MRP-01-B-30,MRP-03-B-30, Stacked pressure reducing valve

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MRP-01-B-30,MRP-03-B-30, Stacked pressure reducing valve $r $n Stacked installation: no pipelines, no leaks, compact and space saving, can be directly stacked with directional valves, overflow valves, etc. $r $n $r $n has fast direct response: no pilot stage, good dynamic performance under low pressure/small to medium flow rate.

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MRP-01-B-30,MRP-03-B-30, Stacked pressure reducing valve

1、 Model Description (Uniform Rules)

withMRP-01-B-30For example:

MRP: Stacked type, direct acting typeP oil pressure reducing valve
01/03/04/06: Diameter/Specification

01：6mm（1/8'）
03：10mm（3/8'）
04：16mm（1/2'）
06：20mm（3/4'）

B/CPressure regulation range

B：1.5～7 MPa（15～70 bar）
C：3.5～14 MPa（35～140 bar）

30Design code, O-ring seal, standard type

2、 Core parameter comparison table (summary of 4 items)

model	path	Maximum flow rate L/min	Pressure regulation range MPa	Maximum working pressure MPa	Weight kg	Installation Standard
MRP-01-B-30	01(1/8')	35	1.5～7	25	≈1.0	CETOP 03 / ISO 4401-03
MRP-03-B-30	03(3/8')	80	1.5～7	25	≈2.4	CETOP 05 / ISO 4401-05
MRP-04-C-30	04(1/2')	200	3.5～14	25	≈4.8	CETOP 07 / ISO 4401-07
MRP-06-C-30	06(3/4')	300	3.5～14	25	≈7.2	CETOP 08 / ISO 4401-08

Medium: ordinary hydraulic oil (ISO VG32/46); Oil temperature: -20 to+80 ℃; Filtering accuracy: ≤ 20 μ m

3、 Structure and Working Principle

type: Direct acting, stacked installationP inlet oil → P outlet oil after pressure reduction
structureValve body, valve core, pressure regulating spring, adjusting screw+locking nut, drain port (Y port)
principle：

High pressure oil enters from port P and is throttled and depressurized by the valve core;
The outlet pressure is fed back to the bottom of the valve core, balancing with the spring force to stabilize the outlet pressure;
When overpressure occurs, the valve core moves upward, the throttle port closes, and the pressure automatically drops back;
Drain port Y must be returned to the oil tank separatelyEnsure stable pressure regulation.

4、 Main features

Stacked installationNo pipelines, no leaks, compact and space saving, can be directly stacked with directional valves, overflow valves, etc.
Fast direct responseNo pilot stage, good dynamic performance under low pressure/small to medium flow conditions.
High pressure accuracyThe B/C level voltage regulation range is clear, with a repeatability accuracy of ≤± 2%.
Durable materialCast iron valve body, quenched steel valve core, anti pollution, long service life.
easy to adjustTop hexagonal adjustment,Clockwise voltage increase, counterclockwise voltage decreaseAdjust the locking nut to prevent loosening.

5、 Typical applications

Machine tool hydraulic station, injection molding machine, die-casting machine
Automated production lines, conveying equipment, light industry machinery
A system that requires independent pressure reduction and stabilization through P channels(such as control oil circuit, clamping circuit, auxiliary power circuit)

6、 Key points for installation and use

Installation directionHorizontal installation, with the nameplate facing upwards; Stacking sequence: Bottom plate → Main valve → Directional valve → Top plate.
Oil leakage requirements：Y port returns to the fuel tank separatelyDo not connect to the T port to avoid back pressure affecting pressure regulation.
stress regulation：

Loosen the locking nut;
Clockwise rotation: pressure increases; Rotate counterclockwise: pressure decreases;
After adjusting to the target pressure,Be sure to tighten the locking nut tightly.

MRP-01-B-30,MRP-03-B-30, Stacked pressure reducing valve

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