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.

Series 1 - T-21A cavity, EPDM, cartridge seal kit

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Technical Features [ + ]

Sun offers replacement seal kits for all cartridge models. These kits include all of the external seals on the cartridge along with installation instructions. Seal kits are available in Buna-N and Viton for all models, along with EPDM and polyurethane for many models. 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.

EPDM seals have no limited shelf life.
EPDM seals are purple in color for easy stock and field identification.

Technical Data [ + ]

Series	1
Cartridge Thread	M20M20
Valve Hex Size	7/8 in.22,2 mm
Valve Installation Torque	30 - 35 lbf ft41 - 47 Nm
Cavity	T-21A

Cartridge Seal Installation Variations [ + ]

Cartridge Assignments	Models: DKDS, DODS, DPBP, HVCA8, Views: A,B,C,DModels: DKDS, DODS, DPBP, HVCA8, Views: A,B,C,D
Cartridge Assignments	Models: FKBA, Views: A,B,C,EModels: FKBA, Views: A,B,C,E

Used With [ + ]

What models can this kit be used with?

CVCV Vented pilot-to-open check valve
DKDS Normally closed, balanced poppet, logic element - pilot-to-open
DODS Normally open, balanced poppet, logic element - pilot-to-close
DPBP 3-way, pilot-operated, directional valve with drain to port 4 (1 to 2 open, 3 blocked)
FKBA 2-way, pilot-shifted, proportional throttle
HVCA8 Ventable, pilot-operated, balanced piston relief main stage with integral T-8A control cavity - before check
PSDT Direct-acting, pressure reducing/relieving main stage piloted from port 4
PVDA Pilot-operated, pressure reducing/relieving valve with drain to port 4
PVDB Ventable, pilot-operated, pressure reducing/relieving valve
RVCD Ventable, pilot-operated, balanced piston relief valve with drain to port 4
RVCD8 Ventable, pilot-operated, balanced piston relief main stage with integral T-8A control cavity and drain to port 4

Notes [ + ]

Install back-up rings and O-rings as shown in views.
See installation variations for models associated with alternative installation views.
When installing continuous back-up rings, use the same technique and the same care used to install O-rings.
When installing cartridge - be sure to torque to recommended value.
Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.

Additional Resources [ + ]

Technical Information

990021014 | Accessories » Cartridge Seal Kits | Sun Hydraulics

Assembly Build Process

Assembly Build Process

Series 1 - T-21A cavity, EPDM, cartridge seal kit

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