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HD250 Excavator Control Valve Secondary Safety Relief Valve Assembly
Boom, arm, and bucket overload protection in control valve system . Precision-engineered replacement assembly manufactured with hardened alloy steel components for reliable hydraulic protection in demanding construction environments .
Failure Symptoms
Weak
or drifting boom under load
Arm
dropping during lifting
Bucket
pressure relief failure
Compatible Models
HD250 Excavator
Technical Specifications
Parameter
Specification
Product Type
Secondary Safety Relief Valve Assembly
Compatible Machine
HD250 Crawler Excavator
Function
Boom, arm, and bucket overload protection in control valve system
Material
Hardened Alloy Steel
Application
Excavator Hydraulic Control Valve System
Warranty
3 Months
Company Profile
ABOUT US
Guangzhou Xingfan Precision Oil Pressure Co. , Ltd. focuses on the after-market hydraulic maintenance and replacement of construction machinery including excavator, rotary drilling rig, pile driver, concrete mixer, delivery pump truck, crane, harvester and other equipment . Including hydraulic pump, traveling motor, rotary motor, distribution valve multi-way valve, gear pump, operating handle, walking foot valve, etc .
Factory Display
">FAQ
Q1 : What does this Secondary Safety Relief Valve do in the HD250 excavator ?
This valve provides boom, arm, and bucket overload protection in control valve system . It is a critical component in the HD250 excavator hydraulic control system . Symptoms of a failing valve include : weak or drifting boom under load; arm dropping during lifting; bucket pressure relief failure .
Q2 : Is this valve compatible with my HD250 excavator ?
Yes, this secondary safety relief valve is specifically designed for HD250 excavator control valve assemblies . Please provide your machine serial number for exact fitment confirmation within 24 hours .
Q3 : What material is the secondary safety relief valve made of ?
The valve body is precision-machined from hardened alloy steel with heat treatment for wear resistance . Internal components undergo strict dimensional and pressure testing before assembly to ensure reliable operation under demanding hydraulic conditions .
Q4 : Do you provide installation support for this Secondary Safety Relief Valve ?
We recommend installation by a qualified hydraulic technician . Our engineers provide torque specifications, pressure calibration guidance, and troubleshooting support via video call or email . Proper installation ensures optimal valve performance and system reliability .
Q5 : What is the warranty and delivery time for the HD250 Secondary Safety Relief Valve ?
We offer a 3-month warranty on all HD250 secondary safety relief valve assemblies . Standard delivery is 15-30 days with export-standard packaging . Payment via T/T, Western Union, or PayPal is accepted . Volume pricing available for bulk orders .
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2022.11.18
Total Annual:
5000000-10000000
Employee Number:
5~10
Ecer Certification：
Verified Supplier
Guangzhou Xingfan Precision Oil Pressure Co. , Ltd. focuses on the after-market hydraulic maintenance and replacement of construction machinery including excavator, rotary drilling rig, pile driver, concrete mixer, delivery pump truck, crane, harvester and other equipment . Including hydraulic p...
Guangzhou Xingfan Precision Oil Pressure Co. , Ltd. focuses on the after-market hydraulic maintenance and replacement of construction machinery including excavator, rotary drilling rig, pile driver, concrete mixer, delivery pump truck, crane, harvester and other equipment . Including hydraulic p...
