Adjustable Pressure Limiting Valve

4750103000 Adjustable Pressure Limiting Valve belongs to PRESSURE LIMITING VALVE.

Primary Role

·Pressure Safeguard: Automatically limits system pressure to 2.4MPa (±0.1)

·Overload Protector: Instantly releases excess pressure to protect hydraulic components

·Pressure Stabilizer: Absorbs hydraulic shocks

Key Design Features

·Dual-Release System: Combines pilot-operated and direct-acting mechanisms for fail-safe operation

·Visual Alert: Extends red warning rod when pressure relief activates

·Leak-Free Seal: Metal-to-metal sealing

Failure Indicators

·Erratic system pressure (stuck valve core)

·Constant pressure release (fatigued pilot spring)

·Stuck warning rod (sealing surface damage)

Maintenance Requirements

·Check valve contamination every 500 operating hours (NAS Class 8)

·Use only ISO VG46 or higher anti-wear hydraulic oil

·Pressure calibration required during initial installation

Key Safety Aspects:

·Prevents hydraulic system overpressure damage

·Provides immediate visual fault indication

·Designed for heavy-duty industrial applications

The valve's proportional relief design gradually increases flow as pressure approaches the setpoint, preventing hydraulic hammer that could damage pumps and actuators. During normal operation, it maintains system pressure within 10% of the optimal working range, automatically resealing when conditions stabilize.

Proper installation requires orientation according to flow markings and periodic testing using calibrated pressure gauges. Technicians should verify:

·Setpoint accuracy every 25,000 operating hours

·Seal integrity during routine maintenance

·Freedom of poppet movement

4750103000 Adjustable Pressure Limiting Valve belongs to AIR HANDLING SYSTEM. The 4750103000 pressure limiting valve is a precision component for European truck air systems, featuring standardized M22×1.5 ports and a 20 bar maximum pressure rating. With an adjustable 5.8-10.8 bar range and -40℃ to +80℃ operation, this robust valve ensures reliable pneumatic pressure control in demanding transport applications.

Q: How do you control product quality?

A: 1) Each production batch will have a task list and a flow list.

2) Each batch of products will go through the first inspection, random inspection and final inspection, three processes to control the quality.

Q: How to purchase and transport this accessory?

A: You can place an order through our international sales channels and choose the appropriate shipping method.

Q: Do you provide customized services for accessories?

A: Yes, we provide customized accessory services to meet customers' special needs. Please contact customer service for more details.

Q: How long does it take to customize a product?

A: The production cycle of customized products is usually longer than that of standard products, depending on the design complexity and production schedule.

Q: How long is the warranty period for the product?

A: The warranty is 12 months, if there's any actual quality problem, we will give refund or send new products as compensation.