CAUTION
Hansen pressure regulators are only for refrigeration
systems. These instructions and related safety
precautions must be read completely and understood
before selecting, using, or servicing these valves. Only
knowledgeable, trained refrigeration technicians
should install, operate, or service these valves. Stated
temperature and pressure limits should not be
exceeded. Adapters, bottom cap, control modules, etc.,
should not be removed from valves unless system has
been evacuated to zero pressure. See also Safety
Precautions in the current List Price Bulletin and the
Safety Precautions Sheet supplied with the product.
Escaping refrigerant can cause injury, particularly to
the eyes and lungs.
WARRANTY
All Hansen Technologies products, except electric
motors and electronic items, are warranted against
defects in workmanship and materials for a period of
one year F.O.B. our plant. Electric motors and
electronic items are warranted against defects for 90
days. No consequential damages or field labor is
included.
REGULATOR ACCESSORIES
STRAINERS
Generous capacity, separate, close-coupled, 60
mesh (233 Micron Rating), accessible.
GAUGES
Pressure gauges have 3½" (90 mm) diameter faces,
safe plastic lenses, ¼" NPT connection, and
recalibration features. Available for ammonia and
halocarbon.
GAUGE VALVES
HGV1 “Long Neck” Gauge Valve, Seal Cap, ¼"
MPT x FPT.
PILOT LIGHTS
(specify voltage)
Pilot Light with NEMA 1 Box
(green, red, or amber light)
Watertight Pilot Light assembly with NEMA 4 box.
(green, red, or amber light)
CONVERSIONS
1" (inch) = 25.4 mm
1°F =
5
/9°C
Temperature in °F = 1.8°C + 32
Temperature in °C =
5
/9 (°F – 32) 1
psi = 0.06895 bar = 6.895 kPa
Cv (U.S. GPM) = Kv multiplied by 1.156
1 U.S. Gallon = 0.8327 Imperial Gallons = 3.7854
liters
1 U.S. GPM (gallons per minute) = 0.06309 dm
3
/s (or
L/s) = 0.227124 m
3
/hr
1 American Standard Commercial Ton of Refrigeration
= 12000 Btu/h = 3024 kcal/h = 3.517 kW
ORDERING INFORMATION, HA4A
MODULAR PRESSURE REGULATORS
5" & 6" are type HA4W with integral butt weld end only. 1¼" is
standard 2-bolt flange design; 4-bolt flange style available
upon request to field replace 1¼" R/S.
=25% and 50% Reduced Capacity Plugs are also available.
TO ORDER: Specify type, connection style and size,
range, voltage for coil, and close-coupled strainer if
required. The strainer is a separate stainless steel 60
mesh unit which usually connects directly to the
regulator inlet. Optional pilot lights are available in
green, red, and amber. Please specify color and voltage
when ordering the valve.
TYPICAL SPECIFICATIONS
“Refrigerant pressure regulators shall be pilot-
operated, with disc-type pistons having Teflon seals,
manual-opening stems, equipped with removable pilot
modules, Teflon main seats and stainless steel pilot
trim and optional, close- coupled inlet strainers, as
manufactured by Hansen Technologies Corporation or
approved equal.”
OTHER PRODUCTS
Small Pressure Regulators and Reliefs
Gauge, Purge, and Needle Valves
Shut-Off Valves
Hand Expansion Valves (Regulators)
Refrigerant Solenoid Valves
Refrigerant Check Valves
Gas-Powered Valves
Refrigerant Float Switches
Float Drain Regulators
Refrigerant Liquid Pumps
AUTO-PURGER
®
s
Vari-Level
®
Adjustable Level Controls
Techni-Level
®
Transducer Probes
Frost Master
®
Defrost Controllers
Pressure-Relief Valves
© 2004 Hansen Technologies Corporation
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