Chute components

Chutes

Garbage (refuse) chute

Circular refuse chute system for hotels, hospitals and towers, fitted internally through slabs or in shafts, or externally single or double skinned.

Material: Stainless steel SS304 / SS316, galvanised, aluminised or Aluzink steel
Thickness: 1.5 mm (16 ga), 2.0 mm (14 ga), 3.0 mm (11 ga) when specified
Diameters: 500, 550, 600, 700, 800, 900 mm internal (600 mm recommended)
Height: 1–45 storeys, up to 165–170 m per chute
Standard: Entry sections to BS 1703:1977 / BS 5906:1980

Catalogue p. 20

Linen chutes

Linen chute

Chute for the vertical movement of loose and bagged soiled linen in hospitals and hotels, with the same basic specification as refuse chutes.

Material: Stainless steel type 304 trunking
Diameters: 600 mm or 800 mm
Doors: 450 × 450 mm side-hung, self-closing, recommended with electric interlocks
Fire safety: 1½ h fusible-link fire shutter door at discharge; sprinklers every second floor

Catalogue p. 61

Linen chutes

Side-hung linen chute door

Side-hung door on stainless steel hinges with hydraulic self-closer and separate or master-keyed locks, labelled "LINEN ONLY" on request.

Material: Stainless steel
Size: 450 × 450 mm recommended (600 × 600 mm in standard specification)
Fire rating: 2 h (standard linen chute specification)
Operation: Fully self-closing, self-sealing, lockable handle

Catalogue p. 61

Chute components

Chute tube with sound damping

Circular chute trunking rolled from flat sheet with lock-seamed or welded seams, factory-coated externally with sound-dampening compound.

Material: SS304, 1.5 mm thick
Seams: Lock seamed or welded, smooth watertight joints
Sound damping: Factory-applied compound at 1.8 kg/m², not less than substrate thickness

Catalogue p. 24

Chute components

Intake throat (entry section)

Entry section at each floor receiving the hopper door, with an inner baffle preventing blow-back of air or refuse when a hopper is opened.

Standard: Designed within BS 1703:1977 / BS 5906:1980
Construction: Vertical seams welded or lock seamed; horizontal seams mechanically jointed or welded
Location: Through the chute height, one per floor

Catalogue p. 24

Chute components

Hopper door

Self-closing, self-sealing tipping hopper door that ejects loose or bagged refuse into the chute, with a fire-resistant core.

Material: Double-skinned satin stainless steel facings; epoxy powder-coated mild steel base and cheeks
Fire rating: 1½ h; BS 476-22 (fire resistance), BS 476-31.1 (smoke)
Sizes: 450 × 450 mm to 700 × 950 mm, for 500–900 mm chutes
Standard: Flush-fitting and self-closing to BS 1703

Catalogue p. 34

Chute components

Electromagnetic door lock (electric interlock)

Solenoid-bolt interlock for hopper and side-hinged doors, allowing only one door open at a time and linking to alarms and timers.

Supply: 220/240 V 50/60 Hz 10 A max, or 120/240 V 50/60 Hz 5 A max
Timer: Pre-set, delay on/off 5–200 s
Controls: Green illuminated push button, red "chute busy" indicator lamp

Catalogue p. 35

Accessories – vents & fans

Vent tube with insect screen and weathering cowl

Vent pipe terminating above the roof with weathering cowl and insect screen; full-diameter vents keep insects and birds out of the chute.

Material: Vent tube 1.5 mm thick
Height: 1.22 m above roof slab
Full-diameter vent: Usually 300–400 mm diameter, with inspection door
Note: Flashing to roof by others

Catalogue p. 25

Accessories – vents & fans

Automatic foul air exhaust fan

Fan at the top of the vent tube keeping fresh air flowing in the chute, changing the air about 50 times per hour.

Air displacement: 200 m³/h (standard vent); 1820 m³/h (SFSP fan, p. 29)
Motor: Class H tropicalised, continuously rated, 1300 RPM
Supply: 220/240 V or 110/120 V, 50/60 Hz
Use: Vent pipes of 230 mm (9") diameter or above

Catalogue p. 25

Chute components

Access door

Door below the vent tube on the top floor giving maintenance access to the motor, solenoid valve, brush and sanitising unit.

Quantity: One unit per chute
Location: Top floor (mechanical room)

Catalogue p. 31

Chute components

Clamp ring and supporting frame

Rigid welded angle frame holding a metal clamp band that supports the chute at each floor.

Material: Mild steel angle 35 × 35 × 3 mm (other sizes possible)
Finish: Rust-proofed for internal use; hot-dip galvanised for external use
Quantity: One set per floor

Catalogue p. 37

Chute components

Swaged joint

Swaged joint used to join sections of the chute duct.

Location: Between chute sections

Catalogue p. 38

Chute components

Cleaning and fire sprinklers

Cleaning spray nozzles behind each door opening and glass-bulb fire sprinklers inside the intake throat.

Fire sprinkler: ½" IPS, 68 °C (165 °F) glass bulb
Pressure: Normal water supply up to 8 bar
Location: Inside the intake throat
Note: Smoke detection by fire alarm subcontractor

Catalogue p. 39

Fire cut-off door

Automatic fire shutter door type C

Horizontal rolling door held open by springs on a fusible link that rolls shut in a fire; also has a manual closing facility.

Fusible link: 165 °F (68 °C)
Fire rating: 1.5 h
Use: Garbage and linen chutes

Catalogue p. 40

Fire cut-off door

Top-hung automatic fire door type D

Counter-balanced top-hinged door on a fusible link for locations where a standard fire shutter door cannot be fitted.

Fire rating: 1.5 h
Operation: Drops shut on fusible link, held by two retaining catches
Use: 600 mm and 800 mm linen chutes
Note: Safety fencing recommended

Catalogue p. 41

Fire cut-off door

Manual cut-off door (shut-off gate)

Shut-off gate that closes the chute for cleaning, container removal or maintenance of compactors or shredders.

Types: Short form and long form shut-off gates

Catalogue p. 41

Chute components

Elbow (offset)

Factory-fabricated offset in the same material as the chute but in a heavier gauge to withstand falling bags, for all refuse and linen chute diameters.

Angle: Not less than 45° from horizontal
Material: Same as chute, heavier gauge
Sizes: All SFSP chute diameters

Catalogue p. 42

Linen chutes

Deceleration track

Straight, curved or helical track slowing heavy linen bags at the chute discharge, optionally delivering onto a sorting table.

Material: Stainless steel, jointed by R.S. angle rings
Supports: R.S. angle stands, painted, for floor or wall bolting
Types: Straight short, delivery to sorting table, curved; other lengths to specification

Catalogue p. 62

Every product in this range

Garbage (refuse) chute

Linen chute

Side-hung linen chute door

Chute tube with sound damping

Intake throat (entry section)

Hopper door

Electromagnetic door lock (electric interlock)

Vent tube with insect screen and weathering cowl

Automatic foul air exhaust fan

Access door

Clamp ring and supporting frame

Swaged joint

Cleaning and fire sprinklers

Automatic fire shutter door type C

Top-hung automatic fire door type D

Manual cut-off door (shut-off gate)

Elbow (offset)

Deceleration track

Garbage & linen chutes

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