This Sun Cartridge seal kit is for Suns series 2 valve, with the T-3A or T-5A cavity.

• 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.

Notes:

• Install back-up rings and O-rings as shown on the picture.
• 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 of 61 – 68 Nm.