Technical Specifications:
The SPB Plenum Box is designed for direct mounting on slot diffusers of types SLS and SLB. It is available in variations from 1 to 6 slots, with corresponding dimensions for diameter (ØD), width (B), height (h), and overall height (H). The construction is linear with a minimum length of 300 mm and a maximum length of 2000 mm in one piece, with available steps in length of 1 mm. The spigot is a Class D spigot with a double lip seal, and an optional perforated volume flow control disk is available inside the spigot. Mounting options include standard mounting eyes (Ø7mm) and optional mounting brackets. A perforated pressure distribution plate is included for 5 and 6 slots.

Materials:
The plenum box is constructed from galvanized steel sheet (275g/m²). Optional insulation is available in melamine (6 mm). The spigot is made from PP + TPE, and an optional volume control damper is available in galvanized steel sheet, perforated.

Diffuser Mounting Options:
Direct mounting is achieved by screws. The slot length (L) for the diffuser is calculated as L1 = L - 1 for all configurations (SPB, SPB L/R, SPB M).

Ordering Information:
The plenum box can be ordered with various configurations including the number of slots (1 to 6), type of piece (standard, intermediate, end piece left/right, side connection), insulation options (non-insulated, insulated, half-insulated), slot length (300 to 2000 mm), nominal connection diameter (80-315 mm), damper options (with or without), and mounting strap options (with or without).