INSIDE INSIDE - Plumbing & HVAC

Pipes, Valves & Fittings
Waste piping system
Fuseal polypropylene and Fuseal 25/50
polyvinylidene fluoride corrosive waste
piping systems feature high flame retardant
capabilities and high strength at
elevated temperatures. Fittings include
double 45-degree wyes in 1-1/2 to fourinch
sizes, double reducing wyes of 2 x
1-1/2 to 4x 3-inches, along with electrofusion
or mechanical joining systems.
Geo. Fischer Sloane Circle no. 331
Digital control valves
Spence DigiBoss high-capacity hung
cage guided control valves
for modulating applications
feature a digital electronic
actuator, stall-proof
motor that permits shutoff
up to 750 psi, cast iron,
carbon steel or chrome
moly bodies in two to
eight-inch sizes with NPT,
RF and DIN flanged connections.
Spence Engineering Co. Circle no. 332
Grease-oils removal
Big Dipper units remove and recover
nearly 100 percent of grease, fats, solids
and oils from kitchen and food processing
flows, eliminating
traps, interceptors
and pumping
costs. There are
point of source
and central models,
both with internal
strainers of
1.16 to 3.7-gal.,
and automatic solids transfer, with a 20-
40 lbs./hr skimming rate.
Thermaco Inc. Circle no. 333
Mixing valves
Honeywell AMX Series mixing valves
allow the water heater temperature to
be higher than the safely mixed water at
the faucet. Features include a unique recirculation
port that allows hot water to
continuously circulate through the
house. It is adjustable from 90 to 130°F,
includes a built-in check valve and is
solid brass.
Honeywell Ltd. Circle no. 334
Termination flange
The Copper Stopper termination flange
from Kamco transitions a copper tube
back to standard pipe in both indoor
and outdoor
natural gas
applications.
The
cast bronze
flange eliminates
several
feet of excess tube awaiting hook-up to
an appliance, prevents damage to the
tubing, enables pressuring testing and
fits all 3/8, 1/2 and 5/8-inch fittings.
Kamco Products Circle no. 335
Pressure reducing
Apollo A127 LF pressure reducing
valves maintain constant lower downstream
pressure across a wide flow
range, with a pilot valve operating free
of pressure fall-off. Features include a
combined regulator
bypass and
a pilot-operated
main valve with
two smaller
PRVs and a
strainer. It is
available in sizes from 1-1/4-in. or 32
mm to six inches or 150 mm, and temperatures
from 32 - 180°F with a range
of connections.
Conbraco Industries Circle 336
Pipe support
The Caddy rooftop pipe support system
is a UV-rated ‘sled-design’ support with
a 4 x 5 inch
footprint. It
can be bonded
to the roof or
float with pipe
expansion and
contraction. It
holds up to
three 1/2-inch
or two 3/4-inch or 1-inch pipes or conduit.
The pipe-retaining mechanism
ratchets down to hold pipes securely or
can be set for loose guiding.
ERICO Circle no. 337
Flanged circulators
The Armstrong Astro 70F and BF
flanged circulators in cast iron and
bronze are designed for a high head and
low-flow rate
pump with
common twobolt
mounting
flanges or union
and sweat connections.
Features
include a
screw-less terminal
strip and lever-operated spring
clamps that grip each conductor for
easy connection.
Armstrong Pump Circle no. 338
Steel PEX clamp
A stainless steel clamp from CPI connects
Dura-Pro fittings on Dura-PEX
piping installations to create a temperature,
pressure-tight and leak-free connection
between
clamp and insert
fittings. Unique
tabs on clamping
ears allow the
use of a single clamp installation tool
for all clamp sizes.
Consolidated Plumbing Ind. Circle no. 339
23 - 428 Millen Road, Stoney Creek, Ontario L8E 3N9
Phone: (905) 664-8274 • Toll Free: 1-800-527-HEAT (4328) • Fax: (905) 664-8846
www.superiorradiant.com sales@superiorradiant.com
Pressure reducing
The TLV DR20 compact lightweight
steam system pressure reducing valve is
a flow-up design with a flat valve and
plug arrangement to promote secondary
pressure stability
to reach a turnover
ratio of 30:1. It features
stainless steel
packless construction
with a bellows diaphragm
and a builtin
screen.
TLV Corp. Circle no. 340
A full range of infrared space heating equipment
Model RE (for workshops, residential garages)
• rates from 30 and 45 MBTUH
• balanced flue construction
• 85% thermal efficiency
• fully assembled for installation ease
TECH TIP
Equalizing sump water levels
By Jerry Boulanger
If two or more sumps (cooling towers for example) are installed in parallel
it is common to have equalizing lines connecting them so that
they operate at the same water level. The only differential pressure
available to push water from sump to sump is the difference in the
sump water levels. In some applications, this static head differential
may only be on the order of a few inches of water column before the
water level in the high sump reaches the overflow outlet. For example, a six-foot
length of two-inch steel pipe with a ball valve installed between sumps will only flow
about 30 US gpm from one sump to the other if the difference in the sump water levels
is four inches. If equalization lines are not properly sized to handle the required flow at
low differentials, the high sump may flood and lose water (and possibly chemical) out
the overflow. This can be an expensive problem. Increasing the size of the equalization
line, including the entry and exit openings into the sumps, will keep the sumps close to
the same level.
Jerry Boulanger is national sales manager for Axiom Industries Ltd., Saskatoon, Sask.
He can be reached at jboulanger@axiomind.com.
Model Premier VS (engineered performance)
• a vacuum operated burner-in-series system that is
engineered for the customer’s specific requirements
• burner rates 60 to 250 MBTUH
with multiple branch capability
• system outputs to one million BTUH
• state of the art electronic control panel
Two High Low Valves
For the Price of One.
Introducing the Leonard “New Generation” Hi-Low System
SUPERIOR RADIANT PRODUCTS
Model UA (workhorse of the line up)
• rates from 40 to 220 MBTUH
• jet stream burner design maximizes
radiant output
• deep dish reflectors are 100% efficient
• warranty: 3 yr. on parts, 5 yr. on heat exchanger.
Model UX (more features, more
performance)
• fully enclosed construction
• operating status lights
• standard 24v thermostat
• post purge function
• 10 yr. heat exchanger
warranty option
Circle Number 129 for More Information
www.plumbingandhvac.ca November/December 2005 – Plumbing & HVAC Product News 27
NEW
• Maximum Dual-Valve Safety
• Same Price As Single Valves
• Legendary Leonard Reliability
• Simple design, easy installation
1360 Elmwood Avenue, Cranston, RI 02910, 888-797-4456, Fax 401-941-5310
www.leonardvalve.com info@leonardvalve.com
Circle Number 128 for More Information