iso 9001:2008 with design - brand-hyd.comd... · 402.344.4434 • d-23 ls – general information:...

402.344.4434 • www.brand-hyd.com

ISO 9001:2008 WITH DESIGNCertificate #02.002.1

Specifications:

• Rated for 0-18 gpm (0-68.1 lpm)

• Rated for 3000 psi (207 bar)

• Weighs 5-1/2 lbs. (2.5 kg)

• 30 – Micron filtration recommended

LS4-Way Directional Control Valve

With Hydraulic Kick Out

Engineering & Manufacturing Solutions

PLS755T4JRSH

LS755T4JRSH

P

B

T

A

LS REV(D)

D-22

Sche

mat

ics

& Fe

atur

es LS 4-Way Directional Control Valve With Hydraulic Kick Out

LS755T4JRSH

FEATURES:• SINGLE ADJUSTABLE HYDRAULIC KICK OUT.• OPTIONAL DOUBLE HYDRAULIC KICK OUT is not recommended for log splitters.• SMALL AND COMPACT to fit your design requirements.• FINE POSITIVE METERING in either direction with the manually adjustable handle.• PRECISION GROUND IOSSO PLATED SPOOL that assures long life.

MATERIALS:• Cast Iron Body• Buna N O’Rings• IOSSO Plated Steel Spool• Black Nylon Ball KnobPLS755T4JRSH


D-23

LS – GENERAL INFORMATION:The Brand, LS 4-way directional control valve is designed primarily for log splitters. The manual adjustable handle provides fine metering to either port. Port flow is directly proportional to the movement of the lever. The tank port must be plumbed directly back to tank.

SPOOL TYPE – The spool types offered are tandem center 4-way (T4), open center 4-way (O4), closed center 4-way (C4). (See chart and schematics for information on spool types).

HANDLE OPTIONS – • Lever handle (J) pressurizes A port when the handle is pushed towards the valve body (clevis below spool). • Lever handle (L) pressurizes A port when the handle is pulled away from valve body (clevis above spool). • No actuator (M) J type spool.

SPOOL ACTION – • Spring center hydraulic detent (SH) springs back to neutral from one position and pressure release detent in the other direction when the cylinder completes its return stroke (P to A in detent and 800- 1000 psi (55 to 69 bar) kick-out setting). • Single hydraulic kick-out (SH) preset at 800 PSI. Adjustable from 800 to 2200 PSI. • Hydraulic detent in both directions (HHA) pressure release detent in both directions and springs to center when out of detent (Not recommended for log splitters). • Adjustable relief (R) set to 2000 psi (138 bar) at factory.

General Inform

ation

LS REV(D)

D-24

Spoo

l Sch

emat

ics LS 4-Way Directional Control Valve With Hydraulic Kick Out

SPOOL SCHEMATICS:

Tandem Center 4-Way (T4) - Powers cylinder or motor in both directions. Pump unloads to tank when spool is in neutral. Cylinder or motor blocked when spool in neutral.

Open Center 4-Way (O4) - All of the ports are connected to tank when the spool is in neutral. Allows cylinder to move or motor to rotate when spool is in neutral.

Closed Center 4-Way (C4) - All ports are blocked in neutral. Blocks cylinder or motor in neutral. Required for use with pressure compensated pump.

TP

A B

Tandem Center (T) - Powers cylinder or motor in both directions (metering capability is very limited). Pump unloads to tank when spool is in neutral. Cylinder or motor blocked when spool in neutral.

Open Center (O) - All of the ports are connected to tank when the spool is in neutral. Allows cylinder to move or motor to rotate when spool is in neutral.

Fine Metering Spool (M) - The pressure drop in neutral is higher then the (OM) and (TM) spools. Requires external locking valves to hold cylinder, because ports A and B are open (orificed) in the neutral position. Extremely fine metering control.

Open Metering Spool (OM) - The neutral pressure drop is much lower then the (M) spool. Extremely fine metering control. Ports A and B are open (orificed) in the neutral position.

BA

P T

BA

P T

BA

P T

Tandem Metering Spool (TM) - Similiar to (T) spool except much finer metering control. The pressure drop in neutral is lower then the (M) spool. Cylinder or motor blocked in neutral and pump unloads to tank.

P T

A B

TP

A B





BA

P T

BA

P T

BA

P T


P T

A B

TP

A B

Tandem Center (T) - Powers cylinder or motor in both directions. Pump unloads to tank when spool is in neutral. Cylinder or motor blocked when spool in neutral.


Fine Metering Spool (M) - Requires external locking valves to hold cylinder when spool is in neutral position. Extremely fine metering control. This spool requires a pressure compensated pump.

BA

P T

BA

P T

Tandem Metering Spool (TM) - Similar to (T) spool except much finer metering control. Cylinder or motor blocked in neutral and pump unloads to tank.

P T

A B

Closed Center (C)- All ports are blocked in neutral. Blocks cylinder or motor in neutral. Required for use with pressure compensated pump.

P T

A B

Tandem Three Way (T3) - Powers the cylinder in one direction. Pump unloads to tank when spool is in neutral, or when spool is being reversed. Cylinder is blocked when spool is in neutral. Port "B" is plugged.

P T

A B


D-25

LS – COMPLETE LIST OF OPTIONS AND ACCESSORIES:LSJRHH-K…………..… Seal kit for LS with HHA spool action.LSJRS-K………...……... Seal kit for LS with SH spool action.LS-RK………..…….…... Kick-out assembly with spool for SH spool action.

LS – EXAMPLES OF COMMON MODEL CODES:LS755C4JRSH………....3/4” NPT inlet/outlet, 1/2” NPT work ports, closed center 4-way spool, J-style actuator, adjustable relief set at 2000 psi (138 bar), and spring center one direction hydraulic detent in other direction with non-adjustable kick-out.LS755T4JRHHA……....3/4” NPT inlet/outlet, 1/2” NPT work ports, tandem center 4-way spool, J-style actuator, adjustable relief set at 2000 psi (138 bar), and hydraulic detent in both directions.

LS – CREATING A MODEL CODE FOR LS’S: LS

SPOOL TYPE:T4 – Tandem Center 4-wayO4 – Open Center 4-wayC4 – Closed Center 4-wayHANDLE OPTION:J – J-style lever handle (clevis below spool)L – J-style lever handle (clevis above spool)M – No actuator (J type spool)

Model C

odes / Options & Accessories

SPOOL ACTION:SH – Spring center / hydraulic detent (Adjustable)HHA – Hydraulic detent in both directions

RELIEF:Omit – 3No reliefR - Adjustable relief (2000 psi (138 bar) factory setting)

Open Center 4-Way (O4) - All of the ports are connected to tank when the spool is in neutral. Allows cylinder to move or motor to rotate when spool is in neutral.

TP

A B





BA

P T

BA

P T

BA

P T


P T

A B

PORT SIZE:755 – 3/4” inlet/outlet and 1/2” work ports120 - #12SAE inlet/outlet and #10SAE work ports

PAINT:Blank – No paintP – Painted black (other colors available, consult factory)MP – Epoxy coating

LS REV(D)

D-26

Flow

And

Pre

ssur

e In

form

atio

n

Pressure Drop VS. Flow

LS – FLOW AND PRESSURE INFO:

Pressure VS. Flow for LS Relief (R)

LS 4-Way Directional Control Valve With Hydraulic Kick Out


D-27

Dim

ensional Data

DIMENSIONAL DATA (LS755T4JRSH SHOWN): inches & [millimeters]

3X Ø0.27" [Ø6.7]

11.0" [278]

A PORTB PORT

1.00

" [25

.4]

2.42

" [61

.5]

8.79" [223.2]

8.8"

[224

]

0.94" [23.8]

2.13

" [54

.0]

3.81

" [96

.9]

2.19" [55.6]3.94" [100.0]

ADJUSTABLE RELIEF (1500 PSI (103 BAR) FACTORY SETTING)

7.29

" [18

5.2]

0.71

" [18

.1]

0.25" [6.4]0.25" [6.4]8.55" [217.1]

1.00

" [25

.4]

2.44

" [62

.0]

1.06

" [26

.9]

2.12

" [54

.0]

3.94" [100.0]

1.20" [30.6]2.24" [56.8]

5.44" [138.2]

9.42" [239.2]


2.19" [55.5]

B PORTA PORT

3X Ø0.27" [Ø6.7]

7.29

" [18

5.2]

0.71

" [18

.1]

0.25" [6.4]0.25" [6.4]8.55" [217.1]

1.00

" [25

.4]

2.44

" [62

.0]

1.06

" [26

.9]

2.12

" [54

.0]

3.94" [100.0]

1.20" [30.6]2.24" [56.8]

5.44" [138.2]

9.42" [239.2]


2.19" [55.5]

B PORTA PORT

3X Ø0.27" [Ø6.7]

iso 9001:2008 with design - brand-hyd.comd... · 402.344.4434 • d-23 ls – general information:...

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