Photo of product circular diffusers PRR-CD

circular diffusers


The PRR-CD plenum boxes connect the ductwork ends to
the NCD round supply diffusers in low- or medium-pressure
ventilation systems.

A plenum box stabilizes the air supply, providing uniform air
flow rate before the air enters the diffuser. The ductwork is
connected to the plenum box inlet port at the side or from
above, depending on the product type. The inlet port can be
provided with a damper.

circular diffusers
Photo of product Plenum boxes for NKSD-R swirl diffusers PRR-SD-R

Plenum boxes for NKSD-R swirl diffusers


The PRR-SD-R plenum boxes connect the ductwork ends to the
NKSD-R round-face vane swirl diffusers in low- or medium pressure
ventilation systems. A plenum box stabilizes the air
supply, providing uniform air flow rate before the air enters
the diffuser.

The ductwork is connected to the plenum box
inlet port at the side or from above, depending on the product
type. The inlet port can be provided with a damper.
ALNOR fabricates plenum boxes lined with flexible and heat-resistant
9 mm thick rubber insulation mats. Custom plenum
boxes manufactured as per customer specifications are also
available.

Plenum boxes for NKSD-R swirl diffusers
Photo of product Plenum boxes for NCD circular diffusers PRO

Plenum boxes for NCD circular diffusers


The PRO plenum boxes connect the ductwork ends to round
vane supply diffusers in low- or medium-pressure ventilation
systems.

A plenum box stabilizes the air supply, providing uniform air
flow rate before the air enters the diffuser. The ductwork is
connected to the plenum box inlet port at the side or from
above, depending on the product type. The inlet port can be
provided with a damper.

Plenum boxes for NCD circular diffusers
Photo of product Adapter/ round joint  for circular diffuser NCD RM-NCD

Adapter/ round joint for circular diffuser NCD

The NCD round vane supply diffuser is made from galvanized steel sheet and fitted to the diffuser with two screws supplied with the product. The screws are driven in the frame mid brace; the flange is pressed down to the foam gasket to stabilize the joint between the parts. The product is used when a plenum box is not required.

Adapter/ round joint for circular diffuser NCD
REKUPERACJA
PROJEKTOWANIE