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.

Fully adjustable needle valve - pilot capacity

Capacity: .2 gpm (.035 inch)0,8 L/min. (0,9 mm) | Cavity: T-8A

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Technical Features [ + ]

Two-port, pilot-stage needle valves are fully adjustable devices used to regulate pilot flow in a main-stage valve or to meter in/out flow in low flow applications. These cartridges are designed for pilot flow applications and utilize Sun's T-8A cavity so they can be used in conjunction with Sun's pilot-operated, main-stage valves.

Utilizes the Sun T-8A 2-port cavity making it the ideal choice to use in conjunction with Sun's main stage pilot or vent-to-operate cartridges. Separate pilot lines are eliminated and only one cavity needs to be machined to accommodate both the control and primary function. Note: All 2-position, 2-way pilot stage control cartridges utilize the same cavity and are physically interchangeable. Functionality is the only consideration.
Note: The main stage valve should first be installed to the correct torque value followed by the T-8A pilot control section into the main stage valve to its required torque value.
Ports 1 and 2 may be pressured to 5000 psi (350 bar).
Needle adjusts from fully closed to fully open in three complete turns resulting in extremely fine resolution.
Adjustment mechanism equipped with locking device to maintain consistent orifice dia/flow rate.
Leakage rate at shutoff is less than 1 drop/min.

Technical Data [ + ]

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

Cavity	T-8A
Series	P
Capacity	.2 gpm (.035 inch)0,8 L/min. (0,9 mm)
Maximum Operating Pressure	5000 psi350 bar
Adjustment - No. of CCW Turns from Fully Closed to Fully Open	33
Effective Orifice Size	.035 in.0,9 mm
Valve Hex Size	7/8 in.22,2 mm
Valve Installation Torque	20 - 25 lbf ft27 - 33 Nm
Seal kit - Cartridge	Buna: 990008007
Seal kit - Cartridge	EPDM: 990008014
Seal kit - Cartridge	Polyurethane: 990008002
Seal kit - Cartridge	Viton: 990008006

FAQs [ + ]

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.

Additional Resources [ + ]

Solutions Library

Highlights

Technical Tips

Manufacturing Sun Cartridge Cavities (522.27 KB)

Technical Information

NFAB | Cartridges » Flow Control » Needle | Sun Hydraulics

Assembly Build Process

Assembly Build Process

Fully adjustable needle valve - pilot capacity

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