Application

Self-tightening suction duct KOS-AL is applied for removal the vehicle exhaust fume by means of mobile balancing extractor OBP-AL (or a mobile extractor OP-AL) which is moving along the duct. The trolley is displacing along the duct while vehicle is pulling the hose with nozzle (coupled at the vehicle’s exhaust pipe). The duct is applied to serve cars and lorries.

Structure

The KOS-AL duct is constructed of aluminium segments of length 13 feet joined together to the requested length depending on User’s needs. The trolley’s fitting piece is sliding in a slot between 2 rubber aprons. The underpressure formed by extraction fan seals the aprons together. The OBP-AL extractor is equipped with a balancer (to lift the hose), locking pawl fixing the hose at a required work-length and a nozzle.

In application with a the self-release nozzle – the releaser disconnects the nozzle automatically, while the extraction trolley approaches the duct-end. After disconnection, the hose with nozzle is lifted to its home position.

Whereas, in application with a nozzle without self-releaser – it should be disconnected manually and then pulled slightly to start the balancer for lifting.

Terminal stoppers (fixed at the duct-ends) – are slowing down the trolley speed, while it approaches the duct-ends. The recommended height of duct mounting is 10 to 13 feet (above the floor surface).

This application gives a possibility to connect the duct with the discharge system at both ends of the duct or on its upper surface.

Self-tightening suction duct

	Type	Part #	Segment length [ft]	Cross section [sq. in]	Unit weight [lb/ft]
	KOS-AL	804K05	13	45	6.5

Mobile balancing extractor

	Type	Part #	Hose diameter [in]	Hose length [ft]	Recomm. flow capacity [cfm]	Flow resistance [in. w.g]	Weight [lb]
	OBP-AL-100-6	804O21	4	20	250	4.8	79
	OBP-AL-125-6	804O22	5	20	400	5.2	81
	OBP-AL-150-6	804O23	6	20	900	8.0	83

Mobile extractor – without balancer – hose should be lifted manually, the hose length is unlimited

Type	Part #	Hose diameter [in]	Hose length [ft]	Recomm. flow capacity [cfm]	Flow resistance [in. w.g]	Weight [lb]
OP-AL-100-6	804O35	4	20	250	4.0	26
OP-AL-125-6	OP-AL-125-6	5	20	400	4.4	28
OP-AL-150-6	OP-AL-150-6	6	20	900	7.2	30

Connectors*

Sort of the fitting piece		Type	Part #	Diameter [in]
	for axial connection	KPC	804K20	6
	for upper connection	KPG	804K25	8

* To connect the duct КОS-АL with the discharge ductwork.

Duct hangers

Sort of the hanger		Type	Part #	Description
	ceiling hanger	Z	804K29	The hangers are fixed to the duct by bolting. The spacing between the hangers should not exceed 10 feet.
	wall hanger	L	804K27

Segment joint Type Part # KSG 804K21 Duct closing Type Part # PZC 804K22 * To be mounted at the beginning of the first segment and the termination of the last segment.

Terminal stopper Type Part # Remarks STK 804K30 Limiting the movement of the trolley at the end of the duct.

Hose

	Type	Part #	Diameter [in]	Thermal resistance [F]	Remarks
	G-EX1-100 G-EX1-125 G-EX1-150	328P60 328P6 328P62	4 5 6	302	Material: black impregnated polyester cloth with spiral; light weight, flexible, resistant against constant squeezing.

Nozzles

Sort of nozzle	Type	Part #	Connection diameter [in]	Inlet size [in]	Weight [lb]	Remarks
	SZGO-125 SZGO-150	819S28 819S29	5 6	6 6.7	5.5 7.1	Circular rubber with clamping mechanism.
	SZGP-100 SZGP-125	819S18 819S19	4 5	7.1 × 4 8.7 × 6	4.6 7.1	Oval rubber with clamping mechanism.
	SZGO-125/B SZGO-150/B	819S70 819S71	5 6	6 6.7	5.5 7.1	Circular rubber with clamping mechanism; automatic disconnection by Bowden cable.
	SZGP-100/B SZGP-125/B	819S72 819S73	4 5	7.1 × 3.9 8.7 × 5.9	4.6 7.1	Oval rubber with clamping mechanism; automatic disconnection by Bowden cable.

NOTE: Placing the order specify the part № and type designation of the given device.

Return rail suction duct The return rail and special construction of extraction trolley assures a simultaneous constant service of several cars in one row, in distance from entrance door to the exit of the garage. At the moment when the vehicle is leaving the garage – the selfreleasing mechanism is disconnecting the nozzle and the released extraction trolley stops its movement on the rail-arc. From this point the trolley is being displaced the way back on the return-rail and is ready to be connected to the next serviced vehicle. This type of solution we are executing on individual demand.