The two-stage nozzle-baffle mechanical feedback (MFB) flow control servo valve is designed specifically for industrial hydraulic closed-loop systems. It can convert low-power electrical signals into high-precision hydraulic flow output, enabling precise control of the actuator's position, speed, and force.
Technical Specifications
(Custom configurations available upon request.)
| Model | HB 606 | | |
| Rated flow rate | 15 L/min(4 gpm) | | |
| Maximum continuous working pressure | 210 bar(3000 psi) | | |
| Minimum pilot oil pressure | 14 bar(200 psi) | | |
| Return oil allows back pressure | ≤70 bar(1000 psi) | | |
| Median leakage | ≤1.6 L/min | | |
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Drawings & Dimensions
Our engineering team can provide tailored designs to meet specific project requirements.
Changsha HaoBo Brothers Technology Co., Ltd.
Changsha HaoBo Brothers Technology Co., Ltd. Was founded in 2015 and established by three like-minded mechanical engineers with backgrounds in the petrochemical, mining, and metallurgical industries. The company was created to address key industry challenges by delivering high-quality, cost-effective mechanical equipment and components through integrated engineering solutions, tailored to the specific needs of clients in the petrochemical, mining, and metallurgical sectors.
From 2015 to 2017, the company operated by supplying custom-engineered equipment (through outsourced manufacturing) alongside imported European and American spare parts, serving both domestic and international customers across the petrochemical, mining, plastics, and metallurgical industries.
In 2017, Changsha HaoBo Brothers Technology Co., Ltd. Invested in and established a joint-venture factory focused on manufacturing equipment and components for the metallurgical industry, as well as air compressors, large-scale pumps and valves, blowers, and related machinery for the petrochemical and mining sectors.
In 2022, the company further invested in another joint-venture factory dedicated to producing equipment and accessories for the plastics industry.
To date, the group's core business operations encompass the following:
- With branch offices established in Germany and the United States, we source and supply European and American brand spare parts and equipment to clients in the petrochemical, mining, plastics, and metallurgical industries.
- Through our joint-venture factories in China, we manufacture equipment and spare parts for the metallurgical, petrochemical, mining, and plastics industries.
- We act as authorized distributors for select equipment from leading domestic manufacturers, supplying these products to clients in the metallurgical, petrochemical, metallurgy, and plastics industries.
Q: What's the lead time for orders?
A: Standard models ship in 15–30 days; customized models depend on the specific product.
Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.
Q: Can I request a customized valve size?
A: Absolutely! We offer tailored attachments.
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.
