| Valves &
Specialties Group |
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| Crane |
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| Durabla Valve Company |
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| Elbi |
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| Expansion Tanks &
Specialties |
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Domestic/Hydronic/Well |
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ASME & Non Coded
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ASME Air Separators
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Gerand
Engineering
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The Company
Gerand Engineering company was founded in 1965 by a qualified team of
engineers with years of experience dedicated to providing outstanding
quality products for hydronic balancing in the HVAC industry.
The
Products
Gerand's product line consists
of Venturis, Indicators (orifice type) and Balvalve-Venturis (one-piece
unit, fixed Venturi and valve) manufactured by Gerand and meters used
to balance the hydronic and air systems.
Venturis and indicators are furnished with a set of meter fittings
(nipples, valves, and quick disconnects).
Balvalve-Venturis have nipples and
quick disconnects.
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A chained metal tag is furnished with all
flow devices. The tag shows the unit size,
unit location, the GPM and corresponding
meter reading in inches of water (ÄP).
Accuracy and Calibration
Found in
Gerand's complete catalog are
curves that have been based on independent
Test Laboratory Calibrations. An accuracy of
± 1% is standard as a result of these calibrations.
Specifications
Gerand suggests
using Venturis on all units at least
2-1/2" and larger for ultimate accuracy and lowest possible head loss.
Orifices may also be used
though the permanent head loss, with orifices is substantially
increased from that of Venturis.
On 1/2" through 2" lines we recommend using
Balvalve-Venturis furnished as a one-piece
Venturi/valve with a memory lock on the handle.
All flow fittings should be supplied with chained
metal tag indicating the unit size, unit location, GPM
and corresponding differential reading in inches of water. Venturis and
indicators should be supplied
with nipple, valve and quick disconnect meter fittings.
Balvalve-Venturis should be supplied with nipples
and quick disconnects.
A portable 0-50" or 0-100" differential meter shall be used for
balancing flow in all units. meter should be furnished as part of the
system.
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| Hays Fluid Controls |
Superior Valves
for Superior
Fluid Control
Hays Fluid controls makes the
world's most effective automatic flow control valves and related vital
components for the HVAC industry. Hays products work quietly and
dependably to control water flow, saving money and energy with their
unique designs.
Hays Fluid Controls flow rates range from as low as 0.5 GPM to over
7,000 GPM, with pressure differentials from 2 to 150 PSID.
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Saving You
Money, Protecting
Your Equipment
Hays Automatic valve products
are much more economical than manual systems. In a typical manual
balancing system, circuit balancing valves are required at all terminal
units as well as the riser. The system has to be tediously
(=expensively) rebalanced whenever a new terminal unit is brought
online.
Hays automatic valves are only required at the terminal units. No
controls are needed on the risers, and the system does not have to be
rebalanced when a new unit is added. This can reduce installation costs
60% or more, depending on the configuration.
In any office with varying cooling
requirements in diverse locations, the HVAC system can reduce pump
speed to meet only the chilled water needs for warmer locations, again
enabling a substantial energy savings.
Hays automatic valves save even more money
by providing the correct flow to protect much more expensive equipment
downstream such as chillers and cooling towers, water source heat
pumps, fan coils, air handlers, and other heating and cooling systems.
Hays automatic valves run for decades without any need for cleaning,
saving substantial dollars over the lifecycle of a system.
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| Maid-O-Mist |
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| Miljoco |
 | Miljoco Corporation designs, manufactures and distributes cost-effective
temperature and pressure instruments of superb quality to a diverse
marketplace. Miljoco serves its customers by maintaining appropriate
growth and profitability while operating in a socially acceptable and
environmentally responsible manner. This philosophy, along with our
commitment to exceptional customer service, has placed Miljoco
thermometers and gauges in restaurants, manufacturing plants,
supermarkets and high rises across the United States and around the
World.
Miljoco Catalog |  |  |
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| Nicholson Steam |
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| Norriseal Controls |
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Valves & Controls
Quality Construction,
Superior Technical Support |
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| Spence Steam |
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| SVF Flow Controls |
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The SVF Technical Center houses our state of
the art training classes where our customers learn all aspects of our
products' design and use. We also maintain a clean room for sanitary
valve assembly, a testing and calibration station and a full array of
sensitive measuring instruments to ensure the highest quality
manufacturing and ultimate valve performance.
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| Trerice |
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Instruments -
Thermometers - Gauges
Since 1923 the H.O.
Trerice Co. has consistently produced the "complete line" of
instrumentation and controls available to industry. Trerice has
achieved this while maintaining an international reputation for
excellence in product design and quality. With pride, we present this
brief introduction to the Complete Line of Trerice Products. Trerice Catalog
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| Watson McDaniel |
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Watson McDaniel Catalog
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Steam
Traps |
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Pressure
Regultors |
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Temperature
Regulators |
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Condensate
Pumps |
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Relief Valves |
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Liquid Drainers |
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Specialty Products |
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