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Straight-Thru-Flow Design
All models except RV131 are A.G.A. design certified
for 1/2 psi rated pressure under the ANSI standard for
gas pressure regulators; and CGA listed to certify
compliance with nationally published safety,
construction, and performance standards.
They are main burner only, non-lockup type. They
should not be used as a line gas pressure regulator
ahead of low pressure controls. Use only where
downstream controls can operate at line pressure.
Refer to other Maxitrol sales bulletins for proper
types.
The RV52, RV53, & RV61 are suitable for multipoise
mounting. The RV81, RV91, RV111, & RV131 are
recommended for normal horizontal position only.
Maxitrol's original Straight-Thru-Flow design meets
your needs for high capacities at low inlet pressures.
The basic difference between S-T-F design and other
type regulators lies in the conical valve. The cone
principal permits gas to flow straight through the
regulator without changing directions. Frictional flow
resistance is reduced, resulting in greater capacity.
The improved flow pattern provides accurate
sensitive regulation at extremely low pressure
differentials. The ability of the regulator to handle
large capacity appliances with limited supply
pressure offers a definite advantage to designers of
commercial and industrial gas-fired equipment.
Models up to the three inch pipe size have high
strength pressure cast aluminum housings. The
RV131 four inch model is of cast iron and steel
construction. RV61, RV81, RV91, RV111, & RV131
internal conical valves are coated with Teflon
®
for
long life. Diaphragm material is cut from the finest
synthetic coated fabrics available. All other parts are
carefully specified corrosion-resistant or plated
material.
Pipe sizes of 1/2, 3/4, 1, 1-1/4, 1-1/2, 2, 2-1/2",
3, and 4 are available. Models through the 3" size
are threaded, the 4" RV131 is flanged.
At the emergency exposure limits, there may be no
regulation, but all models will contain gas. They will
suffer no internal damage and will resume regulation
when normal pressure is restored.
Straight-Thru-Flow appliance regulators are intended
for use with all fuel gases, and may also be used with
air or other noncorrosive gases within their pressure
limits.
Typical applications include all types of residential,
commercial and industrial gas-fired appliances and
equipment used on low pressure gas supply. See
Maxitrols Spring Selection Chart for part numbers,
color and size of springs.
NOTE: All Maxitrol appliance regulators should be installed
in accordance with Maxitrols Safety Warning bulletin.
RV
series
FEATURES
Greater accuracyhigher pressure drop capacity
Outlet pressures available to 42 w.c.
Available in full range of pipe sizes from 1/2"
to 4"
All models tapped with NPT vent bosses
A.G.A/CGA Design Certified (except RV131)
BENEFITS
Unique conical valve design fills need of combining
good regulation with high capacity in low to
intermediate pressure range
Allows more pressure drop to be assigned to piping
and valvespermits reduction in manifold size
Provides accurate, sensitive regulation at inlet
pressures as low as 3 w.c.
Also provides bonus benefits of high capacity and
good performance at pressures of 1 psi or higher
Ease of installation and replacement
RV52, RV53, RV61, RV81,
RV91, RV111, and RV131
Teflon is a registered trademark of DuPont Corporation.
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