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Sequence valve from Sun Hydraulics

Description

Kick-down sequence valves will kick completely open and remain open once the pressure at the inlet (port 1) exceeds the valve setting, creating an unrestricted flow path from port 1 to port 2 (sequence). The pressure setting at port 1 is relative to the drain (port 3). The valve remains open as long as the pressure at port 1 exceeds the pressure at port 2. To reset the valve, pressure at port 1 must fall below the setting of the valve, flow from port 1 to port 2 must cease, and pressure at port 2 must be equal to or greater than the pressure at port 1.

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  • Should not be used in load holding applications.
  • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
  • Intended for use on the actuator side of the system as flow through the valve must cease for the valve to reset. If used on the pump side of a system, pump flow must be shut off for the valve to reset.
  • All 3 port sequence cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).
  • 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.

Technical Data

Note: Data may vary by configuration. See CONFIGURATION section.

Cavity T-163A
Series 0
Capacity 7.5 gpm
Capacity (metric) 30 L/min.
Maximum Operating Pressure 5000 psi
Maximum Operating Pressure (metric) 350 bar
Factory Pressure Settings Established at Kick down point
Maximum Valve Leakage at 110 SUS (24 cSt) 2 in³/min.
Maximum Valve Leakage at 110 SUS (24 cSt) (metric) 30 cc/min.
Response Time – Typical 25 ms
Adjustment – No. of CW Turns from Min. to Max. setting 5
Valve Hex Size 3/4 in.
Valve Hex Size (metric) 19,1 mm
Valve Installation Torque 20 – 25 lbf ft
Valve Installation Torque (metric) 27 – 33 Nm
Adjustment Screw Internal Hex Size 5/32 in.
Adjustment Screw Internal Hex Size (metric) 4 mm
Locknut Hex Size 9/16 in.
Locknut Hex Size (metric) 15 mm
Locknut Torque 80 – 90 lbf in.
Locknut Torque (metric) 9 – 10 Nm
Model Weight 0.25 lb.
Model Weight (metric) 0.11 kg.
Seal kit – Cartridge Viton: 990163006

Configuration Options

Control

C Tamper Resistant – Factory Set
K Handknob
L Standard Screw Adjustment

Adjustment Range

A 75 – 3000 psi (5 – 210 bar), 1000 psi (70 bar) Standard Setting
B 75 – 1500 psi (5 – 105 bar), 1000 psi (70 bar) Standard Setting
C 75 – 6000 psi (5 – 420 bar), 1000 psi (70 bar) Standard Setting
N 75 – 800 psi (5 – 55 bar), 400 psi (28 bar) Standard Setting
Q 75 – 400 psi (5 – 28 bar), 200 psi (14 bar) Standard Setting
W 75 – 4500 psi (5 – 315 bar), 1000 psi (70 bar) Standard Setting

Seal Material

N Buna-N
V Viton
Cavity: T-163A
Nominal Capacity: 30 lpm (7.5 gpm)
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Possible variants

SQBBCAN, SQBB-CAN, SQBBCAV, SQBB-CAV, SQBBCBN, SQBB-CBN, SQBBCBV, SQBB-CBV, SQBBCCN, SQBB-CCN, SQBBCCV, SQBB-CCV, SQBBCNN, SQBB-CNN, SQBBCNV, SQBB-CNV, SQBBCQN, SQBB-CQN, SQBBCQV, SQBB-CQV, SQBBCWN, SQBB-CWN, SQBBCWV, SQBB-CWV, SQBBKAN, SQBB-KAN, SQBBKAV, SQBB-KAV, SQBBKBN, SQBB-KBN, SQBBKBV, SQBB-KBV, SQBBKCN, SQBB-KCN, SQBBKCV, SQBB-KCV, SQBBKNN, SQBB-KNN, SQBBKNV, SQBB-KNV, SQBBKQN, SQBB-KQN, SQBBKQV, SQBB-KQV, SQBBKWN, SQBB-KWN, SQBBKWV, SQBB-KWV, SQBBLAN, SQBB-LAN, SQBBLAV, SQBB-LAV, SQBBLBN, SQBB-LBN, SQBBLBV, SQBB-LBV, SQBBLCN, SQBB-LCN, SQBBLCV, SQBB-LCV, SQBBLNN, SQBB-LNN, SQBBLNV, SQBB-LNV, SQBBLQN, SQBB-LQN, SQBBLQV, SQBB-LQV, SQBBLWN, SQBB-LWN, SQBBLWV, SQBB-LWV