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> Siemens moore nullmatic 1/8" pressure regulator 41-15
Siemens moore nullmatic 1/8" pressure regulator 41-15
NULLMATIC MOORE PRESSURE REGULATOR 1/8"
SIEMENS MOORE NULLMATIC 41-15 PRECISION AIR REGULATOR
Used to control air pressures in applications where precise and
dependable regulation is required, such as pneumatic instrumentation
* Model 41-15 or 41A15 or 14965-15S1AK
* Spring size - 0-15 psi pressure range
* Recommended air supply - 75-150 psi.
* Can be panel mounted in horizontal position
* Adjustable black knob - 1.5" dia.
* Factory springs are available for other pressure ranges
* Height - 4.5" Width - 2.5"
Multi-stage, low-droop precision regulators maintain
Epoxy powder coat paint delivers improved corrosion
Patented Nullmatic pressure regulation system provides
reliable maintenance-free operation
A fine-turn, precision screw is used to manually load the
range spring, which sets the regulated pressure. When the
adjusting knob is turned clockwise, the increased spring
force is exerted on the top diaphragm assembly, decreasing
the nozzle clearance and increasing the pilot pressure.
Because the source for pilot pressure is supply air flowing
to the pilot pressure chamber through the restriction screw,
the increased pilot pressure forces the exhaust diaphragm
assembly downward. This action closes the exhaust port,
and contacts and moves the valve plunger, which opens
the supply port. This increases the regulated output, which
also feeds back to the top diaphragm assembly. The regulator
locks-up or throttles at the new output value when
A safety release valve is incorporated in the top diaphragm
assembly of several models. It operates if the regulated
pressure increases 3 to 5 psig more than the set pressure
and exhausts air through the atmospheric vent in the top
housing. Overpressure causes the diaphragm to move upward,
which opens the safety release valve. SPECIFICATIONS
Better than 0.03 of regulated output
Maximum & recommended pressures are listed on
Minimum: 5 psig above regulated output
Nominal ratio of change in regulated pressure for a
Approximately 1% of set pressure with standard
range spring; and approximately 0.1% with
Isothermal spring for 50 F (27 C) temperature
