© 2010-2023 Pressure Specialist Inc. © 2010-2023 Pressure Specialist Inc.
© 2010-2023 Pressure Specialist Inc. © 2010-2023 Pressure Specialist Inc.
WARNING: THIS IS NOT A TOY IMPROPER
USE CAN RESULT IN INJURY OR DEATH DO NOT USE
THE LPR PRIOR TO READING THIS MANUAL IN ITS
ENTIRET.
WARNING: The paintball tank must have a
regulator, which regulates the air source the optimal
regulator output is 500 psi. Ninja offers a full line of air
systems, visit www.ninjapaintball.com
April 2023
NINJA LOW-PRESSURE
REGULATOR V2 OWNER’S MANUAL
Part number: NINJA-LPRV2
The Ninja LPRV2 is a low pressure regulator
for Airsoft markers.
• Construction: Aluminum.
• Inlet Pressure: Max 1000 PSI.
• Adjustment Range: 0 -160 PSI.
• Resetting Relief Valve: 140-150 PSI.
(NOT SERVICEABLE DO NOT
REMOVE OR TAMPER WITH).
• Lubrication: Any Silicone based,
NON-PETROLEUM LUBRICANT.
• Adjustment: 3/16” Allen wrench.
• Tournament Legal: Can be locked out with a zip tie.
• Pressure Gauge: 0-160 PSI.
• Piston: 015-90 red urethane oring for ease of maintenance.
• Break In Period: 1000-3000 Cycles.
• Maintenance kit included (Quantity (2) of #7 red O-ring 015)
The Ninja LPRV2 is designed to be used with a standard
regulated paintball air source, available in 3000 and 4500 psi
bottles.
B
D
E
A
F
C
Features:
A. Pressure adjustment.
B. Tournament Lock zip tie holes.
C. Maintenance only access lock set screw.
D. Pressure Relief Valve assembly.
E. Low Pressure Reference Gauge.
F. Low Pressure Quick Disconnect.
QUICK START GUIDE (reference figure 1):
• Verify Adjuster (Figure 1: A.) is at the maximum, turning
counter clockwise until it stops, using a 3/16 Allen (hex) key.
• Completely attach the regulated air source with a verified
output pressure of 500 psi.
• The pressure gauge is for reference only. The velocity
should be set following the engine manufacturers specifica-
tions utilizing a chronograph designed for airsoft use.
• Rotating the adjuster CLOCKWISE will INCREASE the
output pressure.
• Rotating the adjuster COUNTER CLOCKWISE will
DECREASE the output pressure.
• In General, increasing the output pressure will increase the
velocity of the airsoft engine.
• Using small 5° Clockwise adjustments (right hand) to
increase velocity and verify using a chronograph.
• Small Counter Clockwise adjustments to reduce velocity
must be followed by several clearing shots.
• If the air pressure is increased beyond the factory Resetting
Pressure Relief Valve (Figure 1: D.) set point (140-150psi), the
Resetting Pressure Relief Valve will begin to vent. Quickly
turn the adjuster at least one full turn Counter Clockwise to
decrease the pressure output and the Resetting Pressure
Relief Valve will reset.
• Due to the Ninja LPRV2 design, the air source tank and
regulator should turn easily, unthread from the Ninja LPRV2
smoothly and de-gas with a small vent of air after unthread-
ing two full turns and before three full turns are completed.
Figure 1
