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Sequence

Model

YQHALANCN

Control
  • Standard Options
  • C
    Tamper Resistant - Factory Set
  • L
    Standard Screw Adjustment
  • Additional Options
  • K
    Handknob
  • Q
    Capped and Lockwired
Adjustment Range
  • Preferred Options
  • A
    100 - 3000 psi (7 - 210 bar), 1000 psi (70 bar) Standard Setting
  • W
    150 - 4500 psi (10,5 - 315 bar), 1000 psi (70 bar) Standard Setting
  • Standard Options
  • 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
  • D
    25 - 800 psi (1,7 - 55 bar), 400 psi (28 bar) Standard Setting
  • E
    25 - 400 psi (1,7 - 28 bar), 200 psi (14 bar) Standard Setting
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Range Letter(s) of Subordinate Cartridge
  • Standard Options
  • A
    4 psi (0,3 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • B
    15 psi (1 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • C
    30 psi (2 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • D
    50 psi (3,5 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • E
    75 psi (5 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • F
    100 psi (7 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • Z
    1 psi (0,07 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
Port and Material Designation
  • Standard Options
  • D
    Ports 1 & 2 — 3/4" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • D/S
    Ports 1 & 2 — 3/4" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Iron
  • E
    Ports 1 & 2 — 1" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • E/S
    Ports 1 & 2 — 1" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Iron
  • F
    Ports 1 & 2 — 1 1/4" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • F/S
    Ports 1 & 2 — 1 1/4" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Iron
  • L
    Ports 1 & 2 — SAE 12; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • L/S
    Ports 1 & 2 — SAE 12; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • M
    Ports 1 & 2 — SAE 16; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • M/S
    Ports 1 & 2 — SAE 16; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • N
    Ports 1 & 2 — SAE 20; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • N/S
    Ports 1 & 2 — SAE 20; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • P
    Ports 1 & 2 — 1" Code 61; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • P/M
    Ports 1 & 2 — 1" Code 61; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Metric Aluminum
  • P/S
    Ports 1 & 2 — 1" Code 61; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • P/T
    Ports 1 & 2 — 1" Code 61; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Metric Iron
  • Q
    Ports 1 & 2 — 1 1/4" Code 61 ; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • Q/M
    Ports 1 & 2 — 1 1/4" Code 61 ; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Metric Aluminum
  • Q/S
    Ports 1 & 2 — 1 1/4" Code 61 ; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • Q/T
    Ports 1 & 2 — 1 1/4" Code 61 ; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Metric Iron
  • W
    Ports 1 & 2 — 3/4" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Aluminum
  • W/S
    Ports 1 & 2 — 3/4" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Iron
  • X
    Ports 1 & 2 — 1" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Aluminum
  • X/S
    Ports 1 & 2 — 1" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Iron
  • Y
    Ports 1 & 2 — 1 1/4" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Aluminum
  • Y/S
    Ports 1 & 2 — 1 1/4" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Iron

Model: YQHA

Sequence assembly, with reverse flow check

Capacity:

Model

YQHALANCN

Control
  • Standard Options
  • C
    Tamper Resistant - Factory Set
  • L
    Standard Screw Adjustment
  • Additional Options
  • K
    Handknob
  • Q
    Capped and Lockwired
Adjustment Range
  • Preferred Options
  • A
    100 - 3000 psi (7 - 210 bar), 1000 psi (70 bar) Standard Setting
  • W
    150 - 4500 psi (10,5 - 315 bar), 1000 psi (70 bar) Standard Setting
  • Standard Options
  • 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
  • D
    25 - 800 psi (1,7 - 55 bar), 400 psi (28 bar) Standard Setting
  • E
    25 - 400 psi (1,7 - 28 bar), 200 psi (14 bar) Standard Setting
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Range Letter(s) of Subordinate Cartridge
  • Standard Options
  • A
    4 psi (0,3 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • B
    15 psi (1 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • C
    30 psi (2 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • D
    50 psi (3,5 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • E
    75 psi (5 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • F
    100 psi (7 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
  • Z
    1 psi (0,07 bar) (with SQHB primary cartridge, Kick-down, pilot-operated, balanced piston sequence valve)
Port and Material Designation
  • Standard Options
  • D
    Ports 1 & 2 — 3/4" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • D/S
    Ports 1 & 2 — 3/4" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Iron
  • E
    Ports 1 & 2 — 1" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • E/S
    Ports 1 & 2 — 1" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Iron
  • F
    Ports 1 & 2 — 1 1/4" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Aluminum
  • F/S
    Ports 1 & 2 — 1 1/4" NPTF; Port 3 — 1/4" NPTF; Gage Port — 1/4" NPTF; Iron
  • L
    Ports 1 & 2 — SAE 12; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • L/S
    Ports 1 & 2 — SAE 12; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • M
    Ports 1 & 2 — SAE 16; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • M/S
    Ports 1 & 2 — SAE 16; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • N
    Ports 1 & 2 — SAE 20; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • N/S
    Ports 1 & 2 — SAE 20; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • P
    Ports 1 & 2 — 1" Code 61; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • P/M
    Ports 1 & 2 — 1" Code 61; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Metric Aluminum
  • P/S
    Ports 1 & 2 — 1" Code 61; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • P/T
    Ports 1 & 2 — 1" Code 61; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Metric Iron
  • Q
    Ports 1 & 2 — 1 1/4" Code 61 ; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Aluminum
  • Q/M
    Ports 1 & 2 — 1 1/4" Code 61 ; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Metric Aluminum
  • Q/S
    Ports 1 & 2 — 1 1/4" Code 61 ; Port 3 — SAE 6; Gage Port — 1/4" NPTF; Iron
  • Q/T
    Ports 1 & 2 — 1 1/4" Code 61 ; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Metric Iron
  • W
    Ports 1 & 2 — 3/4" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Aluminum
  • W/S
    Ports 1 & 2 — 3/4" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Iron
  • X
    Ports 1 & 2 — 1" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Aluminum
  • X/S
    Ports 1 & 2 — 1" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Iron
  • Y
    Ports 1 & 2 — 1 1/4" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Aluminum
  • Y/S
    Ports 1 & 2 — 1 1/4" BSPP; Port 3 — 1/4" BSPP; Gage Port — 1/4" BSPP; Iron
Function
Function image

Technical specifications

  • Modifiers
    Ports
    • D, D/S
      Ports 1 & 2: 3/4" NPTF; Port 3: 1/4" NPTF; Gage Port: 1/4" NPTF;
    • E, E/S
      Ports 1 & 2: 1" NPTF; Port 3: 1/4" NPTF; Gage Port: 1/4" NPTF;
    • F, F/S
      Ports 1 & 2: 1 1/4" NPTF; Port 3: 1/4" NPTF; Gage Port: 1/4" NPTF;
    • L, L/S
      Ports 1 & 2: SAE 12; Port 3: SAE 6; Gage Port: 1/4" NPTF;
    • M, M/S
      Ports 1 & 2: SAE 16; Port 3: SAE 6; Gage Port: 1/4" NPTF;
    • N, N/S
      Ports 1 & 2: SAE 20; Port 3: SAE 6; Gage Port: 1/4" NPTF;
    • P, P/S
      Ports 1 & 2: 1" Code 61; Port 3: SAE 6; Gage Port: 1/4" NPTF;
    • P/M, P/T
      Ports 1 & 2: 1" Code 61; Port 3: 1/4" BSPP; Gage Port: 1/4" BSPP;
    • Q, Q/S
      Ports 1 & 2: 1 1/4" Code 61 ; Port 3: SAE 6; Gage Port: 1/4" NPTF;
    • Q/M, Q/T
      Ports 1 & 2: 1 1/4" Code 61 ; Port 3: 1/4" BSPP; Gage Port: 1/4" BSPP;
    • W, W/S
      Ports 1 & 2: 3/4" BSPP; Port 3: 1/4" BSPP; Gage Port: 1/4" BSPP;
    • X, X/S
      Ports 1 & 2: 1" BSPP; Port 3: 1/4" BSPP; Gage Port: 1/4" BSPP;
    • Y, Y/S
      Ports 1 & 2: 1 1/4" BSPP; Port 3: 1/4" BSPP; Gage Port: 1/4" BSPP;
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    This assembly consists of a pilot-operated, balanced piston kick-down sequence valve that 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. Additionally a reverse flow check allows free flow from port 2 to 1.

    • Should not be used in load holding applications.
    • 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.
    • Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 5000 psi (350 bar).
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    • Body Type
      Line mount
    • Capacity
      60 gpm

    Model CAD Files

    Files not yet avialable. Click below to request them.

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    • Why doesn't Sun anodize their aluminum bodies?
    • How big is a drop of hydraulic oil?  
    • Direct acting or pilot operated - what do I use?
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    • Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.
    • For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
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