Check valve H14W-64P (NXQ-A-40/31. 5-LA One-way Charging Valve Nitrogen Charging Guide)
Product Introduction
Key Operation & Pressure Control Requirements (for NXQ-A-40/31. 5-LA Nitrogen Charging)
- Tool Preparation: Do not use a regular charging valve; a dedicated nitrogen charging tool set (equipped with a pressure gauge and preset pressure valve) is required to ensure operation efficiency and pressure accuracy.
- Secure Connection: Before connecting to the NXQ-A-40/31. 5-LA, release residual pressure in the accumulator first. Unscrew the charging valve's dust cap counterclockwise, align the tool's quick connector with the valve port and insert it until a "click" is heard, indicating a secure connectionthis method saves half the time compared to the traditional screw-tightening method.
- Pressure Preset & Charging: No repeated pressure adjustment is needed; use the tool's dial to set the required pressure. For example, if the system requires 20MPa, turn the preset pressure knob to the 20 mark, open the nitrogen cylinder valve, and the tool will automatically fill and stop when the set pressure is reached, preventing overfilling.
- Safe Disconnection & Inspection: After charging, do not disconnect the connector directly. First, open the tool's pressure relief valve to release residual pressure in the pipeline, then disconnect the connector to avoid oil spraying. Wait 5 minutes after charging, check the NXQ-A-40/31. 5-LA outlet pressure with a 0. 1MPa accuracy pressure gauge; readjust if the deviation exceeds 0. 5MPa.
- Matters Needing Attention: Nitrogen purity must be above 99. 9% to avoid gasket corrosion caused by impurities. Do not lose the charging valve's sealing gasket; reinstall it after each disassembly to prevent leakage. Following these steps, even beginners can complete nitrogen charging in half an hour without damaging the accumulator due to improper pressure.
Company Profile
- YOYIK widely adopts automation and CNC technology in production, and strict quality inspection processes ensure that each product meets the highest industry standards, winning wide recognition in the global market.
- To quickly respond to market demand, YOYIK has established an efficient supply chain system and a global service network, ensuring fast and timely product delivery both domestically and internationally. In addition, the company's 26-hour online technical support and all-round customer service further enhance customer satisfaction and trust.
Product Features & Applications
- Product Features: The H14W-64P check valve has high precision, reliable sealing performance and strong adaptability, matching the operating parameters of the NXQ-A-40/31. 5-LA one-way charging valve, assisting in safe and efficient nitrogen charging and protecting the accumulator system.
- Applications: Suitable for NXQ-A-40/31. 5-LA bladder accumulator systems, mainly used for auxiliary nitrogen charging control and system protection, applicable to related power station, industrial hydraulic and accumulator supporting scenarios, consistent with YOYIK's global service positioning.
We have diversified supply of various spare parts required for power stations, as follows:
#DF-Check valve H14W-64P-DF
IMO Oil pump KG70/KZ/7. 5F4
Stop valve J61W-25P
safety valve A1050
Pneumatic quick closing valve Q661H-64 SA-105
Stop valve J61Y-200P
Scissor pin JX-27
Electric regulating valve T967H-64
Hydraulic hose 35MPa 20mm
Stop valve PJ61Y-320
sealing ring HB4-56J8-87
Small AC oil pump coupling 70Y-34*2
Lubricating oil station oil pump PV2R3-76-RBAF1
Globe valve SHV6. 01Z
Quick closing valve LVDT(MEH)TD-1100S 0-110mm
Spherical Roller Bearing 24176CA/W33(DY-M25818)
servo valve SV4-20(15)57-80/40-10-S451
sealing ring HB4-56J8-138
Check valve H61H-16P
Mushroom valve BNXQ-A-10/15-L-Y
HPU Hydraulic Oil Pump 160YCY14-1B
Dome Valve P30668D-00
ELEMENT THERMOSTATIC VALVE 22125249
Sealing ring FK5G32-04-11
lock line φ1. 0*8m\516000002
insertion element CV1-25-X1-2-10
One-way check valve P-RVV28LR-WD
cooler TR-3
The electromagnetic valve 4WE6D6X/EW230N9K4/V
accumulator Nitrogen charger YAT-I 16MPa
Spring universal joint TH-85-M6-M8
one-way throttle valve fr2-16-s-0
Check valve H14W-64P
pressure hose S110-AC-FA-0250
Globe Valve 3-WD210-ER103-00003
Automatic shutdown solenoid valve 165. 31. 56. 04. 01
motorize valve Sr03GB32046A4
Stop valve J61Y-600LBR
Accumulator piston assembly NXQ-A-40L/31. 5-L
solenoid valve D1VW20BVZP92XB510
BLADDER NXQ-A-10/20 F Y
Check valve for oil pump outlet PA fan S15A1. 0
globe valve 65FWJ1. 6P
Fluorine rubber O-ring HY-SO-0012-V
Small engine lubricating oil cooler switching valve complete set of seals G22-0. 8
Stop valve J11T-10Q
coil 300AA00170A
Shaft seal 589332 FKM
solenoid valve VX235AZ1B
High pressure oil pipe F781C9D2252516-7500
mechanical seal HSNH280-43N
Accessories for accumulator NXQ-A1. 6/20-H-HT
EH oil pump PVH74(QI)C-RSM-1S-1X-C25-31
Vlv,Solenoid 4WE6D6X/EG110N9K4/V (REXRTOH)
PNEUMATIC ACTUATOR RP145DA
main oil pump HSN210-54
pressure hose S100-AC-AL-0400
Solenoid Valve CXD20
AST solenoid valve 3D01A011
Electric stop valve J961Y-320 WCB
Stop valve J61Y-P5540P
Three-way valve\three-way valve seal LXF50/1. 6C/P
Electric stop valve J961Y-420I
O-ring 3 1-75-33277-190
Check valve H14W-64P
DFYLCTY-2026-1-22-A



