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Priority flow control valve from Sun Hydraulics

Description

This valve is a fixed-orifice, non-pressure-compensated flow control with a reverse flow check. The flow setting is specified by the user and is set at the factory.

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  • Customer must specify the orifice diameter.
  • All 2-port flow control cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size). However, cartridge extension dimensions from the mounting surface may vary.
  • These are essentially check valves with bypass orifices. The flow path matches Sun’s flow controls and can be used in any flow control manifolds. Valves with the opposite direction of flow can be found under check valves with bypass orifices.
  • Because these valves are non-compensating devices, the fixed orifice size will regulate flow through the valve in proportion to the square root of the pressure differential across ports 1 and 2.
  • The customer specified orifice diameter is stamped on one of the cartridge’s hex faces.
  • 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-18A
Series 4
Capacity 120 gpm
Capacity (metric) 480 L/min.
Maximum Operating Pressure 5000 psi
Maximum Operating Pressure (metric) 350 bar
Orifice Range .016 – .218 in.
Orifice Range (metric) 0,4 – 5,5 mm
Valve Hex Size 1 5/8 in.
Valve Hex Size (metric) 41,3 mm
Valve Installation Torque 350 – 375 lbf ft
Valve Installation Torque (metric) 474 – 508 Nm
Seal kit – Cartridge Viton: 990018006
Model Weight 2.01 lb.
Model Weight (metric) 0.91 kg.

Configuration Options

Control

X Not Adjustable

Setting Range

A 4 psi (0,3 bar) Cracking Pressure, .016 – .218 in. (0,4 – 5,5 mm)
B 15 psi (1 bar) Cracking Pressure, .016 – .218 in. (0,4 – 5,5 mm)
C 30 psi (2 bar) Cracking Pressure, .016 – .218 in. (0,4 – 5,5 mm)
D 50 psi (3,5 bar) Cracking Pressure, .016 – .218 in. (0,4 – 5,5 mm)
E 75 psi (5 bar) Cracking Pressure, .016 – .218 in. (0,4 – 5,5 mm)
F 100 psi (7 bar) Cracking Pressure, .016 – .218 in. (0,4 – 5,5 mm)
Z 1 psi (0,07 bar) Cracking Pressure, .016 – .218 in. (0,4 – 5,5 mm)

Seal Material

N Buna-N
V Viton
Cavity: T-18A
Nominal Capacity: 120 gpm (480 lpm )
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Possible variants

CNICXAN, CNIC-XAN, CNICXAV, CNIC-XAV, CNICXBN, CNIC-XBN, CNICXBV, CNIC-XBV, CNICXCN, CNIC-XCN, CNICXCV, CNIC-XCV, CNICXDN, CNIC-XDN, CNICXDV, CNIC-XDV, CNICXEN, CNIC-XEN, CNICXEV, CNIC-XEV, CNICXFN, CNIC-XFN, CNICXFV, CNIC-XFV, CNICXZN, CNIC-XZN, CNICXZV, CNIC-XZV

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