The pressure step setting of the superimposed relief valve MRV-02-P-3-B needs to be achieved by adjusting the valve core spring preload in stages. First, loosen the valve body locking mechanism, use a special adjustment tool to slowly rotate the pressure adjustment screw, and gradually increase the set pressure value. Each time a pressure interval is increased (such as 5MPa per level), the system needs to be kept running for 2-3 minutes to observe the pressure gauge fluctuation and the stability of the valve body movement. If abnormal vibration or leakage occurs, the adjustment should be suspended and the seals or connections should be checked. Step-by-step pressure regulation can avoid the impact of sudden pressure changes on the system, ensure that the valve can accurately control the overflow threshold under different working conditions, and reduce the risk of mechanical damage during the adjustment process.

 

The dynamic response test needs to simulate the pressure mutation scenario under actual working conditions. After starting the hydraulic pump, quickly switch the load or flow, and record the response time and pressure overshoot of the relief valve MRV-02-P-3-B from closing to opening. During the test, the pressure sensor data and the valve port opening and closing frequency need to be monitored to ensure that the valve achieves a fast and stable response within the set pressure point (such as response time ≤0.2 seconds). If pressure oscillation or delay is found, it is necessary to check the sensitivity of the pilot valve core, throttle hole blockage or external interference factors, and improve the response characteristics by optimizing the oil cleanliness or adjusting the damping structure.

 

Pressure step setting and dynamic response test are key links to ensure the reliability of the MRV-02-P-3-B relief valve. Step pressure regulation can verify the sealing and reset performance of the valve under multi-level pressure conditions, while dynamic testing evaluates its anti-interference ability and pressure control accuracy. The combination of the two can effectively identify potential design defects or installation deviations, such as premature overflow or delayed pressure relief caused by improper adjustment. Through continuous optimization, the stability of the valve group in high-pressure and high-frequency switching scenarios can be improved, ensuring the safe operation of the hydraulic system and extending its service life.

 

In the power equipment industry, YOYIK is well-known for its rich industry experience and strict quality control. The company not only provides standard accessories, but also provides customized designs for special working conditions to meet the specific needs of different customers. Through in-depth cooperation with many well-known brands around the world, YOYIK can provide users with the introduction and application of the latest technologies and continue to promote technological progress in the industry. Whether it is coal-fired power generation, hydropower generation or new energy fields, YOYIK is synonymous with technological innovation and reliable quality.

 

The following are various spare parts options that our company can provide for power facilities.

#DF-Pressure relief valve MRV-02-P-3-B-DF

Electric stop valve J961Y-420I

Sealing ring 600*7

Proportional directional valve 4WRPE10EA80SJ-3X/M/24A1

Stop valve J61H-250 25

BLADDER NX A10/31.5 L

EH oil regeneration pump 2PB6.2DG28P1VS40

ACCUMULATOR NXQ2-F40/31.5H

Minor Repair Kit for Three-Piece/Bolted Ball Valve Size : 1/2" Pressure rating : 2000WOG (PN130) Welding End : BW Items : #5 #6 #7 #8

changeover valve SCU03

nozzle 19D61-5-0

 motorize valve Sr03GB32046A4

300MW turbine main oil pump guide vane sleeve 70LY-34*10

Bearing cover CO46-09-07

Mechanical seal HSNH660R40ZM1TQ

Shut-off valve J6032.15

fan D2E160

 Proportional speed regulating valve DHZO-TE-071-S540PE

Reheater outlet water pressure test plug valve SD61H-P58.563V SA-182 F91

AC lube pump 125LY-35-5

butterfly valve 150DOF4PB3

fixed cold water pump YCZ65-250

solenoid valve J-110VDC-DN10-D/20B/2A

Stop valve J65Y-2600SPL

High-pressure pipeline 16G2AT-HMP(DN32)*500SFS90 11/4-DN32/SFL-11/2-DN32/SS

The solenoid valve 4WE10DOF/EW24020

servo valve A680.33.42.40.14(1)

The solenoid valve HY-FXF-10.03V(AC)

Stop valve J61Y-P5545V 12Cr1MoV

Bimetallic thermometer WSS-481-Z-C

servo valve 761K4122B

Valve bolts NA

Differential pressure valve diaphragm FOR 977HP

screw pump ACG-070K7-NVBP

nut seal sleeve FK5G32AM-03-06

Check valve H44H-16C

AST solenoid valve 0508.615T0301AW025 220VDC

Pressure relief valve MRV-02-P-3-B

 

pressure hose S110-AC-AL-0100

sealing ring HB4-5618-2B

MOOG Valve D633-521B

solenoid valve EVHTL8551G422MO

Accumulator components DXNQ300B.1

SLEEVE 773064-04-02-33

globe check Throttling valve KJC50-16

globe throttle check valve KJC65-2.5P

The solenoid valve 4WE6D62/EW230 N9K/V

Small machine lubricating oil transfer pump 2CY-12/0.34

Solenoid valve 4WE10D50/EG220N9k4

Low profile valve cylinder 5-7391-0120-99

Sealing component of bellows globe valve WJ65F1.6P-II

High pressure hose 16G2AT-HMP(DN25)*810 DKOL45-28-DN25/SFL-1-DN25-SS

Stainless steel stop valve WJ15F-1.6P

AC lube pump 125LY-35-4

Combination sealing gasket 10/JB982-77

Water separator LYSF-2

O-ring seal HY-SO-0029-V

BFP AC oil pump mechanical seal 70LY-34

pressure hose SMS-12/15-3048-C

Driven gear CO46-09-08

Oil powered servo valve FRD.MB8TXF.215A

Mechanical seal of seal oil pump HSND280-46

Accumulator bladder NXQ-1-F40/10-H

Electric gate valve Z941Y DN400 PN.4MPa T400℃

Plugins LC40DB20E-7x

Reactor Pool Blow-Down Valve JM744X

O-ring rubber seal 45*4-G-S-GB/T3452.1

Electric stop valve J961Y-1750(v)SPL

pressure joint smk20-m10x1-va

Solenoid Valve 4WE6D-L6X/EW220NZ5L

GEARBOX SCW315-42

pressure Regulating valve 0125ZMAW16BQ13UNOERH

shearing pump A2F 107 R2P5

Igniter oil supply fow 2 surface header 1700C12ABAMZZZ

Pressure relief valve MRV-02-P-3-B

 

MY-DFYL-2025-04-01