Data Sheet

31
CommerCial/industrial HigH-pressure regulators
64 Series
High-pressure (pounds-to-pounds) regulators usually reduce tank
pressure to an intermediate pressure for use by another regulator.
They may be used as high-pressure regulators on distribution
systems when used in conjunction with a First-Stage downstream
regulator. The Type 64SR may be used for First-Stage when set at
10 psig / 0.69 bar. They are also used for Final-Stage service on
high-pressure burners in crop dryers and tobacco curers, as well as
other medium sized commercial/industrial applications.
The 1/4-inch FNPT side outlet, which is normally plugged, provides
an opening for an outlet pressure gauge. Standard 64’s Series are
capable of handling liquid or vapor at temperatures under 150°F /
66°C. A cover or auxiliary vent assembly should be used to protect
the 1/4-inch FNPT regulator vent opening on outdoor installations.
Temperature rating for the 64 and 64SR Series has a temperature
rating from -20 to 150°F / -29 to 66°C.
64 Series – is an adjustable high-pressure regulator with a wide
range of available outlet pressure ranges. It does not contain a relief
valve. It should always be used in conjunction with a downstream
regulator and/or separate relief devices in compliance with NFPA 58
overpressure protection requirements.
Type 64SR – is a high-pressure regulator, which has an internal
relief valve. As such it may be used as a Final-Stage regulator
on high-pressure systems. It may also be used as a First-Stage
regulator when set at 10 psig / 0.69 bar or less.
Note: 64 Series regulators do not have an internal relief and
should be installed with additional/external overpressure
protection. These units should not be installed in fi xed
piping serving 14 inches w.c. / 35 mbar appliance systems.
Please consult with your LP-Gas Equipment Distributor for
more information.
Note: If the installation location makes the ignition of vented
gas a possibility, then a vent line should be installed from the
Type 64SR vent to a safe location.
High-Pressure Regulators
TYPE NUMBER DESCRIPTION
CAPACITIES (PROPANE)
(1)
OUTLET PRESSURE
SETTING
OUTLET ADJUSTMENT
RANGE
INLET AND OUTLET
CONNECTIONS, INCH
BTU / hour SCMH psig bar psig bar
64-33
Basic Regulator
2,625,000 29.6 10 0.69 3 to 15 0.21 to 1.0
1/2 FNPT
64-35 3,600,000 40.5 20 1.4 5 to 35 0.34 to 2.4
64-36 4,150,000 46.7 40 2.8 30 to 60 2.1 to 4.1
64-222 5,250,000 59.1 50 3.4 35 to 100 2.4 to 6.9
64SR-21
With Internal
Relief Valve
2,625,000 29.6 10 0.69 3 to 15 0.21 to 1.0
64SR-22 3,000,000 33.8 15 1.0 5 to 20 0.34 to 1.4
64SR-23 3,600,000 40.5 20 1.4 5 to 35 0.34 to 2.4
1. Based on inlet pressure 20 psig / 1.4 bar greater than outlet with 20% droop; Liquid capacity = 160 GPH / 606 l/hr.
64 SERIES