Bladder NXQ-A-25-31.5-L-Y & 23D-63 AC Solenoid Directional V

Bladder NXQ-A-25-31.5-L-Y & 23D-63 AC Solenoid Directional Valve Maintenance Guide
Product Introduction
Bladder NXQ-A-25-31.5-L-Y is a key accumulator component for hydraulic systems, matching the 23D-63 AC solenoid directional valve. Its decisive operation relies on smooth valve core, stable power supply and minimal oil impurities.

Valve Core & Spring Maintenance
- Disassemble and check the valve core surface, ensuring it’s smooth and scratch-free.

- Apply a layer of hydraulic oil to the valve core during reassembly.

- Avoid dry assembly to prevent valve core damage.

- Check the return spring’s elasticity; press by hand to confirm quick rebound.

- Replace the spring immediately if elasticity is insufficient.

Power Supply Requirements
- Ensure precise power supply, voltage fluctuation ≤±10%.

- Example: For 220V rated voltage, 198V-242V is the safe range.

- Voltage beyond the range may cause the valve to operate weakly.

- Secure wiring firmly and tighten terminal blocks regularly.

- Prevent loose terminals from causing overheating issues.

Hydraulic Fluid Cleanliness & Routine Tests

- Maintain hydraulic fluid cleanliness; check the oil inlet filter monthly.

- Replace the filter screen promptly if clogged with impurities.

- Impurities may get stuck between valve core and sleeve, causing incomplete operation.

- Perform monthly power-on/off tests, listening for operation sound.

- Crisp click = normal operation; muffled sound/no response = disassemble and clean immediately.

- Follow the oil flow direction during installation; avoid reverse installation.

- Reverse installation leads to insufficient pressure and valve malfunction.

Brand Info
- YOYIK was established in 2006, a comprehensive manufacturing and processing enterprise.

- Deeply involved in electricity, petroleum, chemicals and other fields, with global product and service coverage.

- Independently produces power station key components and acts as an agent for well-known overseas brands.

- Ensures international standard quality, providing one-stop equipment selection and after-sales support.

The above is for reference only. Please contact me via email for specific details.

In the following text, you will see our extensive selection of spare parts for power stations:
#DF-BLADDER　NXQ-A-25-31.5-L-Y-DF
Seal oil pump (excluding motor) hsg120*4-42
Electric stop valve body J965Y-P5163I
Stop valve J65Y-P6160V
Replenish circulating water pump SDZA40-160D
servo valve S63JOGB4VPL
Lube oil pump of PA and FD Fan NB2-C32F
diaphragm DC3B3FB
Three-way valve J21H-250P 1Cr18Ni9Ti
Solenoid valve 4WE10D33/OFCG220N9K4
Stop valve J65Y-3500LB
globe valve J965Y-320 DN32 JB/T308
Trip solenoid valve 4WE6Y62/EW230N9K4
Submersible slurry pump 100SDZL-25
Mechanical seal 108-45
Pipe clamp SP214PADP-AS
Stop check valve JH62-16P
Rubber diaphragm for vessel 1419-11 f800 mm
Valve oil engine mechanical shut-off valve HGGDV-02-18-01A
PTFE pad YJM364-008
Electric stop valve J961Y-P56160V
The front cover DLZB820-R64A-3
Shaft seal 589332-00G
pressure hose S100-AC-AC-0500
Globe valve AWJ41F-25P
Sequence valve F3RG06D3
Electric stop valve J961Y-250 WCB
Centrifugal pump mechanical seal KCP125*100-200
Mechanical seal YCZ-250C
Coupler guard plate YOT51-05-02
pressure hose SMS-15/N1/4-2438mm-C
Solenoid valve DGMX-2-5-PP-BW-B-30
BLADDER　NXQ-A-25-31.5-L-Y

Relief valve RV3-16-S-0-13
overflow valve RPEC-LNN
solenoid valve J-220VDC-DN6-U/15/31C
EH oil pump coupling cushion ROTEX φ42
pressure relief valve YSF9-55/25-KJ
Hydrogen side sealed oil tank drain valve PYF-100
installation screen by switching piece JL1-2.5/2
BEARING,JOURNAL 100AY67X6-23
servo valve S15FOFA4VBLN
solenoid valve 34B0-H6B-T
Instrument valve J61Y-320P 12Cr18Ni9
Hydraulic unloading relief valve DB20-1-50B/315
O-ring rubber seal 15*2.5-G-S-GB/T3452.1
Seal kit Z960Y-20
HP ball valve KHB-M27×1.5-1212-02X
Ball valve W-BKH-22LX3-16-11251
The electromagnetic valve 4WE-6D62-EG110N9K4-V
Top shaft oil pump A10VSO71DFR1/32R-VPB22U99S2184
Machinery Seal DFB100-80-250-14
Stop valve J61Y-160I
Reducer M02225.OBMCC.IDI.5A
Vacuum stop valve DKJ940H-64
pressure hose SMS-10/N1/4-305mm-B
EH oil pump PVH098R01
pressure hose SMS-12-1829mm-C
Mechanical seal 105494
Oil pressure valve SV1-10V-C0-240AG
Overspeed protection control valve 165.31.56.03.01
mechanical seal CZ65-200
Main differential pressure regulating valve seal FISHR977HP
solenoid valve HQ16.16Z-6
BLADDER　NXQ-A-25-31.5-L-Y

DFYLCTY-2026-1-14-A