Foot Brake Valve Iran
Cellphone / Whatsapp: +989122003350
| dizel-part |
| Iran |
| 021-55410365 |
foot brake valve
Engine valves are forged from specialized alloys like 21-4N steel containing 0.55% carbon. Continuous operating temperature for exhaust valves reaches 870 degrees Celsius. Standard stem diameters range from 5.5 to 10 mm with a thermal guidance tolerance of 0.02 mm. The seat angle is precisely 45 or 44.5 degrees with a surface finish of Ra 0.25 microns. Initial spring force is set between 250 and 600 Newtons based on engine configuration. Ionic nitriding processes increase surface hardness to 950 Vickers. This treatment enhances fatigue strength by up to 30%.
Modern valve structure often uses a bimetal design with friction-welded alloy head and stem. Some models feature hollow stems filled with sodium for active cooling. Thermal clearance between valve and guide is typically 0.05 to 0.15 millimeters. Advanced coatings like CrN or AlCrN reduce the friction coefficient to 0.1. Design life under combined thermal and mechanical loads exceeds 150 million cycles. Valve seat concentricity runout is maintained under 0.03 millimeters. These parameters improve engine volumetric efficiency by over 2%.
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| dizel-part | 021-55410365 |
| dizel-part |
| Iran |
| 021-55410365 |
foot brake valve with treadle
The foot-operated valve is a forged aluminum housing using EN AC 42100 alloy. This valve controls hydraulic braking system pressures up to 200 bar. Its solenoid coil features 12 ohms resistance with Class H insulation. The valves full opening response time is under 100 milliseconds. The components operating temperature range is -40 to +130 degrees Celsius. The sealing cap utilizes high chemical resistance FKM elastomer. The nominal electrical current for stable operation is 2 Amps at 24V DC.
The internal structure includes a coated core made of low-carbon steel. The adjusting spring is manufactured from AISI 302 stainless steel with 50 Newtons force. The tolerance between poppet and seat is under 5 microns to prevent leakage. This valve typically has two inlet ports and one outlet port with M12x1.5 standard threading. Power consumption in the active state is approximately 24 Watts. The housing boasts IP6K9K protection against water and dust ingress. The mechanical service life exceeds 2 million full operational cycles.
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| dizel-part | 021-55410365 |
