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CNGE

Load holding valve from Sun Hydraulics.

Description

This valve is a pilot to open check valve with a bypass orifice. It incorporates a sealed pilot, a steel seat, and is non-vented. It allows free flow from the valve (port 2) to the load (port 1) and restricts flow in the opposite direction. Pressure at the pilot (port 3) will open the valve from port 1 to port 2. The pilot pressure needed at port 3 to open the valve is directly proportional to the load pressure at port 1. Pressure at port 2 directly opposes the pilot pressure. Note: The bypass orifice diameter is specified by the customer. See Technical Data below for the allowable orifice range. An ‘L’ control option is available to manually release the load. See Option Selection below.

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  • This 3 port pilot-to-open check valve and 3 port counterbalance valves are physically interchangeable (i.e. same cavities, same flow path for a given frame size). However, cartridge extension dimensions from the mounting surface may vary.
  • Sealed pilot for use in circuits where cross port leakage is undesirable.
  • The customer specified orifice diameter is stamped on one of the cartridge’s hex faces.
  • For models with manual load release control option, turn load release clockwise to release load.
  • 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-17A
Series 3
Capacity 60 gpm
Capacity (metric) 240 L/min.
Maximum Operating Pressure 5000 psi
Maximum Operating Pressure (metric) 350 bar
Pilot Ratio 3:1
Orifice Range .016 – .218 in.
Orifice Range (metric) 0,4 – 5,5 mm
Valve Hex Size 1 1/4 in.
Valve Hex Size (metric) 31,8 mm
Valve Installation Torque 150 – 160 lbf ft
Valve Installation Torque (metric) 203 – 217 Nm
Model Weight 1.16 lb.
Model Weight (metric) 0.53 kg.
Seal kit – Cartridge Viton: 990017006

Configuration Options

Control

X Not Adjustable
L Manual Load Release

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-17A
Nominal Capacity: 60 gpm ( 240 lpm)
Pilot Ratio: 3:1
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Possible variants

CNGELAN, CNGE-LAN, CNGELAV, CNGE-LAV, CNGELBN, CNGE-LBN, CNGELBV, CNGE-LBV, CNGELCN, CNGE-LCN, CNGELCV, CNGE-LCV, CNGELDN, CNGE-LDN, CNGELDV, CNGE-LDV, CNGELEN, CNGE-LEN, CNGELEV, CNGE-LEV, CNGELFN, CNGE-LFN, CNGELFV, CNGE-LFV, CNGELZN, CNGE-LZN, CNGELZV, CNGE-LZV, CNGEXAN, CNGE-XAN, CNGEXAV, CNGE-XAV, CNGEXBN, CNGE-XBN, CNGEXBV, CNGE-XBV, CNGEXCN, CNGE-XCN, CNGEXCV, CNGE-XCV, CNGEXDN, CNGE-XDN, CNGEXDV, CNGE-XDV, CNGEXEN, CNGE-XEN, CNGEXEV, CNGE-XEV, CNGEXFN, CNGE-XFN, CNGEXFV, CNGE-XFV, CNGEXZN, CNGE-XZN, CNGEXZV, CNGE-XZV

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