Assembly Build Process

Sun's Assembly Build Process allows you to configure a cartridge and manifold, or main stage and pilot stage cartridge, and build a digital assembly in three dimensional space. The resulting output of this process is the assembly product page, including configuration-specific images, symbols, product information and CAD files for download.

The Assembly Build Process can be accessed from either a cartridge or manifold product page. Only valid choices are allowed.

From a manifold page, you must first choose your cartridge function. Once you choose your function, click on the BUILD ASSEMBLY button below the WHERE TO BUY BUTTON. Once clicked, you will be presented with valid cartridges for your manifold. Select the cartridge of your choice and follow the instructions at the top of the page. If your particular combination has been generated before, the resulting assembly page will be available immediately. If not, you will be asked to enter your email address. Once the page is complete, an email will be sent to you including a link to the assembly product page.

From a cartridge product page, click on BUILD ASSEMBLY and you will be presented with a listing of compatible manifolds. In the case of main stage and pilot stage cartridges, you can either build a cartridge to cartridge assembly or a cartridge to manifold assembly. Once your choice has been made, follow the instructions at the top of the page. If your particular combination has been generated before, the resulting assembly page will be available immediately. If not, you will be asked to enter your email address. Once the page is complete, an email will be sent to you including a link to the assembly product page.

Please note that the Assembly Build Process is an automated process. It can be utilized at any time. Pages are generated typically within minutes but delays can occasionally be expected. In the event of a delay, a team at Sun will work to resolve the issue to ensure you receive your information as quickly as possible.

3-way, soft shift, solenoid-operated directional spool valve - pilot capacity (740 Series)

Capacity: .25 gpm1 L/min. | Cavity: T-9A

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Technical Features [ + ]

This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool pilot valve used to pilot other full-flow valves. The valve is normally open between port 1 and port 2 or port 1 and port 3 and all flow paths are bidirectional.

This valve is designed to be used with 740 and 747 Series coils.

The soft shift cartridge is interchangeable with the standard cartridge, however, the performance limits are lower.
The soft shift feature can reduce shock due to valve actuation but should not be counted upon in applications where timing is critical. If you need accurate ramping or timing control, consider Sun's electro-proportional valves.
The soft shift feature results in an increase in response time over Sun's standard solenoid. Response time is dependent on flow, pressure, coil voltage, oil viscosity and ambient temperature.
For consistent soft shift performance, port 1 should be at a positive pressure.
The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.
This valve is direct actuated and requires no minimum hydraulic pressure for operation.
Valves exhibit extremely low leakage rates; less than 10 drops/min. @ 5000 psi (0,7 cc/min @ 350 bar).
All configurations of this valve include zinc-nickel plating as standard for 1000-hour salt fog protection.
Coil connector options offer ratings up to IP69K. See individual coil product pages for details.
This cartridge utilizes 740 Series low-power and high-power coils, and 747 Series hazardous location coils for both Normally Open and Normally Closed configurations.
A FULL DATA SHEET is available for this model using the link at the top of the page.
This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes that will affect the function of the cartridge.
A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.
Coils can be mounted on the tube in either direction.
Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

Technical Data [ + ]

Note: Data may vary by configuration. See CONFIGURATION section.

Cavity	T-9A
Series	P
Capacity	.25 gpm1 L/min.
Maximum Operating Pressure	5000 psi350 bar
Maximum Valve Leakage at 110 SUS (24 cSt)	10 drops/min.@5000 psi0,7 cc/min.@350 bar
Manual Override Force Requirement	10 lbs/1000 psi @ Port 166 N/100 bar @ Port 1
Manual Override Stroke	.10 in.2,5 mm
Solenoid Tube Diameter	.63 in.16 mm
Valve Hex Size	7/8 in.22,2 mm
Valve Installation Torque	20 - 25 lbf ft27 - 33 Nm
Seal kit - Cartridge	Buna: 990009007
Seal kit - Cartridge	Polyurethane: 990009002
Seal kit - Cartridge	Viton: 990009006

Performance Curves [ + ]

Performance Curve for DBAFS: 3-way, soft shift, solenoid-operated directional spool valve - pilot capacity (740 Series)

FAQs [ + ]

Direct acting or pilot operated - what do I use?

Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

How big is a drop of hydraulic oil?

There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

What parts of the Sun cartridge valve are field serviceable?

Only external seals are serviceable. Sun offers replacement seal kits for all cartridge models. The applicable kit part number can be found in the product page's Technical Data table or by using our Cartridge Seal Kit search function located under Accessories. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.

Related Models [ + ]

DBAF3-way solenoid-operated directional spool valve - pilot capacity (740 Series)

Notes [ + ]

Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.

Additional Resources [ + ]

Highlights

Technical Tips

Solenoid Operated Directional Valves (1.01 MB)
Manufacturing Sun Cartridge Cavities (522.27 KB)
Solenoid Coils for Switching and Proportional Valves (975.2 KB)

Technical Information

Coil Information [ + ]

No coil selected.

DBAFSHN

M-Control, H-Spool

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Configuration Rules

POPPET CONFIGURATION

SEAL MATERIAL

COIL

DBAFS | Cartridges » Solenoid Operated » 3-way | Sun Hydraulics

Assembly Build Process

Assembly Build Process

3-way, soft shift, solenoid-operated directional spool valve - pilot capacity (740 Series)

Symbols for DBAFS

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