Sprinkler Design Software
|HASS® (Hydraulic Analyzer of Sprinkler Systems)
was first licensed in 1976 as a tool for easy
use by engineers, sprinkler contractors and reviewers
alike. Now HASS gives you the tools you need to
determine water supply adequacy based on system
demand and distribution piping. With HASS, you
can perform hydraulic analysis in accordance with
NFPA 13, calculating any connection of nodes and
pipes. What's more . . . you get major revisions,
year in and year out into the New Millennium,
with new features at no extra charge
HASS includes more than just the ability
to calculate. For gridded systems, the Grid
Estimator gives proposed pipe sizes, and automatically
generates node and pipe data. Similarly, the
Tree Generator gives node and pipe data using
the ordinary hazard piping schedule or uses
pipe sizes you specify. When you use the System
Builder, you can combine pipe segments into
branch lines, locate cross mains and riser nipples,
then let the System Builder automatically generate
node and pipe data . . . ideal for more complex
piping arrangements such as multiple cross main
grids. (In each of these cases, the Pipe-to-Source
Option lets you tie the system to the source
before generating data.) HASS includes Darcy-Weisbach
calculation capability for NFPA 750 water mist
systems and flow calculations for other fluids
such as foam concentrate.
HASS printed reports follow the NFPA 13 format,
and include calculation results as well as graphics
N1.85 water supply curves and flowplot diagrams
with the ability to transfer reportsby e-mail.
A review of HASS benefits follows:
- AUTOMATIC PEAKING
the grid proves the remote area.
- MINIMUM PIPE SIZES
are determined by the GRID ESTIMATOR.
- MINIMUM END HEAD FLOW
OR PRESSURE (single or multiple nodes)
as well as total supply calculates quickly.
- DENSITY AND AREA SPECIFICATION
on a per node basis, gives an alternative
to minimum end head specification.
- VELOCITY PRESSURES
can be used in the calculations required by
- DARCY-WEISBACH CALCULATION
of water mist systems as required by NFPA
750 and foam concentrate piping.
- AUTOMATIC FITTING
LENGTH ADJUSTMENT based on Schedule
40 data, is in accordance with NFPA 13.
- PIPE TABLE
entry by nominal diameter and fittings by
letter speeds up data entry even more.
- SYSTEM BUILDER
develops complex piping arrangements (especially
MULTIPLE CROSS-MAIN GRIDS).
option ties the system to the source before
developing the Grid, Tree, or more complex
- NODE & PIPE DATA
automatically generated by GRID ESTIMATOR,
TREE GENERATOR & SYSTEM BUILDER.
- DELUGE SYSTEM
option generates a system with all sprinklers
- INTELLIGENT TAG GENERATION
assigns the next sequential tag from the current
- AUTOMATIC POSTING
of coversheets and riser nameplates keeps
data updated whenever a data file is recalculated.
- MISSING PIPE IDENTIFIER
locates points of discontinuity, where pipe
data entry may be in error.
- FIRE PUMP
entry is by rated flow and pressure or by
five points of pump curve.
- METER, BACKFLOW PREVENTER
AND PRESSURE REDUCER entry is by manufacturer's
pressure loss data.
- NEGATIVE PRESSURES
are permitted at non-flowing nodes.
- VIRTUALLY UNLIMITED
SYSTEM SIZE with more than 1,000 nodes
calculating in just a few minutes.
- DIRECTORY ACCESS
lets you select files for sprinkler data,
pipe tables, cover sheets, and riser nameplates.
- HELP SCREENS
provide advice and direction on request.
- AUTOMATIC SAVE
prevents loss of all data on power failure,
and allows data entry in more than one session.
- GLOBAL AND INDIVIDUAL
CHANGES speed up the editing process
for both nodes and pipes.
- INSERT AND DELETE
lets you make node or pipe changes at any
point in the data sequence.
- FIND AND REPLACE
lets you change attributes for data fields
in the same column, and confirm each change.
- EQUIVALENT CALCULATORS
(K-factors, branch lines, grids, rolled grooves,
and fitting lengths) eases data entry.
- CUSTOMIZE PROGRAM
DEFAULTS lets you specify the upper
and lower limits for certain values within
- MERGE option
lets you tie one system to . . . and feed
it from . . . another system.
option lets you provide a smooth numerical
sequence for your extensive node and pipe
- HAMMER UTILITY
for analysis of rapid deceleration of water
flow in pipes.
- WATER SUPPLY FLOW
TEST UTILITY simplifies the reporting
of test results.
- PRINTED REPORTS
follow the NFPA 13 format.
- PIPE TABLE VERIFICATION
assures that the pipe table for printing matches
the pipe table used for data entry.
- REPORTS display
on the screen, and print as a quick copy or
in a detailed format for submittal or e-mail
- DELUGE REPORT
can show required and actual densities for
each node listed.
- COVERSHEETS AND RISER
NAMEPLATES are developed from templates,
saved and printed with reports.
- N1.85 WATER SUPPLY
ANALYSIS, LAYOUT AND FLOWPLOT DIAGRAMS
use graphics displays / printouts.
- EARTHQUAKE BRACING
LOAD CALCULATION for sprinkler pipe
sway bracing design.