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GVO Swing Motor Check Relief Valve for Excavator DH300 340 370-7-9
Key attributes
Name
Swing Motor Check Relief Valve
Packing
Carton
Model
DH300 340 370-7-9
Certificate
CE, ISO
Stock
In stock
Delivery
3-15 Days
MOQ
1PC
Shipping port
Huangpu,Guangzhou
Critical Overload Protection: The primary advantage of this valve is its ability to protect the swing motor and other expensive hydraulic components from damage caused by pressure spikes. When the excavator's swing movement encounters an obstacle or stops suddenly, it creates a sudden pressure surge. The relief valve instantly opens to divert this excess hydraulic fluid back to the tank, preventing catastrophic failure.
Smooth and Controlled Braking: The valve works in conjunction with the swing motor's internal braking system. By regulating the pressure that builds up when the swing motion is stopped, it ensures a smooth, controlled deceleration rather than an abrupt and jarring halt. This prevents damage to the swing drive and reduces operator fatigue.
Built-in Anti-Cavitation Protection: The check valve portion of the assembly is crucial for preventing cavitation. When the swing motor is suddenly stopped, the motor can create a vacuum on its inlet side. The check valve opens to allow makeup oil to flow in, filling this vacuum and preventing the formation of destructive air bubbles that can erode internal components and cause premature wear.
If you need other relief valves, send us the related details please:
1.The pictures
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GVO Value
We're Not Just a Company. We're a Team.
Behind every order is a person who cares about getting it right. Our team is made up of professionals who know excavator parts inside out — and who treat every customer like they're our only customer.
Who We Are
Parts Specialists – Years of experience matching parts to machines
Customer Support – Responsive, clear, and always available
Warehouse Team – Efficient, careful, and fast
Quality Control – Detail-oriented and committed to accuracy
What Unites Us
We take pride in what we do
We solve problems, not just take orders
We believe in honesty, speed, and follow‑through
We're here to make your job easier
We don't work for a company. We work for you.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
2012
Total Annual:
7500000-12000000
Employee Number:
100~150
Ecer Certification:
Verified Supplier
Who we are: We are excavator spare parts manufacturer to do high quality products
What we do: Our supply chain covers engine parts, hydraulic parts, relief valves, pilot pumps, gear parts electrical parts, seals, bearings, we serve the domestic market and overseas markets, in the field of excav... Who we are: We are excavator spare parts manufacturer to do high quality products
What we do: Our supply chain covers engine parts, hydraulic parts, relief valves, pilot pumps, gear parts electrical parts, seals, bearings, we serve the domestic market and overseas markets, in the field of excav...