PSLF Plate-Mounted Proportional Spool Valves

PSLF Plate-Mounted Proportional Spool Valves

7 day ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

PSLF Plate‑Mounted Proportional Spool Valves

Product Overview

PSLF Plate‑Mounted Proportional Spool Valves are high‑grade load‑sensing Hydraulic valve, specially designed for constant‑pump hydraulic system . As the central control component, it accurately adjusts flow volume, oil direction and working pressure for multiple actuators on the Machine. It adopts plate‑mounted flange connection structure, available for single‑valve installation or combined valve bank assembly. Multiple valve slices can be flexibly matched according to equipment operating requirements. Rear‑arranged oil ports bring convenient piping and later‑stage maintenance, greatly optimizing the layout of the whole hydraulic loop[(HAWE Hydra...)].

Technical Specifications

- Product Name: PSLF Plate‑Mounted Proportional Spool Valves

- Category: Hydraulic valve

- Working Medium: Mineral‑based hydraulic oil

- Max Working Pressure: 400‑420 bar

- Rated Flow: Multiple sizes to satisfy different flow demands

- Control Modes: Manual operation, hydraulic pilot, electro‑proportional control

- Matching System: Constant displacement pump hydraulic system

- Operating Temperature:‑20℃ ~ +80℃

- Structure: Plate‑mounted flange, modular combinable valve bank

- Core Feature: Load‑sensing principle, independent pressure compensation for each section, multi‑actuator synchronous independent operation

Working Principle

This precision Hydraulic valve applies load‑sensing pressure‑compensated spool principle. Within the hydraulic system, control signals drive spool displacement, changing the opening area of oil passage to realize stepless adjustment on flow and direction for hydraulic cylinders and hydraulic motors of the Machine.

Every valve section is fitted with independent pressure compensator, which can stabilize output flow regardless of load fluctuation. Load‑sensing pressure signal feeds back actual working load to the constant‑pump circuit, realizing reasonable distribution of oil supply flow. Several executive components can run at different speeds simultaneously without mutual interference. Built‑in over‑pressure protection prevents overload damage to the whole Machine. The plate‑mounted design simplifies assembly and disassembly without disturbing other pipeline connections.

Key Advantages

1. Plate‑mounted flange structure, flexible single‑piece or valve‑bank combination, easy installation and replacement, simplifies construction of the hydraulic system.

2. Load‑sensing independent pressure compensation, load‑independent stable speed performance for each actuator on the Machine.

3. Multiple control selections: manual, hydraulic pilot and electro‑proportional, adaptable to traditional and intelligent automatic control schemes.

4. High proportional control precision, low hysteresis, smooth action transition, effectively reduces hydraulic impact during startup and commutation.

5. Rear‑side port layout, convenient piping and field maintenance; rugged structure, strong oil contamination resistance, suitable for severe working conditions of mobile machinery[(HAWE Hydra...)].

Application Scope

This high‑reliability Hydraulic valve is widely deployed in the hydraulic system of various Machine: truck‑mounted cranes, mobile lifting apparatus, drilling rigs, aerial work platforms, forestry machinery, municipal special vehicles and engineering equipment. Mainly used for multi‑action control such as lifting, slewing, telescoping, travelling and clamping for complex mobile machinery[(HAWE Hydra...)].

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

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

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