PRESSURE CONTROLS
KS10-30 Kick-Down, Sequence, Internal Pilot
DESCRIPTION
A screw-in, cartridge-style, direct-acting, spool-type, hydraulic sequence valve with
internal pilot and spring chamber drain, designed to direct fl ow to a secondary circuit
once a pre-determined pressure level is attained in the primary circuit. The valve will
remain shifted until the pressure in the secondary circuit falls below a lower pressure
setting determined by a second spring.
OPERATION
In its steady state, the KS10-30 blocks fl ow at ➀, while allowing fl ow to pass from
➁ to ➂.
On attainment of a pre-determined pressure at
➀, the cartridge shifts to open ➀ to ➁.
The
➀ to ➁ fl ow path will remain open until the pressure in the secondary circuit falls
below a lower pressure setting determined by a second spring.
Note: Primary spring setting should be greater than secondary spring value.
FEATURES
• Adjustments cannot be backed out of the valve.
• Adjustments prohibit springs from going solid.
• Optional spring ranges to 207 bar (3000 psi).
• Hardened spool and cage for long life.
• Industry common cavity.
RATINGS
Operating Pressure: 207 bar (3000 psi)
Flow: See Performance Chart
Internal Leakage
➀ to ➁: 82 cc/minute (5 cu. in./minute) max.
to 85% of nominal setting
Crack Pressure Defi ned: bar (psi) evident at
➀ when 0.95 lpm (0.25 gpm)
attained
➀ to ➁
Standard Spring Ranges (Primary Spring):
10 to 103 bar (150 to 1500 psi); 27.6 to 207 bar (400 to 3000 psi)
Standard Spring Setting (Optional Secondary Spring):
7 bar (100 psi); 10 bar (150 psi); 14 bar (200 psi); 17 bar (250 psi)
Temperature: -40 to 120°C with standard Buna seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC10-3; See page 9.110.1
Cavity Tool: CT10-3XX; See page 8.600.1
Seal Kit: SK10-3X-BB; See page 8.650.1
USASI/ISO:
PERFORMANCE (Cartridge Only)
SYMBOLS
6.802.1
8.3/120
6.9/100
5.5/80
4.1/60
2.8/40
3.8
1
7.5
2
FLOW RATE lpm/gpm
PRESSURE DROP bar/psi
11.4
3
1.4/20
Fully Open ➀ to ➁
32 cSt/150 ssu oil at 40°C
HYDRAFORCE
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