Proportional Solenoid Valve Coil
Product Description: Proportional Solenoid Coil for Variable Flow Control (R900021389) The proportional solenoid coil from Flying Bull is a high-performance electromagnetic component designed for proportional speed-regulating valve applications. This coil (Model GP37-S-H, OE No. R900021389) provides precise electromagnetic force that is directly proportional to the input current, enabling smooth and accurate flow regulation in hydraulic systems. It is an ideal choice for applications requiring variable flow control, such as injection molding machines, hydraulic presses, mobile equipment, and construction machinery. Precise Control and Robust Construction This coil operates on a stable 12V DC supply, matching the standard electrical systems found in many hydraulic control units. Its key feature is excellent linearity, meaning the output force changes predictably and proportionally with the input signal. This allows for fine, stepless control of valve spool position, resulting in smooth actuator movement and precise pressure or flow regulation. The coil features a triple connector design for a secure and reliable electrical connection, ensuring consistent performance even in high-vibration environments. It is engineered for ordinary pressure hydraulic systems and is compatible with oil as the working medium. Durability and Maintenance The coil is constructed for demanding environments with high coil efficiency and robust construction. As a 100% brand-new unit, it is backed by a 1-year warranty and manufactured to high-quality standards, drawing on over 15 years of brand production experience. To ensure a long service life, follow these simple maintenance guidelines: Daily Inspection: Visually check the coil for any deformation, cracks, or corrosion. Ensure all connections are secure and solder joints intact. Perform functional testing to verify there are no short circuits or open circuits. Regular Cleaning: Periodically remove dust, oil, and other contaminants from the coil surface. Clean the housing using a suitable cleaning solution or water, but avoid using sharp objects that could scratch or damage the coil. By following these practices, you can minimize hydraulic system issues caused by coil failure and reduce the frequency of replacements, making this coil a cost-effective choice for wholesale customers and equipment maintenance teams.
Product Introduction
Products Description
I. Product Type & Basic Specifications
This product is a solenoid valve coil, categorized under coil components. The brand is FLYING BULL, and all units are supplied as 100% new and genuine, sourced directly from the original factory. Designed to operate with oil as the medium, it serves as a compatible coil for proportional solenoid valves in oil pump systems. As a key component of construction machinery hydraulic control systems, it meets wholesalers' procurement needs for standardized hydraulic valve coils.
II. Electrical Performance & Voltage Specifications
The coil operates at a stable 12V DC, precisely matching the 12V power supply used in hydraulic control systems-such as oil pump proportional solenoid valves-in construction machinery. This ensures reliable coil activation in the circuit, reduces the risk of equipment failure due to voltage mismatch, and offers strong adaptability.
III. Operating Pressure
The coil is rated for standard pressure, making it suitable for the normal pressure conditions in most construction machinery hydraulic systems. It can be directly applied in common hydraulic control environments without requiring additional pressure adjustments, lowering the threshold for customer use and providing wide compatibility.
IV. Durability & Service Life
The product comes with a one-year warranty and is manufactured to high-quality standards, backed by over 15 years of brand production experience. Regular routine maintenance, such as periodic inspections and cleaning, can further extend its stable operating life. This helps minimize hydraulic system issues caused by coil failure and reduces after-sales replacement costs and frequency for wholesaler customers.
V. Maintenance Guidelines
Daily Inspection: Visually check the coil for any deformation, cracks, or corrosion. Ensure all connections are secure and solder joints intact. Conduct functional testing to verify there are no short circuits or open circuits.
Regular Cleaning: Periodically remove dust, oil, and other contaminants from the coil surface. Clean the housing using a cleaning solution or water, but avoid using sharp objects that could scratch or damage the coil.
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OE NO.: R900021389
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Media: Oil |
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Warranty: 1 YEAR |
Condition:New, 100% Brand-new |
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Place of Origin:Zhejiang, China |
ltem:coil |
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Brand Name:FLYING BULL |
Quality:High-Quality |
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Delivery:5-7 Working Days |
Pressure:Ordinary Pressure |
Company Introduction
Frequently Asked Questions (FAQs)
1. What is the core application and matching medium of this solenoid coil?
This product (Model GP37-S-H, OE No. R900021389) is a solenoid valve coil designed to work with oil as the medium. It serves as a matching coil for proportional solenoid valves in hydraulic systems. It is a key component of construction machinery hydraulic control systems, but is also ideal for injection molding machines, presses, and mobile equipment requiring variable flow control.
2. What electrical specification does this solenoid coil follow?
The coil operates at a standard 12V DC. This precisely matches the 12V power supply systems of hydraulic control devices commonly used in construction machinery and industrial equipment, ensuring reliable activation and stable performance without the need for voltage conversion.
3. What working pressure condition is this solenoid coil suitable for?
It is engineered for ordinary pressure working conditions, which aligns with the conventional pressure requirements of most hydraulic systems. No extra pressure adaptation or modification is needed-it can be directly installed and used in standard pressure hydraulic control scenarios.
4. What makes this a "proportional" solenoid coil, and why is that important?
Unlike a standard on/off solenoid, a proportional coil generates a magnetic force that is directly proportional to the input current. This allows for precise, stepless control of the valve spool position, enabling smooth acceleration, deceleration, and accurate flow or pressure regulation. This is essential for applications requiring fine control, such as injection molding or mobile equipment movements.
5. What are the recommended maintenance practices for this coil?
Daily Inspection: Visually check for deformation, cracks, or corrosion. Ensure all connections are secure and solder joints are intact. Test for short circuits or open circuits.
Regular Cleaning: Periodically remove dust, oil, and other contaminants from the coil surface. Clean the housing with a suitable cleaning solution or water, but avoid using sharp objects that could scratch or damage the coil.
6. What warranty and delivery terms are offered for this product?
The coil is 100% brand new and comes with a 1‑year warranty against manufacturing defects. Damage from overvoltage, contamination, or improper installation is not covered. Delivery takes 5–7 working days from Zhejiang, China. Bulk orders and custom packaging options are available upon request.
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