90° Female Elbow

 

Part#	Tube OD MALE NPT	A	B	PARKER	GATES	Tectran	Fairview	Tramec Sloan
3030 - 4C	1/4*1/8	0.69	0.52	270AB - 4 - 2	/	/	1170-4A	S270AB-4-2
3030 - 4D	1/4*1/4	0.78	0.71	270AB - 4 - 4	/	/	/	S270AB-4-4
3030 - 6C	3/8*1/8	0.83	0.59	270AB - 6 - 2	/	1170-6A	/	S270AB-6-2
3030 - 6D	3/8*1/4	0.89	0.77	270AB - 6 - 4	/	1170-6B	/	S270AB-6-4
3030 - 6E	3/8*3/8	0.93	0.77	270AB - 6 - 6	G30154 - 0604	1170-6C	/	S270AB-6-6
3030 - 8E	1/2*3/8	0.93	0.82	270AB - 8 - 6	/	/	/	S270AB-8-6
3030 - 8F	1/2*1/2	1.13	1.01	270AB - 8 - 8	G30154 - 0806	/	/	S270AB-8-8

 

The 90 ° Female Elbow of DOT Push In Fitting Copper Tubing brass fittings is widely used in air brake systems and related fluid transmission scenarios that require changing the direction of pipelines due to its flexible steering, fast connection, and strong corrosion resistance.

 

Air brake systems in the transportation industry:
1. Trucks/Trailers/Motorhomes
Scenario: Used to connect chassis air pipelines with brake chambers, air storage tanks, relay valves, and other components, achieving a 90 ° turn of the pipelines to avoid interference with the vehicle structure due to excessively long straight layouts.
Advantages: Quick installation (no tools required) saves maintenance time, especially suitable for emergency maintenance of long-distance transportation vehicles; Brass material is resistant to vibration and corrosion, suitable for bumps and complex road conditions during vehicle operation.

2. Buses/fire trucks/railway vehicles
In the brake pipeline of large vehicles, it is used for the steering connection between the cab control pipeline and the chassis brake components, or for the steering of pipelines between multiple carriages (such as the brake hose connection of railway vehicles).
Advantages: High pressure resistance and wide temperature performance, meeting the requirements of harsh working environments; Reliable sealing (O-ring design), avoiding safety hazards caused by brake air leakage.

 

Air suspension system and cabin control:
1. Commercial vehicle air suspension system
Connect the pipeline between the air compressor and the suspension airbag, adjust the pipeline direction through a 90 ° elbow, make the airbag inflation/exhaust pipeline layout more compact, and avoid friction with components such as wheels and frames.
Advantages: Lightweight brass material reduces vehicle load; Repeatable disassembly (press and hold the snap ring to remove the tube), convenient for debugging and maintenance of the suspension system.

2. Pneumatic control system for the carriage
Pneumatic opening and closing devices are used for refrigerated trucks, dump trucks, and other compartments (such as tailgate pneumatic valves and pneumatic support rods for side curtain compartments), which change the direction of the air path through bends to achieve precise control.
Advantages: Quick connection feature reduces cabin modification time; The anti-corrosion ability is suitable for environments such as humidity and dust inside the carriage.

 

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