PARKER 螺纹插装阀 ------- 逻辑元件经典应用组合

LOGIC CIRCUITS
Logic (from the Greek λογική logikē)


Normally Open Controlled w/ 2-Way, 2 Position
DSL102N
16SLC1-B-**
B
DIRECTION OF FLOW
A


Normally Open Controlled w/ 2-Way, 2 Position
DSL102N
With the solenoid valve de-energized the spring chamber of the LE vents to tank and thus the poppet shifts allowing flow from port ‘1’ to ‘2’
16SLC1-B-**
SYSTEM
50 GPM 3000 Psi


Normally Open Controlled w/ 2-Way, 2 Position
DSL102N
When Solenoid Valve is energized, the spring chamber of the LE is blocked. Then the spring chamber is pressurized and the LE closes (2:1 ratio)
16SLC1-B-**
SYSTEM
50 GPM 3000 Psi


Normally Open Controlled with 2-Way, 2 Position and “SLC1-C” LE
DSL102N
A
16SLC1-C-**
DIRECTION OF FLOW
B


Normally Open Controlled with 2-Way, 2 Position and “SLC1-C” LE
DSL102N
With the solenoid valve de-energized the spring chamber of the LE vents to tank and thus the poppet shifts allowing flow from port ‘2’ to ‘1’
50 GPM 3000 Psi
16SLC1-C-**
SYSTEM


Normally Open Controlled w/ 2-Way, 2 Position and “SLC1-C” LE
DSL102N
When Solenoid Valve is energized, the spring chamber of the LE is blocked. Then the spring chamber is pressurized and the LE closes (2:1 ratio)
16SLC1-C-**
SYSTEM
50 GPM 3000 Psi


Normally Open External Pilot Controlled w/ 2-Way, 2 Position
Pilot
B
A Direction of Flow


Normally Open Controlled w/3-Way, 2 Position SV
DSL103B
LE
20SLC1-A-25
B
DIRECTION OF FLOW
Pilot
A


Normally Open Controlled w/3-Way, 2 Position
With the SV deenergized: •The external pilot pressure is blocked. •The spring chamber of LE the LE vents to tank 20SLC1-A-25 thru SV and thus the poppet shifts allowing flow from ‘A’ to ‘B’ or vice versa.
A
DSL103B
SV
B
DIRECTION OF FLOW
Pilot


Normally Open Controlled w/3-Way, 2 Position
SV
When SV is energized, the LE external pilot 20SLC1-A-25 pressurizes the spring chamber of LE. Then the LE closes (2:1 ratio), so no flow passes thru.
A
DSL103B
B
DIRECTION OF FLOW
Pilot


Normally Open Controlled w/3-Way, 2 Position & Shuttle Valve
SV
DSL103B
LE
20SLC1-A-25
B
SH
CS041B
DIRECTION OF FLOW
A


Normally Open Controlled w/3-Way, 2 Position & Shuttle Valve
With the SV deenergized: •The spring chamber of LE vents to tank thru SV and thus the poppet shifts allowing flow from ‘A’ to ‘B’ or vice versa. •The pressure sensed by SH valve is blocked.
A
SV
DSL103B
LE
B
SH
CS041B
DIRECTION OF FLOW


Normally Open Controlled w/3-Way, 2 Position & Shuttle Valve
DSL103B
With SV Energized: •The pressure sensed by SH valve passes thru SV and pressurizes the spring chamber of LE . •Then the LE closes (2:1 ratio), so no flow passes thru.
A
SV
LE
20SLC1-A-25
B
SH
CS041B
DIRECTION OF FLOW


High Flow Soft Shift, 2-Way, 2 Position Normally Closed
B
DIRECTION OF FLOW
SV
DSL103N Ų .020 Ų .030 Ų .035
LE1
LE2
LE3
SH
20SLC1-A-150 20SLC1-A-75 20SLC1-A-25 CS041B
A


High Flow Soft Shift, 2-Way, 2 Position Normally Closed The SH valve will
With SV De-energized, all spring chambers on the Logic Elements are Blocked and thus no flow from “A” to “B” or vice versa.
B
send pilot flow from whatever direction the flow is coming from.
DIRECTION OF FLOW
SV
DSL103N Ų .020 Ų .030 Ų .035
LE1
LE2
LE3
SH
20SLC1-A-150 20SLC1-A-75 20SLC1-A-25 CS041B
A


High Flow Soft Shift, 2-Way, 2 Position Normally Closed
With SV Energized, all spring chambers on the Logic Elements vent to tank thru SV. This allows flow from “A” to “B” or vice versa. The SH valve senses flow from “A” but is blocked..
B
DIRECTION OF FLOW
SV
DSL103N Ų .020 Ų .030 Ų .035
LE1
LE2
LE3
SH
20SLC1-A-150 20SLC1-A-75 20SLC1-A-25 CS041B
A


High Flow Selector
A B
LE1
LE2
SV
20SLC1-A-50
20SLC1-A-50
DSL104B
SUPPLY


High Flow Selector
A B
LE1
20SLC1-A-50
LE2
With SV Deenergized: •LE1 spring chamber vents to tank, then valve opens allowing flow to “A”. •LE2 spring chamber is pressurized, then valve closes.
80 GPM 3000 Psi
SV
DSL104B


High Flow Selector
A B
LE1
LE2
20SLC1-A-50
With SV Energized: •LE1 spring chamber is pressurized, then valve closes. •LE2 spring chamber vents to tank, then valve opens allowing flow to “B”.
80 GPM 3000 Psi
SV
DSL104B

。