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RSDS

Sequence valve from Sun Hydraulics

Description

Pilot-operated, balanced poppet sequence valves will supply a secondary circuit with flow once the pressure at the inlet (port 1) has exceeded the valve setting. The pressure setting of a sequence valve controls the pressure at port 1 relative to the pressure at the drain (port 3). These valves are insensitive to back pressure at port 2 (sequence), up to the valve setting. They may be used to regulate pressure in place of 2-port relief valves if there is pressure in the return line.

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  • Pilot flow continues to increase as the pressure at port 1 (inlet), relative to the pressure at port 3 (drain), rises above the valve setting.
  • The main stage orifice is protected by a 150 micron stainless steel screen.
  • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
  • Suitable for use in load holding applications.
  • Because the modulating occurs inside the cartridge these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
  • Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
  • 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-11A
Series 1
Capacity 15 gpm
Capacity (metric) 60 L/min.
Maximum Operating Pressure 5000 psi
Maximum Operating Pressure (metric) 350 bar
Factory Pressure Settings Established at 4 gpm
Factory Pressure Settings Established at (metric) 15 L/min.
Maximum Valve Leakage at Reseat 10 drops/min.
Maximum Valve Leakage at Reseat (metric) 0,7 cc/min.
Response Time – Typical 10 ms
Adjustment – No. of CW Turns from Min. to Max. setting 5
Valve Hex Size 7/8 in.
Valve Hex Size (metric) 22,2 mm
Valve Installation Torque 30 – 35 lbf ft
Valve Installation Torque (metric) 41 – 47 Nm
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 0.35 lb.
Model Weight (metric) 0.16 kg.
Seal kit – Cartridge Viton: 990011006

Configuration Options

Control

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

Adjustment Range

A 100 – 3000 psi (7 – 210 bar), 1000 psi (70 bar) Standard Setting
B 50 – 1500 psi (3,5 – 105 bar), 1000 psi (70 bar) Standard Setting
C 150 – 6000 psi (10,5 – 420 bar), 1000 psi (70 bar) Standard Setting
N 60 – 800 psi (4 – 55 bar), 400 psi (28 bar) Standard Setting
Q 60 – 400 psi (4 – 28 bar), 200 psi (14 bar) Standard Setting
W 100 – 4500 psi (7 – 315 bar), 1000 psi (70 bar) Standard Setting

Seal Material

N Buna-N
V Viton

Material/Coating

/AP Stainless Steel, Passivated
/LH Mild Steel, Zinc-Nickel
Cavity: T-11A
Nominal Capacity: 15 gpm (60 lpm )
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Possible variants

RSDS8DN, RSDS-8DN, RSDS8DV, RSDS-8DV, RSDS8WN, RSDS-8WN, RSDS8WV, RSDS-8WV, RSDSCAN, RSDS-CAN, RSDSCAN/AP, RSDS-CAN/AP, RSDSCAN/LH, RSDS-CAN/LH, RSDSCAV, RSDS-CAV, RSDSCAV/AP, RSDS-CAV/AP, RSDSCAV/LH, RSDS-CAV/LH, RSDSCBN, RSDS-CBN, RSDSCBN/AP, RSDS-CBN/AP, RSDSCBN/LH, RSDS-CBN/LH, RSDSCBV, RSDS-CBV, RSDSCBV/AP, RSDS-CBV/AP, RSDSCBV/LH, RSDS-CBV/LH, RSDSCCN, RSDS-CCN, RSDSCCN/AP, RSDS-CCN/AP, RSDSCCN/LH, RSDS-CCN/LH, RSDSCCV, RSDS-CCV, RSDSCCV/AP, RSDS-CCV/AP, RSDSCCV/LH, RSDS-CCV/LH, RSDSCNN, RSDS-CNN, RSDSCNN/AP, RSDS-CNN/AP, RSDSCNN/LH, RSDS-CNN/LH, RSDSCNV, RSDS-CNV, RSDSCNV/AP, RSDS-CNV/AP, RSDSCNV/LH, RSDS-CNV/LH, RSDSCQN, RSDS-CQN, RSDSCQN/AP, RSDS-CQN/AP, RSDSCQN/LH, RSDS-CQN/LH, RSDSCQV, RSDS-CQV, RSDSCQV/AP, RSDS-CQV/AP, RSDSCQV/LH, RSDS-CQV/LH, RSDSCWN, RSDS-CWN, RSDSCWN/AP, RSDS-CWN/AP, RSDSCWN/LH, RSDS-CWN/LH, RSDSCWV, RSDS-CWV, RSDSCWV/AP, RSDS-CWV/AP, RSDSCWV/LH, RSDS-CWV/LH, RSDSKAN, RSDS-KAN, RSDSKAV, RSDS-KAV, RSDSKBN, RSDS-KBN, RSDSKBV, RSDS-KBV, RSDSKCN, RSDS-KCN, RSDSKCV, RSDS-KCV, RSDSKNN, RSDS-KNN, RSDSKNV, RSDS-KNV, RSDSKQN, RSDS-KQN, RSDSKQV, RSDS-KQV, RSDSKWN, RSDS-KWN, RSDSKWV, RSDS-KWV, RSDSLAN, RSDS-LAN, RSDSLAN/AP, RSDS-LAN/AP, RSDSLAN/LH, RSDS-LAN/LH, RSDSLAV, RSDS-LAV, RSDSLAV/AP, RSDS-LAV/AP, RSDSLAV/LH, RSDS-LAV/LH, RSDSLBN, RSDS-LBN, RSDSLBN/AP, RSDS-LBN/AP, RSDSLBN/LH, RSDS-LBN/LH, RSDSLBV, RSDS-LBV, RSDSLBV/AP, RSDS-LBV/AP, RSDSLBV/LH, RSDS-LBV/LH, RSDSLCN, RSDS-LCN, RSDSLCN/AP, RSDS-LCN/AP, RSDSLCN/LH, RSDS-LCN/LH, RSDSLCV, RSDS-LCV, RSDSLCV/AP, RSDS-LCV/AP, RSDSLCV/LH, RSDS-LCV/LH, RSDSLNN, RSDS-LNN, RSDSLNN/AP, RSDS-LNN/AP, RSDSLNN/LH, RSDS-LNN/LH, RSDSLNV, RSDS-LNV, RSDSLNV/AP, RSDS-LNV/AP, RSDSLNV/LH, RSDS-LNV/LH, RSDSLQN, RSDS-LQN, RSDSLQN/AP, RSDS-LQN/AP, RSDSLQN/LH, RSDS-LQN/LH, RSDSLQV, RSDS-LQV, RSDSLQV/AP, RSDS-LQV/AP, RSDSLQV/LH, RSDS-LQV/LH, RSDSLWN, RSDS-LWN, RSDSLWN/AP, RSDS-LWN/AP, RSDSLWN/LH, RSDS-LWN/LH, RSDSLWV, RSDS-LWV, RSDSLWV/AP, RSDS-LWV/AP, RSDSLWV/LH, RSDS-LWV/LH