DH Check Valve One-Way Valve Pressure Safety Main Relief Valve for Excavator Construction Machinery Hydraulic Pump Spare Parts

DH Check Valve One-Way Valve Pressure Safety Main Relief Valve for Excavator Construction Machinery Hydraulic Pump Spare Parts

 Key attribute

Product profile

• Specifically engineered for DH200-5, DH220-5/7, DH225-7, HD512, and HD820 series. No modifications required.
• Main relief valve maintains stable system pressure for smooth, responsive operation.
• Automatically relieves excess pressure to protect pumps, cylinders, and hydraulic lines from damage.
• Prevents oil backflow, ensuring stable load holding and reliable circuit isolation.
• High-strength materials withstand extreme pressure, vibration, and harsh job site conditions.

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GVO Value

  GVO is a professional manufacturer and exporter of excavator parts, founded in 2017 in Guangzhou, China.Our team is made up of professionals who have worked in the hydraulic industry for many years. From model confirmation, quality inspection, warehouse management, to logistics and after-sales support, every step is handled by experienced people.

  Because our team is professional, we help you confirm the model and avoid mistakes. Because our team is responsible, we check every part before shipping to ensure quality. Because our team is stable, we respond after the sale — you won't be left without support.

  Whether you are a distributor, a construction team, a repair shop, or an individual machine owner — no matter the order size — we treat everyone the same. Our products are exported to more than 30 countries and regions across Asia, Africa, Europe, and the Americas. We hope to become your trusted long-term parts partner.

GVO — Precision Components. Global Supply. Trusted Partnership.