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BST-06-2B3B-D24-N Yuken Solenoid Controlled Relief Valve

Model Number

S-BSG-03-V-2B2B-A240-52, BST-06-V-2B3B-D24-N-48, BST-06-2B3B-D24-N-4780

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Product Description

Product Overview

The BST-03, BSG-06, BSG-10, BST-06-2B3B-D24-N-4780, BST-06-V-2B3B-D24-N-48 and S-BSG-03-V-2B2B-A240-52 belong to the Yuken BST/BSG series of solenoid controlled relief valves. These valves integrate a pilot-operated relief valve with a solenoid directional valve into a single compact unit, eliminating external piping. They enable remote pump unloading via electrical signals or multi-pressure control when combined with remote pilot relief valves. Optional models with vent restrictors reduce pressure shocks during unloading. Fully interchangeable with original Yuken BST/BSG units, every valve undergoes 100% simulated operating-condition testing for reliable remote pressure control and energy-saving unloading in hydraulic systems.

Technical Specifications 

  • Model: BST-06-2B3B-D24-N / BSG-06 / BST-03 / BSG-10 etc. (BST/BSG series)
  • Type: Solenoid controlled relief valve (pilot-operated relief + solenoid directional valve integrated)
  • Maximum operating pressure: 25 MPa
  • Maximum flow: Size 03 approx. 100 L/min; Size 06 approx. 200 L/min; Size 10 approx. 400 L/min
  • Pressure adjustment range: up to 25 MPa (depending on pilot setting)
  • Connection: Threaded (BST) or Sub-plate (BSG)
  • Solenoid voltage: common D24 (24 V DC), A240 (AC 240 V) etc.
  • Vent types: 2B3B, 2B3A, 2B2B, 3C2, 3C3 etc.
  • Optional features: High venting pressure (V), Vent restrictor (A)
  • Weight: Single solenoid approx. 6.3–7.4 kg; Double solenoid approx. 7.1–11.3 kg (size-dependent)
  • Hydraulic fluid: Petroleum-based (special seals available for phosphate ester)

Key Technical Advantages

  1. Compact integrated design: Solenoid valve mounted directly on the relief valve eliminates external piping, reduces potential leak points and simplifies installation.
  2. Remote unloading and multi-pressure control: Electrical signals enable no-load pump operation; combination with remote pilot valves allows two- or three-pressure system control for energy savings.
  3. Optional vent restrictor for shock reduction: Models with 2B3A/2B3B vent restrictors provide smooth unloading and effectively suppress pressure shocks and vibration.
  4. True interchangeability and proven reliability: Identical interfaces and performance to original Yuken BST/BSG series enable direct drop-in replacement; 100% simulated operating-condition testing ensures long-term stability.

Application Areas

  • Remote unloading on injection molding and die-casting machine hydraulic systems
  • Multi-pressure control on hydraulic presses and forging equipment
  • Energy-saving circuits on machine tools and industrial power units
  • Pressure management on construction and mobile machinery
  • Systems requiring electrically remote-controlled relief

Expert Maintenance Tips

Ensure clean interfaces and tighten to the specified torque during installation. Maintain required fluid cleanliness to protect the pilot spool. Match solenoid voltage and polarity correctly to avoid over-voltage damage. Periodically verify set pressure and unloading action. If pressure becomes unstable, first inspect fluid contamination and pilot filtration. For long-term storage keep the valve filled with oil and cycle periodically. Always use original-specification seals when servicing to maintain sealing performance.

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S-BSG-06-V-2B2B-A100-N-R-52 7.5KG
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S-BSG-06-V-3C3-A100-N-R-52 7.5KG
S-BSG-06-V-3C3-A120-52 7.5KG
S-BSG-06-V-3C3-A120-R-52 7.5KG
S-BSG-06-V-3C3-A120-N-52 7.5KG
S-BSG-06-V-3C3-A120-N-R-52 7.5KG
S-BSG-06-V-3C3-A200-52 7.5KG
S-BSG-06-V-3C3-A200-R-52 7.5KG
S-BSG-06-V-3C3-A200-N-52 7.5KG
S-BSG-06-V-3C3-A200-N-R-52 7.5KG
S-BSG-06-V-3C3-A240-52 7.5KG
S-BSG-06-V-3C3-A240-R-52 7.5KG
S-BSG-06-V-3C3-A240-N-52 7.5KG
S-BSG-06-V-3C3-A240-N-R-52 7.5KG
S-BSG-06-V-3C3-D12-52 7.5KG
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S-BSG-06-V-3C3-D48-N-52 7.5KG
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S-BSG-10-2B3A-A200-N-52 13KG
S-BSG-10-V-2B3A-A200-N-52 13KG
S-BSG-10-2B3A-A240-N-52 13KG
S-BSG-10-V-2B3A-A240-N-52 13KG
S-BSG-10-2B3A-D12-N-52 13KG
S-BSG-10-V-2B3A-D12-N-52 13KG
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Company Profile

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Frequently Asked Questions

1.Hydraulic pump
2.Hydraulic valve
3.Hydraulic motor
4.Hydraulic cylinder
5.Hydraulic parts

MOQ: 1pcs— we support sample and small quantity orders.
  • Adhere to quality first.
  • Support customization, ODM & OEM service.
  • 1-year warranty and complete after-sales support.
  • Safe and fast shipping worldwide.
  • 24-hour online service for your inquiries. 
 
Yes, we are a manufacturer with our own factory.
Common models are in stock, and orders are usually shipped within 1–3 days.
We accept T/T, L/C, PayPal, VISA, Western Union, Apple Pay, Google Pay, Afterpay (Clearpay), Klarna, and Trade Assurance.
 
For full orders: 30% deposit, balance before shipment.
For small/sample orders: full payment in advance.
We offer flexible shipping options: DHL, UPS, FedEx, TNT, EMS, as well as air or sea freight.
 
All deliveries ensure door-to-door fast and safe service.
 
All products are tested before shipment to ensure perfect working condition.
 
We offer a 12-month warranty — if a product fails due to quality issues, we provide free spare parts or repair support.
 
If you encounter any problem during use, please contact your sales manager or our support team at any time.
 
We will respond quickly and help solve the issue efficiently.
  • Hydraulic systems
  • Agricultural machinery
  • Construction machinery
  • Automobile industry
  • Local distributors and maintenance centers 
Yes. We offer competitive wholesale prices and try our best to give benefits to long-term partners.
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