 2024 Sun Hydraulics 1 of 2

MODEL

CDAA

Back-to-back check/shuttle valve with signal external

SERIES 1 / CAPACITY: 10 L/min. / CAVITY: T-13A

(B)CONTROL

B External 1/4 BSPP Port

E External 4-SAE Port

(B)CRACKING PRESSURE

B 15 psi (1 bar)

(N)SEAL MATERIAL

N Buna-N

V Viton

MATERIAL/COATING

Standard Material/Coating

/AP Stainless Steel, Passivated

NOTE: DATA MAY VARY BY CONFIGURATION. SEE CONFIGURATION SECTION.

The back-to-back check valve combines two simple check valves into a single cartridge. It connects the higher of

two work ports to the signal or common port. The signal is sensed at an external port located in the hex-end of the

cartridge.

TECHNICAL DATA

Cavity T-13A

Series 1

Capacity 10 L/min.

Maximum Operating Pressure 350 bar

Maximum Valve Leakage at 110 SUS (24 cSt) 0,3 cc/min.

Valve Hex Size 22,2 mm

Valve Installation Torque 41 - 47 Nm

Seal kit - Cartridge Buna: 990010007

Seal kit - Cartridge Polyurethane: 990010002

Seal kit - Cartridge Viton: 990010006

Model Weight 0.09 kg.

sunhydraulics.com/model/

CDAA

TECHNICAL FEATURES

Back-to-back check cartridges feature hardened, spherically lapped, guided poppets and a lightly stressed helical spring that result in excellent wear characteristics

and extremely low leakage rates.

The back-to-back checks do not provide a means of lowering a signal. They will trap a high signal if the load pressures drop to a lower pressure. Some means of

bleeding off the signal should be provided.

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.

Model Code Example: CDAABBNCONFIGURATION OPTIONS