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CKBM

Load holding valve from Sun Hydraulics.

Description

This valve is a pilot to open check valve. It has 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 blocks flow in the opposite direction. Pressure at the pilot will open the valve from port 1 to port 2. Pilot pressure needed at the pilot to open the valve is directly proportional to the load pressure at port 1. Pressure at port 2 directly opposes pilot pressure.

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  • This valve is what we call an Insert style. It is meant to be buried in a manifold or actuator. The cavity drawing for the T-162DP cavity contains a lot of detailed information and should be studied closely when applying this valve.
  • Provides hose break protection, prevents loads from drifting and positively locks pressurized loads.
  • Extremely low leakage. The seat and poppet are heat treated for long life. If the load drifts due to the valve, the seat has probably been damaged by contamination and the valve should be replaced.
  • Sealed pilot for use in circuits where cross port leakage is undesirable.
  • Note: Available only with 30 psi or 75 psi (2 bar or 5 bar) check valve cracking pressures.
  • Pilot-to-open check cartridges are locking valves, not motion control valves. For motion control applications, use counterbalance valves.
  • 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-162DP
Series 0
Capacity 7.5 gpm
Capacity (metric) 30 L/min.
Maximum Operating Pressure 5000 psi
Maximum Operating Pressure (metric) 350 bar
Pilot Ratio 3:1
Maximum Valve Leakage at 110 SUS (24 cSt) 1 drops/min.
Maximum Valve Leakage at 110 SUS (24 cSt) (metric) 0,07 cc/min.
Valve Internal Hex Size 5/16 in.
Valve Internal Hex Size (metric) 8 mm
Valve Installation Torque 20 – 25 lbf ft
Valve Installation Torque (metric) 27 – 33 Nm
Model Weight 0.14 lb.
Model Weight (metric) 0.07 kg.
Seal kit – Cartridge Viton: 990162006

Configuration Options

Control

X Not Adustable, Standard Hydraulic Pilot

Cracking Pressure

C 30 psi (2 bar)

Seal Material

N Buna-N
V Viton
Cavity: T-162DP
Nominal Capacity: 30 lpm (7.5 gpm)
Pilot Ratio: 3:1
Downloads
PDFSTP
Possible variants

CKBMXCN, CKBM-XCN, CKBMXCV, CKBM-XCV

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