Check valve H40H-64 (NXQ-A-25/20-LY Gasket Fault Judgment & Replacement Guide)

Product Introduction

Key Operation: NXQ-A-25/20-LY Gasket Fault Judgment & Replacement

• Fault Judgment Methods: Two practical methods can quickly determine if the NXQ-A-25/20-LY sealing gasket is faulty. First, observe the pressure drop rate: a normal accumulator should not drop more than 0. 5 MPa in 24 hours; if it drops by 3 MPa in half a day, check the air filling valve interfacespray soapy water, and bubbles indicate gasket leakage. Second, disassemble and inspect: unscrew the air filling valve, take out the internal NXQ-A-25/20-LY gasket, and check for surface deformation, cracks, or hardened oil stains, which are all signs of gasket failure.
• Gasket Replacement Steps: Replacement is simple and requires no special tools, only a flathead screwdriver. First, release the accumulator pressure, unscrew the inflation valve, and gently pry out the old gasket with the screwdriver. Soak the new NXQ-A-25/20-LY gasket in fire-resistant oil for 10 minutes to soften it, then align it with the groove on the valve seat and gently tap it flat with the screwdriver handledo not place it crookedly to avoid re-leakage.
• Reinstallation & Inspection: When reinstalling the inflation valve, turn it clockwise until resistance is felt, then tighten it another half turn with a wrenchdo not use excessive force to avoid damaging the gasket. After replacement, pressurize with nitrogen for pressure testing; a pressure drop within 0. 3 MPa after 24 hours is acceptable. It is recommended to keep a few packs of NXQ-A-25/20-LY spare gaskets in inventory; they are inexpensive and can be replaced immediately in case of leakage, saving several days compared to waiting for manufacturer on-site service.

Company Profile

• YOYIK, integrating R&D, production and sales, is based in Deyang and focuses on the in-depth development and customization of special spare parts for power plants. The company's products are widely used in chemical, electric power and steel industries.
• From sealants, insulation materials to pump valve sensors, each product represents high industry standards. Adhering to integrity management and service first, YOYIK continues to create value for global customers.

Product Features & Applications

• Product Features: The H40H-64 check valve has high pressure resistance (matching the 64 pressure level), reliable sealing performance and strong compatibility, perfectly matching the NXQ-A-25/20-LY accumulator. It assists in maintaining system pressure stability and reducing leakage risks caused by gasket faults.
• Applications: Suitable for NXQ-A-25/20-LY accumulator systems, widely used in chemical, electric power, steel and other industrial fields that require stable accumulator pressure, consistent with YOYIK's positioning of power plant special spare parts R&D and customization.