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Taizhou Saiyi Hydraulic Machinery Co.,Ltd are Hydraulic pump manufacturer since2003.Basedon excellent quality and professional technical support,We get much praise all over the world.Toservice our customers overall,We began to collect multiple high-quality hydraulic products since2019.We are becoming system integration supplier.Now our product applications areengineering and construction machinery,mining and extraction equipment,agriculturalforestry,municipal vehicles,marine equipment,metallurgy and metal forming,rubber andgeneral technology, injection and casting machinery.Our mission:Focus on customer needs, create value for customers,shareholders,employees andsociety in the hydraulic field.
Hydraulics drive the world!We are having greatpassion on it to make the world morebeautiful.Hope youjoin us and have a win-win cooperation together.




H*B Series Solenoid Directional Control Continenta Hydraulic Cartridge Valves
HB-type jointly designed solenoid directional valve** is a commonly used hydraulic control component, primarily used to control the flow direction of hydraulic fluid in a hydraulic system. Its working principle is based on the engagement and release of the solenoid, which changes the position of the spool to switch the flow paths. Below is a detailed explanation of its working principle.The HB-type solenoid directional valve is widely used in the following fields:
- **Construction Machinery**: Hydraulic systems in excavators, bulldozers, etc.
- **Industrial Equipment**: Hydraulic control in injection molding machines, die-casting machines, etc.
- **Agricultural Machinery**: Hydraulic systems in tractors, etc.
- **Marine Equipment**: Hydraulic control in steering gears, winches, etc.
| Maximum Working Pressure (P, A, and B) | 31.5 MPa |
| Maximum Dynamic Pressure at T Port | 6.3 MPa |
| Maximum Static Pressure at T Port | 6.3 MPa |
| Rated Flow Rate | 10 L/min (min) | 60 L/min (max) |
| Maximum Flow Rate | 20 L/min (min) | 80 L/min (max) |
| Liquid Medium | Mineral-based hydraulic oil, phosphate ester hydraulic oil |
| Oil Temperature Range | -20°C to +80°C |
| Oil Cleanliness | ISO 4572: β10 ≥ 75 NAS 1638: Class 9 |

Q1:Can you provide a sample to check quality before the big order?
A:Yes, we can .
Q2:Can I have my brand on the products?
A:We can give you OEM depend on the quantity.
Q3:How about your quality?
A:Many industry& mobile machine manufacturers is our customer in China and over the world.
We test the goods one by one before delivery to confirm the quality.
Q4: How long has your company run in Hydraulic Fields?
A:Over 10 years
Q5: Which payment terms do you accept?
A:L/C T/T D/A D/P Western Union Paypal Money Gram
Q6: What is your delivery time?
A:It depends on whether the products you buy is in stock.If in stock, ship it within 1-3days,
if not, we can discuss and we will arrange your order as soon as possible.
Q7: What's the warranty of your products?
A:12 months~18months after shippment.