TR55 Directional control valve
HSSD series： HSSD4、HSSD5、HSSD6、HSSD8、HSSD11、HSSD14、HSSD15、HSSD18、HSSD25、HSSD8－1、HSSD8－2
E-mail: hyd-sales2009@outlook.com
Parameter Specification of TR55 Directional Control Valve
1. Model Interpretation
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TR: Series identifier, representing the TR series directional control valve, which is designed with compact structure, reliable performance and strong adaptability to harsh working environments;
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55: Specification code, indicating the nominal size and flow grade of the valve, which determines the maximum flow capacity and installation dimension of the valve, and is the core parameter for matching hydraulic systems.
2. Core Technical Parameters
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Parameter Name
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Specification
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Unit
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Valve Type
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4/3 Way Directional Control Valve (Spring Centered)
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–
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Rated Operating Pressure
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21
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MPa (3050 psi)
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Maximum Pressure
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31.5
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MPa (4570 psi)
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Rated Flow
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100
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L/min
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Maximum Flow
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120
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L/min
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Control Mode
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Solenoid Control (Optional: Manual Emergency Control)
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–
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Solenoid Voltage
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DC 24V / AC 220V (Standard Configuration)
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V
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Port Size
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G 3/4 (Inlet/Outlet), G 1/2 (Control Port)
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–
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Neutral Function
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O-Type (All Ports Closed), Optional A/B-Type
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–
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Material
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Valve Body: Cast Iron; Spool: Alloy Steel; Seal: Nitrile Rubber (NBR)
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–
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3. Performance Parameters
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Response Time: ≤ 0.03 s (solenoid control), fast response, ensuring precise control of executive components;
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Leakage: ≤ 0.1 mL/min (under rated pressure), good sealing performance, effectively reducing energy loss and improving system efficiency;
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Pressure Loss: ≤ 0.3 MPa (at rated flow), low flow resistance, reducing the burden of hydraulic pump;
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Service Life: ≥ 100,000 cycles of commutation, stable performance, meeting the long-term operation needs of industrial equipment;
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Flow Coefficient (Cv): 18, ensuring stable flow control within the rated flow range.
4. Installation & Working Conditions
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Mounting Type: Flange Mounting, consistent with standard hydraulic valve installation dimensions, easy to assemble and disassemble, and convenient for system integration;
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Mounting Direction: Vertical Installation (preferred), horizontal installation is allowed, but it is necessary to ensure that the spool moves smoothly without jamming;
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Working Medium: Hydraulic Oil (ISO VG 32/46/68), the oil should be free of impurities to avoid wear of spool and seal components;
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Working Temperature: -10℃ ~ 80℃ (ambient temperature), the oil temperature is recommended to be controlled within 30℃ ~ 60℃ for long-term stable operation;
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Oil Cleanliness: NAS 8 class or higher, which can effectively extend the service life of the valve core and seal;
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Installation Notes: The arrow on the valve body indicates the direction of medium flow, which should be consistent with the actual flow direction of the pipeline; avoid collision during installation to prevent damage to the valve body and internal components.
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Application Scope: Suitable for industrial machinery, construction machinery, hydraulic stations, injection molding machines and other hydraulic systems that require precise control of oil flow direction and on-off.
5. Other Specifications
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Drive Method: Solenoid Drive (electric control), with manual emergency control function, which can manually operate the valve core when the power is cut off to ensure the safety of the system;
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Weight: Approximately 12 kg (depending on specific configuration and control mode);
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Design Standard: Complies with international hydraulic valve technical standards, with mature structure, strong interchangeability of accessories and good compatibility with various hydraulic systems;
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Maintenance: Regular inspection of solenoid coil and seal is recommended (inspection cycle is 1500 working hours); the seal should be replaced in time if aging or leakage is found; the valve core should be cleaned regularly to avoid jamming caused by impurities.
Process steps：
Customer inquiry: Customers will make inquiries before placing an order to understand product details and communication needs.
Quotation: According to customer needs, provide a formal quotation, including the name, model, quantity, delivery time, payment method, etc. of the goods.
Order confirmation: After the customer confirms the quotation, a formal purchase order will be placed.
Confirm the delivery time: communicate the delivery time with the production department, inform the factory of the order details, and arrange the production plan.
Sign an export contract: After the two parties confirm that it is correct, sign an export contract to establish a trade relationship.
Implement the letter of credit (if applicable): If the payment method of the letter of credit is used, the customer needs to be urged to issue the certificate and review the contents of the letter of credit.
Export stocking: According to the requirements of the contract and the letter of credit, arrange production, purchase raw materials and packaging, and prepare the goods.
Chartering and booking: Contact the freight forwarder to make a booking and arrange the transportation of goods.
Export inspection: Apply to the quality inspection department for export commodity inspection and provide relevant documents.
Apply for a write-off slip: apply for a write-off slip from the foreign exchange management department for subsequent foreign exchange write-off.
Export declaration: Declare exports to the customs and provide documents such as power of attorney for customs declaration, customs declaration form for export goods, commercial invoice, packing list, etc.
