| 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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| General Rubber |
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Expansion Joints for Pressure Piping
Expansion Joints for Ducting Systems Non-Metallic (Rubber) Expansion Joints are used in Piping and Ducting Systems for Motion Compensation, Stress Relief, as well as Noise and Vibration Control. | |
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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. |
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 |
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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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| Nicholson Steam |
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| Norriseal Controls |
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Valves & Controls
Quality Construction,
Superior Technical Support |
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| Senior Flexonics |
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| Senior Flexonics Has Answers to Pipe Motion Problems |
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| Spence Steam |
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| Spence/SSI |
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Strainers |
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Valves |
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Connectors |
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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. | |
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| Watson McDaniel |
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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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