Ross Controls PRECONFIGURED LEAK TEST MANIFOLDS SERIES LT - Manual (Page 2)

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Series LT Leak Test Valves & Manifolds
5/4 Manifolds
Manifold valve 5-port 4-position, normally closed.
Operator: External piloted, multi-solenoid
actuated.
Applications: Two channel Pressure Decay,
Differential Pressure.
PILOT
EXHAUST INLET 1 INLET 2 P1 P2
TEST 1
TEST 2
Port Size Model Number Avg. Dimensions inches (mm) Weight
1 2 NC C
V
Length Width Height lb (kg)
1/2 1/2 LT54NA47500W 5.0 5.13 (130.3) 3.75 (95.3) 2.84 (72.1) 3.2 (1.5)
Dimensions – inches (mm)
0.812
(20.6)
0.81
(20.6)
2.84
(72.1)
2.28
(57.9)
1.66
(42.2)
0.63
(16.0)
1.25
(31.8)
1/4-20 UNC
Mounting Holes
1.25
(31.8)
2.81 (71.4)
1.88
(47.8)
3.75
(95.3)
5.13 (130.3)
1/8-27 NPT
(2 Places)
TEST PORT TEST PORT
2 1
0.56 (14.3)
1/2-14 NPT
(2 Places) 0.81
(20.6)
1/2-14 NPT
(2 Places)
3/4-14 NPT
INLET 1 INLET 2
PILOT
EXH
P1 P2
1.25
(31.8)
1.25
(31.8)
BOTTOM VIEW
The LT 4/4 and 5/4 manifolds are “all in one” directional control valves designed to fill, isolate, and test pressure containing vessels.
All manifolds contain integrated sensor ports for flow, pressure decay or differential pressure testing. With dual inlet ports, and
independent actuation of four internal poppets these manifolds also provide a flexible, high flow, compact air distribution solution
for many other applications.
STANDARD SPECIFICATIONS:
For Series LT 3/4, 4/4, 5/4 Manifolds.
Pilot Solenoid: DC power. Rated for continuous duty.
Standard Voltages: 24 volts DC; 120 volts AC, 50/60 Hz.
Power Consumption:
Per Solenoid: 3 VA on AC; 2.5 watts on DC.
Ambient/Media Temperature: 40° to 120°F (4° to 50°C).
Flow Media: Filtered air; 5 micron recommended.
Sensor Port: 1/8 NPT sensor ports.
Pilot Pressure: 50 to 145 psi (3.4 to 10 bar). Must be equal to
or greater than inlet pressure.
Inlet Pressure: 2 to 145 psi (0.13 to 10 bar).
Port Threads: NPT.
* For 120 volts AC, 50/60 Hz, replace suffix “W” with “Z”, e.g., LT32NA27500Z.
Electrical connectors not included, see page 26 for ordering information.
IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS on the inside back cover.