P80 Monoblock Directional Valves

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Product details

P80 Monoblock Directional Valves

Product Overview

P80 Monoblock Directional Valve is a heavy-duty one-piece cast Hydraulic valve, upgraded from P40 series with rated flow up to 80 L/min. It integrates multiple control spools, main relief valve and anti-drop check valves inside a single cast iron body. It is used to switch oil flow direction, adjust flow and limit pressure of the hydraulic system. This valve can be customized with 1~8 spools, suitable for medium-load mobile Machine. It adopts parallel oil circuit design, stable performance and strong pollution resistance for tough working environments.

Technical Specifications

- Valve Type: Monoblock directional control Hydraulic valve

- Rated flow: 80 L/min

- Nominal pressure: 20 MPa; Max working pressure: 31.5 MPa (315 bar)

- Back pressure: ≤1 MPa

- Operation: Manual lever control; optional pneumatic / hydraulic remote control

- Spool quantity: 1 to 8 spools customizable

- Spool function options: O, Y, P, A type

- Body material: High-strength cast iron

- Temperature range: -20℃ ~ +80℃

- Hydraulic oil viscosity: 10~400 mm²/s

- Filtration requirement: ≤10μm

Working Principle

This integrated Hydraulic valve has all spools housed within one cast body. When pushing or pulling the control lever, the spool slides to open or close internal oil passages, changing the flow direction of the hydraulic system and driving hydraulic cylinders or hydraulic motors to lift, rotate or stop. The built-in main relief valve restricts maximum system pressure to protect all hydraulic components. Each spool can be fitted with a check valve to prevent load falling caused by oil backflow, ensuring safe operation of the Machine. Multiple spools can work independently or simultaneously.

Core Advantages

1. One-piece monoblock cast iron structure, high rigidity, low leakage and strong impact resistance

2. Rated flow 80L/min, higher load capacity compared with P40 model

3. Built-in adjustable relief valve and load holding check valve, safeguards the whole hydraulic system

4. Flexible customization: spool numbers, spool functions and control modes optional

5. Excellent anti-contamination property, reliable operation for outdoor mobile Machine

Application Range

Designed for hydraulic system of various mobile Machine: medium-sized loaders, tractors, dump trailers, sanitation trucks, aerial work platforms, small excavators, forestry machinery and agricultural equipment.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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