PPR3 Zero Leakage Pressure Reducing Valve

Category:

Pressure Control Valve

The PPR3 pressure reducing valve is an important component in hydraulic systems that ensures secondary pressure remains within a constant range, even with fluctuations in primary pressure. Unlike sliding spool-type pressure reducing valves, this valve does not require a drain line and has zero leakage when closed.

Product advantages

Zero leakage when closed; Simple standard port machining; Standard type, suitable for various applications; Internal functional components are hardened and ground for durability.

400-0532-090

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产品介绍

Product Overview

Technical Parameters

Type	Direct-acting (no leakage when closed)
Structure	Two-way ball valve
Material	Steel ball made from high-quality bearing steel,body treated with heat and zinc-nickel plating
Instalation Position	Any required position
Oil Port Codes	P=Inlet (Hydraulic pump or primary pressure end),A=Actuator (Secondary pressure end)
Allowable Pressure	Hydraulic pump end:PPmax≤350 bar,Actuator end:≤200 bar
Flow Rate	QP → Amax = 12L (PPR3-xxx) QA → Pmax =25L (PPR3-xxx）

Flow Direction	P→A for pressure reducing function,A→P to ensure primary pressure exceeds the set secondary pressure
Hydraulic Oil	According to ISO 3448
Viscosity Range Minimum	4 ...1200 CST,Optimal 10...500 CST
Best Range	10……….500 CST
Operating Temperature	Below 70℃
Environmental Temperature	-40℃ to +80℃
Oil Temperature	-25℃ to +80℃
Recommended Filter Accuracy	25 μm

Specifications	Pressure adjustable range (Bar)	Set pressure value (Bar)	Flow rate (LPM)	Installation method	Adjustability	Principle symbol
PPR3-2	20……..200		12	Metric pipe Thread ISO-fine thread M24x1.5	Adjustable
PPR3-5	15……..130		12
PPR3-2-160	20……..200	160	12
PPR3-2-175	20……..200	175	12

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