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  • Direct Acting Spool Sequence Valve
  • Direct Acting Spool Sequence Valve
  • Direct Acting Spool Sequence Valve
  • Direct Acting Spool Sequence Valve

Direct Acting Spool Sequence Valve

Direct Acting Spool Sequence Valve are threaded hydraulic cartridge valves designed to control the operating sequence of hydraulic circuits. Featuring a direct-acting spool design with internal pilot control and an internally drained spring chamber, these valves open automatically when the primary circuit reaches a preset pressure, allowing oil to flow to a secondary circuit. They are commonly used where multiple hydraulic functions must operate in a predetermined order.

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Specific Applications

·Secondary hydraulic circuit control
·Hydraulic power units (HPUs)
·Hydraulic manifold blocks
·Construction and mining equipment
·Agricultural machinery
·Industrial automation equipment
·Machine tools
·Multi-actuator hydraulic systems

Core Functions

Automatic Sequential Operation
The Sequence Valves remain closed until the primary hydraulic circuit reaches the preset pressure. Once the pressure setting is achieved, the valve opens automatically to supply oil to the secondary circuit, ensuring the required operating sequence.

Direct-Acting Spool Design
The direct-acting sequence valve features a spool-type structure with internal pilot control and an internally drained spring chamber, providing stable pressure response and reliable switching performance.

High Pressure Capability
Designed for industrial hydraulic applications, the valve supports a maximum operating pressure of 240 bar, making it suitable for pressure-controlled sequencing in hydraulic systems.

Stable Pressure Regulation
The hydraulic cartridge sequence valve has an internal leakage of up to 80 cc/min at 85% of the nominal pressure setting, providing predictable pressure control for secondary circuit activation.

Wide Operating Temperature Range
The valve operates within a temperature range of -30°C to +120°C. Hydraulic oil filtration of 20 μm or better is recommended to maintain stable spool movement and extend valve service life.

The performance data above are based on Model XPS-08.

Technical Specifications

Parameter

Specification

Product Name

Direct Acting Spool Sequence Valve

Installation

Threaded Hydraulic Cartridge Valve

Representative Models

XPS-08, XPS-10

Maximum Operating Pressure

240 bar*

Flow Capacity

See Pressure Drop vs. Flow Curve

Internal Leakage

Max. 80 cc/min at 85% of nominal pressure setting*

Operating Temperature

-30°C to +120°C*

Recommended Oil Filtration

20 μm or better*

Cavity

08-3

*Performance data are based on Model XPS-08. Specifications may vary depending on the selected model.


DirectActingSpoolSequenceValve

Function Choice Part Number Cavity Flow(Ipm) Pressure(bar) Page
DirectActingSpoolSequenceValve1 XPS-08 08-3 22  207  C-29
XPS-10 10-3 34  207  C-30
OEM / ODM Customization

We provide OEM and ODM services for hydraulic cartridge sequence valves to meet different hydraulic system requirements.
·Pressure setting customization
·Thread and cavity customization
·Seal material options for different hydraulic fluids
·Custom logo and laser marking
·Packaging customization
·Hydraulic manifold integration support
·Technical assistance for model selection and equivalent replacement

Purchasing Information

Item

Details

MOQ

Standard cartridge valves: 100 pcs/model; Custom manifold blocks: 30 pcs minimum. Small trial orders are accepted.

Lead Time

Stock valves: 2 weeks; Regular orders: 6–8 weeks; Custom products: about 8 weeks after drawing approval and deposit.

Payment Terms

30% T/T deposit, 70% balance before shipment. Sample orders require full payment. L/C is negotiable for long-term customers.

Trade Terms

FOB Ningbo by default. CIF quotations are available upon request.

Sample Policy

Stock samples are available. OEM/ODM samples can be produced based on drawings or samples.

OEM / ODM

Logo engraving, customized packaging, and product customization are supported.

Quality Assurance

Every valve is pressure-tested before shipment and covered by a 12-month warranty.

 

FAQ

1. What is a hydraulic sequence valve used for?
A hydraulic sequence valve controls the operating order of multiple hydraulic circuits. It opens only after the primary circuit reaches a preset pressure, allowing oil to flow to a secondary circuit.

2. Which models are available in this series?
Representative models include XPS-08 and XPS-10. Different models are available to suit various hydraulic system capacities and installation requirements.

3. Are all models supplied with the same technical specifications?
No. The technical data shown on this page are based on Model XPS-08. Pressure ratings, flow characteristics, cavity dimensions, and pressure settings may vary depending on the selected model.

4. What oil cleanliness is recommended?
For reliable valve performance and longer service life, hydraulic oil filtration of 20 μm or better is recommended.

5. How can I choose the right Direct Acting Spool Sequence Valve?
Selection depends on operating pressure, required sequence pressure, flow rate, cavity size, hydraulic fluid, and circuit design. Our engineering team can recommend the appropriate Sequence Valves Direct Acting Spool Type model based on your application requirements.

products
Though compact in size, hydraulic valves deliver critical functions as indispensable core components enabling multi-functional and automatic operation of mechanical equipment.
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Ningbo Stars Hydraulic Co., Ltd.

Founded in 2001, Ningbo Stars Hydraulic Co., Ltd. is a hydraulic valve manufacturer that upholds integrity and wins market recognition through superior quality and pragmatic craftsmanship. We introduced hydraulic valve technologies from Germany’s Rexroth and Japan’s Yuken series, and through years of dedicated research, digestion, absorption, modification and optimization, our products stand out in the market. Our valves sell well nationwide and are exported to overseas markets, earning praise and trust from numerous customers at home and abroad. Though compact in size, hydraulic valves deliver critical functions as indispensable core components enabling multi-functional and automatic operation of mechanical equipment. The quality of a hydraulic valve largely determines the overall operating performance of the entire machinery. Supported by national industrial policies, China’s machinery industry is striving to catch up with European and American counterparts to meet booming demands from agriculture, industry, construction, transportation, and land, sea and air defense sectors—this momentum has greatly boosted the domestic hydraulic industry. To embrace the new wave of machinery upgrading, our company has launched a new round of optimization and improvement for our valve products. Building on our existing valve manufacturing technologies and processes, and under the guidance of domestic and international industry experts as well as Taiwanese technical engineers, we have comprehensively upgraded product structures, internal workshop purification and precision of core components. We have implemented effective control over internal stress, thermal deformation, leakage and noise of valves. Every batch of raw materials, auxiliary parts, semi-finished and finished products undergoes rigorous item-by-item inspection. We have also strengthened full-process quality supervision, with zero tolerance for defective products leaving the factory, guaranteeing reliable and long-lasting product performance. Our after-sales service includes timely technical guidance and warranty support, plus follow-up tracking of product operating conditions throughout their service life. Product competition is essentially a contest of technology, workforce dedication, team competence and corporate management. More importantly, it hinges on the founder’s philosophy, integrity and service mindset. There is no end to pursuing premium quality. Committed to specialization, refinement, quality excellence and technological innovation, our company adheres to the manufacturing principle of “Better fewer than shoddy goods” and the service tenet of “Put ourselves in customers’ shoes”. Standing at a new developmental milestone, all staff at Stars sincerely seek cooperation with clients worldwide. We aim to build mutual trust and shared prosperity, and jointly create a brighter future for the hydraulic industry.

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