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 2 - T-3A cavity and T-5A cavity, Polyurethane cartridge seal kit

Expand All

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.

The shelf life for this cartridge seal kit is ten years from date of purchase. This date will be printed on the kit packaging.
The Series 2, two port cavity comes in two versions: the T-3A and the T-5A. The T-3A cavity is typically used in relief applications which require larger port areas, hence a deeper cavity. The T-5A cavity is typically used in flow control applications and utilizes a smaller port area. Since both cavities are Series 2, two port, they share common seal kits, but exclude the possibility of cartridge interchangeability between the two functions.
Polyurethane seals have a higher tensile strength, are more abrasion/extrusion resistant, and are well suited for high cycle and high pressure applications.

Technical Data [ + ]

Series	2
Cartridge Thread	1"-14 UNS1"-14 UNS
Valve Hex Size	1 1/8 in.28,6 mm
Valve Installation Torque	45 - 50 lbf ft61 - 68 Nm
Cavity	T-3A & T-5A

Used With [ + ]

What models can this kit be used with?

NQEB Air bleed and start-up valve
RBAA Direct-acting relief valve - pilot capacity
RGFA Low-pressure-range, direct-acting relief valve
RPGC Pilot-operated, balanced piston relief valve
RPGC8 Pilot-operated, balanced piston relief main stage with integral T-8A control cavity
RPGD Air-controlled, pilot-operated, balanced piston relief valve
RPGE Fast-acting, pilot-operated, balanced piston relief valve
RQGB Kick-down, pilot-operated, balanced piston relief valve
XCCA All ports blocked cavity plug

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.
During 1985, SUN made a running change of all external seals on Series 2 cartridges (1-1/8 in. (28,6 mm) hex, 1-14 thd). The seals were changed from 3/32 in. (2,62 mm) c/s to 1/16 in (1,7/8 mm) c/s o-rings and backup rings.
Use the kit which contains the same size (c/s) seals as those used on the cartridge being repaired. Do not change cartridge o-ring c/s sizes.

Additional Resources [ + ]

Technical Information

990003002 | Accessories » Cartridge Seal Kits | Sun Hydraulics

Assembly Build Process

Assembly Build Process

Series 2 - T-3A cavity and T-5A cavity, Polyurethane cartridge seal kit

Footer