 2023 Sun Hydraulics 1 of 3

MODEL

DNCA

4-way, 2-position, solenoid-operated directional spool valve with closed

transition

SERIES 1 / CAPACITY: 30 L/min. / CAVITY: T-31A

(X)CONTROL

X No Manual Override

D Twist/Lock (Dual) Manual Override

L Twist/Lock (Detent) Manual Override

M Manual Override

T Twist (Momentary) Manual Override

(X)SPOOL CONFIGURATION

X Cross, Shift to Through

C Closed, Shift to Through

A A to T, Shift to Through

B B to T, Shift to Through

J Open, Shift to Through

L Cross, Shift to P to A, B and T Blocked

S Regen, Shift to Through

T Tandem, Shift to Through

W A and B Bleed to T, Shift to Through

Z Motor, Shift to Through

(N)SEAL MATERIAL

N Buna-N

E EPDM

V Viton

COIL *

No coil

212 DIN 43650-Form A, 12 VDC

224 DIN 43650-Form A, 24 VDC

912 Deutsch DT04-2P, 12 VDC

924 Deutsch DT04-2P, 24 VDC

* Additional coil options are available

X-Control, X-Spool X-Control, A-Spool

X-Control, B-Spool X-Control, C-Spool

X-Control, J-Spool X-Control, L-Spool

X-Control, S-Spool X-Control, T-Spool

X-Control, W-Spool X-Control, Z-Spool

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

This solenoid-operated, 4-way, 2-position cartridge is a direct-acting, balanced spool directional valve. The

transition between positions is closed. The closed transition greatly reduces the loss of oil when shifting which can

be of particular importance in pilot control circuits.

TECHNICAL DATA

Cavity T-31A

Series 1

Capacity 30 L/min.

Maximum Operating Pressure 350 bar

Maximum Valve Leakage at 110 SUS (24 cSt) 160 cc/min.@210 bar

Manual Override Force Requirement 33 N/100 bar @ Port 1

Manual Override Stroke 2,5 mm

Response Time - Typical 50 ms

Switching Frequency 15,000 max. cycles/hr

Solenoid Tube Diameter 19 mm

Valve Hex Size 22,2 mm

Valve Installation Torque 41 - 47 Nm

Seal kit - Cartridge Buna: 990431007

Seal kit - Cartridge EPDM: 990431014

Seal kit - Cartridge Viton: 990431006

Seal and nut kit - Coil Viton: 990770006

Model Weight 0.28 kg.

sunhydraulics.com/model/

DNCA

Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.

NOTES

Model Code Example: DNCAXXNCONFIGURATION OPTIONS

 2023 Sun Hydraulics 2 of 3

TECHNICAL FEATURES

Valve capacity is based on port 3 as the inlet and port 1 as the tank. Although reverse flow is possible, the same performance cannot be guaranteed and is not

recommended.

The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service.

This valve is direct actuated and requires no minimum hydraulic pressure for operation.

Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage

the seals.

This valve utilizes a wet armature design. This means that the working fluid surrounds the armature and is exposed to the heat generated by the coil. This can be a

factor if the coil is energized for long periods of time. Some fluids, notably water/glycol mixtures, break down at these temperatures over time and form varnishes

that will affect the function of the cartridge.

A wide variety of coil termination and voltage options are available, with and without surge protection. See the CONFIGURATION section.

The solenoid's unique magnetic design results in a high efficiency solenoid, yielding high spool actuating force per Watt expended, leading to reliable valve shifting.

Coils are interchangeable with other Sun Series 1 solenoid products and can be mounted on the tube in either direction.

Coil connector options offer ratings up to IP69K. See individual coil product pages for details. Additional weatherized coils and kits are available for more complete

environmental protection.

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.

PERFORMANCE CURVES

 2023 Sun Hydraulics 3 of 3

RELATED MODELS

DNCAZ 4-way, 2-position, solenoid-operated directional spool valve with closed transition and position switch